CVE-2024-40981

一、漏洞信息
 漏洞编号：[CVE-2024-40981](https://nvd.nist.gov/vuln/detail/CVE-2024-40981)
 漏洞归属组件：[kernel](https://gitee.com/src-openeuler/kernel)
 漏洞归属的版本：4.19.140,4.19.194,4.19.90,5.10.0,6.1.0,6.1.14,6.1.19,6.1.5,6.1.6,6.1.8,6.4.0,6.6.0
 CVSS V2.0分值：
  BaseScore：0.0 Medium
  Vector：CVSS：2.0/
 漏洞简述：
  In the Linux kernel, the following vulnerability has been resolved:batman-adv: bypass empty buckets in batadv_purge_orig_ref()Many syzbot reports are pointing to soft lockups inbatadv_purge_orig_ref() [1]Root cause is unknown, but we can avoid spending too muchtime there and perhaps get more interesting reports.[1]watchdog: BUG: soft lockup - CPU#0 stuck for 27s! [kworker/u4:6:621]Modules linked in:irq event stamp: 6182794 hardirqs last  enabled at (6182793): [<ffff8000801dae10>] __local_bh_enable_ip+0x224/0x44c kernel/softirq.c:386 hardirqs last disabled at (6182794): [<ffff80008ad66a78>] __el1_irq arch/arm64/kernel/entry-common.c:533 [inline] hardirqs last disabled at (6182794): [<ffff80008ad66a78>] el1_interrupt+0x24/0x68 arch/arm64/kernel/entry-common.c:551 softirqs last  enabled at (6182792): [<ffff80008aab71c4>] spin_unlock_bh include/linux/spinlock.h:396 [inline] softirqs last  enabled at (6182792): [<ffff80008aab71c4>] batadv_purge_orig_ref+0x114c/0x1228 net/batman-adv/originator.c:1287 softirqs last disabled at (6182790): [<ffff80008aab61dc>] spin_lock_bh include/linux/spinlock.h:356 [inline] softirqs last disabled at (6182790): [<ffff80008aab61dc>] batadv_purge_orig_ref+0x164/0x1228 net/batman-adv/originator.c:1271CPU: 0 PID: 621 Comm: kworker/u4:6 Not tainted 6.8.0-rc7-syzkaller-g707081b61156 #0Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024Workqueue: bat_events batadv_purge_origpstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : should_resched arch/arm64/include/asm/preempt.h:79 [inline] pc : __local_bh_enable_ip+0x228/0x44c kernel/softirq.c:388 lr : __local_bh_enable_ip+0x224/0x44c kernel/softirq.c:386sp : ffff800099007970x29: ffff800099007980 x28: 1fffe00018fce1bd x27: dfff800000000000x26: ffff0000d2620008 x25: ffff0000c7e70de8 x24: 0000000000000001x23: 1fffe00018e57781 x22: dfff800000000000 x21: ffff80008aab71c4x20: ffff0001b40136c0 x19: ffff0000c72bbc08 x18: 1fffe0001a817bb0x17: ffff800125414000 x16: ffff80008032116c x15: 0000000000000001x14: 1fffe0001ee9d610 x13: 0000000000000000 x12: 0000000000000003x11: 0000000000000000 x10: 0000000000ff0100 x9 : 0000000000000000x8 : 00000000005e5789 x7 : ffff80008aab61dc x6 : 0000000000000000x5 : 0000000000000000 x4 : 0000000000000001 x3 : 0000000000000000x2 : 0000000000000006 x1 : 0000000000000080 x0 : ffff800125414000Call trace:  __daif_local_irq_enable arch/arm64/include/asm/irqflags.h:27 [inline]  arch_local_irq_enable arch/arm64/include/asm/irqflags.h:49 [inline]  __local_bh_enable_ip+0x228/0x44c kernel/softirq.c:386  __raw_spin_unlock_bh include/linux/spinlock_api_smp.h:167 [inline]  _raw_spin_unlock_bh+0x3c/0x4c kernel/locking/spinlock.c:210  spin_unlock_bh include/linux/spinlock.h:396 [inline]  batadv_purge_orig_ref+0x114c/0x1228 net/batman-adv/originator.c:1287  batadv_purge_orig+0x20/0x70 net/batman-adv/originator.c:1300  process_one_work+0x694/0x1204 kernel/workqueue.c:2633  process_scheduled_works kernel/workqueue.c:2706 [inline]  worker_thread+0x938/0xef4 kernel/workqueue.c:2787  kthread+0x288/0x310 kernel/kthread.c:388  ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:860Sending NMI from CPU 0 to CPUs 1:NMI backtrace for cpu 1CPU: 1 PID: 0 Comm: swapper/1 Not tainted 6.8.0-rc7-syzkaller-g707081b61156 #0Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : arch_local_irq_enable+0x8/0xc arch/arm64/include/asm/irqflags.h:51 lr : default_idle_call+0xf8/0x128 kernel/sched/idle.c:103sp : ffff800093a17d30x29: ffff800093a17d30 x28: dfff800000000000 x27: 1ffff00012742fb4x26: ffff80008ec9d000 x25: 0000000000000000 x24: 0000000000000002x23: 1ffff00011d93a74 x22: ffff80008ec9d3a0 x21: 0000000000000000x20: ffff0000c19dbc00 x19: ffff8000802d0fd8 x18: 1fffe00036804396x17: ffff80008ec9d000 x16: ffff8000802d089c x15: 0000000000000001---truncated---
 漏洞公开时间：2024-07-12 21:15:19
 漏洞创建时间：2024-07-13 22:23:09
 漏洞详情参考链接：
  https://nvd.nist.gov/vuln/detail/CVE-2024-40981
<details>
<summary>更多参考(点击展开)</summary>

无
</details>

漏洞分析指导链接：
  https://gitee.com/openeuler/cve-manager/blob/master/cve-vulner-manager/doc/md/manual.md
 漏洞数据来源:
  其它
 漏洞补丁信息：
  <details>
<summary>详情(点击展开)</summary>

无
</details>

二、漏洞分析结构反馈
 影响性分析说明：
                  In the Linux kernel, the following vulnerability has been resolved:batman-adv: bypass empty buckets in batadv_purge_orig_ref()Many syzbot reports are pointing to soft lockups inbatadv_purge_orig_ref() [1]Root cause is unknown, but we can avoid spending too muchtime there and perhaps get more interesting reports.[1]watchdog: BUG: soft lockup - CPU#0 stuck for 27s! [kworker/u4:6:621]Modules linked in:irq event stamp: 6182794 hardirqs last  enabled at (6182793): [&lt;ffff8000801dae10&gt;] __local_bh_enable_ip+0x224/0x44c kernel/softirq.c:386 hardirqs last disabled at (6182794): [&lt;ffff80008ad66a78&gt;] __el1_irq arch/arm64/kernel/entry-common.c:533 [inline] hardirqs last disabled at (6182794): [&lt;ffff80008ad66a78&gt;] el1_interrupt+0x24/0x68 arch/arm64/kernel/entry-common.c:551 softirqs last  enabled at (6182792): [&lt;ffff80008aab71c4&gt;] spin_unlock_bh include/linux/spinlock.h:396 [inline] softirqs last  enabled at (6182792): [&lt;ffff80008aab71c4&gt;] batadv_purge_orig_ref+0x114c/0x1228 net/batman-adv/originator.c:1287 softirqs last disabled at (6182790): [&lt;ffff80008aab61dc&gt;] spin_lock_bh include/linux/spinlock.h:356 [inline] softirqs last disabled at (6182790): [&lt;ffff80008aab61dc&gt;] batadv_purge_orig_ref+0x164/0x1228 net/batman-adv/originator.c:1271CPU: 0 PID: 621 Comm: kworker/u4:6 Not tainted 6.8.0-rc7-syzkaller-g707081b61156 #0Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024Workqueue: bat_events batadv_purge_origpstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : should_resched arch/arm64/include/asm/preempt.h:79 [inline] pc : __local_bh_enable_ip+0x228/0x44c kernel/softirq.c:388 lr : __local_bh_enable_ip+0x224/0x44c kernel/softirq.c:386sp : ffff800099007970x29: ffff800099007980 x28: 1fffe00018fce1bd x27: dfff800000000000x26: ffff0000d2620008 x25: ffff0000c7e70de8 x24: 0000000000000001x23: 1fffe00018e57781 x22: dfff800000000000 x21: ffff80008aab71c4x20: ffff0001b40136c0 x19: ffff0000c72bbc08 x18: 1fffe0001a817bb0x17: ffff800125414000 x16: ffff80008032116c x15: 0000000000000001x14: 1fffe0001ee9d610 x13: 0000000000000000 x12: 0000000000000003x11: 0000000000000000 x10: 0000000000ff0100 x9 : 0000000000000000x8 : 00000000005e5789 x7 : ffff80008aab61dc x6 : 0000000000000000x5 : 0000000000000000 x4 : 0000000000000001 x3 : 0000000000000000x2 : 0000000000000006 x1 : 0000000000000080 x0 : ffff800125414000Call trace:  __daif_local_irq_enable arch/arm64/include/asm/irqflags.h:27 [inline]  arch_local_irq_enable arch/arm64/include/asm/irqflags.h:49 [inline]  __local_bh_enable_ip+0x228/0x44c kernel/softirq.c:386  __raw_spin_unlock_bh include/linux/spinlock_api_smp.h:167 [inline]  _raw_spin_unlock_bh+0x3c/0x4c kernel/locking/spinlock.c:210  spin_unlock_bh include/linux/spinlock.h:396 [inline]  batadv_purge_orig_ref+0x114c/0x1228 net/batman-adv/originator.c:1287  batadv_purge_orig+0x20/0x70 net/batman-adv/originator.c:1300  process_one_work+0x694/0x1204 kernel/workqueue.c:2633  process_scheduled_works kernel/workqueue.c:2706 [inline]  worker_thread+0x938/0xef4 kernel/workqueue.c:2787  kthread+0x288/0x310 kernel/kthread.c:388  ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:860Sending NMI from CPU 0 to CPUs 1:NMI backtrace for cpu 1CPU: 1 PID: 0 Comm: swapper/1 Not tainted 6.8.0-rc7-syzkaller-g707081b61156 #0Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : arch_local_irq_enable+0x8/0xc arch/arm64/include/asm/irqflags.h:51 lr : default_idle_call+0xf8/0x128 kernel/sched/idle.c:103sp : ffff800093a17d30x29: ffff800093a17d30 x28: dfff800000000000 x27: 1ffff00012742fb4x26: ffff80008ec9d000 x25: 0000000000000000 x24: 0000000000000002x23: 1ffff00011d93a74 x22: ffff80008ec9d3a0 x21: 0000000000000000x20: ffff0000c19dbc00 x19: ffff8000802d0fd8 x18: 1fffe00036804396x17: ffff80008ec9d000 x16: ffff8000802d089c x15: 0000000000000001x14: 1fffe00036805f10 x13: 0000000000000000 x12: 0000000000000003x11: 0000000000000001 x10: 0000000000000003 x9 : 0000000
 openEuler评分：
  5.5
 Vector：CVSS：2.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
 受影响版本排查(受影响/不受影响)：
  1.openEuler-20.03-LTS-SP4(4.19.90):受影响
2.openEuler-22.03-LTS-SP1(5.10.0):受影响
3.openEuler-22.03-LTS-SP3(5.10.0):受影响
4.openEuler-24.03-LTS(6.6.0):受影响
5.openEuler-22.03-LTS-SP4(5.10.0):不受影响
6.master(6.1.0):不受影响
7.openEuler-24.03-LTS-Next(6.6.0):不受影响

修复是否涉及abi变化(是/否)：
  1.openEuler-20.03-LTS-SP4(4.19.90):否
2.openEuler-22.03-LTS-SP1(5.10.0):否
3.openEuler-22.03-LTS-SP3(5.10.0):否
4.master(6.1.0):否
5.openEuler-24.03-LTS(6.6.0):否
6.openEuler-24.03-LTS-Next(6.6.0):否
7.openEuler-22.03-LTS-SP4(5.10.0):否

三、漏洞修复
安全公告链接：https://www.openeuler.org/zh/security/safety-bulletin/detail/?id=openEuler-SA-2024-1960

Hi openeuler-ci-bot, welcome to the openEuler Community.
I'm the Bot here serving you. You can find the instructions on how to interact with me at Here.
If you have any questions, please contact the SIG: Kernel, and any of the maintainers.

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**issue处理注意事项:** 
**1. 当前issue受影响的分支提交pr时, 须在pr描述中填写当前issue编号进行关联, 否则无法关闭当前issue;**
**2. 模板内容需要填写完整, 无论是受影响或者不受影响都需要填写完整内容,未引入的分支不需要填写, 否则无法关闭当前issue;**
**3. 以下为模板中需要填写完整的内容, 请复制到评论区回复, 注: 内容的标题名称(影响性分析说明, openEuler评分, 受影响版本排查(受影响/不受影响), 修复是否涉及abi变化(是/否))不能省略,省略后cve-manager将无法正常解析填写内容.**
************************************************************************
影响性分析说明:

openEuler评分: (评分和向量)

受影响版本排查(受影响/不受影响): 
1.master(6.1.0):
2.openEuler-20.03-LTS-SP4(4.19.90):
3.openEuler-22.03-LTS-SP1(5.10.0):
4.openEuler-22.03-LTS-SP3(5.10.0):
5.openEuler-22.03-LTS-SP4(5.10.0):
6.openEuler-24.03-LTS(6.6.0):
7.openEuler-24.03-LTS-Next(6.6.0):

修复是否涉及abi变化(是/否)：
1.master(6.1.0):
2.openEuler-20.03-LTS-SP4(4.19.90):
3.openEuler-22.03-LTS-SP1(5.10.0):
4.openEuler-22.03-LTS-SP3(5.10.0):
5.openEuler-22.03-LTS-SP4(5.10.0):
6.openEuler-24.03-LTS(6.6.0):
7.openEuler-24.03-LTS-Next(6.6.0):

-----------------------------------------------------------------------
issue处理具体操作请参考: 
https://gitee.com/openeuler/cve-manager/blob/master/cve-vulner-manager/doc/md/manual.md
pr关联issue具体操作请参考:
https://gitee.com/help/articles/4142

参考网址	关联pr	状态	补丁链接
https://nvd.nist.gov/vuln/detail/CVE-2024-40981	None	None	https://git.kernel.org/stable/c/92176caf9896572f00e741a93cecc0ef1172da07 https://git.kernel.org/stable/c/fed7914858a1f1f3e6350bb0f620d6ef15107d16 https://git.kernel.org/stable/c/40dc8ab605894acae1473e434944924a22cfaaa0 https://git.kernel.org/stable/c/2685008a5f9a636434a8508419cee8158a2f52c8 https://git.kernel.org/stable/c/79636f636126775436a11ee9cf00a9253a33ac11 https://git.kernel.org/stable/c/ae7f3cffe86aea3da0e8e079525a1ae619b8862a https://git.kernel.org/stable/c/82cdea8f3af1e36543c937df963d108c60bea030 https://git.kernel.org/stable/c/154e3f862ba33675cf3f4abf0a0a309a89df87d2
https://ubuntu.com/security/CVE-2024-40981	None	None	https://discourse.ubuntu.com/c/ubuntu-pro
https://www.opencve.io/cve/CVE-2024-40981	None	None	https://git.kernel.org/stable/c/92176caf9896572f00e741a93cecc0ef1172da07 https://git.kernel.org/stable/c/fed7914858a1f1f3e6350bb0f620d6ef15107d16 https://git.kernel.org/stable/c/40dc8ab605894acae1473e434944924a22cfaaa0 https://git.kernel.org/stable/c/2685008a5f9a636434a8508419cee8158a2f52c8 https://git.kernel.org/stable/c/79636f636126775436a11ee9cf00a9253a33ac11 https://git.kernel.org/stable/c/ae7f3cffe86aea3da0e8e079525a1ae619b8862a https://git.kernel.org/stable/c/82cdea8f3af1e36543c937df963d108c60bea030 https://git.kernel.org/stable/c/154e3f862ba33675cf3f4abf0a0a309a89df87d2
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2024-40981
https://security-tracker.debian.org/tracker/CVE-2024-40981	None	None	https://git.kernel.org/linus/40dc8ab605894acae1473e434944924a22cfaaa0

说明：补丁链接仅供初步排查参考，实际可用性请人工再次确认，补丁下载验证可使用CVE补丁工具。
若补丁不准确，烦请在此issue下评论 '/report-patch 参考网址补丁链接1,补丁链接2' 反馈正确信息，便于我们不断优化工具，不胜感激。
如 /report-patch https://security-tracker.debian.org/tracker/CVE-2021-3997 https://github.com/systemd/systemd/commit/5b1cf7a9be37e20133c0208005274ce4a5b5c6a1

CVE-2024-40981

影响性分析说明：
In the Linux kernel, the following vulnerability has been resolved:

batman-adv: bypass empty buckets in batadv_purge_orig_ref()

Many syzbot reports are pointing to soft lockups in
batadv_purge_orig_ref() [1]

Root cause is unknown, but we can avoid spending too much
time there and perhaps get more interesting reports.

[1]

watchdog: BUG: soft lockup - CPU#0 stuck for 27s! [kworker/u4:6:621]
Modules linked in:
irq event stamp: 6182794
 hardirqs last  enabled at (6182793): [&lt;ffff8000801dae10&gt;] __local_bh_enable_ip+0x224/0x44c kernel/softirq.c:386
 hardirqs last disabled at (6182794): [&lt;ffff80008ad66a78&gt;] __el1_irq arch/arm64/kernel/entry-common.c:533 [inline]
 hardirqs last disabled at (6182794): [&lt;ffff80008ad66a78&gt;] el1_interrupt+0x24/0x68 arch/arm64/kernel/entry-common.c:551
 softirqs last  enabled at (6182792): [&lt;ffff80008aab71c4&gt;] spin_unlock_bh include/linux/spinlock.h:396 [inline]
 softirqs last  enabled at (6182792): [&lt;ffff80008aab71c4&gt;] batadv_purge_orig_ref+0x114c/0x1228 net/batman-adv/originator.c:1287
 softirqs last disabled at (6182790): [&lt;ffff80008aab61dc&gt;] spin_lock_bh include/linux/spinlock.h:356 [inline]
 softirqs last disabled at (6182790): [&lt;ffff80008aab61dc&gt;] batadv_purge_orig_ref+0x164/0x1228 net/batman-adv/originator.c:1271
CPU: 0 PID: 621 Comm: kworker/u4:6 Not tainted 6.8.0-rc7-syzkaller-g707081b61156 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024
Workqueue: bat_events batadv_purge_orig
pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
 pc : should_resched arch/arm64/include/asm/preempt.h:79 [inline]
 pc : __local_bh_enable_ip+0x228/0x44c kernel/softirq.c:388
 lr : __local_bh_enable_ip+0x224/0x44c kernel/softirq.c:386
sp : ffff800099007970
x29: ffff800099007980 x28: 1fffe00018fce1bd x27: dfff800000000000
x26: ffff0000d2620008 x25: ffff0000c7e70de8 x24: 0000000000000001
x23: 1fffe00018e57781 x22: dfff800000000000 x21: ffff80008aab71c4
x20: ffff0001b40136c0 x19: ffff0000c72bbc08 x18: 1fffe0001a817bb0
x17: ffff800125414000 x16: ffff80008032116c x15: 0000000000000001
x14: 1fffe0001ee9d610 x13: 0000000000000000 x12: 0000000000000003
x11: 0000000000000000 x10: 0000000000ff0100 x9 : 0000000000000000
x8 : 00000000005e5789 x7 : ffff80008aab61dc x6 : 0000000000000000
x5 : 0000000000000000 x4 : 0000000000000001 x3 : 0000000000000000
x2 : 0000000000000006 x1 : 0000000000000080 x0 : ffff800125414000
Call trace:
  __daif_local_irq_enable arch/arm64/include/asm/irqflags.h:27 [inline]
  arch_local_irq_enable arch/arm64/include/asm/irqflags.h:49 [inline]
  __local_bh_enable_ip+0x228/0x44c kernel/softirq.c:386
  __raw_spin_unlock_bh include/linux/spinlock_api_smp.h:167 [inline]
  _raw_spin_unlock_bh+0x3c/0x4c kernel/locking/spinlock.c:210
  spin_unlock_bh include/linux/spinlock.h:396 [inline]
  batadv_purge_orig_ref+0x114c/0x1228 net/batman-adv/originator.c:1287
  batadv_purge_orig+0x20/0x70 net/batman-adv/originator.c:1300
  process_one_work+0x694/0x1204 kernel/workqueue.c:2633
  process_scheduled_works kernel/workqueue.c:2706 [inline]
  worker_thread+0x938/0xef4 kernel/workqueue.c:2787
  kthread+0x288/0x310 kernel/kthread.c:388
  ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:860
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 0 Comm: swapper/1 Not tainted 6.8.0-rc7-syzkaller-g707081b61156 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024
pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
 pc : arch_local_irq_enable+0x8/0xc arch/arm64/include/asm/irqflags.h:51
 lr : default_idle_call+0xf8/0x128 kernel/sched/idle.c:103
sp : ffff800093a17d30
x29: ffff800093a17d30 x28: dfff800000000000 x27: 1ffff00012742fb4
x26: ffff80008ec9d000 x25: 0000000000000000 x24: 0000000000000002
x23: 1ffff00011d93a74 x22: ffff80008ec9d3a0 x21: 0000000000000000
x20: ffff0000c19dbc00 x19: ffff8000802d0fd8 x18: 1fffe00036804396
x17: ffff80008ec9d000 x16: ffff8000802d089c x15: 0000000000000001
x14: 1fffe00036805f10 x13: 0000000000000000 x12: 0000000000000003
x11: 0000000000000001 x10: 0000000000000003 x9 : 0000000000000000
x8 : 00000000000ce8d1 x7 : ffff8000804609e4 x6 : 0000000000000000
x5 : 0000000000000001 x4 : 0000000000000001 x3 : ffff80008ad6aac0
x2 : 0000000000000000 x1 : ffff80008aedea60 x0 : ffff800125436000
Call trace:
  __daif_local_irq_enable arch/arm64/include/asm/irqflags.h:27 [inline]
  arch_local_irq_enable+0x8/0xc arch/arm64/include/asm/irqflags.h:49
  cpuidle_idle_call kernel/sched/idle.c:170 [inline]
  do_idle+0x1f0/0x4e8 kernel/sched/idle.c:312
  cpu_startup_entry+0x5c/0x74 kernel/sched/idle.c:410
  secondary_start_kernel+0x198/0x1c0 arch/arm64/kernel/smp.c:272
  __secondary_switched+0xb8/0xbc arch/arm64/kernel/head.S:404

The Linux kernel CVE team has assigned CVE-2024-40981 to this issue.

openEuler评分:(评分和向量)
3.9
AV:L/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:L

受影响版本排查(受影响/不受影响):
1.openEuler-20.03-LTS-SP4:受影响
2.openEuler-22.03-LTS-SP1:受影响
3.openEuler-22.03-LTS-SP3:受影响
4.openEuler-22.03-LTS-SP4:不受影响
5.master(6.1.0):不受影响
6.openEuler-24.03-LTS:受影响
7.openEuler-24.03-LTS-Next:不受影响

修复是否涉及abi变化(是/否)：
1.openEuler-20.03-LTS-SP4:否
2.openEuler-22.03-LTS-SP1:否
3.openEuler-22.03-LTS-SP3:否
4.master(6.1.0):否
5.openEuler-24.03-LTS:否
6.openEuler-24.03-LTS-Next:否
7.openEuler-22.03-LTS-SP4:否

@ 经过 cve-manager 解析, 已分析的内容如下表所示:
| 状态  | 需分析 | 内容 |
|:--:|:--:|---------|
|已分析|1.影响性分析说明|In the Linux kernel, the following vulnerability has been resolved:batman-adv: bypass empty buckets in batadv_purge_orig_ref()Many syzbot reports are pointing to soft lockups inbatadv_purge_orig_ref() [1]Root cause is unknown, but we can avoid spending too muchtime there and perhaps get more interesting reports.[1]watchdog: BUG: soft lockup - CPU#0 stuck for 27s! [kworker/u4:6:621]Modules linked in:irq event stamp: 6182794 hardirqs last  enabled at (6182793): [&lt;ffff8000801dae10&gt;] __local_bh_enable_ip+0x224/0x44c kernel/softirq.c:386 hardirqs last disabled at (6182794): [&lt;ffff80008ad66a78&gt;] __el1_irq arch/arm64/kernel/entry-common.c:533 [inline] hardirqs last disabled at (6182794): [&lt;ffff80008ad66a78&gt;] el1_interrupt+0x24/0x68 arch/arm64/kernel/entry-common.c:551 softirqs last  enabled at (6182792): [&lt;ffff80008aab71c4&gt;] spin_unlock_bh include/linux/spinlock.h:396 [inline] softirqs last  enabled at (6182792): [&lt;ffff80008aab71c4&gt;] batadv_purge_orig_ref+0x114c/0x1228 net/batman-adv/originator.c:1287 softirqs last disabled at (6182790): [&lt;ffff80008aab61dc&gt;] spin_lock_bh include/linux/spinlock.h:356 [inline] softirqs last disabled at (6182790): [&lt;ffff80008aab61dc&gt;] batadv_purge_orig_ref+0x164/0x1228 net/batman-adv/originator.c:1271CPU: 0 PID: 621 Comm: kworker/u4:6 Not tainted 6.8.0-rc7-syzkaller-g707081b61156 #0Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024Workqueue: bat_events batadv_purge_origpstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : should_resched arch/arm64/include/asm/preempt.h:79 [inline] pc : __local_bh_enable_ip+0x228/0x44c kernel/softirq.c:388 lr : __local_bh_enable_ip+0x224/0x44c kernel/softirq.c:386sp : ffff800099007970x29: ffff800099007980 x28: 1fffe00018fce1bd x27: dfff800000000000x26: ffff0000d2620008 x25: ffff0000c7e70de8 x24: 0000000000000001x23: 1fffe00018e57781 x22: dfff800000000000 x21: ffff80008aab71c4x20: ffff0001b40136c0 x19: ffff0000c72bbc08 x18: 1fffe0001a817bb0x17: ffff800125414000 x16: ffff80008032116c x15: 0000000000000001x14: 1fffe0001ee9d610 x13: 0000000000000000 x12: 0000000000000003x11: 0000000000000000 x10: 0000000000ff0100 x9 : 0000000000000000x8 : 00000000005e5789 x7 : ffff80008aab61dc x6 : 0000000000000000x5 : 0000000000000000 x4 : 0000000000000001 x3 : 0000000000000000x2 : 0000000000000006 x1 : 0000000000000080 x0 : ffff800125414000Call trace:  __daif_local_irq_enable arch/arm64/include/asm/irqflags.h:27 [inline]  arch_local_irq_enable arch/arm64/include/asm/irqflags.h:49 [inline]  __local_bh_enable_ip+0x228/0x44c kernel/softirq.c:386  __raw_spin_unlock_bh include/linux/spinlock_api_smp.h:167 [inline]  _raw_spin_unlock_bh+0x3c/0x4c kernel/locking/spinlock.c:210  spin_unlock_bh include/linux/spinlock.h:396 [inline]  batadv_purge_orig_ref+0x114c/0x1228 net/batman-adv/originator.c:1287  batadv_purge_orig+0x20/0x70 net/batman-adv/originator.c:1300  process_one_work+0x694/0x1204 kernel/workqueue.c:2633  process_scheduled_works kernel/workqueue.c:2706 [inline]  worker_thread+0x938/0xef4 kernel/workqueue.c:2787  kthread+0x288/0x310 kernel/kthread.c:388  ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:860Sending NMI from CPU 0 to CPUs 1:NMI backtrace for cpu 1CPU: 1 PID: 0 Comm: swapper/1 Not tainted 6.8.0-rc7-syzkaller-g707081b61156 #0Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : arch_local_irq_enable+0x8/0xc arch/arm64/include/asm/irqflags.h:51 lr : default_idle_call+0xf8/0x128 kernel/sched/idle.c:103sp : ffff800093a17d30x29: ffff800093a17d30 x28: dfff800000000000 x27: 1ffff00012742fb4x26: ffff80008ec9d000 x25: 0000000000000000 x24: 0000000000000002x23: 1ffff00011d93a74 x22: ffff80008ec9d3a0 x21: 0000000000000000x20: ffff0000c19dbc00 x19: ffff8000802d0fd8 x18: 1fffe00036804396x17: ffff80008ec9d000 x16: ffff8000802d089c x15: 0000000000000001x14: 1fffe00036805f10 x13: 0000000000000000 x12: 0000000000000003x11: 0000000000000001 x10: 0000000000000003 x9 : 0000000000000000x8 : 00000000000ce8d1 x7 : ffff8000804609e4 x6 : 0000000000000000x5 : 0000000000000001 x4 : 0000000000000001 x3 : ffff80008ad6aac0x2 : 0000000000000000 x1 : ffff80008aedea60 x0 : ffff800125436000Call trace:  __daif_local_irq_enable arch/arm64/include/asm/irqflags.h:27 [inline]  arch_local_irq_enable+0x8/0xc arch/arm64/include/asm/irqflags.h:49  cpuidle_idle_call kernel/sched/idle.c:170 [inline]  do_idle+0x1f0/0x4e8 kernel/sched/idle.c:312  cpu_startup_entry+0x5c/0x74 kernel/sched/idle.c:410  secondary_start_kernel+0x198/0x1c0 arch/arm64/kernel/smp.c:272  __secondary_switched+0xb8/0xbc arch/arm64/kernel/head.S:404The Linux kernel CVE team has assigned CVE-2024-40981 to this issue.|
|已分析|2.openEulerScore|3.9|
|已分析|3.openEulerVector|AV:L/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:L|
|已分析|4.受影响版本排查|openEuler-20.03-LTS-SP4:受影响,openEuler-22.03-LTS-SP1:受影响,openEuler-22.03-LTS-SP3:受影响,openEuler-24.03-LTS:受影响,openEuler-22.03-LTS-SP4:不受影响,master:不受影响,openEuler-24.03-LTS-Next:不受影响|
|已分析|5.修复是否涉及abi变化|openEuler-20.03-LTS-SP4:否,openEuler-22.03-LTS-SP1:否,openEuler-22.03-LTS-SP3:否,master:否,openEuler-24.03-LTS:否,openEuler-24.03-LTS-Next:否,openEuler-22.03-LTS-SP4:否|

**请确认分析内容的准确性, 确认无误后, 您可以进行后续步骤, 否则您可以继续分析.**

CVE-2024-40981

影响性分析说明：
In the Linux kernel, the following vulnerability has been resolved:

batman-adv: bypass empty buckets in batadv_purge_orig_ref()

Many syzbot reports are pointing to soft lockups in
batadv_purge_orig_ref() [1]

Root cause is unknown, but we can avoid spending too much
time there and perhaps get more interesting reports.

[1]

watchdog: BUG: soft lockup - CPU#0 stuck for 27s! [kworker/u4:6:621]
Modules linked in:
irq event stamp: 6182794
 hardirqs last  enabled at (6182793): [&lt;ffff8000801dae10&gt;] __local_bh_enable_ip+0x224/0x44c kernel/softirq.c:386
 hardirqs last disabled at (6182794): [&lt;ffff80008ad66a78&gt;] __el1_irq arch/arm64/kernel/entry-common.c:533 [inline]
 hardirqs last disabled at (6182794): [&lt;ffff80008ad66a78&gt;] el1_interrupt+0x24/0x68 arch/arm64/kernel/entry-common.c:551
 softirqs last  enabled at (6182792): [&lt;ffff80008aab71c4&gt;] spin_unlock_bh include/linux/spinlock.h:396 [inline]
 softirqs last  enabled at (6182792): [&lt;ffff80008aab71c4&gt;] batadv_purge_orig_ref+0x114c/0x1228 net/batman-adv/originator.c:1287
 softirqs last disabled at (6182790): [&lt;ffff80008aab61dc&gt;] spin_lock_bh include/linux/spinlock.h:356 [inline]
 softirqs last disabled at (6182790): [&lt;ffff80008aab61dc&gt;] batadv_purge_orig_ref+0x164/0x1228 net/batman-adv/originator.c:1271
CPU: 0 PID: 621 Comm: kworker/u4:6 Not tainted 6.8.0-rc7-syzkaller-g707081b61156 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024
Workqueue: bat_events batadv_purge_orig
pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
 pc : should_resched arch/arm64/include/asm/preempt.h:79 [inline]
 pc : __local_bh_enable_ip+0x228/0x44c kernel/softirq.c:388
 lr : __local_bh_enable_ip+0x224/0x44c kernel/softirq.c:386
sp : ffff800099007970
x29: ffff800099007980 x28: 1fffe00018fce1bd x27: dfff800000000000
x26: ffff0000d2620008 x25: ffff0000c7e70de8 x24: 0000000000000001
x23: 1fffe00018e57781 x22: dfff800000000000 x21: ffff80008aab71c4
x20: ffff0001b40136c0 x19: ffff0000c72bbc08 x18: 1fffe0001a817bb0
x17: ffff800125414000 x16: ffff80008032116c x15: 0000000000000001
x14: 1fffe0001ee9d610 x13: 0000000000000000 x12: 0000000000000003
x11: 0000000000000000 x10: 0000000000ff0100 x9 : 0000000000000000
x8 : 00000000005e5789 x7 : ffff80008aab61dc x6 : 0000000000000000
x5 : 0000000000000000 x4 : 0000000000000001 x3 : 0000000000000000
x2 : 0000000000000006 x1 : 0000000000000080 x0 : ffff800125414000
Call trace:
  __daif_local_irq_enable arch/arm64/include/asm/irqflags.h:27 [inline]
  arch_local_irq_enable arch/arm64/include/asm/irqflags.h:49 [inline]
  __local_bh_enable_ip+0x228/0x44c kernel/softirq.c:386
  __raw_spin_unlock_bh include/linux/spinlock_api_smp.h:167 [inline]
  _raw_spin_unlock_bh+0x3c/0x4c kernel/locking/spinlock.c:210
  spin_unlock_bh include/linux/spinlock.h:396 [inline]
  batadv_purge_orig_ref+0x114c/0x1228 net/batman-adv/originator.c:1287
  batadv_purge_orig+0x20/0x70 net/batman-adv/originator.c:1300
  process_one_work+0x694/0x1204 kernel/workqueue.c:2633
  process_scheduled_works kernel/workqueue.c:2706 [inline]
  worker_thread+0x938/0xef4 kernel/workqueue.c:2787
  kthread+0x288/0x310 kernel/kthread.c:388
  ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:860
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 0 Comm: swapper/1 Not tainted 6.8.0-rc7-syzkaller-g707081b61156 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024
pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
 pc : arch_local_irq_enable+0x8/0xc arch/arm64/include/asm/irqflags.h:51
 lr : default_idle_call+0xf8/0x128 kernel/sched/idle.c:103
sp : ffff800093a17d30
x29: ffff800093a17d30 x28: dfff800000000000 x27: 1ffff00012742fb4
x26: ffff80008ec9d000 x25: 0000000000000000 x24: 0000000000000002
x23: 1ffff00011d93a74 x22: ffff80008ec9d3a0 x21: 0000000000000000
x20: ffff0000c19dbc00 x19: ffff8000802d0fd8 x18: 1fffe00036804396
x17: ffff80008ec9d000 x16: ffff8000802d089c x15: 0000000000000001
x14: 1fffe00036805f10 x13: 0000000000000000 x12: 0000000000000003
x11: 0000000000000001 x10: 0000000000000003 x9 : 0000000000000000
x8 : 00000000000ce8d1 x7 : ffff8000804609e4 x6 : 0000000000000000
x5 : 0000000000000001 x4 : 0000000000000001 x3 : ffff80008ad6aac0
x2 : 0000000000000000 x1 : ffff80008aedea60 x0 : ffff800125436000
Call trace:
  __daif_local_irq_enable arch/arm64/include/asm/irqflags.h:27 [inline]
  arch_local_irq_enable+0x8/0xc arch/arm64/include/asm/irqflags.h:49
  cpuidle_idle_call kernel/sched/idle.c:170 [inline]
  do_idle+0x1f0/0x4e8 kernel/sched/idle.c:312
  cpu_startup_entry+0x5c/0x74 kernel/sched/idle.c:410
  secondary_start_kernel+0x198/0x1c0 arch/arm64/kernel/smp.c:272
  __secondary_switched+0xb8/0xbc arch/arm64/kernel/head.S:404

The Linux kernel CVE team has assigned CVE-2024-40981 to this issue.

openEuler评分:(评分和向量)
3.9
AV:L/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:L

受影响版本排查(受影响/不受影响):
1.openEuler-20.03-LTS-SP4:受影响
2.openEuler-22.03-LTS-SP1:受影响
3.openEuler-22.03-LTS-SP3:受影响
4.openEuler-22.03-LTS-SP4:不受影响
5.master(6.1.0):不受影响
6.openEuler-24.03-LTS:受影响
7.openEuler-24.03-LTS-Next:不受影响

修复是否涉及abi变化(是/否)：
1.openEuler-20.03-LTS-SP4:否
2.openEuler-22.03-LTS-SP1:否
3.openEuler-22.03-LTS-SP3:否
4.master(6.1.0):否
5.openEuler-24.03-LTS:否
6.openEuler-24.03-LTS-Next:否
7.openEuler-22.03-LTS-SP4:否

CVE-2024-40981

影响性分析说明：
In the Linux kernel, the following vulnerability has been resolved:

batman-adv: bypass empty buckets in batadv_purge_orig_ref()

Many syzbot reports are pointing to soft lockups in
batadv_purge_orig_ref() [1]

Root cause is unknown, but we can avoid spending too much
time there and perhaps get more interesting reports.

[1]

watchdog: BUG: soft lockup - CPU#0 stuck for 27s! [kworker/u4:6:621]
Modules linked in:
irq event stamp: 6182794
 hardirqs last  enabled at (6182793): [&lt;ffff8000801dae10&gt;] __local_bh_enable_ip+0x224/0x44c kernel/softirq.c:386
 hardirqs last disabled at (6182794): [&lt;ffff80008ad66a78&gt;] __el1_irq arch/arm64/kernel/entry-common.c:533 [inline]
 hardirqs last disabled at (6182794): [&lt;ffff80008ad66a78&gt;] el1_interrupt+0x24/0x68 arch/arm64/kernel/entry-common.c:551
 softirqs last  enabled at (6182792): [&lt;ffff80008aab71c4&gt;] spin_unlock_bh include/linux/spinlock.h:396 [inline]
 softirqs last  enabled at (6182792): [&lt;ffff80008aab71c4&gt;] batadv_purge_orig_ref+0x114c/0x1228 net/batman-adv/originator.c:1287
 softirqs last disabled at (6182790): [&lt;ffff80008aab61dc&gt;] spin_lock_bh include/linux/spinlock.h:356 [inline]
 softirqs last disabled at (6182790): [&lt;ffff80008aab61dc&gt;] batadv_purge_orig_ref+0x164/0x1228 net/batman-adv/originator.c:1271
CPU: 0 PID: 621 Comm: kworker/u4:6 Not tainted 6.8.0-rc7-syzkaller-g707081b61156 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024
Workqueue: bat_events batadv_purge_orig
pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
 pc : should_resched arch/arm64/include/asm/preempt.h:79 [inline]
 pc : __local_bh_enable_ip+0x228/0x44c kernel/softirq.c:388
 lr : __local_bh_enable_ip+0x224/0x44c kernel/softirq.c:386
sp : ffff800099007970
x29: ffff800099007980 x28: 1fffe00018fce1bd x27: dfff800000000000
x26: ffff0000d2620008 x25: ffff0000c7e70de8 x24: 0000000000000001
x23: 1fffe00018e57781 x22: dfff800000000000 x21: ffff80008aab71c4
x20: ffff0001b40136c0 x19: ffff0000c72bbc08 x18: 1fffe0001a817bb0
x17: ffff800125414000 x16: ffff80008032116c x15: 0000000000000001
x14: 1fffe0001ee9d610 x13: 0000000000000000 x12: 0000000000000003
x11: 0000000000000000 x10: 0000000000ff0100 x9 : 0000000000000000
x8 : 00000000005e5789 x7 : ffff80008aab61dc x6 : 0000000000000000
x5 : 0000000000000000 x4 : 0000000000000001 x3 : 0000000000000000
x2 : 0000000000000006 x1 : 0000000000000080 x0 : ffff800125414000
Call trace:
  __daif_local_irq_enable arch/arm64/include/asm/irqflags.h:27 [inline]
  arch_local_irq_enable arch/arm64/include/asm/irqflags.h:49 [inline]
  __local_bh_enable_ip+0x228/0x44c kernel/softirq.c:386
  __raw_spin_unlock_bh include/linux/spinlock_api_smp.h:167 [inline]
  _raw_spin_unlock_bh+0x3c/0x4c kernel/locking/spinlock.c:210
  spin_unlock_bh include/linux/spinlock.h:396 [inline]
  batadv_purge_orig_ref+0x114c/0x1228 net/batman-adv/originator.c:1287
  batadv_purge_orig+0x20/0x70 net/batman-adv/originator.c:1300
  process_one_work+0x694/0x1204 kernel/workqueue.c:2633
  process_scheduled_works kernel/workqueue.c:2706 [inline]
  worker_thread+0x938/0xef4 kernel/workqueue.c:2787
  kthread+0x288/0x310 kernel/kthread.c:388
  ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:860
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 0 Comm: swapper/1 Not tainted 6.8.0-rc7-syzkaller-g707081b61156 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024
pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
 pc : arch_local_irq_enable+0x8/0xc arch/arm64/include/asm/irqflags.h:51
 lr : default_idle_call+0xf8/0x128 kernel/sched/idle.c:103
sp : ffff800093a17d30
x29: ffff800093a17d30 x28: dfff800000000000 x27: 1ffff00012742fb4
x26: ffff80008ec9d000 x25: 0000000000000000 x24: 0000000000000002
x23: 1ffff00011d93a74 x22: ffff80008ec9d3a0 x21: 0000000000000000
x20: ffff0000c19dbc00 x19: ffff8000802d0fd8 x18: 1fffe00036804396
x17: ffff80008ec9d000 x16: ffff8000802d089c x15: 0000000000000001
x14: 1fffe00036805f10 x13: 0000000000000000 x12: 0000000000000003
x11: 0000000000000001 x10: 0000000000000003 x9 : 0000000000000000
x8 : 00000000000ce8d1 x7 : ffff8000804609e4 x6 : 0000000000000000
x5 : 0000000000000001 x4 : 0000000000000001 x3 : ffff80008ad6aac0
x2 : 0000000000000000 x1 : ffff80008aedea60 x0 : ffff800125436000
Call trace:
  __daif_local_irq_enable arch/arm64/include/asm/irqflags.h:27 [inline]
  arch_local_irq_enable+0x8/0xc arch/arm64/include/asm/irqflags.h:49
  cpuidle_idle_call kernel/sched/idle.c:170 [inline]
  do_idle+0x1f0/0x4e8 kernel/sched/idle.c:312
  cpu_startup_entry+0x5c/0x74 kernel/sched/idle.c:410
  secondary_start_kernel+0x198/0x1c0 arch/arm64/kernel/smp.c:272
  __secondary_switched+0xb8/0xbc arch/arm64/kernel/head.S:404

The Linux kernel CVE team has assigned CVE-2024-40981 to this issue.

openEuler评分:(评分和向量)
3.9
AV:L/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:L

受影响版本排查(受影响/不受影响):
1.openEuler-20.03-LTS-SP4:受影响
2.openEuler-22.03-LTS-SP1:受影响
3.openEuler-22.03-LTS-SP3:受影响
4.openEuler-22.03-LTS-SP4:不受影响
5.master(6.1.0):不受影响
6.openEuler-24.03-LTS:受影响
7.openEuler-24.03-LTS-Next:不受影响

修复是否涉及abi变化(是/否)：
1.openEuler-20.03-LTS-SP4:否
2.openEuler-22.03-LTS-SP1:否
3.openEuler-22.03-LTS-SP3:否
4.master(6.1.0):否
5.openEuler-24.03-LTS:否
6.openEuler-24.03-LTS-Next:否
7.openEuler-22.03-LTS-SP4:否

@ 经过 cve-manager 解析, 已分析的内容如下表所示:
| 状态  | 需分析 | 内容 |
|:--:|:--:|---------|
|已分析|1.影响性分析说明|In the Linux kernel, the following vulnerability has been resolved:batman-adv: bypass empty buckets in batadv_purge_orig_ref()Many syzbot reports are pointing to soft lockups inbatadv_purge_orig_ref() [1]Root cause is unknown, but we can avoid spending too muchtime there and perhaps get more interesting reports.[1]watchdog: BUG: soft lockup - CPU#0 stuck for 27s! [kworker/u4:6:621]Modules linked in:irq event stamp: 6182794 hardirqs last  enabled at (6182793): [&lt;ffff8000801dae10&gt;] __local_bh_enable_ip+0x224/0x44c kernel/softirq.c:386 hardirqs last disabled at (6182794): [&lt;ffff80008ad66a78&gt;] __el1_irq arch/arm64/kernel/entry-common.c:533 [inline] hardirqs last disabled at (6182794): [&lt;ffff80008ad66a78&gt;] el1_interrupt+0x24/0x68 arch/arm64/kernel/entry-common.c:551 softirqs last  enabled at (6182792): [&lt;ffff80008aab71c4&gt;] spin_unlock_bh include/linux/spinlock.h:396 [inline] softirqs last  enabled at (6182792): [&lt;ffff80008aab71c4&gt;] batadv_purge_orig_ref+0x114c/0x1228 net/batman-adv/originator.c:1287 softirqs last disabled at (6182790): [&lt;ffff80008aab61dc&gt;] spin_lock_bh include/linux/spinlock.h:356 [inline] softirqs last disabled at (6182790): [&lt;ffff80008aab61dc&gt;] batadv_purge_orig_ref+0x164/0x1228 net/batman-adv/originator.c:1271CPU: 0 PID: 621 Comm: kworker/u4:6 Not tainted 6.8.0-rc7-syzkaller-g707081b61156 #0Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024Workqueue: bat_events batadv_purge_origpstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : should_resched arch/arm64/include/asm/preempt.h:79 [inline] pc : __local_bh_enable_ip+0x228/0x44c kernel/softirq.c:388 lr : __local_bh_enable_ip+0x224/0x44c kernel/softirq.c:386sp : ffff800099007970x29: ffff800099007980 x28: 1fffe00018fce1bd x27: dfff800000000000x26: ffff0000d2620008 x25: ffff0000c7e70de8 x24: 0000000000000001x23: 1fffe00018e57781 x22: dfff800000000000 x21: ffff80008aab71c4x20: ffff0001b40136c0 x19: ffff0000c72bbc08 x18: 1fffe0001a817bb0x17: ffff800125414000 x16: ffff80008032116c x15: 0000000000000001x14: 1fffe0001ee9d610 x13: 0000000000000000 x12: 0000000000000003x11: 0000000000000000 x10: 0000000000ff0100 x9 : 0000000000000000x8 : 00000000005e5789 x7 : ffff80008aab61dc x6 : 0000000000000000x5 : 0000000000000000 x4 : 0000000000000001 x3 : 0000000000000000x2 : 0000000000000006 x1 : 0000000000000080 x0 : ffff800125414000Call trace:  __daif_local_irq_enable arch/arm64/include/asm/irqflags.h:27 [inline]  arch_local_irq_enable arch/arm64/include/asm/irqflags.h:49 [inline]  __local_bh_enable_ip+0x228/0x44c kernel/softirq.c:386  __raw_spin_unlock_bh include/linux/spinlock_api_smp.h:167 [inline]  _raw_spin_unlock_bh+0x3c/0x4c kernel/locking/spinlock.c:210  spin_unlock_bh include/linux/spinlock.h:396 [inline]  batadv_purge_orig_ref+0x114c/0x1228 net/batman-adv/originator.c:1287  batadv_purge_orig+0x20/0x70 net/batman-adv/originator.c:1300  process_one_work+0x694/0x1204 kernel/workqueue.c:2633  process_scheduled_works kernel/workqueue.c:2706 [inline]  worker_thread+0x938/0xef4 kernel/workqueue.c:2787  kthread+0x288/0x310 kernel/kthread.c:388  ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:860Sending NMI from CPU 0 to CPUs 1:NMI backtrace for cpu 1CPU: 1 PID: 0 Comm: swapper/1 Not tainted 6.8.0-rc7-syzkaller-g707081b61156 #0Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : arch_local_irq_enable+0x8/0xc arch/arm64/include/asm/irqflags.h:51 lr : default_idle_call+0xf8/0x128 kernel/sched/idle.c:103sp : ffff800093a17d30x29: ffff800093a17d30 x28: dfff800000000000 x27: 1ffff00012742fb4x26: ffff80008ec9d000 x25: 0000000000000000 x24: 0000000000000002x23: 1ffff00011d93a74 x22: ffff80008ec9d3a0 x21: 0000000000000000x20: ffff0000c19dbc00 x19: ffff8000802d0fd8 x18: 1fffe00036804396x17: ffff80008ec9d000 x16: ffff8000802d089c x15: 0000000000000001x14: 1fffe00036805f10 x13: 0000000000000000 x12: 0000000000000003x11: 0000000000000001 x10: 0000000000000003 x9 : 0000000000000000x8 : 00000000000ce8d1 x7 : ffff8000804609e4 x6 : 0000000000000000x5 : 0000000000000001 x4 : 0000000000000001 x3 : ffff80008ad6aac0x2 : 0000000000000000 x1 : ffff80008aedea60 x0 : ffff800125436000Call trace:  __daif_local_irq_enable arch/arm64/include/asm/irqflags.h:27 [inline]  arch_local_irq_enable+0x8/0xc arch/arm64/include/asm/irqflags.h:49  cpuidle_idle_call kernel/sched/idle.c:170 [inline]  do_idle+0x1f0/0x4e8 kernel/sched/idle.c:312  cpu_startup_entry+0x5c/0x74 kernel/sched/idle.c:410  secondary_start_kernel+0x198/0x1c0 arch/arm64/kernel/smp.c:272  __secondary_switched+0xb8/0xbc arch/arm64/kernel/head.S:404The Linux kernel CVE team has assigned CVE-2024-40981 to this issue.|
|已分析|2.openEulerScore|3.9|
|已分析|3.openEulerVector|AV:L/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:L|
|已分析|4.受影响版本排查|openEuler-20.03-LTS-SP4:受影响,openEuler-22.03-LTS-SP1:受影响,openEuler-22.03-LTS-SP3:受影响,openEuler-24.03-LTS:受影响,openEuler-22.03-LTS-SP4:不受影响,master:不受影响,openEuler-24.03-LTS-Next:不受影响|
|已分析|5.修复是否涉及abi变化|openEuler-20.03-LTS-SP4:否,openEuler-22.03-LTS-SP1:否,openEuler-22.03-LTS-SP3:否,master:否,openEuler-24.03-LTS:否,openEuler-24.03-LTS-Next:否,openEuler-22.03-LTS-SP4:否|

**请确认分析内容的准确性, 确认无误后, 您可以进行后续步骤, 否则您可以继续分析.**

@ 经过 cve-manager 解析, 已分析的内容如下表所示:
| 状态  | 需分析 | 内容 |
|:--:|:--:|---------|
|已分析|1.影响性分析说明|In the Linux kernel, the following vulnerability has been resolved:batman-adv: bypass empty buckets in batadv_purge_orig_ref()Many syzbot reports are pointing to soft lockups inbatadv_purge_orig_ref() [1]Root cause is unknown, but we can avoid spending too muchtime there and perhaps get more interesting reports.[1]watchdog: BUG: soft lockup - CPU#0 stuck for 27s! [kworker/u4:6:621]Modules linked in:irq event stamp: 6182794 hardirqs last  enabled at (6182793): [&lt;ffff8000801dae10&gt;] __local_bh_enable_ip+0x224/0x44c kernel/softirq.c:386 hardirqs last disabled at (6182794): [&lt;ffff80008ad66a78&gt;] __el1_irq arch/arm64/kernel/entry-common.c:533 [inline] hardirqs last disabled at (6182794): [&lt;ffff80008ad66a78&gt;] el1_interrupt+0x24/0x68 arch/arm64/kernel/entry-common.c:551 softirqs last  enabled at (6182792): [&lt;ffff80008aab71c4&gt;] spin_unlock_bh include/linux/spinlock.h:396 [inline] softirqs last  enabled at (6182792): [&lt;ffff80008aab71c4&gt;] batadv_purge_orig_ref+0x114c/0x1228 net/batman-adv/originator.c:1287 softirqs last disabled at (6182790): [&lt;ffff80008aab61dc&gt;] spin_lock_bh include/linux/spinlock.h:356 [inline] softirqs last disabled at (6182790): [&lt;ffff80008aab61dc&gt;] batadv_purge_orig_ref+0x164/0x1228 net/batman-adv/originator.c:1271CPU: 0 PID: 621 Comm: kworker/u4:6 Not tainted 6.8.0-rc7-syzkaller-g707081b61156 #0Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024Workqueue: bat_events batadv_purge_origpstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : should_resched arch/arm64/include/asm/preempt.h:79 [inline] pc : __local_bh_enable_ip+0x228/0x44c kernel/softirq.c:388 lr : __local_bh_enable_ip+0x224/0x44c kernel/softirq.c:386sp : ffff800099007970x29: ffff800099007980 x28: 1fffe00018fce1bd x27: dfff800000000000x26: ffff0000d2620008 x25: ffff0000c7e70de8 x24: 0000000000000001x23: 1fffe00018e57781 x22: dfff800000000000 x21: ffff80008aab71c4x20: ffff0001b40136c0 x19: ffff0000c72bbc08 x18: 1fffe0001a817bb0x17: ffff800125414000 x16: ffff80008032116c x15: 0000000000000001x14: 1fffe0001ee9d610 x13: 0000000000000000 x12: 0000000000000003x11: 0000000000000000 x10: 0000000000ff0100 x9 : 0000000000000000x8 : 00000000005e5789 x7 : ffff80008aab61dc x6 : 0000000000000000x5 : 0000000000000000 x4 : 0000000000000001 x3 : 0000000000000000x2 : 0000000000000006 x1 : 0000000000000080 x0 : ffff800125414000Call trace:  __daif_local_irq_enable arch/arm64/include/asm/irqflags.h:27 [inline]  arch_local_irq_enable arch/arm64/include/asm/irqflags.h:49 [inline]  __local_bh_enable_ip+0x228/0x44c kernel/softirq.c:386  __raw_spin_unlock_bh include/linux/spinlock_api_smp.h:167 [inline]  _raw_spin_unlock_bh+0x3c/0x4c kernel/locking/spinlock.c:210  spin_unlock_bh include/linux/spinlock.h:396 [inline]  batadv_purge_orig_ref+0x114c/0x1228 net/batman-adv/originator.c:1287  batadv_purge_orig+0x20/0x70 net/batman-adv/originator.c:1300  process_one_work+0x694/0x1204 kernel/workqueue.c:2633  process_scheduled_works kernel/workqueue.c:2706 [inline]  worker_thread+0x938/0xef4 kernel/workqueue.c:2787  kthread+0x288/0x310 kernel/kthread.c:388  ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:860Sending NMI from CPU 0 to CPUs 1:NMI backtrace for cpu 1CPU: 1 PID: 0 Comm: swapper/1 Not tainted 6.8.0-rc7-syzkaller-g707081b61156 #0Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : arch_local_irq_enable+0x8/0xc arch/arm64/include/asm/irqflags.h:51 lr : default_idle_call+0xf8/0x128 kernel/sched/idle.c:103sp : ffff800093a17d30x29: ffff800093a17d30 x28: dfff800000000000 x27: 1ffff00012742fb4x26: ffff80008ec9d000 x25: 0000000000000000 x24: 0000000000000002x23: 1ffff00011d93a74 x22: ffff80008ec9d3a0 x21: 0000000000000000x20: ffff0000c19dbc00 x19: ffff8000802d0fd8 x18: 1fffe00036804396x17: ffff80008ec9d000 x16: ffff8000802d089c x15: 0000000000000001x14: 1fffe00036805f10 x13: 0000000000000000 x12: 0000000000000003x11: 0000000000000001 x10: 0000000000000003 x9 : 0000000000000000x8 : 00000000000ce8d1 x7 : ffff8000804609e4 x6 : 0000000000000000x5 : 0000000000000001 x4 : 0000000000000001 x3 : ffff80008ad6aac0x2 : 0000000000000000 x1 : ffff80008aedea60 x0 : ffff800125436000Call trace:  __daif_local_irq_enable arch/arm64/include/asm/irqflags.h:27 [inline]  arch_local_irq_enable+0x8/0xc arch/arm64/include/asm/irqflags.h:49  cpuidle_idle_call kernel/sched/idle.c:170 [inline]  do_idle+0x1f0/0x4e8 kernel/sched/idle.c:312  cpu_startup_entry+0x5c/0x74 kernel/sched/idle.c:410  secondary_start_kernel+0x198/0x1c0 arch/arm64/kernel/smp.c:272  __secondary_switched+0xb8/0xbc arch/arm64/kernel/head.S:404The Linux kernel CVE team has assigned CVE-2024-40981 to this issue.|
|已分析|2.openEulerScore|3.9|
|已分析|3.openEulerVector|AV:L/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:L|
|已分析|4.受影响版本排查|openEuler-20.03-LTS-SP4:受影响,openEuler-22.03-LTS-SP1:受影响,openEuler-22.03-LTS-SP3:受影响,openEuler-24.03-LTS:受影响,openEuler-22.03-LTS-SP4:不受影响,master:不受影响,openEuler-24.03-LTS-Next:不受影响|
|已分析|5.修复是否涉及abi变化|openEuler-20.03-LTS-SP4:否,openEuler-22.03-LTS-SP1:否,openEuler-22.03-LTS-SP3:否,master:否,openEuler-24.03-LTS:否,openEuler-24.03-LTS-Next:否,openEuler-22.03-LTS-SP4:否|

**请确认分析内容的准确性, 确认无误后, 您可以进行后续步骤, 否则您可以继续分析.**

CVE-2024-40981

影响性分析说明：
In the Linux kernel, the following vulnerability has been resolved:

batman-adv: bypass empty buckets in batadv_purge_orig_ref()

Many syzbot reports are pointing to soft lockups in
batadv_purge_orig_ref() [1]

Root cause is unknown, but we can avoid spending too much
time there and perhaps get more interesting reports.

[1]

watchdog: BUG: soft lockup - CPU#0 stuck for 27s! [kworker/u4:6:621]
Modules linked in:
irq event stamp: 6182794
 hardirqs last  enabled at (6182793): [&lt;ffff8000801dae10&gt;] __local_bh_enable_ip+0x224/0x44c kernel/softirq.c:386
 hardirqs last disabled at (6182794): [&lt;ffff80008ad66a78&gt;] __el1_irq arch/arm64/kernel/entry-common.c:533 [inline]
 hardirqs last disabled at (6182794): [&lt;ffff80008ad66a78&gt;] el1_interrupt+0x24/0x68 arch/arm64/kernel/entry-common.c:551
 softirqs last  enabled at (6182792): [&lt;ffff80008aab71c4&gt;] spin_unlock_bh include/linux/spinlock.h:396 [inline]
 softirqs last  enabled at (6182792): [&lt;ffff80008aab71c4&gt;] batadv_purge_orig_ref+0x114c/0x1228 net/batman-adv/originator.c:1287
 softirqs last disabled at (6182790): [&lt;ffff80008aab61dc&gt;] spin_lock_bh include/linux/spinlock.h:356 [inline]
 softirqs last disabled at (6182790): [&lt;ffff80008aab61dc&gt;] batadv_purge_orig_ref+0x164/0x1228 net/batman-adv/originator.c:1271
CPU: 0 PID: 621 Comm: kworker/u4:6 Not tainted 6.8.0-rc7-syzkaller-g707081b61156 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024
Workqueue: bat_events batadv_purge_orig
pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
 pc : should_resched arch/arm64/include/asm/preempt.h:79 [inline]
 pc : __local_bh_enable_ip+0x228/0x44c kernel/softirq.c:388
 lr : __local_bh_enable_ip+0x224/0x44c kernel/softirq.c:386
sp : ffff800099007970
x29: ffff800099007980 x28: 1fffe00018fce1bd x27: dfff800000000000
x26: ffff0000d2620008 x25: ffff0000c7e70de8 x24: 0000000000000001
x23: 1fffe00018e57781 x22: dfff800000000000 x21: ffff80008aab71c4
x20: ffff0001b40136c0 x19: ffff0000c72bbc08 x18: 1fffe0001a817bb0
x17: ffff800125414000 x16: ffff80008032116c x15: 0000000000000001
x14: 1fffe0001ee9d610 x13: 0000000000000000 x12: 0000000000000003
x11: 0000000000000000 x10: 0000000000ff0100 x9 : 0000000000000000
x8 : 00000000005e5789 x7 : ffff80008aab61dc x6 : 0000000000000000
x5 : 0000000000000000 x4 : 0000000000000001 x3 : 0000000000000000
x2 : 0000000000000006 x1 : 0000000000000080 x0 : ffff800125414000
Call trace:
  __daif_local_irq_enable arch/arm64/include/asm/irqflags.h:27 [inline]
  arch_local_irq_enable arch/arm64/include/asm/irqflags.h:49 [inline]
  __local_bh_enable_ip+0x228/0x44c kernel/softirq.c:386
  __raw_spin_unlock_bh include/linux/spinlock_api_smp.h:167 [inline]
  _raw_spin_unlock_bh+0x3c/0x4c kernel/locking/spinlock.c:210
  spin_unlock_bh include/linux/spinlock.h:396 [inline]
  batadv_purge_orig_ref+0x114c/0x1228 net/batman-adv/originator.c:1287
  batadv_purge_orig+0x20/0x70 net/batman-adv/originator.c:1300
  process_one_work+0x694/0x1204 kernel/workqueue.c:2633
  process_scheduled_works kernel/workqueue.c:2706 [inline]
  worker_thread+0x938/0xef4 kernel/workqueue.c:2787
  kthread+0x288/0x310 kernel/kthread.c:388
  ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:860
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 0 Comm: swapper/1 Not tainted 6.8.0-rc7-syzkaller-g707081b61156 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024
pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
 pc : arch_local_irq_enable+0x8/0xc arch/arm64/include/asm/irqflags.h:51
 lr : default_idle_call+0xf8/0x128 kernel/sched/idle.c:103
sp : ffff800093a17d30
x29: ffff800093a17d30 x28: dfff800000000000 x27: 1ffff00012742fb4
x26: ffff80008ec9d000 x25: 0000000000000000 x24: 0000000000000002
x23: 1ffff00011d93a74 x22: ffff80008ec9d3a0 x21: 0000000000000000
x20: ffff0000c19dbc00 x19: ffff8000802d0fd8 x18: 1fffe00036804396
x17: ffff80008ec9d000 x16: ffff8000802d089c x15: 0000000000000001
x14: 1fffe00036805f10 x13: 0000000000000000 x12: 0000000000000003
x11: 0000000000000001 x10: 0000000000000003 x9 : 0000000000000000
x8 : 00000000000ce8d1 x7 : ffff8000804609e4 x6 : 0000000000000000
x5 : 0000000000000001 x4 : 0000000000000001 x3 : ffff80008ad6aac0
x2 : 0000000000000000 x1 : ffff80008aedea60 x0 : ffff800125436000
Call trace:
  __daif_local_irq_enable arch/arm64/include/asm/irqflags.h:27 [inline]
  arch_local_irq_enable+0x8/0xc arch/arm64/include/asm/irqflags.h:49
  cpuidle_idle_call kernel/sched/idle.c:170 [inline]
  do_idle+0x1f0/0x4e8 kernel/sched/idle.c:312
  cpu_startup_entry+0x5c/0x74 kernel/sched/idle.c:410
  secondary_start_kernel+0x198/0x1c0 arch/arm64/kernel/smp.c:272
  __secondary_switched+0xb8/0xbc arch/arm64/kernel/head.S:404

The Linux kernel CVE team has assigned CVE-2024-40981 to this issue.

openEuler评分:(评分和向量)
3.9
AV:L/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:L

受影响版本排查(受影响/不受影响):
1.openEuler-20.03-LTS-SP4:受影响
2.openEuler-22.03-LTS-SP1:受影响
3.openEuler-22.03-LTS-SP3:受影响
4.openEuler-22.03-LTS-SP4:不受影响
5.master(6.1.0):不受影响
6.openEuler-24.03-LTS:受影响
7.openEuler-24.03-LTS-Next:不受影响

修复是否涉及abi变化(是/否)：
1.openEuler-20.03-LTS-SP4:否
2.openEuler-22.03-LTS-SP1:否
3.openEuler-22.03-LTS-SP3:否
4.master(6.1.0):否
5.openEuler-24.03-LTS:否
6.openEuler-24.03-LTS-Next:否
7.openEuler-22.03-LTS-SP4:否

@ 经过 cve-manager 解析, 已分析的内容如下表所示:
| 状态  | 需分析 | 内容 |
|:--:|:--:|---------|
|已分析|1.影响性分析说明|In the Linux kernel, the following vulnerability has been resolved:batman-adv: bypass empty buckets in batadv_purge_orig_ref()Many syzbot reports are pointing to soft lockups inbatadv_purge_orig_ref() [1]Root cause is unknown, but we can avoid spending too muchtime there and perhaps get more interesting reports.[1]watchdog: BUG: soft lockup - CPU#0 stuck for 27s! [kworker/u4:6:621]Modules linked in:irq event stamp: 6182794 hardirqs last  enabled at (6182793): [&lt;ffff8000801dae10&gt;] __local_bh_enable_ip+0x224/0x44c kernel/softirq.c:386 hardirqs last disabled at (6182794): [&lt;ffff80008ad66a78&gt;] __el1_irq arch/arm64/kernel/entry-common.c:533 [inline] hardirqs last disabled at (6182794): [&lt;ffff80008ad66a78&gt;] el1_interrupt+0x24/0x68 arch/arm64/kernel/entry-common.c:551 softirqs last  enabled at (6182792): [&lt;ffff80008aab71c4&gt;] spin_unlock_bh include/linux/spinlock.h:396 [inline] softirqs last  enabled at (6182792): [&lt;ffff80008aab71c4&gt;] batadv_purge_orig_ref+0x114c/0x1228 net/batman-adv/originator.c:1287 softirqs last disabled at (6182790): [&lt;ffff80008aab61dc&gt;] spin_lock_bh include/linux/spinlock.h:356 [inline] softirqs last disabled at (6182790): [&lt;ffff80008aab61dc&gt;] batadv_purge_orig_ref+0x164/0x1228 net/batman-adv/originator.c:1271CPU: 0 PID: 621 Comm: kworker/u4:6 Not tainted 6.8.0-rc7-syzkaller-g707081b61156 #0Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024Workqueue: bat_events batadv_purge_origpstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : should_resched arch/arm64/include/asm/preempt.h:79 [inline] pc : __local_bh_enable_ip+0x228/0x44c kernel/softirq.c:388 lr : __local_bh_enable_ip+0x224/0x44c kernel/softirq.c:386sp : ffff800099007970x29: ffff800099007980 x28: 1fffe00018fce1bd x27: dfff800000000000x26: ffff0000d2620008 x25: ffff0000c7e70de8 x24: 0000000000000001x23: 1fffe00018e57781 x22: dfff800000000000 x21: ffff80008aab71c4x20: ffff0001b40136c0 x19: ffff0000c72bbc08 x18: 1fffe0001a817bb0x17: ffff800125414000 x16: ffff80008032116c x15: 0000000000000001x14: 1fffe0001ee9d610 x13: 0000000000000000 x12: 0000000000000003x11: 0000000000000000 x10: 0000000000ff0100 x9 : 0000000000000000x8 : 00000000005e5789 x7 : ffff80008aab61dc x6 : 0000000000000000x5 : 0000000000000000 x4 : 0000000000000001 x3 : 0000000000000000x2 : 0000000000000006 x1 : 0000000000000080 x0 : ffff800125414000Call trace:  __daif_local_irq_enable arch/arm64/include/asm/irqflags.h:27 [inline]  arch_local_irq_enable arch/arm64/include/asm/irqflags.h:49 [inline]  __local_bh_enable_ip+0x228/0x44c kernel/softirq.c:386  __raw_spin_unlock_bh include/linux/spinlock_api_smp.h:167 [inline]  _raw_spin_unlock_bh+0x3c/0x4c kernel/locking/spinlock.c:210  spin_unlock_bh include/linux/spinlock.h:396 [inline]  batadv_purge_orig_ref+0x114c/0x1228 net/batman-adv/originator.c:1287  batadv_purge_orig+0x20/0x70 net/batman-adv/originator.c:1300  process_one_work+0x694/0x1204 kernel/workqueue.c:2633  process_scheduled_works kernel/workqueue.c:2706 [inline]  worker_thread+0x938/0xef4 kernel/workqueue.c:2787  kthread+0x288/0x310 kernel/kthread.c:388  ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:860Sending NMI from CPU 0 to CPUs 1:NMI backtrace for cpu 1CPU: 1 PID: 0 Comm: swapper/1 Not tainted 6.8.0-rc7-syzkaller-g707081b61156 #0Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : arch_local_irq_enable+0x8/0xc arch/arm64/include/asm/irqflags.h:51 lr : default_idle_call+0xf8/0x128 kernel/sched/idle.c:103sp : ffff800093a17d30x29: ffff800093a17d30 x28: dfff800000000000 x27: 1ffff00012742fb4x26: ffff80008ec9d000 x25: 0000000000000000 x24: 0000000000000002x23: 1ffff00011d93a74 x22: ffff80008ec9d3a0 x21: 0000000000000000x20: ffff0000c19dbc00 x19: ffff8000802d0fd8 x18: 1fffe00036804396x17: ffff80008ec9d000 x16: ffff8000802d089c x15: 0000000000000001x14: 1fffe00036805f10 x13: 0000000000000000 x12: 0000000000000003x11: 0000000000000001 x10: 0000000000000003 x9 : 0000000000000000x8 : 00000000000ce8d1 x7 : ffff8000804609e4 x6 : 0000000000000000x5 : 0000000000000001 x4 : 0000000000000001 x3 : ffff80008ad6aac0x2 : 0000000000000000 x1 : ffff80008aedea60 x0 : ffff800125436000Call trace:  __daif_local_irq_enable arch/arm64/include/asm/irqflags.h:27 [inline]  arch_local_irq_enable+0x8/0xc arch/arm64/include/asm/irqflags.h:49  cpuidle_idle_call kernel/sched/idle.c:170 [inline]  do_idle+0x1f0/0x4e8 kernel/sched/idle.c:312  cpu_startup_entry+0x5c/0x74 kernel/sched/idle.c:410  secondary_start_kernel+0x198/0x1c0 arch/arm64/kernel/smp.c:272  __secondary_switched+0xb8/0xbc arch/arm64/kernel/head.S:404The Linux kernel CVE team has assigned CVE-2024-40981 to this issue.|
|已分析|2.openEulerScore|3.9|
|已分析|3.openEulerVector|AV:L/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:L|
|已分析|4.受影响版本排查|openEuler-20.03-LTS-SP4:受影响,openEuler-22.03-LTS-SP1:受影响,openEuler-22.03-LTS-SP3:受影响,openEuler-24.03-LTS:受影响,openEuler-22.03-LTS-SP4:不受影响,master:不受影响,openEuler-24.03-LTS-Next:不受影响|
|已分析|5.修复是否涉及abi变化|openEuler-20.03-LTS-SP4:否,openEuler-22.03-LTS-SP1:否,openEuler-22.03-LTS-SP3:否,master:否,openEuler-24.03-LTS:否,openEuler-24.03-LTS-Next:否,openEuler-22.03-LTS-SP4:否|

**请确认分析内容的准确性, 确认无误后, 您可以进行后续步骤, 否则您可以继续分析.**

CVE-2024-40981

影响性分析说明：
In the Linux kernel, the following vulnerability has been resolved:

batman-adv: bypass empty buckets in batadv_purge_orig_ref()

Many syzbot reports are pointing to soft lockups in
batadv_purge_orig_ref() [1]

Root cause is unknown, but we can avoid spending too much
time there and perhaps get more interesting reports.

[1]

watchdog: BUG: soft lockup - CPU#0 stuck for 27s! [kworker/u4:6:621]
Modules linked in:
irq event stamp: 6182794
 hardirqs last  enabled at (6182793): [&lt;ffff8000801dae10&gt;] __local_bh_enable_ip+0x224/0x44c kernel/softirq.c:386
 hardirqs last disabled at (6182794): [&lt;ffff80008ad66a78&gt;] __el1_irq arch/arm64/kernel/entry-common.c:533 [inline]
 hardirqs last disabled at (6182794): [&lt;ffff80008ad66a78&gt;] el1_interrupt+0x24/0x68 arch/arm64/kernel/entry-common.c:551
 softirqs last  enabled at (6182792): [&lt;ffff80008aab71c4&gt;] spin_unlock_bh include/linux/spinlock.h:396 [inline]
 softirqs last  enabled at (6182792): [&lt;ffff80008aab71c4&gt;] batadv_purge_orig_ref+0x114c/0x1228 net/batman-adv/originator.c:1287
 softirqs last disabled at (6182790): [&lt;ffff80008aab61dc&gt;] spin_lock_bh include/linux/spinlock.h:356 [inline]
 softirqs last disabled at (6182790): [&lt;ffff80008aab61dc&gt;] batadv_purge_orig_ref+0x164/0x1228 net/batman-adv/originator.c:1271
CPU: 0 PID: 621 Comm: kworker/u4:6 Not tainted 6.8.0-rc7-syzkaller-g707081b61156 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024
Workqueue: bat_events batadv_purge_orig
pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
 pc : should_resched arch/arm64/include/asm/preempt.h:79 [inline]
 pc : __local_bh_enable_ip+0x228/0x44c kernel/softirq.c:388
 lr : __local_bh_enable_ip+0x224/0x44c kernel/softirq.c:386
sp : ffff800099007970
x29: ffff800099007980 x28: 1fffe00018fce1bd x27: dfff800000000000
x26: ffff0000d2620008 x25: ffff0000c7e70de8 x24: 0000000000000001
x23: 1fffe00018e57781 x22: dfff800000000000 x21: ffff80008aab71c4
x20: ffff0001b40136c0 x19: ffff0000c72bbc08 x18: 1fffe0001a817bb0
x17: ffff800125414000 x16: ffff80008032116c x15: 0000000000000001
x14: 1fffe0001ee9d610 x13: 0000000000000000 x12: 0000000000000003
x11: 0000000000000000 x10: 0000000000ff0100 x9 : 0000000000000000
x8 : 00000000005e5789 x7 : ffff80008aab61dc x6 : 0000000000000000
x5 : 0000000000000000 x4 : 0000000000000001 x3 : 0000000000000000
x2 : 0000000000000006 x1 : 0000000000000080 x0 : ffff800125414000
Call trace:
  __daif_local_irq_enable arch/arm64/include/asm/irqflags.h:27 [inline]
  arch_local_irq_enable arch/arm64/include/asm/irqflags.h:49 [inline]
  __local_bh_enable_ip+0x228/0x44c kernel/softirq.c:386
  __raw_spin_unlock_bh include/linux/spinlock_api_smp.h:167 [inline]
  _raw_spin_unlock_bh+0x3c/0x4c kernel/locking/spinlock.c:210
  spin_unlock_bh include/linux/spinlock.h:396 [inline]
  batadv_purge_orig_ref+0x114c/0x1228 net/batman-adv/originator.c:1287
  batadv_purge_orig+0x20/0x70 net/batman-adv/originator.c:1300
  process_one_work+0x694/0x1204 kernel/workqueue.c:2633
  process_scheduled_works kernel/workqueue.c:2706 [inline]
  worker_thread+0x938/0xef4 kernel/workqueue.c:2787
  kthread+0x288/0x310 kernel/kthread.c:388
  ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:860
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 0 Comm: swapper/1 Not tainted 6.8.0-rc7-syzkaller-g707081b61156 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024
pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
 pc : arch_local_irq_enable+0x8/0xc arch/arm64/include/asm/irqflags.h:51
 lr : default_idle_call+0xf8/0x128 kernel/sched/idle.c:103
sp : ffff800093a17d30
x29: ffff800093a17d30 x28: dfff800000000000 x27: 1ffff00012742fb4
x26: ffff80008ec9d000 x25: 0000000000000000 x24: 0000000000000002
x23: 1ffff00011d93a74 x22: ffff80008ec9d3a0 x21: 0000000000000000
x20: ffff0000c19dbc00 x19: ffff8000802d0fd8 x18: 1fffe00036804396
x17: ffff80008ec9d000 x16: ffff8000802d089c x15: 0000000000000001
x14: 1fffe00036805f10 x13: 0000000000000000 x12: 0000000000000003
x11: 0000000000000001 x10: 0000000000000003 x9 : 0000000000000000
x8 : 00000000000ce8d1 x7 : ffff8000804609e4 x6 : 0000000000000000
x5 : 0000000000000001 x4 : 0000000000000001 x3 : ffff80008ad6aac0
x2 : 0000000000000000 x1 : ffff80008aedea60 x0 : ffff800125436000
Call trace:
  __daif_local_irq_enable arch/arm64/include/asm/irqflags.h:27 [inline]
  arch_local_irq_enable+0x8/0xc arch/arm64/include/asm/irqflags.h:49
  cpuidle_idle_call kernel/sched/idle.c:170 [inline]
  do_idle+0x1f0/0x4e8 kernel/sched/idle.c:312
  cpu_startup_entry+0x5c/0x74 kernel/sched/idle.c:410
  secondary_start_kernel+0x198/0x1c0 arch/arm64/kernel/smp.c:272
  __secondary_switched+0xb8/0xbc arch/arm64/kernel/head.S:404

The Linux kernel CVE team has assigned CVE-2024-40981 to this issue.

openEuler评分:(评分和向量)
3.9
AV:L/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:L

受影响版本排查(受影响/不受影响):
1.openEuler-20.03-LTS-SP4:受影响
2.openEuler-22.03-LTS-SP1:受影响
3.openEuler-22.03-LTS-SP3:受影响
4.openEuler-22.03-LTS-SP4:不受影响
5.master(6.1.0):不受影响
6.openEuler-24.03-LTS:受影响
7.openEuler-24.03-LTS-Next:不受影响

修复是否涉及abi变化(是/否)：
1.openEuler-20.03-LTS-SP4:否
2.openEuler-22.03-LTS-SP1:否
3.openEuler-22.03-LTS-SP3:否
4.master(6.1.0):否
5.openEuler-24.03-LTS:否
6.openEuler-24.03-LTS-Next:否
7.openEuler-22.03-LTS-SP4:否

@ 经过 cve-manager 解析, 已分析的内容如下表所示:
| 状态  | 需分析 | 内容 |
|:--:|:--:|---------|
|已分析|1.影响性分析说明|In the Linux kernel, the following vulnerability has been resolved:batman-adv: bypass empty buckets in batadv_purge_orig_ref()Many syzbot reports are pointing to soft lockups inbatadv_purge_orig_ref() [1]Root cause is unknown, but we can avoid spending too muchtime there and perhaps get more interesting reports.[1]watchdog: BUG: soft lockup - CPU#0 stuck for 27s! [kworker/u4:6:621]Modules linked in:irq event stamp: 6182794 hardirqs last  enabled at (6182793): [&lt;ffff8000801dae10&gt;] __local_bh_enable_ip+0x224/0x44c kernel/softirq.c:386 hardirqs last disabled at (6182794): [&lt;ffff80008ad66a78&gt;] __el1_irq arch/arm64/kernel/entry-common.c:533 [inline] hardirqs last disabled at (6182794): [&lt;ffff80008ad66a78&gt;] el1_interrupt+0x24/0x68 arch/arm64/kernel/entry-common.c:551 softirqs last  enabled at (6182792): [&lt;ffff80008aab71c4&gt;] spin_unlock_bh include/linux/spinlock.h:396 [inline] softirqs last  enabled at (6182792): [&lt;ffff80008aab71c4&gt;] batadv_purge_orig_ref+0x114c/0x1228 net/batman-adv/originator.c:1287 softirqs last disabled at (6182790): [&lt;ffff80008aab61dc&gt;] spin_lock_bh include/linux/spinlock.h:356 [inline] softirqs last disabled at (6182790): [&lt;ffff80008aab61dc&gt;] batadv_purge_orig_ref+0x164/0x1228 net/batman-adv/originator.c:1271CPU: 0 PID: 621 Comm: kworker/u4:6 Not tainted 6.8.0-rc7-syzkaller-g707081b61156 #0Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024Workqueue: bat_events batadv_purge_origpstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : should_resched arch/arm64/include/asm/preempt.h:79 [inline] pc : __local_bh_enable_ip+0x228/0x44c kernel/softirq.c:388 lr : __local_bh_enable_ip+0x224/0x44c kernel/softirq.c:386sp : ffff800099007970x29: ffff800099007980 x28: 1fffe00018fce1bd x27: dfff800000000000x26: ffff0000d2620008 x25: ffff0000c7e70de8 x24: 0000000000000001x23: 1fffe00018e57781 x22: dfff800000000000 x21: ffff80008aab71c4x20: ffff0001b40136c0 x19: ffff0000c72bbc08 x18: 1fffe0001a817bb0x17: ffff800125414000 x16: ffff80008032116c x15: 0000000000000001x14: 1fffe0001ee9d610 x13: 0000000000000000 x12: 0000000000000003x11: 0000000000000000 x10: 0000000000ff0100 x9 : 0000000000000000x8 : 00000000005e5789 x7 : ffff80008aab61dc x6 : 0000000000000000x5 : 0000000000000000 x4 : 0000000000000001 x3 : 0000000000000000x2 : 0000000000000006 x1 : 0000000000000080 x0 : ffff800125414000Call trace:  __daif_local_irq_enable arch/arm64/include/asm/irqflags.h:27 [inline]  arch_local_irq_enable arch/arm64/include/asm/irqflags.h:49 [inline]  __local_bh_enable_ip+0x228/0x44c kernel/softirq.c:386  __raw_spin_unlock_bh include/linux/spinlock_api_smp.h:167 [inline]  _raw_spin_unlock_bh+0x3c/0x4c kernel/locking/spinlock.c:210  spin_unlock_bh include/linux/spinlock.h:396 [inline]  batadv_purge_orig_ref+0x114c/0x1228 net/batman-adv/originator.c:1287  batadv_purge_orig+0x20/0x70 net/batman-adv/originator.c:1300  process_one_work+0x694/0x1204 kernel/workqueue.c:2633  process_scheduled_works kernel/workqueue.c:2706 [inline]  worker_thread+0x938/0xef4 kernel/workqueue.c:2787  kthread+0x288/0x310 kernel/kthread.c:388  ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:860Sending NMI from CPU 0 to CPUs 1:NMI backtrace for cpu 1CPU: 1 PID: 0 Comm: swapper/1 Not tainted 6.8.0-rc7-syzkaller-g707081b61156 #0Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : arch_local_irq_enable+0x8/0xc arch/arm64/include/asm/irqflags.h:51 lr : default_idle_call+0xf8/0x128 kernel/sched/idle.c:103sp : ffff800093a17d30x29: ffff800093a17d30 x28: dfff800000000000 x27: 1ffff00012742fb4x26: ffff80008ec9d000 x25: 0000000000000000 x24: 0000000000000002x23: 1ffff00011d93a74 x22: ffff80008ec9d3a0 x21: 0000000000000000x20: ffff0000c19dbc00 x19: ffff8000802d0fd8 x18: 1fffe00036804396x17: ffff80008ec9d000 x16: ffff8000802d089c x15: 0000000000000001x14: 1fffe00036805f10 x13: 0000000000000000 x12: 0000000000000003x11: 0000000000000001 x10: 0000000000000003 x9 : 0000000000000000x8 : 00000000000ce8d1 x7 : ffff8000804609e4 x6 : 0000000000000000x5 : 0000000000000001 x4 : 0000000000000001 x3 : ffff80008ad6aac0x2 : 0000000000000000 x1 : ffff80008aedea60 x0 : ffff800125436000Call trace:  __daif_local_irq_enable arch/arm64/include/asm/irqflags.h:27 [inline]  arch_local_irq_enable+0x8/0xc arch/arm64/include/asm/irqflags.h:49  cpuidle_idle_call kernel/sched/idle.c:170 [inline]  do_idle+0x1f0/0x4e8 kernel/sched/idle.c:312  cpu_startup_entry+0x5c/0x74 kernel/sched/idle.c:410  secondary_start_kernel+0x198/0x1c0 arch/arm64/kernel/smp.c:272  __secondary_switched+0xb8/0xbc arch/arm64/kernel/head.S:404The Linux kernel CVE team has assigned CVE-2024-40981 to this issue.|
|已分析|2.openEulerScore|3.9|
|已分析|3.openEulerVector|AV:L/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:L|
|已分析|4.受影响版本排查|openEuler-20.03-LTS-SP4:受影响,openEuler-22.03-LTS-SP1:受影响,openEuler-22.03-LTS-SP3:受影响,openEuler-24.03-LTS:受影响,openEuler-22.03-LTS-SP4:不受影响,master:不受影响,openEuler-24.03-LTS-Next:不受影响|
|已分析|5.修复是否涉及abi变化|openEuler-20.03-LTS-SP4:否,openEuler-22.03-LTS-SP1:否,openEuler-22.03-LTS-SP3:否,master:否,openEuler-24.03-LTS:否,openEuler-24.03-LTS-Next:否,openEuler-22.03-LTS-SP4:否|

**请确认分析内容的准确性, 确认无误后, 您可以进行后续步骤, 否则您可以继续分析.**

CVE-2024-40981

影响性分析说明：
In the Linux kernel, the following vulnerability has been resolved:

batman-adv: bypass empty buckets in batadv_purge_orig_ref()

Many syzbot reports are pointing to soft lockups in
batadv_purge_orig_ref() [1]

Root cause is unknown, but we can avoid spending too much
time there and perhaps get more interesting reports.

[1]

watchdog: BUG: soft lockup - CPU#0 stuck for 27s! [kworker/u4:6:621]
Modules linked in:
irq event stamp: 6182794
 hardirqs last  enabled at (6182793): [&lt;ffff8000801dae10&gt;] __local_bh_enable_ip+0x224/0x44c kernel/softirq.c:386
 hardirqs last disabled at (6182794): [&lt;ffff80008ad66a78&gt;] __el1_irq arch/arm64/kernel/entry-common.c:533 [inline]
 hardirqs last disabled at (6182794): [&lt;ffff80008ad66a78&gt;] el1_interrupt+0x24/0x68 arch/arm64/kernel/entry-common.c:551
 softirqs last  enabled at (6182792): [&lt;ffff80008aab71c4&gt;] spin_unlock_bh include/linux/spinlock.h:396 [inline]
 softirqs last  enabled at (6182792): [&lt;ffff80008aab71c4&gt;] batadv_purge_orig_ref+0x114c/0x1228 net/batman-adv/originator.c:1287
 softirqs last disabled at (6182790): [&lt;ffff80008aab61dc&gt;] spin_lock_bh include/linux/spinlock.h:356 [inline]
 softirqs last disabled at (6182790): [&lt;ffff80008aab61dc&gt;] batadv_purge_orig_ref+0x164/0x1228 net/batman-adv/originator.c:1271
CPU: 0 PID: 621 Comm: kworker/u4:6 Not tainted 6.8.0-rc7-syzkaller-g707081b61156 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024
Workqueue: bat_events batadv_purge_orig
pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
 pc : should_resched arch/arm64/include/asm/preempt.h:79 [inline]
 pc : __local_bh_enable_ip+0x228/0x44c kernel/softirq.c:388
 lr : __local_bh_enable_ip+0x224/0x44c kernel/softirq.c:386
sp : ffff800099007970
x29: ffff800099007980 x28: 1fffe00018fce1bd x27: dfff800000000000
x26: ffff0000d2620008 x25: ffff0000c7e70de8 x24: 0000000000000001
x23: 1fffe00018e57781 x22: dfff800000000000 x21: ffff80008aab71c4
x20: ffff0001b40136c0 x19: ffff0000c72bbc08 x18: 1fffe0001a817bb0
x17: ffff800125414000 x16: ffff80008032116c x15: 0000000000000001
x14: 1fffe0001ee9d610 x13: 0000000000000000 x12: 0000000000000003
x11: 0000000000000000 x10: 0000000000ff0100 x9 : 0000000000000000
x8 : 00000000005e5789 x7 : ffff80008aab61dc x6 : 0000000000000000
x5 : 0000000000000000 x4 : 0000000000000001 x3 : 0000000000000000
x2 : 0000000000000006 x1 : 0000000000000080 x0 : ffff800125414000
Call trace:
  __daif_local_irq_enable arch/arm64/include/asm/irqflags.h:27 [inline]
  arch_local_irq_enable arch/arm64/include/asm/irqflags.h:49 [inline]
  __local_bh_enable_ip+0x228/0x44c kernel/softirq.c:386
  __raw_spin_unlock_bh include/linux/spinlock_api_smp.h:167 [inline]
  _raw_spin_unlock_bh+0x3c/0x4c kernel/locking/spinlock.c:210
  spin_unlock_bh include/linux/spinlock.h:396 [inline]
  batadv_purge_orig_ref+0x114c/0x1228 net/batman-adv/originator.c:1287
  batadv_purge_orig+0x20/0x70 net/batman-adv/originator.c:1300
  process_one_work+0x694/0x1204 kernel/workqueue.c:2633
  process_scheduled_works kernel/workqueue.c:2706 [inline]
  worker_thread+0x938/0xef4 kernel/workqueue.c:2787
  kthread+0x288/0x310 kernel/kthread.c:388
  ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:860
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 0 Comm: swapper/1 Not tainted 6.8.0-rc7-syzkaller-g707081b61156 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024
pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
 pc : arch_local_irq_enable+0x8/0xc arch/arm64/include/asm/irqflags.h:51
 lr : default_idle_call+0xf8/0x128 kernel/sched/idle.c:103
sp : ffff800093a17d30
x29: ffff800093a17d30 x28: dfff800000000000 x27: 1ffff00012742fb4
x26: ffff80008ec9d000 x25: 0000000000000000 x24: 0000000000000002
x23: 1ffff00011d93a74 x22: ffff80008ec9d3a0 x21: 0000000000000000
x20: ffff0000c19dbc00 x19: ffff8000802d0fd8 x18: 1fffe00036804396
x17: ffff80008ec9d000 x16: ffff8000802d089c x15: 0000000000000001
x14: 1fffe00036805f10 x13: 0000000000000000 x12: 0000000000000003
x11: 0000000000000001 x10: 0000000000000003 x9 : 0000000000000000
x8 : 00000000000ce8d1 x7 : ffff8000804609e4 x6 : 0000000000000000
x5 : 0000000000000001 x4 : 0000000000000001 x3 : ffff80008ad6aac0
x2 : 0000000000000000 x1 : ffff80008aedea60 x0 : ffff800125436000
Call trace:
  __daif_local_irq_enable arch/arm64/include/asm/irqflags.h:27 [inline]
  arch_local_irq_enable+0x8/0xc arch/arm64/include/asm/irqflags.h:49
  cpuidle_idle_call kernel/sched/idle.c:170 [inline]
  do_idle+0x1f0/0x4e8 kernel/sched/idle.c:312
  cpu_startup_entry+0x5c/0x74 kernel/sched/idle.c:410
  secondary_start_kernel+0x198/0x1c0 arch/arm64/kernel/smp.c:272
  __secondary_switched+0xb8/0xbc arch/arm64/kernel/head.S:404

The Linux kernel CVE team has assigned CVE-2024-40981 to this issue.

openEuler评分:(评分和向量)
3.9
AV:L/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:L

受影响版本排查(受影响/不受影响):
1.openEuler-20.03-LTS-SP4:受影响
2.openEuler-22.03-LTS-SP1:受影响
3.openEuler-22.03-LTS-SP3:受影响
4.openEuler-22.03-LTS-SP4:不受影响
5.master(6.1.0):不受影响
6.openEuler-24.03-LTS:受影响
7.openEuler-24.03-LTS-Next:不受影响

修复是否涉及abi变化(是/否)：
1.openEuler-20.03-LTS-SP4:否
2.openEuler-22.03-LTS-SP1:否
3.openEuler-22.03-LTS-SP3:否
4.master(6.1.0):否
5.openEuler-24.03-LTS:否
6.openEuler-24.03-LTS-Next:否
7.openEuler-22.03-LTS-SP4:否

@ 经过 cve-manager 解析, 已分析的内容如下表所示:
| 状态  | 需分析 | 内容 |
|:--:|:--:|---------|
|已分析|1.影响性分析说明|In the Linux kernel, the following vulnerability has been resolved:batman-adv: bypass empty buckets in batadv_purge_orig_ref()Many syzbot reports are pointing to soft lockups inbatadv_purge_orig_ref() [1]Root cause is unknown, but we can avoid spending too muchtime there and perhaps get more interesting reports.[1]watchdog: BUG: soft lockup - CPU#0 stuck for 27s! [kworker/u4:6:621]Modules linked in:irq event stamp: 6182794 hardirqs last  enabled at (6182793): [&lt;ffff8000801dae10&gt;] __local_bh_enable_ip+0x224/0x44c kernel/softirq.c:386 hardirqs last disabled at (6182794): [&lt;ffff80008ad66a78&gt;] __el1_irq arch/arm64/kernel/entry-common.c:533 [inline] hardirqs last disabled at (6182794): [&lt;ffff80008ad66a78&gt;] el1_interrupt+0x24/0x68 arch/arm64/kernel/entry-common.c:551 softirqs last  enabled at (6182792): [&lt;ffff80008aab71c4&gt;] spin_unlock_bh include/linux/spinlock.h:396 [inline] softirqs last  enabled at (6182792): [&lt;ffff80008aab71c4&gt;] batadv_purge_orig_ref+0x114c/0x1228 net/batman-adv/originator.c:1287 softirqs last disabled at (6182790): [&lt;ffff80008aab61dc&gt;] spin_lock_bh include/linux/spinlock.h:356 [inline] softirqs last disabled at (6182790): [&lt;ffff80008aab61dc&gt;] batadv_purge_orig_ref+0x164/0x1228 net/batman-adv/originator.c:1271CPU: 0 PID: 621 Comm: kworker/u4:6 Not tainted 6.8.0-rc7-syzkaller-g707081b61156 #0Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024Workqueue: bat_events batadv_purge_origpstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : should_resched arch/arm64/include/asm/preempt.h:79 [inline] pc : __local_bh_enable_ip+0x228/0x44c kernel/softirq.c:388 lr : __local_bh_enable_ip+0x224/0x44c kernel/softirq.c:386sp : ffff800099007970x29: ffff800099007980 x28: 1fffe00018fce1bd x27: dfff800000000000x26: ffff0000d2620008 x25: ffff0000c7e70de8 x24: 0000000000000001x23: 1fffe00018e57781 x22: dfff800000000000 x21: ffff80008aab71c4x20: ffff0001b40136c0 x19: ffff0000c72bbc08 x18: 1fffe0001a817bb0x17: ffff800125414000 x16: ffff80008032116c x15: 0000000000000001x14: 1fffe0001ee9d610 x13: 0000000000000000 x12: 0000000000000003x11: 0000000000000000 x10: 0000000000ff0100 x9 : 0000000000000000x8 : 00000000005e5789 x7 : ffff80008aab61dc x6 : 0000000000000000x5 : 0000000000000000 x4 : 0000000000000001 x3 : 0000000000000000x2 : 0000000000000006 x1 : 0000000000000080 x0 : ffff800125414000Call trace:  __daif_local_irq_enable arch/arm64/include/asm/irqflags.h:27 [inline]  arch_local_irq_enable arch/arm64/include/asm/irqflags.h:49 [inline]  __local_bh_enable_ip+0x228/0x44c kernel/softirq.c:386  __raw_spin_unlock_bh include/linux/spinlock_api_smp.h:167 [inline]  _raw_spin_unlock_bh+0x3c/0x4c kernel/locking/spinlock.c:210  spin_unlock_bh include/linux/spinlock.h:396 [inline]  batadv_purge_orig_ref+0x114c/0x1228 net/batman-adv/originator.c:1287  batadv_purge_orig+0x20/0x70 net/batman-adv/originator.c:1300  process_one_work+0x694/0x1204 kernel/workqueue.c:2633  process_scheduled_works kernel/workqueue.c:2706 [inline]  worker_thread+0x938/0xef4 kernel/workqueue.c:2787  kthread+0x288/0x310 kernel/kthread.c:388  ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:860Sending NMI from CPU 0 to CPUs 1:NMI backtrace for cpu 1CPU: 1 PID: 0 Comm: swapper/1 Not tainted 6.8.0-rc7-syzkaller-g707081b61156 #0Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : arch_local_irq_enable+0x8/0xc arch/arm64/include/asm/irqflags.h:51 lr : default_idle_call+0xf8/0x128 kernel/sched/idle.c:103sp : ffff800093a17d30x29: ffff800093a17d30 x28: dfff800000000000 x27: 1ffff00012742fb4x26: ffff80008ec9d000 x25: 0000000000000000 x24: 0000000000000002x23: 1ffff00011d93a74 x22: ffff80008ec9d3a0 x21: 0000000000000000x20: ffff0000c19dbc00 x19: ffff8000802d0fd8 x18: 1fffe00036804396x17: ffff80008ec9d000 x16: ffff8000802d089c x15: 0000000000000001x14: 1fffe00036805f10 x13: 0000000000000000 x12: 0000000000000003x11: 0000000000000001 x10: 0000000000000003 x9 : 0000000000000000x8 : 00000000000ce8d1 x7 : ffff8000804609e4 x6 : 0000000000000000x5 : 0000000000000001 x4 : 0000000000000001 x3 : ffff80008ad6aac0x2 : 0000000000000000 x1 : ffff80008aedea60 x0 : ffff800125436000Call trace:  __daif_local_irq_enable arch/arm64/include/asm/irqflags.h:27 [inline]  arch_local_irq_enable+0x8/0xc arch/arm64/include/asm/irqflags.h:49  cpuidle_idle_call kernel/sched/idle.c:170 [inline]  do_idle+0x1f0/0x4e8 kernel/sched/idle.c:312  cpu_startup_entry+0x5c/0x74 kernel/sched/idle.c:410  secondary_start_kernel+0x198/0x1c0 arch/arm64/kernel/smp.c:272  __secondary_switched+0xb8/0xbc arch/arm64/kernel/head.S:404The Linux kernel CVE team has assigned CVE-2024-40981 to this issue.|
|已分析|2.openEulerScore|3.9|
|已分析|3.openEulerVector|AV:L/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:L|
|已分析|4.受影响版本排查|openEuler-20.03-LTS-SP4:受影响,openEuler-22.03-LTS-SP1:受影响,openEuler-22.03-LTS-SP3:受影响,openEuler-24.03-LTS:受影响,openEuler-22.03-LTS-SP4:不受影响,master:不受影响,openEuler-24.03-LTS-Next:不受影响|
|已分析|5.修复是否涉及abi变化|openEuler-20.03-LTS-SP4:否,openEuler-22.03-LTS-SP1:否,openEuler-22.03-LTS-SP3:否,master:否,openEuler-24.03-LTS:否,openEuler-24.03-LTS-Next:否,openEuler-22.03-LTS-SP4:否|

**请确认分析内容的准确性, 确认无误后, 您可以进行后续步骤, 否则您可以继续分析.**

CVE-2024-40981

影响性分析说明：
In the Linux kernel, the following vulnerability has been resolved:

batman-adv: bypass empty buckets in batadv_purge_orig_ref()

Many syzbot reports are pointing to soft lockups in
batadv_purge_orig_ref() [1]

Root cause is unknown, but we can avoid spending too much
time there and perhaps get more interesting reports.

[1]

watchdog: BUG: soft lockup - CPU#0 stuck for 27s! [kworker/u4:6:621]
Modules linked in:
irq event stamp: 6182794
 hardirqs last  enabled at (6182793): [&lt;ffff8000801dae10&gt;] __local_bh_enable_ip+0x224/0x44c kernel/softirq.c:386
 hardirqs last disabled at (6182794): [&lt;ffff80008ad66a78&gt;] __el1_irq arch/arm64/kernel/entry-common.c:533 [inline]
 hardirqs last disabled at (6182794): [&lt;ffff80008ad66a78&gt;] el1_interrupt+0x24/0x68 arch/arm64/kernel/entry-common.c:551
 softirqs last  enabled at (6182792): [&lt;ffff80008aab71c4&gt;] spin_unlock_bh include/linux/spinlock.h:396 [inline]
 softirqs last  enabled at (6182792): [&lt;ffff80008aab71c4&gt;] batadv_purge_orig_ref+0x114c/0x1228 net/batman-adv/originator.c:1287
 softirqs last disabled at (6182790): [&lt;ffff80008aab61dc&gt;] spin_lock_bh include/linux/spinlock.h:356 [inline]
 softirqs last disabled at (6182790): [&lt;ffff80008aab61dc&gt;] batadv_purge_orig_ref+0x164/0x1228 net/batman-adv/originator.c:1271
CPU: 0 PID: 621 Comm: kworker/u4:6 Not tainted 6.8.0-rc7-syzkaller-g707081b61156 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024
Workqueue: bat_events batadv_purge_orig
pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
 pc : should_resched arch/arm64/include/asm/preempt.h:79 [inline]
 pc : __local_bh_enable_ip+0x228/0x44c kernel/softirq.c:388
 lr : __local_bh_enable_ip+0x224/0x44c kernel/softirq.c:386
sp : ffff800099007970
x29: ffff800099007980 x28: 1fffe00018fce1bd x27: dfff800000000000
x26: ffff0000d2620008 x25: ffff0000c7e70de8 x24: 0000000000000001
x23: 1fffe00018e57781 x22: dfff800000000000 x21: ffff80008aab71c4
x20: ffff0001b40136c0 x19: ffff0000c72bbc08 x18: 1fffe0001a817bb0
x17: ffff800125414000 x16: ffff80008032116c x15: 0000000000000001
x14: 1fffe0001ee9d610 x13: 0000000000000000 x12: 0000000000000003
x11: 0000000000000000 x10: 0000000000ff0100 x9 : 0000000000000000
x8 : 00000000005e5789 x7 : ffff80008aab61dc x6 : 0000000000000000
x5 : 0000000000000000 x4 : 0000000000000001 x3 : 0000000000000000
x2 : 0000000000000006 x1 : 0000000000000080 x0 : ffff800125414000
Call trace:
  __daif_local_irq_enable arch/arm64/include/asm/irqflags.h:27 [inline]
  arch_local_irq_enable arch/arm64/include/asm/irqflags.h:49 [inline]
  __local_bh_enable_ip+0x228/0x44c kernel/softirq.c:386
  __raw_spin_unlock_bh include/linux/spinlock_api_smp.h:167 [inline]
  _raw_spin_unlock_bh+0x3c/0x4c kernel/locking/spinlock.c:210
  spin_unlock_bh include/linux/spinlock.h:396 [inline]
  batadv_purge_orig_ref+0x114c/0x1228 net/batman-adv/originator.c:1287
  batadv_purge_orig+0x20/0x70 net/batman-adv/originator.c:1300
  process_one_work+0x694/0x1204 kernel/workqueue.c:2633
  process_scheduled_works kernel/workqueue.c:2706 [inline]
  worker_thread+0x938/0xef4 kernel/workqueue.c:2787
  kthread+0x288/0x310 kernel/kthread.c:388
  ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:860
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 0 Comm: swapper/1 Not tainted 6.8.0-rc7-syzkaller-g707081b61156 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024
pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
 pc : arch_local_irq_enable+0x8/0xc arch/arm64/include/asm/irqflags.h:51
 lr : default_idle_call+0xf8/0x128 kernel/sched/idle.c:103
sp : ffff800093a17d30
x29: ffff800093a17d30 x28: dfff800000000000 x27: 1ffff00012742fb4
x26: ffff80008ec9d000 x25: 0000000000000000 x24: 0000000000000002
x23: 1ffff00011d93a74 x22: ffff80008ec9d3a0 x21: 0000000000000000
x20: ffff0000c19dbc00 x19: ffff8000802d0fd8 x18: 1fffe00036804396
x17: ffff80008ec9d000 x16: ffff8000802d089c x15: 0000000000000001
x14: 1fffe00036805f10 x13: 0000000000000000 x12: 0000000000000003
x11: 0000000000000001 x10: 0000000000000003 x9 : 0000000000000000
x8 : 00000000000ce8d1 x7 : ffff8000804609e4 x6 : 0000000000000000
x5 : 0000000000000001 x4 : 0000000000000001 x3 : ffff80008ad6aac0
x2 : 0000000000000000 x1 : ffff80008aedea60 x0 : ffff800125436000
Call trace:
  __daif_local_irq_enable arch/arm64/include/asm/irqflags.h:27 [inline]
  arch_local_irq_enable+0x8/0xc arch/arm64/include/asm/irqflags.h:49
  cpuidle_idle_call kernel/sched/idle.c:170 [inline]
  do_idle+0x1f0/0x4e8 kernel/sched/idle.c:312
  cpu_startup_entry+0x5c/0x74 kernel/sched/idle.c:410
  secondary_start_kernel+0x198/0x1c0 arch/arm64/kernel/smp.c:272
  __secondary_switched+0xb8/0xbc arch/arm64/kernel/head.S:404

The Linux kernel CVE team has assigned CVE-2024-40981 to this issue.

openEuler评分:(评分和向量)
3.9
AV:L/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:L

受影响版本排查(受影响/不受影响):
1.openEuler-20.03-LTS-SP4:受影响
2.openEuler-22.03-LTS-SP1:受影响
3.openEuler-22.03-LTS-SP3:受影响
4.openEuler-22.03-LTS-SP4:不受影响
5.master(6.1.0):不受影响
6.openEuler-24.03-LTS:受影响
7.openEuler-24.03-LTS-Next:不受影响

修复是否涉及abi变化(是/否)：
1.openEuler-20.03-LTS-SP4:否
2.openEuler-22.03-LTS-SP1:否
3.openEuler-22.03-LTS-SP3:否
4.master(6.1.0):否
5.openEuler-24.03-LTS:否
6.openEuler-24.03-LTS-Next:否
7.openEuler-22.03-LTS-SP4:否

@ 经过 cve-manager 解析, 已分析的内容如下表所示:
| 状态  | 需分析 | 内容 |
|:--:|:--:|---------|
|已分析|1.影响性分析说明|In the Linux kernel, the following vulnerability has been resolved:batman-adv: bypass empty buckets in batadv_purge_orig_ref()Many syzbot reports are pointing to soft lockups inbatadv_purge_orig_ref() [1]Root cause is unknown, but we can avoid spending too muchtime there and perhaps get more interesting reports.[1]watchdog: BUG: soft lockup - CPU#0 stuck for 27s! [kworker/u4:6:621]Modules linked in:irq event stamp: 6182794 hardirqs last  enabled at (6182793): [&lt;ffff8000801dae10&gt;] __local_bh_enable_ip+0x224/0x44c kernel/softirq.c:386 hardirqs last disabled at (6182794): [&lt;ffff80008ad66a78&gt;] __el1_irq arch/arm64/kernel/entry-common.c:533 [inline] hardirqs last disabled at (6182794): [&lt;ffff80008ad66a78&gt;] el1_interrupt+0x24/0x68 arch/arm64/kernel/entry-common.c:551 softirqs last  enabled at (6182792): [&lt;ffff80008aab71c4&gt;] spin_unlock_bh include/linux/spinlock.h:396 [inline] softirqs last  enabled at (6182792): [&lt;ffff80008aab71c4&gt;] batadv_purge_orig_ref+0x114c/0x1228 net/batman-adv/originator.c:1287 softirqs last disabled at (6182790): [&lt;ffff80008aab61dc&gt;] spin_lock_bh include/linux/spinlock.h:356 [inline] softirqs last disabled at (6182790): [&lt;ffff80008aab61dc&gt;] batadv_purge_orig_ref+0x164/0x1228 net/batman-adv/originator.c:1271CPU: 0 PID: 621 Comm: kworker/u4:6 Not tainted 6.8.0-rc7-syzkaller-g707081b61156 #0Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024Workqueue: bat_events batadv_purge_origpstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : should_resched arch/arm64/include/asm/preempt.h:79 [inline] pc : __local_bh_enable_ip+0x228/0x44c kernel/softirq.c:388 lr : __local_bh_enable_ip+0x224/0x44c kernel/softirq.c:386sp : ffff800099007970x29: ffff800099007980 x28: 1fffe00018fce1bd x27: dfff800000000000x26: ffff0000d2620008 x25: ffff0000c7e70de8 x24: 0000000000000001x23: 1fffe00018e57781 x22: dfff800000000000 x21: ffff80008aab71c4x20: ffff0001b40136c0 x19: ffff0000c72bbc08 x18: 1fffe0001a817bb0x17: ffff800125414000 x16: ffff80008032116c x15: 0000000000000001x14: 1fffe0001ee9d610 x13: 0000000000000000 x12: 0000000000000003x11: 0000000000000000 x10: 0000000000ff0100 x9 : 0000000000000000x8 : 00000000005e5789 x7 : ffff80008aab61dc x6 : 0000000000000000x5 : 0000000000000000 x4 : 0000000000000001 x3 : 0000000000000000x2 : 0000000000000006 x1 : 0000000000000080 x0 : ffff800125414000Call trace:  __daif_local_irq_enable arch/arm64/include/asm/irqflags.h:27 [inline]  arch_local_irq_enable arch/arm64/include/asm/irqflags.h:49 [inline]  __local_bh_enable_ip+0x228/0x44c kernel/softirq.c:386  __raw_spin_unlock_bh include/linux/spinlock_api_smp.h:167 [inline]  _raw_spin_unlock_bh+0x3c/0x4c kernel/locking/spinlock.c:210  spin_unlock_bh include/linux/spinlock.h:396 [inline]  batadv_purge_orig_ref+0x114c/0x1228 net/batman-adv/originator.c:1287  batadv_purge_orig+0x20/0x70 net/batman-adv/originator.c:1300  process_one_work+0x694/0x1204 kernel/workqueue.c:2633  process_scheduled_works kernel/workqueue.c:2706 [inline]  worker_thread+0x938/0xef4 kernel/workqueue.c:2787  kthread+0x288/0x310 kernel/kthread.c:388  ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:860Sending NMI from CPU 0 to CPUs 1:NMI backtrace for cpu 1CPU: 1 PID: 0 Comm: swapper/1 Not tainted 6.8.0-rc7-syzkaller-g707081b61156 #0Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : arch_local_irq_enable+0x8/0xc arch/arm64/include/asm/irqflags.h:51 lr : default_idle_call+0xf8/0x128 kernel/sched/idle.c:103sp : ffff800093a17d30x29: ffff800093a17d30 x28: dfff800000000000 x27: 1ffff00012742fb4x26: ffff80008ec9d000 x25: 0000000000000000 x24: 0000000000000002x23: 1ffff00011d93a74 x22: ffff80008ec9d3a0 x21: 0000000000000000x20: ffff0000c19dbc00 x19: ffff8000802d0fd8 x18: 1fffe00036804396x17: ffff80008ec9d000 x16: ffff8000802d089c x15: 0000000000000001x14: 1fffe00036805f10 x13: 0000000000000000 x12: 0000000000000003x11: 0000000000000001 x10: 0000000000000003 x9 : 0000000000000000x8 : 00000000000ce8d1 x7 : ffff8000804609e4 x6 : 0000000000000000x5 : 0000000000000001 x4 : 0000000000000001 x3 : ffff80008ad6aac0x2 : 0000000000000000 x1 : ffff80008aedea60 x0 : ffff800125436000Call trace:  __daif_local_irq_enable arch/arm64/include/asm/irqflags.h:27 [inline]  arch_local_irq_enable+0x8/0xc arch/arm64/include/asm/irqflags.h:49  cpuidle_idle_call kernel/sched/idle.c:170 [inline]  do_idle+0x1f0/0x4e8 kernel/sched/idle.c:312  cpu_startup_entry+0x5c/0x74 kernel/sched/idle.c:410  secondary_start_kernel+0x198/0x1c0 arch/arm64/kernel/smp.c:272  __secondary_switched+0xb8/0xbc arch/arm64/kernel/head.S:404The Linux kernel CVE team has assigned CVE-2024-40981 to this issue.|
|已分析|2.openEulerScore|3.9|
|已分析|3.openEulerVector|AV:L/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:L|
|已分析|4.受影响版本排查|openEuler-20.03-LTS-SP4:受影响,openEuler-22.03-LTS-SP1:受影响,openEuler-22.03-LTS-SP3:受影响,openEuler-24.03-LTS:受影响,openEuler-22.03-LTS-SP4:不受影响,master:不受影响,openEuler-24.03-LTS-Next:不受影响|
|已分析|5.修复是否涉及abi变化|openEuler-20.03-LTS-SP4:否,openEuler-22.03-LTS-SP1:否,openEuler-22.03-LTS-SP3:否,master:否,openEuler-24.03-LTS:否,openEuler-24.03-LTS-Next:否,openEuler-22.03-LTS-SP4:否|

**请确认分析内容的准确性, 确认无误后, 您可以进行后续步骤, 否则您可以继续分析.**

CVE-2024-40981

影响性分析说明：
In the Linux kernel, the following vulnerability has been resolved:

batman-adv: bypass empty buckets in batadv_purge_orig_ref()

Many syzbot reports are pointing to soft lockups in
batadv_purge_orig_ref() [1]

Root cause is unknown, but we can avoid spending too much
time there and perhaps get more interesting reports.

[1]

watchdog: BUG: soft lockup - CPU#0 stuck for 27s! [kworker/u4:6:621]
Modules linked in:
irq event stamp: 6182794
 hardirqs last  enabled at (6182793): [&lt;ffff8000801dae10&gt;] __local_bh_enable_ip+0x224/0x44c kernel/softirq.c:386
 hardirqs last disabled at (6182794): [&lt;ffff80008ad66a78&gt;] __el1_irq arch/arm64/kernel/entry-common.c:533 [inline]
 hardirqs last disabled at (6182794): [&lt;ffff80008ad66a78&gt;] el1_interrupt+0x24/0x68 arch/arm64/kernel/entry-common.c:551
 softirqs last  enabled at (6182792): [&lt;ffff80008aab71c4&gt;] spin_unlock_bh include/linux/spinlock.h:396 [inline]
 softirqs last  enabled at (6182792): [&lt;ffff80008aab71c4&gt;] batadv_purge_orig_ref+0x114c/0x1228 net/batman-adv/originator.c:1287
 softirqs last disabled at (6182790): [&lt;ffff80008aab61dc&gt;] spin_lock_bh include/linux/spinlock.h:356 [inline]
 softirqs last disabled at (6182790): [&lt;ffff80008aab61dc&gt;] batadv_purge_orig_ref+0x164/0x1228 net/batman-adv/originator.c:1271
CPU: 0 PID: 621 Comm: kworker/u4:6 Not tainted 6.8.0-rc7-syzkaller-g707081b61156 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024
Workqueue: bat_events batadv_purge_orig
pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
 pc : should_resched arch/arm64/include/asm/preempt.h:79 [inline]
 pc : __local_bh_enable_ip+0x228/0x44c kernel/softirq.c:388
 lr : __local_bh_enable_ip+0x224/0x44c kernel/softirq.c:386
sp : ffff800099007970
x29: ffff800099007980 x28: 1fffe00018fce1bd x27: dfff800000000000
x26: ffff0000d2620008 x25: ffff0000c7e70de8 x24: 0000000000000001
x23: 1fffe00018e57781 x22: dfff800000000000 x21: ffff80008aab71c4
x20: ffff0001b40136c0 x19: ffff0000c72bbc08 x18: 1fffe0001a817bb0
x17: ffff800125414000 x16: ffff80008032116c x15: 0000000000000001
x14: 1fffe0001ee9d610 x13: 0000000000000000 x12: 0000000000000003
x11: 0000000000000000 x10: 0000000000ff0100 x9 : 0000000000000000
x8 : 00000000005e5789 x7 : ffff80008aab61dc x6 : 0000000000000000
x5 : 0000000000000000 x4 : 0000000000000001 x3 : 0000000000000000
x2 : 0000000000000006 x1 : 0000000000000080 x0 : ffff800125414000
Call trace:
  __daif_local_irq_enable arch/arm64/include/asm/irqflags.h:27 [inline]
  arch_local_irq_enable arch/arm64/include/asm/irqflags.h:49 [inline]
  __local_bh_enable_ip+0x228/0x44c kernel/softirq.c:386
  __raw_spin_unlock_bh include/linux/spinlock_api_smp.h:167 [inline]
  _raw_spin_unlock_bh+0x3c/0x4c kernel/locking/spinlock.c:210
  spin_unlock_bh include/linux/spinlock.h:396 [inline]
  batadv_purge_orig_ref+0x114c/0x1228 net/batman-adv/originator.c:1287
  batadv_purge_orig+0x20/0x70 net/batman-adv/originator.c:1300
  process_one_work+0x694/0x1204 kernel/workqueue.c:2633
  process_scheduled_works kernel/workqueue.c:2706 [inline]
  worker_thread+0x938/0xef4 kernel/workqueue.c:2787
  kthread+0x288/0x310 kernel/kthread.c:388
  ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:860
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 0 Comm: swapper/1 Not tainted 6.8.0-rc7-syzkaller-g707081b61156 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024
pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
 pc : arch_local_irq_enable+0x8/0xc arch/arm64/include/asm/irqflags.h:51
 lr : default_idle_call+0xf8/0x128 kernel/sched/idle.c:103
sp : ffff800093a17d30
x29: ffff800093a17d30 x28: dfff800000000000 x27: 1ffff00012742fb4
x26: ffff80008ec9d000 x25: 0000000000000000 x24: 0000000000000002
x23: 1ffff00011d93a74 x22: ffff80008ec9d3a0 x21: 0000000000000000
x20: ffff0000c19dbc00 x19: ffff8000802d0fd8 x18: 1fffe00036804396
x17: ffff80008ec9d000 x16: ffff8000802d089c x15: 0000000000000001
x14: 1fffe00036805f10 x13: 0000000000000000 x12: 0000000000000003
x11: 0000000000000001 x10: 0000000000000003 x9 : 0000000000000000
x8 : 00000000000ce8d1 x7 : ffff8000804609e4 x6 : 0000000000000000
x5 : 0000000000000001 x4 : 0000000000000001 x3 : ffff80008ad6aac0
x2 : 0000000000000000 x1 : ffff80008aedea60 x0 : ffff800125436000
Call trace:
  __daif_local_irq_enable arch/arm64/include/asm/irqflags.h:27 [inline]
  arch_local_irq_enable+0x8/0xc arch/arm64/include/asm/irqflags.h:49
  cpuidle_idle_call kernel/sched/idle.c:170 [inline]
  do_idle+0x1f0/0x4e8 kernel/sched/idle.c:312
  cpu_startup_entry+0x5c/0x74 kernel/sched/idle.c:410
  secondary_start_kernel+0x198/0x1c0 arch/arm64/kernel/smp.c:272
  __secondary_switched+0xb8/0xbc arch/arm64/kernel/head.S:404

The Linux kernel CVE team has assigned CVE-2024-40981 to this issue.

openEuler评分:(评分和向量)
5.5
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

受影响版本排查(受影响/不受影响):
1.openEuler-20.03-LTS-SP4:受影响
2.openEuler-22.03-LTS-SP1:受影响
3.openEuler-22.03-LTS-SP3:受影响
4.openEuler-22.03-LTS-SP4:不受影响
5.master(6.1.0):不受影响
6.openEuler-24.03-LTS:受影响
7.openEuler-24.03-LTS-Next:不受影响

修复是否涉及abi变化(是/否)：
1.openEuler-20.03-LTS-SP4:否
2.openEuler-22.03-LTS-SP1:否
3.openEuler-22.03-LTS-SP3:否
4.master(6.1.0):否
5.openEuler-24.03-LTS:否
6.openEuler-24.03-LTS-Next:否
7.openEuler-22.03-LTS-SP4:否

@ 经过 cve-manager 解析, 已分析的内容如下表所示:
| 状态  | 需分析 | 内容 |
|:--:|:--:|---------|
|已分析|1.影响性分析说明|In the Linux kernel, the following vulnerability has been resolved:batman-adv: bypass empty buckets in batadv_purge_orig_ref()Many syzbot reports are pointing to soft lockups inbatadv_purge_orig_ref() [1]Root cause is unknown, but we can avoid spending too muchtime there and perhaps get more interesting reports.[1]watchdog: BUG: soft lockup - CPU#0 stuck for 27s! [kworker/u4:6:621]Modules linked in:irq event stamp: 6182794 hardirqs last  enabled at (6182793): [&lt;ffff8000801dae10&gt;] __local_bh_enable_ip+0x224/0x44c kernel/softirq.c:386 hardirqs last disabled at (6182794): [&lt;ffff80008ad66a78&gt;] __el1_irq arch/arm64/kernel/entry-common.c:533 [inline] hardirqs last disabled at (6182794): [&lt;ffff80008ad66a78&gt;] el1_interrupt+0x24/0x68 arch/arm64/kernel/entry-common.c:551 softirqs last  enabled at (6182792): [&lt;ffff80008aab71c4&gt;] spin_unlock_bh include/linux/spinlock.h:396 [inline] softirqs last  enabled at (6182792): [&lt;ffff80008aab71c4&gt;] batadv_purge_orig_ref+0x114c/0x1228 net/batman-adv/originator.c:1287 softirqs last disabled at (6182790): [&lt;ffff80008aab61dc&gt;] spin_lock_bh include/linux/spinlock.h:356 [inline] softirqs last disabled at (6182790): [&lt;ffff80008aab61dc&gt;] batadv_purge_orig_ref+0x164/0x1228 net/batman-adv/originator.c:1271CPU: 0 PID: 621 Comm: kworker/u4:6 Not tainted 6.8.0-rc7-syzkaller-g707081b61156 #0Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024Workqueue: bat_events batadv_purge_origpstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : should_resched arch/arm64/include/asm/preempt.h:79 [inline] pc : __local_bh_enable_ip+0x228/0x44c kernel/softirq.c:388 lr : __local_bh_enable_ip+0x224/0x44c kernel/softirq.c:386sp : ffff800099007970x29: ffff800099007980 x28: 1fffe00018fce1bd x27: dfff800000000000x26: ffff0000d2620008 x25: ffff0000c7e70de8 x24: 0000000000000001x23: 1fffe00018e57781 x22: dfff800000000000 x21: ffff80008aab71c4x20: ffff0001b40136c0 x19: ffff0000c72bbc08 x18: 1fffe0001a817bb0x17: ffff800125414000 x16: ffff80008032116c x15: 0000000000000001x14: 1fffe0001ee9d610 x13: 0000000000000000 x12: 0000000000000003x11: 0000000000000000 x10: 0000000000ff0100 x9 : 0000000000000000x8 : 00000000005e5789 x7 : ffff80008aab61dc x6 : 0000000000000000x5 : 0000000000000000 x4 : 0000000000000001 x3 : 0000000000000000x2 : 0000000000000006 x1 : 0000000000000080 x0 : ffff800125414000Call trace:  __daif_local_irq_enable arch/arm64/include/asm/irqflags.h:27 [inline]  arch_local_irq_enable arch/arm64/include/asm/irqflags.h:49 [inline]  __local_bh_enable_ip+0x228/0x44c kernel/softirq.c:386  __raw_spin_unlock_bh include/linux/spinlock_api_smp.h:167 [inline]  _raw_spin_unlock_bh+0x3c/0x4c kernel/locking/spinlock.c:210  spin_unlock_bh include/linux/spinlock.h:396 [inline]  batadv_purge_orig_ref+0x114c/0x1228 net/batman-adv/originator.c:1287  batadv_purge_orig+0x20/0x70 net/batman-adv/originator.c:1300  process_one_work+0x694/0x1204 kernel/workqueue.c:2633  process_scheduled_works kernel/workqueue.c:2706 [inline]  worker_thread+0x938/0xef4 kernel/workqueue.c:2787  kthread+0x288/0x310 kernel/kthread.c:388  ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:860Sending NMI from CPU 0 to CPUs 1:NMI backtrace for cpu 1CPU: 1 PID: 0 Comm: swapper/1 Not tainted 6.8.0-rc7-syzkaller-g707081b61156 #0Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : arch_local_irq_enable+0x8/0xc arch/arm64/include/asm/irqflags.h:51 lr : default_idle_call+0xf8/0x128 kernel/sched/idle.c:103sp : ffff800093a17d30x29: ffff800093a17d30 x28: dfff800000000000 x27: 1ffff00012742fb4x26: ffff80008ec9d000 x25: 0000000000000000 x24: 0000000000000002x23: 1ffff00011d93a74 x22: ffff80008ec9d3a0 x21: 0000000000000000x20: ffff0000c19dbc00 x19: ffff8000802d0fd8 x18: 1fffe00036804396x17: ffff80008ec9d000 x16: ffff8000802d089c x15: 0000000000000001x14: 1fffe00036805f10 x13: 0000000000000000 x12: 0000000000000003x11: 0000000000000001 x10: 0000000000000003 x9 : 0000000000000000x8 : 00000000000ce8d1 x7 : ffff8000804609e4 x6 : 0000000000000000x5 : 0000000000000001 x4 : 0000000000000001 x3 : ffff80008ad6aac0x2 : 0000000000000000 x1 : ffff80008aedea60 x0 : ffff800125436000Call trace:  __daif_local_irq_enable arch/arm64/include/asm/irqflags.h:27 [inline]  arch_local_irq_enable+0x8/0xc arch/arm64/include/asm/irqflags.h:49  cpuidle_idle_call kernel/sched/idle.c:170 [inline]  do_idle+0x1f0/0x4e8 kernel/sched/idle.c:312  cpu_startup_entry+0x5c/0x74 kernel/sched/idle.c:410  secondary_start_kernel+0x198/0x1c0 arch/arm64/kernel/smp.c:272  __secondary_switched+0xb8/0xbc arch/arm64/kernel/head.S:404The Linux kernel CVE team has assigned CVE-2024-40981 to this issue.|
|已分析|2.openEulerScore|5.5|
|已分析|3.openEulerVector|AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H|
|已分析|4.受影响版本排查|openEuler-20.03-LTS-SP4:受影响,openEuler-22.03-LTS-SP1:受影响,openEuler-22.03-LTS-SP3:受影响,openEuler-24.03-LTS:受影响,openEuler-22.03-LTS-SP4:不受影响,master:不受影响,openEuler-24.03-LTS-Next:不受影响|
|已分析|5.修复是否涉及abi变化|openEuler-20.03-LTS-SP4:否,openEuler-22.03-LTS-SP1:否,openEuler-22.03-LTS-SP3:否,master:否,openEuler-24.03-LTS:否,openEuler-24.03-LTS-Next:否,openEuler-22.03-LTS-SP4:否|

**请确认分析内容的准确性, 确认无误后, 您可以进行后续步骤, 否则您可以继续分析.**

CVE-2024-40981

影响性分析说明：
In the Linux kernel, the following vulnerability has been resolved:

batman-adv: bypass empty buckets in batadv_purge_orig_ref()

Many syzbot reports are pointing to soft lockups in
batadv_purge_orig_ref() [1]

Root cause is unknown, but we can avoid spending too much
time there and perhaps get more interesting reports.

[1]

watchdog: BUG: soft lockup - CPU#0 stuck for 27s! [kworker/u4:6:621]
Modules linked in:
irq event stamp: 6182794
 hardirqs last  enabled at (6182793): [&lt;ffff8000801dae10&gt;] __local_bh_enable_ip+0x224/0x44c kernel/softirq.c:386
 hardirqs last disabled at (6182794): [&lt;ffff80008ad66a78&gt;] __el1_irq arch/arm64/kernel/entry-common.c:533 [inline]
 hardirqs last disabled at (6182794): [&lt;ffff80008ad66a78&gt;] el1_interrupt+0x24/0x68 arch/arm64/kernel/entry-common.c:551
 softirqs last  enabled at (6182792): [&lt;ffff80008aab71c4&gt;] spin_unlock_bh include/linux/spinlock.h:396 [inline]
 softirqs last  enabled at (6182792): [&lt;ffff80008aab71c4&gt;] batadv_purge_orig_ref+0x114c/0x1228 net/batman-adv/originator.c:1287
 softirqs last disabled at (6182790): [&lt;ffff80008aab61dc&gt;] spin_lock_bh include/linux/spinlock.h:356 [inline]
 softirqs last disabled at (6182790): [&lt;ffff80008aab61dc&gt;] batadv_purge_orig_ref+0x164/0x1228 net/batman-adv/originator.c:1271
CPU: 0 PID: 621 Comm: kworker/u4:6 Not tainted 6.8.0-rc7-syzkaller-g707081b61156 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024
Workqueue: bat_events batadv_purge_orig
pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
 pc : should_resched arch/arm64/include/asm/preempt.h:79 [inline]
 pc : __local_bh_enable_ip+0x228/0x44c kernel/softirq.c:388
 lr : __local_bh_enable_ip+0x224/0x44c kernel/softirq.c:386
sp : ffff800099007970
x29: ffff800099007980 x28: 1fffe00018fce1bd x27: dfff800000000000
x26: ffff0000d2620008 x25: ffff0000c7e70de8 x24: 0000000000000001
x23: 1fffe00018e57781 x22: dfff800000000000 x21: ffff80008aab71c4
x20: ffff0001b40136c0 x19: ffff0000c72bbc08 x18: 1fffe0001a817bb0
x17: ffff800125414000 x16: ffff80008032116c x15: 0000000000000001
x14: 1fffe0001ee9d610 x13: 0000000000000000 x12: 0000000000000003
x11: 0000000000000000 x10: 0000000000ff0100 x9 : 0000000000000000
x8 : 00000000005e5789 x7 : ffff80008aab61dc x6 : 0000000000000000
x5 : 0000000000000000 x4 : 0000000000000001 x3 : 0000000000000000
x2 : 0000000000000006 x1 : 0000000000000080 x0 : ffff800125414000
Call trace:
  __daif_local_irq_enable arch/arm64/include/asm/irqflags.h:27 [inline]
  arch_local_irq_enable arch/arm64/include/asm/irqflags.h:49 [inline]
  __local_bh_enable_ip+0x228/0x44c kernel/softirq.c:386
  __raw_spin_unlock_bh include/linux/spinlock_api_smp.h:167 [inline]
  _raw_spin_unlock_bh+0x3c/0x4c kernel/locking/spinlock.c:210
  spin_unlock_bh include/linux/spinlock.h:396 [inline]
  batadv_purge_orig_ref+0x114c/0x1228 net/batman-adv/originator.c:1287
  batadv_purge_orig+0x20/0x70 net/batman-adv/originator.c:1300
  process_one_work+0x694/0x1204 kernel/workqueue.c:2633
  process_scheduled_works kernel/workqueue.c:2706 [inline]
  worker_thread+0x938/0xef4 kernel/workqueue.c:2787
  kthread+0x288/0x310 kernel/kthread.c:388
  ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:860
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 0 Comm: swapper/1 Not tainted 6.8.0-rc7-syzkaller-g707081b61156 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024
pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
 pc : arch_local_irq_enable+0x8/0xc arch/arm64/include/asm/irqflags.h:51
 lr : default_idle_call+0xf8/0x128 kernel/sched/idle.c:103
sp : ffff800093a17d30
x29: ffff800093a17d30 x28: dfff800000000000 x27: 1ffff00012742fb4
x26: ffff80008ec9d000 x25: 0000000000000000 x24: 0000000000000002
x23: 1ffff00011d93a74 x22: ffff80008ec9d3a0 x21: 0000000000000000
x20: ffff0000c19dbc00 x19: ffff8000802d0fd8 x18: 1fffe00036804396
x17: ffff80008ec9d000 x16: ffff8000802d089c x15: 0000000000000001
x14: 1fffe00036805f10 x13: 0000000000000000 x12: 0000000000000003
x11: 0000000000000001 x10: 0000000000000003 x9 : 0000000000000000
x8 : 00000000000ce8d1 x7 : ffff8000804609e4 x6 : 0000000000000000
x5 : 0000000000000001 x4 : 0000000000000001 x3 : ffff80008ad6aac0
x2 : 0000000000000000 x1 : ffff80008aedea60 x0 : ffff800125436000
Call trace:
  __daif_local_irq_enable arch/arm64/include/asm/irqflags.h:27 [inline]
  arch_local_irq_enable+0x8/0xc arch/arm64/include/asm/irqflags.h:49
  cpuidle_idle_call kernel/sched/idle.c:170 [inline]
  do_idle+0x1f0/0x4e8 kernel/sched/idle.c:312
  cpu_startup_entry+0x5c/0x74 kernel/sched/idle.c:410
  secondary_start_kernel+0x198/0x1c0 arch/arm64/kernel/smp.c:272
  __secondary_switched+0xb8/0xbc arch/arm64/kernel/head.S:404

The Linux kernel CVE team has assigned CVE-2024-40981 to this issue.

openEuler评分:(评分和向量)
5.5
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

受影响版本排查(受影响/不受影响):
1.openEuler-20.03-LTS-SP4:受影响
2.openEuler-22.03-LTS-SP1:受影响
3.openEuler-22.03-LTS-SP3:受影响
4.openEuler-22.03-LTS-SP4:不受影响
5.master(6.1.0):不受影响
6.openEuler-24.03-LTS:受影响
7.openEuler-24.03-LTS-Next:不受影响

修复是否涉及abi变化(是/否)：
1.openEuler-20.03-LTS-SP4:否
2.openEuler-22.03-LTS-SP1:否
3.openEuler-22.03-LTS-SP3:否
4.master(6.1.0):否
5.openEuler-24.03-LTS:否
6.openEuler-24.03-LTS-Next:否
7.openEuler-22.03-LTS-SP4:否

@ 经过 cve-manager 解析, 已分析的内容如下表所示:
| 状态  | 需分析 | 内容 |
|:--:|:--:|---------|
|已分析|1.影响性分析说明|In the Linux kernel, the following vulnerability has been resolved:batman-adv: bypass empty buckets in batadv_purge_orig_ref()Many syzbot reports are pointing to soft lockups inbatadv_purge_orig_ref() [1]Root cause is unknown, but we can avoid spending too muchtime there and perhaps get more interesting reports.[1]watchdog: BUG: soft lockup - CPU#0 stuck for 27s! [kworker/u4:6:621]Modules linked in:irq event stamp: 6182794 hardirqs last  enabled at (6182793): [&lt;ffff8000801dae10&gt;] __local_bh_enable_ip+0x224/0x44c kernel/softirq.c:386 hardirqs last disabled at (6182794): [&lt;ffff80008ad66a78&gt;] __el1_irq arch/arm64/kernel/entry-common.c:533 [inline] hardirqs last disabled at (6182794): [&lt;ffff80008ad66a78&gt;] el1_interrupt+0x24/0x68 arch/arm64/kernel/entry-common.c:551 softirqs last  enabled at (6182792): [&lt;ffff80008aab71c4&gt;] spin_unlock_bh include/linux/spinlock.h:396 [inline] softirqs last  enabled at (6182792): [&lt;ffff80008aab71c4&gt;] batadv_purge_orig_ref+0x114c/0x1228 net/batman-adv/originator.c:1287 softirqs last disabled at (6182790): [&lt;ffff80008aab61dc&gt;] spin_lock_bh include/linux/spinlock.h:356 [inline] softirqs last disabled at (6182790): [&lt;ffff80008aab61dc&gt;] batadv_purge_orig_ref+0x164/0x1228 net/batman-adv/originator.c:1271CPU: 0 PID: 621 Comm: kworker/u4:6 Not tainted 6.8.0-rc7-syzkaller-g707081b61156 #0Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024Workqueue: bat_events batadv_purge_origpstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : should_resched arch/arm64/include/asm/preempt.h:79 [inline] pc : __local_bh_enable_ip+0x228/0x44c kernel/softirq.c:388 lr : __local_bh_enable_ip+0x224/0x44c kernel/softirq.c:386sp : ffff800099007970x29: ffff800099007980 x28: 1fffe00018fce1bd x27: dfff800000000000x26: ffff0000d2620008 x25: ffff0000c7e70de8 x24: 0000000000000001x23: 1fffe00018e57781 x22: dfff800000000000 x21: ffff80008aab71c4x20: ffff0001b40136c0 x19: ffff0000c72bbc08 x18: 1fffe0001a817bb0x17: ffff800125414000 x16: ffff80008032116c x15: 0000000000000001x14: 1fffe0001ee9d610 x13: 0000000000000000 x12: 0000000000000003x11: 0000000000000000 x10: 0000000000ff0100 x9 : 0000000000000000x8 : 00000000005e5789 x7 : ffff80008aab61dc x6 : 0000000000000000x5 : 0000000000000000 x4 : 0000000000000001 x3 : 0000000000000000x2 : 0000000000000006 x1 : 0000000000000080 x0 : ffff800125414000Call trace:  __daif_local_irq_enable arch/arm64/include/asm/irqflags.h:27 [inline]  arch_local_irq_enable arch/arm64/include/asm/irqflags.h:49 [inline]  __local_bh_enable_ip+0x228/0x44c kernel/softirq.c:386  __raw_spin_unlock_bh include/linux/spinlock_api_smp.h:167 [inline]  _raw_spin_unlock_bh+0x3c/0x4c kernel/locking/spinlock.c:210  spin_unlock_bh include/linux/spinlock.h:396 [inline]  batadv_purge_orig_ref+0x114c/0x1228 net/batman-adv/originator.c:1287  batadv_purge_orig+0x20/0x70 net/batman-adv/originator.c:1300  process_one_work+0x694/0x1204 kernel/workqueue.c:2633  process_scheduled_works kernel/workqueue.c:2706 [inline]  worker_thread+0x938/0xef4 kernel/workqueue.c:2787  kthread+0x288/0x310 kernel/kthread.c:388  ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:860Sending NMI from CPU 0 to CPUs 1:NMI backtrace for cpu 1CPU: 1 PID: 0 Comm: swapper/1 Not tainted 6.8.0-rc7-syzkaller-g707081b61156 #0Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : arch_local_irq_enable+0x8/0xc arch/arm64/include/asm/irqflags.h:51 lr : default_idle_call+0xf8/0x128 kernel/sched/idle.c:103sp : ffff800093a17d30x29: ffff800093a17d30 x28: dfff800000000000 x27: 1ffff00012742fb4x26: ffff80008ec9d000 x25: 0000000000000000 x24: 0000000000000002x23: 1ffff00011d93a74 x22: ffff80008ec9d3a0 x21: 0000000000000000x20: ffff0000c19dbc00 x19: ffff8000802d0fd8 x18: 1fffe00036804396x17: ffff80008ec9d000 x16: ffff8000802d089c x15: 0000000000000001x14: 1fffe00036805f10 x13: 0000000000000000 x12: 0000000000000003x11: 0000000000000001 x10: 0000000000000003 x9 : 0000000000000000x8 : 00000000000ce8d1 x7 : ffff8000804609e4 x6 : 0000000000000000x5 : 0000000000000001 x4 : 0000000000000001 x3 : ffff80008ad6aac0x2 : 0000000000000000 x1 : ffff80008aedea60 x0 : ffff800125436000Call trace:  __daif_local_irq_enable arch/arm64/include/asm/irqflags.h:27 [inline]  arch_local_irq_enable+0x8/0xc arch/arm64/include/asm/irqflags.h:49  cpuidle_idle_call kernel/sched/idle.c:170 [inline]  do_idle+0x1f0/0x4e8 kernel/sched/idle.c:312  cpu_startup_entry+0x5c/0x74 kernel/sched/idle.c:410  secondary_start_kernel+0x198/0x1c0 arch/arm64/kernel/smp.c:272  __secondary_switched+0xb8/0xbc arch/arm64/kernel/head.S:404The Linux kernel CVE team has assigned CVE-2024-40981 to this issue.|
|已分析|2.openEulerScore|5.5|
|已分析|3.openEulerVector|AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H|
|已分析|4.受影响版本排查|openEuler-20.03-LTS-SP4:受影响,openEuler-22.03-LTS-SP1:受影响,openEuler-22.03-LTS-SP3:受影响,openEuler-24.03-LTS:受影响,openEuler-22.03-LTS-SP4:不受影响,master:不受影响,openEuler-24.03-LTS-Next:不受影响|
|已分析|5.修复是否涉及abi变化|openEuler-20.03-LTS-SP4:否,openEuler-22.03-LTS-SP1:否,openEuler-22.03-LTS-SP3:否,master:否,openEuler-24.03-LTS:否,openEuler-24.03-LTS-Next:否,openEuler-22.03-LTS-SP4:否|

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