CVE-2021-47468

一、漏洞信息
漏洞编号：CVE-2021-47468
漏洞归属组件：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 V3.0分值：
BaseScore：0.0 None
Vector：CVSS：3.0/
漏洞简述：
In the Linux kernel, the following vulnerability has been resolved:isdn: mISDN: Fix sleeping function called from invalid contextThe driver can call card->isac.release() function from an atomiccontext.Fix this by calling this function after releasing the lock.The following log reveals it:[ 44.168226 ] BUG: sleeping function called from invalid context at kernel/workqueue.c:3018[ 44.168941 ] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 5475, name: modprobe[ 44.169574 ] INFO: lockdep is turned off.[ 44.169899 ] irq event stamp: 0[ 44.170160 ] hardirqs last enabled at (0): [<0000000000000000>] 0x0[ 44.170627 ] hardirqs last disabled at (0): [] copy_process+0x132d/0x3e00[ 44.171240 ] softirqs last enabled at (0): [] copy_process+0x135a/0x3e00[ 44.171852 ] softirqs last disabled at (0): [<0000000000000000>] 0x0[ 44.172318 ] Preemption disabled at:[ 44.172320 ] [] nj_release+0x69/0x500 [netjet][ 44.174441 ] Call Trace:[ 44.174630 ] dump_stack_lvl+0xa8/0xd1[ 44.174912 ] dump_stack+0x15/0x17[ 44.175166 ] ___might_sleep+0x3a2/0x510[ 44.175459 ] ? nj_release+0x69/0x500 [netjet][ 44.175791 ] __might_sleep+0x82/0xe0[ 44.176063 ] ? start_flush_work+0x20/0x7b0[ 44.176375 ] start_flush_work+0x33/0x7b0[ 44.176672 ] ? trace_irq_enable_rcuidle+0x85/0x170[ 44.177034 ] ? kasan_quarantine_put+0xaa/0x1f0[ 44.177372 ] ? kasan_quarantine_put+0xaa/0x1f0[ 44.177711 ] __flush_work+0x11a/0x1a0[ 44.177991 ] ? flush_work+0x20/0x20[ 44.178257 ] ? lock_release+0x13c/0x8f0[ 44.178550 ] ? __kasan_check_write+0x14/0x20[ 44.178872 ] ? do_raw_spin_lock+0x148/0x360[ 44.179187 ] ? read_lock_is_recursive+0x20/0x20[ 44.179530 ] ? __kasan_check_read+0x11/0x20[ 44.179846 ] ? do_raw_spin_unlock+0x55/0x900[ 44.180168 ] ? ____kasan_slab_free+0x116/0x140[ 44.180505 ] ? _raw_spin_unlock_irqrestore+0x41/0x60[ 44.180878 ] ? skb_queue_purge+0x1a3/0x1c0[ 44.181189 ] ? kfree+0x13e/0x290[ 44.181438 ] flush_work+0x17/0x20[ 44.181695 ] mISDN_freedchannel+0xe8/0x100[ 44.182006 ] isac_release+0x210/0x260 [mISDNipac][ 44.182366 ] nj_release+0xf6/0x500 [netjet][ 44.182685 ] nj_remove+0x48/0x70 [netjet][ 44.182989 ] pci_device_remove+0xa9/0x250
漏洞公开时间：2024-05-22 15:15:11
漏洞创建时间：2024-05-22 08:31:45
漏洞详情参考链接：
https://nvd.nist.gov/vuln/detail/CVE-2021-47468

更多参考(点击展开)

参考来源	参考链接	来源链接
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/37e4f57b22cc5ebb3f80cf0f74fdeb487f082367
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/4054b869dc263228d30a4755800b78f0f2ba0c89
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/6510e80a0b81b5d814e3aea6297ba42f5e76f73c
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/6f95c97e0f9d6eb39c3f2cb45e8fa4268d1b372b
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/9f591cbdbed3d7822b2bdba89b34a6d7b434317d
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/a5b34409d3fc52114c828be4adbc30744fa3258b
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/ef269a8808cb1759245a98a7fe16fceaebad894c
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/f5966ba53013149bcf94e1536644a958dd00a026
suse_bugzilla	http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2021-47468	https://bugzilla.suse.com/show_bug.cgi?id=1225346
suse_bugzilla	https://www.cve.org/CVERecord?id=CVE-2021-47468	https://bugzilla.suse.com/show_bug.cgi?id=1225346
suse_bugzilla	https://git.kernel.org/stable/c/37e4f57b22cc5ebb3f80cf0f74fdeb487f082367	https://bugzilla.suse.com/show_bug.cgi?id=1225346
suse_bugzilla	https://git.kernel.org/stable/c/4054b869dc263228d30a4755800b78f0f2ba0c89	https://bugzilla.suse.com/show_bug.cgi?id=1225346
suse_bugzilla	https://git.kernel.org/stable/c/6510e80a0b81b5d814e3aea6297ba42f5e76f73c	https://bugzilla.suse.com/show_bug.cgi?id=1225346
suse_bugzilla	https://git.kernel.org/stable/c/6f95c97e0f9d6eb39c3f2cb45e8fa4268d1b372b	https://bugzilla.suse.com/show_bug.cgi?id=1225346
suse_bugzilla	https://git.kernel.org/stable/c/9f591cbdbed3d7822b2bdba89b34a6d7b434317d	https://bugzilla.suse.com/show_bug.cgi?id=1225346
suse_bugzilla	https://git.kernel.org/stable/c/a5b34409d3fc52114c828be4adbc30744fa3258b	https://bugzilla.suse.com/show_bug.cgi?id=1225346
suse_bugzilla	https://git.kernel.org/stable/c/ef269a8808cb1759245a98a7fe16fceaebad894c	https://bugzilla.suse.com/show_bug.cgi?id=1225346
suse_bugzilla	https://git.kernel.org/stable/c/f5966ba53013149bcf94e1536644a958dd00a026	https://bugzilla.suse.com/show_bug.cgi?id=1225346
suse_bugzilla	https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2021/CVE-2021-47468.mbox	https://bugzilla.suse.com/show_bug.cgi?id=1225346
suse_bugzilla	https://bugzilla.redhat.com/show_bug.cgi?id=2282887	https://bugzilla.suse.com/show_bug.cgi?id=1225346
redhat_bugzilla	https://lore.kernel.org/linux-cve-announce/2024052227-CVE-2021-47468-6c1b@gregkh/T	https://bugzilla.redhat.com/show_bug.cgi?id=2282887
redhat_bugzilla	https://access.redhat.com/errata/RHSA-2024:5102	https://bugzilla.redhat.com/show_bug.cgi?id=2282887
redhat_bugzilla	https://access.redhat.com/errata/RHSA-2024:5101	https://bugzilla.redhat.com/show_bug.cgi?id=2282887
redhat_bugzilla	https://access.redhat.com/errata/RHSA-2024:5692	https://bugzilla.redhat.com/show_bug.cgi?id=2282887
ubuntu	https://www.cve.org/CVERecord?id=CVE-2021-47468	https://ubuntu.com/security/CVE-2021-47468
ubuntu	https://git.kernel.org/linus/6510e80a0b81b5d814e3aea6297ba42f5e76f73c (5.15-rc6)	https://ubuntu.com/security/CVE-2021-47468
ubuntu	https://git.kernel.org/stable/c/6f95c97e0f9d6eb39c3f2cb45e8fa4268d1b372b	https://ubuntu.com/security/CVE-2021-47468
ubuntu	https://git.kernel.org/stable/c/ef269a8808cb1759245a98a7fe16fceaebad894c	https://ubuntu.com/security/CVE-2021-47468
ubuntu	https://git.kernel.org/stable/c/37e4f57b22cc5ebb3f80cf0f74fdeb487f082367	https://ubuntu.com/security/CVE-2021-47468
ubuntu	https://git.kernel.org/stable/c/a5b34409d3fc52114c828be4adbc30744fa3258b	https://ubuntu.com/security/CVE-2021-47468
ubuntu	https://git.kernel.org/stable/c/4054b869dc263228d30a4755800b78f0f2ba0c89	https://ubuntu.com/security/CVE-2021-47468
ubuntu	https://git.kernel.org/stable/c/9f591cbdbed3d7822b2bdba89b34a6d7b434317d	https://ubuntu.com/security/CVE-2021-47468
ubuntu	https://git.kernel.org/stable/c/f5966ba53013149bcf94e1536644a958dd00a026	https://ubuntu.com/security/CVE-2021-47468
ubuntu	https://git.kernel.org/stable/c/6510e80a0b81b5d814e3aea6297ba42f5e76f73c	https://ubuntu.com/security/CVE-2021-47468
ubuntu	https://nvd.nist.gov/vuln/detail/CVE-2021-47468	https://ubuntu.com/security/CVE-2021-47468
ubuntu	https://launchpad.net/bugs/cve/CVE-2021-47468	https://ubuntu.com/security/CVE-2021-47468
ubuntu	https://security-tracker.debian.org/tracker/CVE-2021-47468	https://ubuntu.com/security/CVE-2021-47468
anolis		https://anas.openanolis.cn/cves/detail/CVE-2021-47468
cve_search		https://git.kernel.org/stable/c/6f95c97e0f9d6eb39c3f2cb45e8fa4268d1b372b
cve_search		https://git.kernel.org/stable/c/ef269a8808cb1759245a98a7fe16fceaebad894c
cve_search		https://git.kernel.org/stable/c/37e4f57b22cc5ebb3f80cf0f74fdeb487f082367
cve_search		https://git.kernel.org/stable/c/a5b34409d3fc52114c828be4adbc30744fa3258b
cve_search		https://git.kernel.org/stable/c/4054b869dc263228d30a4755800b78f0f2ba0c89
cve_search		https://git.kernel.org/stable/c/9f591cbdbed3d7822b2bdba89b34a6d7b434317d
cve_search		https://git.kernel.org/stable/c/f5966ba53013149bcf94e1536644a958dd00a026
cve_search		https://git.kernel.org/stable/c/6510e80a0b81b5d814e3aea6297ba42f5e76f73c

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:
openBrain开源漏洞感知系统
漏洞补丁信息：

详情(点击展开)

影响的包	修复版本	修复补丁	问题引入补丁	来源
linux		https://git.kernel.org/linus/6510e80a0b81b5d814e3aea6297ba42f5e76f73c	https://git.kernel.org/linus/1da177e4c3f41524e886b7f1b8a0c1fc7321cac2	ubuntu

二、漏洞分析结构反馈
影响性分析说明：
Reserved.
openEuler评分：
4.7
Vector：CVSS：3.0/AV:L/AC:H/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-SP3(5.10.0):不受影响
3.openEuler-22.03-LTS-SP4(5.10.0):不受影响
4.master(6.6.0):不受影响
5.openEuler-24.03-LTS(6.6.0):不受影响
6.openEuler-24.03-LTS-Next(6.6.0):不受影响
7.openEuler-24.03-LTS-SP1(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(6.6.0):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
8.openEuler-24.03-LTS-SP1(6.6.0):否

原因说明：
1.openEuler-20.03-LTS-SP4(4.19.90):正常修复
2.master(6.6.0):不受影响-漏洞代码不能被攻击者触发
3.openEuler-24.03-LTS-Next(6.6.0):不受影响-漏洞代码不能被攻击者触发
4.openEuler-22.03-LTS-SP3(5.10.0):不受影响-漏洞代码不存在
5.openEuler-22.03-LTS-SP4(5.10.0):不受影响-漏洞代码不存在
6.openEuler-24.03-LTS(6.6.0):不受影响-漏洞代码不存在
7.openEuler-24.03-LTS-SP1(6.6.0):不受影响-漏洞代码不存在

@yangyingliang ,@jiaoff ,@guohaocs2c ,@hanjun-guo ,@woqidaideshi ,@newbeats ,@zhangyi089 ,@colyli ,@thundertown ,@htforge ,@chiqijun ,@lengchao ,@zhujianwei001 ,@kylin-mayukun ,@wangxiongfeng ,@wkfxxx ,@SuperSix173 ,@jentlestea ,@oskernel0719 ,@gasonchen 
**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-SP1(4.19.90):
3.openEuler-20.03-LTS-SP4(4.19.90):
4.openEuler-22.03-LTS(5.10.0):
5.openEuler-22.03-LTS-Next(5.10.0):
6.openEuler-22.03-LTS-SP1(5.10.0):
7.openEuler-22.03-LTS-SP2(5.10.0):
8.openEuler-22.03-LTS-SP3(5.10.0):
9.openEuler-22.03-LTS-SP4:
10.openEuler-24.03-LTS:
11.openEuler-24.03-LTS-Next:

修复是否涉及abi变化(是/否)：
1.master(6.1.0):
2.openEuler-20.03-LTS-SP1(4.19.90):
3.openEuler-20.03-LTS-SP4(4.19.90):
4.openEuler-22.03-LTS(5.10.0):
5.openEuler-22.03-LTS-Next(5.10.0):
6.openEuler-22.03-LTS-SP1(5.10.0):
7.openEuler-22.03-LTS-SP2(5.10.0):
8.openEuler-22.03-LTS-SP3(5.10.0):
9.openEuler-22.03-LTS-SP4:
10.openEuler-24.03-LTS:
11.openEuler-24.03-LTS-Next:

-----------------------------------------------------------------------
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

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.

参考网址	关联pr	状态	补丁链接
https://nvd.nist.gov/vuln/detail/CVE-2021-47468	None	None	https://git.kernel.org/stable/c/f5966ba53013149bcf94e1536644a958dd00a026 https://git.kernel.org/stable/c/6f95c97e0f9d6eb39c3f2cb45e8fa4268d1b372b https://git.kernel.org/stable/c/37e4f57b22cc5ebb3f80cf0f74fdeb487f082367 https://git.kernel.org/stable/c/a5b34409d3fc52114c828be4adbc30744fa3258b https://git.kernel.org/stable/c/6510e80a0b81b5d814e3aea6297ba42f5e76f73c https://git.kernel.org/stable/c/9f591cbdbed3d7822b2bdba89b34a6d7b434317d https://git.kernel.org/stable/c/4054b869dc263228d30a4755800b78f0f2ba0c89 https://git.kernel.org/stable/c/ef269a8808cb1759245a98a7fe16fceaebad894c
https://www.opencve.io/cve/CVE-2021-47468	None	None	https://git.kernel.org/stable/c/f5966ba53013149bcf94e1536644a958dd00a026 https://git.kernel.org/stable/c/6f95c97e0f9d6eb39c3f2cb45e8fa4268d1b372b https://git.kernel.org/stable/c/37e4f57b22cc5ebb3f80cf0f74fdeb487f082367 https://git.kernel.org/stable/c/a5b34409d3fc52114c828be4adbc30744fa3258b https://git.kernel.org/stable/c/6510e80a0b81b5d814e3aea6297ba42f5e76f73c https://git.kernel.org/stable/c/9f591cbdbed3d7822b2bdba89b34a6d7b434317d https://git.kernel.org/stable/c/4054b869dc263228d30a4755800b78f0f2ba0c89 https://git.kernel.org/stable/c/ef269a8808cb1759245a98a7fe16fceaebad894c
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2021-47468
https://security-tracker.debian.org/tracker/CVE-2021-47468	None	None	https://git.kernel.org/linus/6510e80a0b81b5d814e3aea6297ba42f5e76f73c

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-2021-47468

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

isdn: mISDN: Fix sleeping function called from invalid context

The driver can call card->isac.release() function from an atomic
context.

Fix this by calling this function after releasing the lock.

The following log reveals it:

[ 44.168226 ] BUG: sleeping function called from invalid context at kernel/workqueue.c:3018
[ 44.168941 ] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 5475, name: modprobe
[ 44.169574 ] INFO: lockdep is turned off.
[ 44.169899 ] irq event stamp: 0
[ 44.170160 ] hardirqs last enabled at (0): [<0000000000000000>] 0x0
[ 44.170627 ] hardirqs last disabled at (0): [] copy_process+0x132d/0x3e00
[ 44.171240 ] softirqs last enabled at (0): [] copy_process+0x135a/0x3e00
[ 44.171852 ] softirqs last disabled at (0): [<0000000000000000>] 0x0
[ 44.172318 ] Preemption disabled at:
[ 44.172320 ] [] nj_release+0x69/0x500 [netjet]
[ 44.174441 ] Call Trace:
[ 44.174630 ] dump_stack_lvl+0xa8/0xd1
[ 44.174912 ] dump_stack+0x15/0x17
[ 44.175166 ] ___might_sleep+0x3a2/0x510
[ 44.175459 ] ? nj_release+0x69/0x500 [netjet]
[ 44.175791 ] __might_sleep+0x82/0xe0
[ 44.176063 ] ? start_flush_work+0x20/0x7b0
[ 44.176375 ] start_flush_work+0x33/0x7b0
[ 44.176672 ] ? trace_irq_enable_rcuidle+0x85/0x170
[ 44.177034 ] ? kasan_quarantine_put+0xaa/0x1f0
[ 44.177372 ] ? kasan_quarantine_put+0xaa/0x1f0
[ 44.177711 ] __flush_work+0x11a/0x1a0
[ 44.177991 ] ? flush_work+0x20/0x20
[ 44.178257 ] ? lock_release+0x13c/0x8f0
[ 44.178550 ] ? __kasan_check_write+0x14/0x20
[ 44.178872 ] ? do_raw_spin_lock+0x148/0x360
[ 44.179187 ] ? read_lock_is_recursive+0x20/0x20
[ 44.179530 ] ? __kasan_check_read+0x11/0x20
[ 44.179846 ] ? do_raw_spin_unlock+0x55/0x900
[ 44.180168 ] ? ____kasan_slab_free+0x116/0x140
[ 44.180505 ] ? _raw_spin_unlock_irqrestore+0x41/0x60
[ 44.180878 ] ? skb_queue_purge+0x1a3/0x1c0
[ 44.181189 ] ? kfree+0x13e/0x290
[ 44.181438 ] flush_work+0x17/0x20
[ 44.181695 ] mISDN_freedchannel+0xe8/0x100
[ 44.182006 ] isac_release+0x210/0x260 [mISDNipac]
[ 44.182366 ] nj_release+0xf6/0x500 [netjet]
[ 44.182685 ] nj_remove+0x48/0x70 [netjet]
[ 44.182989 ] pci_device_remove+0xa9/0x250

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

===========================================================

@sanglipeng 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:isdn: mISDN: Fix sleeping function called from invalid contextThe driver can call card->isac.release() function from an atomiccontext.Fix this by calling this function after releasing the lock.The following log reveals it:[   44.168226 ] BUG: sleeping function called from invalid context at kernel/workqueue.c:3018[   44.168941 ] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 5475, name: modprobe[   44.169574 ] INFO: lockdep is turned off.[   44.169899 ] irq event stamp: 0[   44.170160 ] hardirqs last  enabled at (0): [<0000000000000000>] 0x0[   44.170627 ] hardirqs last disabled at (0): [<ffffffff814209ed>] copy_process+0x132d/0x3e00[   44.171240 ] softirqs last  enabled at (0): [<ffffffff81420a1a>] copy_process+0x135a/0x3e00[   44.171852 ] softirqs last disabled at (0): [<0000000000000000>] 0x0[   44.172318 ] Preemption disabled at:[   44.172320 ] [<ffffffffa009b0a9>] nj_release+0x69/0x500 [netjet][   44.174441 ] Call Trace:[   44.174630 ]  dump_stack_lvl+0xa8/0xd1[   44.174912 ]  dump_stack+0x15/0x17[   44.175166 ]  ___might_sleep+0x3a2/0x510[   44.175459 ]  ? nj_release+0x69/0x500 [netjet][   44.175791 ]  __might_sleep+0x82/0xe0[   44.176063 ]  ? start_flush_work+0x20/0x7b0[   44.176375 ]  start_flush_work+0x33/0x7b0[   44.176672 ]  ? trace_irq_enable_rcuidle+0x85/0x170[   44.177034 ]  ? kasan_quarantine_put+0xaa/0x1f0[   44.177372 ]  ? kasan_quarantine_put+0xaa/0x1f0[   44.177711 ]  __flush_work+0x11a/0x1a0[   44.177991 ]  ? flush_work+0x20/0x20[   44.178257 ]  ? lock_release+0x13c/0x8f0[   44.178550 ]  ? __kasan_check_write+0x14/0x20[   44.178872 ]  ? do_raw_spin_lock+0x148/0x360[   44.179187 ]  ? read_lock_is_recursive+0x20/0x20[   44.179530 ]  ? __kasan_check_read+0x11/0x20[   44.179846 ]  ? do_raw_spin_unlock+0x55/0x900[   44.180168 ]  ? ____kasan_slab_free+0x116/0x140[   44.180505 ]  ? _raw_spin_unlock_irqrestore+0x41/0x60[   44.180878 ]  ? skb_queue_purge+0x1a3/0x1c0[   44.181189 ]  ? kfree+0x13e/0x290[   44.181438 ]  flush_work+0x17/0x20[   44.181695 ]  mISDN_freedchannel+0xe8/0x100[   44.182006 ]  isac_release+0x210/0x260 [mISDNipac][   44.182366 ]  nj_release+0xf6/0x500 [netjet][   44.182685 ]  nj_remove+0x48/0x70 [netjet][   44.182989 ]  pci_device_remove+0xa9/0x250|
|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-2021-47468

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

isdn: mISDN: Fix sleeping function called from invalid context

The driver can call card->isac.release() function from an atomic
context.

Fix this by calling this function after releasing the lock.

The following log reveals it:

[ 44.168226 ] BUG: sleeping function called from invalid context at kernel/workqueue.c:3018
[ 44.168941 ] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 5475, name: modprobe
[ 44.169574 ] INFO: lockdep is turned off.
[ 44.169899 ] irq event stamp: 0
[ 44.170160 ] hardirqs last enabled at (0): [<0000000000000000>] 0x0
[ 44.170627 ] hardirqs last disabled at (0): [] copy_process+0x132d/0x3e00
[ 44.171240 ] softirqs last enabled at (0): [] copy_process+0x135a/0x3e00
[ 44.171852 ] softirqs last disabled at (0): [<0000000000000000>] 0x0
[ 44.172318 ] Preemption disabled at:
[ 44.172320 ] [] nj_release+0x69/0x500 [netjet]
[ 44.174441 ] Call Trace:
[ 44.174630 ] dump_stack_lvl+0xa8/0xd1
[ 44.174912 ] dump_stack+0x15/0x17
[ 44.175166 ] ___might_sleep+0x3a2/0x510
[ 44.175459 ] ? nj_release+0x69/0x500 [netjet]
[ 44.175791 ] __might_sleep+0x82/0xe0
[ 44.176063 ] ? start_flush_work+0x20/0x7b0
[ 44.176375 ] start_flush_work+0x33/0x7b0
[ 44.176672 ] ? trace_irq_enable_rcuidle+0x85/0x170
[ 44.177034 ] ? kasan_quarantine_put+0xaa/0x1f0
[ 44.177372 ] ? kasan_quarantine_put+0xaa/0x1f0
[ 44.177711 ] __flush_work+0x11a/0x1a0
[ 44.177991 ] ? flush_work+0x20/0x20
[ 44.178257 ] ? lock_release+0x13c/0x8f0
[ 44.178550 ] ? __kasan_check_write+0x14/0x20
[ 44.178872 ] ? do_raw_spin_lock+0x148/0x360
[ 44.179187 ] ? read_lock_is_recursive+0x20/0x20
[ 44.179530 ] ? __kasan_check_read+0x11/0x20
[ 44.179846 ] ? do_raw_spin_unlock+0x55/0x900
[ 44.180168 ] ? ____kasan_slab_free+0x116/0x140
[ 44.180505 ] ? _raw_spin_unlock_irqrestore+0x41/0x60
[ 44.180878 ] ? skb_queue_purge+0x1a3/0x1c0
[ 44.181189 ] ? kfree+0x13e/0x290
[ 44.181438 ] flush_work+0x17/0x20
[ 44.181695 ] mISDN_freedchannel+0xe8/0x100
[ 44.182006 ] isac_release+0x210/0x260 [mISDNipac]
[ 44.182366 ] nj_release+0xf6/0x500 [netjet]
[ 44.182685 ] nj_remove+0x48/0x70 [netjet]
[ 44.182989 ] pci_device_remove+0xa9/0x250

openEuler评分:(评分和向量)
4.7
CVSS:3.1/AV:L/AC:H/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:不受影响
3.openEuler-22.03-LTS-SP3:不受影响
4.openEuler-22.03-LTS-SP4:不受影响
5.master(6.1.0):不受影响
6.openEuler-24.03-LTS:不受影响
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-2021-47468

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

isdn: mISDN: Fix sleeping function called from invalid context

The driver can call card->isac.release() function from an atomic
context.

Fix this by calling this function after releasing the lock.

The following log reveals it:

[ 44.168226 ] BUG: sleeping function called from invalid context at kernel/workqueue.c:3018
[ 44.168941 ] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 5475, name: modprobe
[ 44.169574 ] INFO: lockdep is turned off.
[ 44.169899 ] irq event stamp: 0
[ 44.170160 ] hardirqs last enabled at (0): [<0000000000000000>] 0x0
[ 44.170627 ] hardirqs last disabled at (0): [] copy_process+0x132d/0x3e00
[ 44.171240 ] softirqs last enabled at (0): [] copy_process+0x135a/0x3e00
[ 44.171852 ] softirqs last disabled at (0): [<0000000000000000>] 0x0
[ 44.172318 ] Preemption disabled at:
[ 44.172320 ] [] nj_release+0x69/0x500 [netjet]
[ 44.174441 ] Call Trace:
[ 44.174630 ] dump_stack_lvl+0xa8/0xd1
[ 44.174912 ] dump_stack+0x15/0x17
[ 44.175166 ] ___might_sleep+0x3a2/0x510
[ 44.175459 ] ? nj_release+0x69/0x500 [netjet]
[ 44.175791 ] __might_sleep+0x82/0xe0
[ 44.176063 ] ? start_flush_work+0x20/0x7b0
[ 44.176375 ] start_flush_work+0x33/0x7b0
[ 44.176672 ] ? trace_irq_enable_rcuidle+0x85/0x170
[ 44.177034 ] ? kasan_quarantine_put+0xaa/0x1f0
[ 44.177372 ] ? kasan_quarantine_put+0xaa/0x1f0
[ 44.177711 ] __flush_work+0x11a/0x1a0
[ 44.177991 ] ? flush_work+0x20/0x20
[ 44.178257 ] ? lock_release+0x13c/0x8f0
[ 44.178550 ] ? __kasan_check_write+0x14/0x20
[ 44.178872 ] ? do_raw_spin_lock+0x148/0x360
[ 44.179187 ] ? read_lock_is_recursive+0x20/0x20
[ 44.179530 ] ? __kasan_check_read+0x11/0x20
[ 44.179846 ] ? do_raw_spin_unlock+0x55/0x900
[ 44.180168 ] ? ____kasan_slab_free+0x116/0x140
[ 44.180505 ] ? _raw_spin_unlock_irqrestore+0x41/0x60
[ 44.180878 ] ? skb_queue_purge+0x1a3/0x1c0
[ 44.181189 ] ? kfree+0x13e/0x290
[ 44.181438 ] flush_work+0x17/0x20
[ 44.181695 ] mISDN_freedchannel+0xe8/0x100
[ 44.182006 ] isac_release+0x210/0x260 [mISDNipac]
[ 44.182366 ] nj_release+0xf6/0x500 [netjet]
[ 44.182685 ] nj_remove+0x48/0x70 [netjet]
[ 44.182989 ] pci_device_remove+0xa9/0x250

openEuler评分:(评分和向量)
4.7
CVSS:3.1/AV:L/AC:H/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:不受影响
3.openEuler-22.03-LTS-SP3:不受影响
4.openEuler-22.03-LTS-SP4:不受影响
5.master(6.1.0):不受影响
6.openEuler-24.03-LTS:不受影响
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

@sanglipeng 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:isdn: mISDN: Fix sleeping function called from invalid contextThe driver can call card->isac.release() function from an atomiccontext.Fix this by calling this function after releasing the lock.The following log reveals it:[   44.168226 ] BUG: sleeping function called from invalid context at kernel/workqueue.c:3018[   44.168941 ] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 5475, name: modprobe[   44.169574 ] INFO: lockdep is turned off.[   44.169899 ] irq event stamp: 0[   44.170160 ] hardirqs last  enabled at (0): [<0000000000000000>] 0x0[   44.170627 ] hardirqs last disabled at (0): [<ffffffff814209ed>] copy_process+0x132d/0x3e00[   44.171240 ] softirqs last  enabled at (0): [<ffffffff81420a1a>] copy_process+0x135a/0x3e00[   44.171852 ] softirqs last disabled at (0): [<0000000000000000>] 0x0[   44.172318 ] Preemption disabled at:[   44.172320 ] [<ffffffffa009b0a9>] nj_release+0x69/0x500 [netjet][   44.174441 ] Call Trace:[   44.174630 ]  dump_stack_lvl+0xa8/0xd1[   44.174912 ]  dump_stack+0x15/0x17[   44.175166 ]  ___might_sleep+0x3a2/0x510[   44.175459 ]  ? nj_release+0x69/0x500 [netjet][   44.175791 ]  __might_sleep+0x82/0xe0[   44.176063 ]  ? start_flush_work+0x20/0x7b0[   44.176375 ]  start_flush_work+0x33/0x7b0[   44.176672 ]  ? trace_irq_enable_rcuidle+0x85/0x170[   44.177034 ]  ? kasan_quarantine_put+0xaa/0x1f0[   44.177372 ]  ? kasan_quarantine_put+0xaa/0x1f0[   44.177711 ]  __flush_work+0x11a/0x1a0[   44.177991 ]  ? flush_work+0x20/0x20[   44.178257 ]  ? lock_release+0x13c/0x8f0[   44.178550 ]  ? __kasan_check_write+0x14/0x20[   44.178872 ]  ? do_raw_spin_lock+0x148/0x360[   44.179187 ]  ? read_lock_is_recursive+0x20/0x20[   44.179530 ]  ? __kasan_check_read+0x11/0x20[   44.179846 ]  ? do_raw_spin_unlock+0x55/0x900[   44.180168 ]  ? ____kasan_slab_free+0x116/0x140[   44.180505 ]  ? _raw_spin_unlock_irqrestore+0x41/0x60[   44.180878 ]  ? skb_queue_purge+0x1a3/0x1c0[   44.181189 ]  ? kfree+0x13e/0x290[   44.181438 ]  flush_work+0x17/0x20[   44.181695 ]  mISDN_freedchannel+0xe8/0x100[   44.182006 ]  isac_release+0x210/0x260 [mISDNipac][   44.182366 ]  nj_release+0xf6/0x500 [netjet][   44.182685 ]  nj_remove+0x48/0x70 [netjet][   44.182989 ]  pci_device_remove+0xa9/0x250|
|已分析|2.openEulerScore|4.7|
|已分析|3.openEulerVector|AV:L/AC:H/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:不受影响,openEuler-22.03-LTS-SP3:不受影响,openEuler-22.03-LTS-SP4:不受影响,master:不受影响,openEuler-24.03-LTS: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-2021-47468

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

isdn: mISDN: Fix sleeping function called from invalid context

The driver can call card->isac.release() function from an atomic
context.

Fix this by calling this function after releasing the lock.

The following log reveals it:

[ 44.168226 ] BUG: sleeping function called from invalid context at kernel/workqueue.c:3018
[ 44.168941 ] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 5475, name: modprobe
[ 44.169574 ] INFO: lockdep is turned off.
[ 44.169899 ] irq event stamp: 0
[ 44.170160 ] hardirqs last enabled at (0): [<0000000000000000>] 0x0
[ 44.170627 ] hardirqs last disabled at (0): [] copy_process+0x132d/0x3e00
[ 44.171240 ] softirqs last enabled at (0): [] copy_process+0x135a/0x3e00
[ 44.171852 ] softirqs last disabled at (0): [<0000000000000000>] 0x0
[ 44.172318 ] Preemption disabled at:
[ 44.172320 ] [] nj_release+0x69/0x500 [netjet]
[ 44.174441 ] Call Trace:
[ 44.174630 ] dump_stack_lvl+0xa8/0xd1
[ 44.174912 ] dump_stack+0x15/0x17
[ 44.175166 ] ___might_sleep+0x3a2/0x510
[ 44.175459 ] ? nj_release+0x69/0x500 [netjet]
[ 44.175791 ] __might_sleep+0x82/0xe0
[ 44.176063 ] ? start_flush_work+0x20/0x7b0
[ 44.176375 ] start_flush_work+0x33/0x7b0
[ 44.176672 ] ? trace_irq_enable_rcuidle+0x85/0x170
[ 44.177034 ] ? kasan_quarantine_put+0xaa/0x1f0
[ 44.177372 ] ? kasan_quarantine_put+0xaa/0x1f0
[ 44.177711 ] __flush_work+0x11a/0x1a0
[ 44.177991 ] ? flush_work+0x20/0x20
[ 44.178257 ] ? lock_release+0x13c/0x8f0
[ 44.178550 ] ? __kasan_check_write+0x14/0x20
[ 44.178872 ] ? do_raw_spin_lock+0x148/0x360
[ 44.179187 ] ? read_lock_is_recursive+0x20/0x20
[ 44.179530 ] ? __kasan_check_read+0x11/0x20
[ 44.179846 ] ? do_raw_spin_unlock+0x55/0x900
[ 44.180168 ] ? ____kasan_slab_free+0x116/0x140
[ 44.180505 ] ? _raw_spin_unlock_irqrestore+0x41/0x60
[ 44.180878 ] ? skb_queue_purge+0x1a3/0x1c0
[ 44.181189 ] ? kfree+0x13e/0x290
[ 44.181438 ] flush_work+0x17/0x20
[ 44.181695 ] mISDN_freedchannel+0xe8/0x100
[ 44.182006 ] isac_release+0x210/0x260 [mISDNipac]
[ 44.182366 ] nj_release+0xf6/0x500 [netjet]
[ 44.182685 ] nj_remove+0x48/0x70 [netjet]
[ 44.182989 ] pci_device_remove+0xa9/0x250

openEuler评分:(评分和向量)
4.7
CVSS:3.1/AV:L/AC:H/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:不受影响
3.openEuler-22.03-LTS-SP3:不受影响
4.openEuler-22.03-LTS-SP4:不受影响
5.master(6.1.0):不受影响
6.openEuler-24.03-LTS:不受影响
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

@sanglipeng 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:isdn: mISDN: Fix sleeping function called from invalid contextThe driver can call card->isac.release() function from an atomiccontext.Fix this by calling this function after releasing the lock.The following log reveals it:[   44.168226 ] BUG: sleeping function called from invalid context at kernel/workqueue.c:3018[   44.168941 ] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 5475, name: modprobe[   44.169574 ] INFO: lockdep is turned off.[   44.169899 ] irq event stamp: 0[   44.170160 ] hardirqs last  enabled at (0): [<0000000000000000>] 0x0[   44.170627 ] hardirqs last disabled at (0): [<ffffffff814209ed>] copy_process+0x132d/0x3e00[   44.171240 ] softirqs last  enabled at (0): [<ffffffff81420a1a>] copy_process+0x135a/0x3e00[   44.171852 ] softirqs last disabled at (0): [<0000000000000000>] 0x0[   44.172318 ] Preemption disabled at:[   44.172320 ] [<ffffffffa009b0a9>] nj_release+0x69/0x500 [netjet][   44.174441 ] Call Trace:[   44.174630 ]  dump_stack_lvl+0xa8/0xd1[   44.174912 ]  dump_stack+0x15/0x17[   44.175166 ]  ___might_sleep+0x3a2/0x510[   44.175459 ]  ? nj_release+0x69/0x500 [netjet][   44.175791 ]  __might_sleep+0x82/0xe0[   44.176063 ]  ? start_flush_work+0x20/0x7b0[   44.176375 ]  start_flush_work+0x33/0x7b0[   44.176672 ]  ? trace_irq_enable_rcuidle+0x85/0x170[   44.177034 ]  ? kasan_quarantine_put+0xaa/0x1f0[   44.177372 ]  ? kasan_quarantine_put+0xaa/0x1f0[   44.177711 ]  __flush_work+0x11a/0x1a0[   44.177991 ]  ? flush_work+0x20/0x20[   44.178257 ]  ? lock_release+0x13c/0x8f0[   44.178550 ]  ? __kasan_check_write+0x14/0x20[   44.178872 ]  ? do_raw_spin_lock+0x148/0x360[   44.179187 ]  ? read_lock_is_recursive+0x20/0x20[   44.179530 ]  ? __kasan_check_read+0x11/0x20[   44.179846 ]  ? do_raw_spin_unlock+0x55/0x900[   44.180168 ]  ? ____kasan_slab_free+0x116/0x140[   44.180505 ]  ? _raw_spin_unlock_irqrestore+0x41/0x60[   44.180878 ]  ? skb_queue_purge+0x1a3/0x1c0[   44.181189 ]  ? kfree+0x13e/0x290[   44.181438 ]  flush_work+0x17/0x20[   44.181695 ]  mISDN_freedchannel+0xe8/0x100[   44.182006 ]  isac_release+0x210/0x260 [mISDNipac][   44.182366 ]  nj_release+0xf6/0x500 [netjet][   44.182685 ]  nj_remove+0x48/0x70 [netjet][   44.182989 ]  pci_device_remove+0xa9/0x250|
|已分析|2.openEulerScore|4.7|
|已分析|3.openEulerVector|AV:L/AC:H/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:不受影响,openEuler-22.03-LTS-SP3:不受影响,openEuler-22.03-LTS-SP4:不受影响,master:不受影响,openEuler-24.03-LTS: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.**

@sanglipeng 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:isdn: mISDN: Fix sleeping function called from invalid contextThe driver can call card->isac.release() function from an atomiccontext.Fix this by calling this function after releasing the lock.The following log reveals it:[   44.168226 ] BUG: sleeping function called from invalid context at kernel/workqueue.c:3018[   44.168941 ] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 5475, name: modprobe[   44.169574 ] INFO: lockdep is turned off.[   44.169899 ] irq event stamp: 0[   44.170160 ] hardirqs last  enabled at (0): [<0000000000000000>] 0x0[   44.170627 ] hardirqs last disabled at (0): [<ffffffff814209ed>] copy_process+0x132d/0x3e00[   44.171240 ] softirqs last  enabled at (0): [<ffffffff81420a1a>] copy_process+0x135a/0x3e00[   44.171852 ] softirqs last disabled at (0): [<0000000000000000>] 0x0[   44.172318 ] Preemption disabled at:[   44.172320 ] [<ffffffffa009b0a9>] nj_release+0x69/0x500 [netjet][   44.174441 ] Call Trace:[   44.174630 ]  dump_stack_lvl+0xa8/0xd1[   44.174912 ]  dump_stack+0x15/0x17[   44.175166 ]  ___might_sleep+0x3a2/0x510[   44.175459 ]  ? nj_release+0x69/0x500 [netjet][   44.175791 ]  __might_sleep+0x82/0xe0[   44.176063 ]  ? start_flush_work+0x20/0x7b0[   44.176375 ]  start_flush_work+0x33/0x7b0[   44.176672 ]  ? trace_irq_enable_rcuidle+0x85/0x170[   44.177034 ]  ? kasan_quarantine_put+0xaa/0x1f0[   44.177372 ]  ? kasan_quarantine_put+0xaa/0x1f0[   44.177711 ]  __flush_work+0x11a/0x1a0[   44.177991 ]  ? flush_work+0x20/0x20[   44.178257 ]  ? lock_release+0x13c/0x8f0[   44.178550 ]  ? __kasan_check_write+0x14/0x20[   44.178872 ]  ? do_raw_spin_lock+0x148/0x360[   44.179187 ]  ? read_lock_is_recursive+0x20/0x20[   44.179530 ]  ? __kasan_check_read+0x11/0x20[   44.179846 ]  ? do_raw_spin_unlock+0x55/0x900[   44.180168 ]  ? ____kasan_slab_free+0x116/0x140[   44.180505 ]  ? _raw_spin_unlock_irqrestore+0x41/0x60[   44.180878 ]  ? skb_queue_purge+0x1a3/0x1c0[   44.181189 ]  ? kfree+0x13e/0x290[   44.181438 ]  flush_work+0x17/0x20[   44.181695 ]  mISDN_freedchannel+0xe8/0x100[   44.182006 ]  isac_release+0x210/0x260 [mISDNipac][   44.182366 ]  nj_release+0xf6/0x500 [netjet][   44.182685 ]  nj_remove+0x48/0x70 [netjet][   44.182989 ]  pci_device_remove+0xa9/0x250|
|已分析|2.openEulerScore|4.7|
|已分析|3.openEulerVector|AV:L/AC:H/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:不受影响,openEuler-22.03-LTS-SP3:不受影响,openEuler-22.03-LTS-SP4:不受影响,master:不受影响,openEuler-24.03-LTS: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-2021-47468

影响性分析说明：
Reserved.

openEuler评分:(评分和向量)
3.9
CVSS: 3.1/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-SP3:不受影响
3.openEuler-22.03-LTS-SP4:不受影响
4.master(6.6.0):不受影响
5.openEuler-24.03-LTS:不受影响
6.openEuler-24.03-LTS-Next:不受影响
7.openEuler-24.03-LTS-SP1:不受影响

原因说明:
1.openEuler-20.03-LTS-SP4:正常修复
2.openEuler-22.03-LTS-SP3:不受影响-漏洞代码不存在
3.openEuler-22.03-LTS-SP4:不受影响-漏洞代码不存在
4.master(6.6.0):不受影响-漏洞代码不能被攻击者触发
5.openEuler-24.03-LTS:不受影响-漏洞代码不存在
6.openEuler-24.03-LTS-Next:不受影响-漏洞代码不能被攻击者触发
7.openEuler-24.03-LTS-SP1:不受影响-漏洞代码不存在

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(23.08.5):否
5.openEuler-24.03-LTS:否
6.openEuler-24.03-LTS-Next:否
7.openEuler-22.03-LTS-SP4:否
8.openEuler-24.03-LTS-SP1:否

===========================================================

CVE-2021-47468

openEuler评分:(评分和向量)
4.7
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

src-openEuler/kernel

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src-openEuler/kernel .gitee-modal { width: 500px !important; }

内容风险标识

CVE-2021-47468

评论 (21)

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