CVE-2024-26611

一、漏洞信息
 漏洞编号：[CVE-2024-26611](https://nvd.nist.gov/vuln/detail/CVE-2024-26611)
 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
 CVSS V2.0分值：
  BaseScore：0.0 Low
  Vector：CVSS：2.0/
 漏洞简述：
  In the Linux kernel, the following vulnerability has been resolved:xsk: fix usage of multi-buffer BPF helpers for ZC XDPCurrently when packet is shrunk via bpf_xdp_adjust_tail() and memorytype is set to MEM_TYPE_XSK_BUFF_POOL, null ptr dereference happens:[1136314.192256] BUG: kernel NULL pointer dereference, address:0000000000000034[1136314.203943] #PF: supervisor read access in kernel mode[1136314.213768] #PF: error_code(0x0000) - not-present page[1136314.223550] PGD 0 P4D 0[1136314.230684] Oops: 0000 [#1] PREEMPT SMP NOPTI[1136314.239621] CPU: 8 PID: 54203 Comm: xdpsock Not tainted 6.6.0+ #257[1136314.250469] Hardware name: Intel Corporation S2600WFT/S2600WFT,BIOS SE5C620.86B.02.01.0008.031920191559 03/19/2019[1136314.265615] RIP: 0010:__xdp_return+0x6c/0x210[1136314.274653] Code: ad 00 48 8b 47 08 49 89 f8 a8 01 0f 85 9b 01 00 00 0f 1f 44 00 00 f0 41 ff 48 34 75 32 4c 89 c7 e9 79 cd 80 ff 83 fe 03 75 17 <f6> 41 34 01 0f 85 02 01 00 00 48 89 cf e9 22 cc 1e 00 e9 3d d2 86[1136314.302907] RSP: 0018:ffffc900089f8db0 EFLAGS: 00010246[1136314.312967] RAX: ffffc9003168aed0 RBX: ffff8881c3300000 RCX:0000000000000000[1136314.324953] RDX: 0000000000000000 RSI: 0000000000000003 RDI:ffffc9003168c000[1136314.336929] RBP: 0000000000000ae0 R08: 0000000000000002 R09:0000000000010000[1136314.348844] R10: ffffc9000e495000 R11: 0000000000000040 R12:0000000000000001[1136314.360706] R13: 0000000000000524 R14: ffffc9003168aec0 R15:0000000000000001[1136314.373298] FS:  00007f8df8bbcb80(0000) GS:ffff8897e0e00000(0000)knlGS:0000000000000000[1136314.386105] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033[1136314.396532] CR2: 0000000000000034 CR3: 00000001aa912002 CR4:00000000007706f0[1136314.408377] DR0: 0000000000000000 DR1: 0000000000000000 DR2:0000000000000000[1136314.420173] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7:0000000000000400[1136314.431890] PKRU: 55555554[1136314.439143] Call Trace:[1136314.446058]  <IRQ>[1136314.452465]  ? __die+0x20/0x70[1136314.459881]  ? page_fault_oops+0x15b/0x440[1136314.468305]  ? exc_page_fault+0x6a/0x150[1136314.476491]  ? asm_exc_page_fault+0x22/0x30[1136314.484927]  ? __xdp_return+0x6c/0x210[1136314.492863]  bpf_xdp_adjust_tail+0x155/0x1d0[1136314.501269]  bpf_prog_ccc47ae29d3b6570_xdp_sock_prog+0x15/0x60[1136314.511263]  ice_clean_rx_irq_zc+0x206/0xc60 [ice][1136314.520222]  ? ice_xmit_zc+0x6e/0x150 [ice][1136314.528506]  ice_napi_poll+0x467/0x670 [ice][1136314.536858]  ? ttwu_do_activate.constprop.0+0x8f/0x1a0[1136314.546010]  __napi_poll+0x29/0x1b0[1136314.553462]  net_rx_action+0x133/0x270[1136314.561619]  __do_softirq+0xbe/0x28e[1136314.569303]  do_softirq+0x3f/0x60This comes from __xdp_return() call with xdp_buff argument passed asNULL which is supposed to be consumed by xsk_buff_free() call.To address this properly, in ZC case, a node that represents the fragbeing removed has to be pulled out of xskb_list. Introduceappropriate xsk helpers to do such node operation and use themaccordingly within bpf_xdp_adjust_tail().
 漏洞公开时间：2024-03-12 02:15:19
 漏洞创建时间：2024-03-12 03:12:33
 漏洞详情参考链接：
  https://nvd.nist.gov/vuln/detail/CVE-2024-26611
<details>
<summary>更多参考(点击展开)</summary>

| 参考来源 | 参考链接 | 来源链接 |
| ------- | -------- | -------- |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/5cd781f7216f980207af09c5e0e1bb1eda284540 |  |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/82ee4781b8200e44669a354140d5c6bd966b8768 |  |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/c5114710c8ce86b8317e9b448f4fd15c711c2a82 |  |
| suse_bugzilla | http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2024-26611 | https://bugzilla.suse.com/show_bug.cgi?id=1221303 |
| suse_bugzilla | https://www.cve.org/CVERecord?id=CVE-2024-26611 | https://bugzilla.suse.com/show_bug.cgi?id=1221303 |
| suse_bugzilla | https://lore.kernel.org/linux-cve-announce/20240229155245.1571576-43-lee@kernel.org/ | https://bugzilla.suse.com/show_bug.cgi?id=1221303 |
| suse_bugzilla | https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=c5114710c8ce | https://bugzilla.suse.com/show_bug.cgi?id=1221303 |
| redhat_bugzilla | https://lore.kernel.org/linux-cve-announce/20240229155245.1571576-43-lee@kernel.org/T | https://bugzilla.redhat.com/show_bug.cgi?id=2269203 |
| debian |  | https://security-tracker.debian.org/tracker/CVE-2024-26611 |
| ubuntu | https://git.kernel.org/linus/c5114710c8ce86b8317e9b448f4fd15c711c2a82 (6.8-rc2) | https://ubuntu.com/security/CVE-2024-26611 |
| ubuntu | https://git.kernel.org/stable/c/82ee4781b8200e44669a354140d5c6bd966b8768 | https://ubuntu.com/security/CVE-2024-26611 |
| ubuntu | https://git.kernel.org/stable/c/5cd781f7216f980207af09c5e0e1bb1eda284540 | https://ubuntu.com/security/CVE-2024-26611 |
| ubuntu | https://git.kernel.org/stable/c/c5114710c8ce86b8317e9b448f4fd15c711c2a82 | https://ubuntu.com/security/CVE-2024-26611 |
| ubuntu | https://www.cve.org/CVERecord?id=CVE-2024-26611 | https://ubuntu.com/security/CVE-2024-26611 |
| ubuntu | https://nvd.nist.gov/vuln/detail/CVE-2024-26611 | https://ubuntu.com/security/CVE-2024-26611 |
| ubuntu | https://launchpad.net/bugs/cve/CVE-2024-26611 | https://ubuntu.com/security/CVE-2024-26611 |
| ubuntu | https://security-tracker.debian.org/tracker/CVE-2024-26611 | https://ubuntu.com/security/CVE-2024-26611 |
| ubuntu | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-26611 | https://ubuntu.com/security/CVE-2024-26611 |

</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:
  openBrain开源漏洞感知系统
 漏洞补丁信息：
  <details>
<summary>详情(点击展开)</summary>

| 影响的包 | 修复版本 | 修复补丁 | 问题引入补丁 | 来源  |
| ------- | -------- | ------- | -------- | --------- |
|  |  | https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=c5114710c8ce |  | suse_bugzilla |
| linux |  | https://git.kernel.org/linus/c5114710c8ce86b8317e9b448f4fd15c711c2a82 | https://git.kernel.org/linus/24ea50127ecf0efe819c1f6230add27abc6ca9d9 | ubuntu |

</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:xsk: fix usage of multi-buffer BPF helpers for ZC XDPCurrently when packet is shrunk via bpf_xdp_adjust_tail() and memorytype is set to MEM_TYPE_XSK_BUFF_POOL, null ptr dereference happens:[1136314.192256] BUG: kernel NULL pointer dereference, address:0000000000000034[1136314.203943] #PF: supervisor read access in kernel mode[1136314.213768] #PF: error_code(0x0000) - not-present page[1136314.223550] PGD 0 P4D 0[1136314.230684] Oops: 0000 [#1] PREEMPT SMP NOPTI[1136314.239621] CPU: 8 PID: 54203 Comm: xdpsock Not tainted 6.6.0+ #257[1136314.250469] Hardware name: Intel Corporation S2600WFT/S2600WFT,BIOS SE5C620.86B.02.01.0008.031920191559 03/19/2019[1136314.265615] RIP: 0010:__xdp_return+0x6c/0x210[1136314.274653] Code: ad 00 48 8b 47 08 49 89 f8 a8 01 0f 85 9b 01 00 00 0f 1f 44 00 00 f0 41 ff 48 34 75 32 4c 89 c7 e9 79 cd 80 ff 83 fe 03 75 17 <f6> 41 34 01 0f 85 02 01 00 00 48 89 cf e9 22 cc 1e 00 e9 3d d2 86[1136314.302907] RSP: 0018:ffffc900089f8db0 EFLAGS: 00010246[1136314.312967] RAX: ffffc9003168aed0 RBX: ffff8881c3300000 RCX:0000000000000000[1136314.324953] RDX: 0000000000000000 RSI: 0000000000000003 RDI:ffffc9003168c000[1136314.336929] RBP: 0000000000000ae0 R08: 0000000000000002 R09:0000000000010000[1136314.348844] R10: ffffc9000e495000 R11: 0000000000000040 R12:0000000000000001[1136314.360706] R13: 0000000000000524 R14: ffffc9003168aec0 R15:0000000000000001[1136314.373298] FS:  00007f8df8bbcb80(0000) GS:ffff8897e0e00000(0000)knlGS:0000000000000000[1136314.386105] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033[1136314.396532] CR2: 0000000000000034 CR3: 00000001aa912002 CR4:00000000007706f0[1136314.408377] DR0: 0000000000000000 DR1: 0000000000000000 DR2:0000000000000000[1136314.420173] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7:0000000000000400[1136314.431890] PKRU: 55555554[1136314.439143] Call Trace:[1136314.446058]  <IRQ>[1136314.452465]  ? __die+0x20/0x70[1136314.459881]  ? page_fault_oops+0x15b/0x440[1136314.468305]  ? exc_page_fault+0x6a/0x150[1136314.476491]  ? asm_exc_page_fault+0x22/0x30[1136314.484927]  ? __xdp_return+0x6c/0x210[1136314.492863]  bpf_xdp_adjust_tail+0x155/0x1d0[1136314.501269]  bpf_prog_ccc47ae29d3b6570_xdp_sock_prog+0x15/0x60[1136314.511263]  ice_clean_rx_irq_zc+0x206/0xc60 [ice][1136314.520222]  ? ice_xmit_zc+0x6e/0x150 [ice][1136314.528506]  ice_napi_poll+0x467/0x670 [ice][1136314.536858]  ? ttwu_do_activate.constprop.0+0x8f/0x1a0[1136314.546010]  __napi_poll+0x29/0x1b0[1136314.553462]  net_rx_action+0x133/0x270[1136314.561619]  __do_softirq+0xbe/0x28e[1136314.569303]  do_softirq+0x3f/0x60This comes from __xdp_return() call with xdp_buff argument passed asNULL which is supposed to be consumed by xsk_buff_free() call.To address this properly, in ZC case, a node that represents the fragbeing removed has to be pulled out of xskb_list. Introduceappropriate xsk helpers to do such node operation and use themaccordingly within bpf_xdp_adjust_tail().
 openEuler评分：
  5.5
 Vector：CVSS：3.0/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-SP1(4.19.90):不受影响
2.openEuler-20.03-LTS-SP4(4.19.90):不受影响
3.openEuler-22.03-LTS(5.10.0):不受影响
4.openEuler-22.03-LTS-SP1(5.10.0):不受影响
5.openEuler-22.03-LTS-SP2(5.10.0):不受影响
6.openEuler-22.03-LTS-SP3(5.10.0):不受影响
7.master(6.1.0):不受影响
8.openEuler-22.03-LTS-Next(5.10.0):不受影响
9.openEuler-24.03-LTS:不受影响
10.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-SP1(4.19.90):否
2.openEuler-20.03-LTS-SP4(4.19.90):否
3.openEuler-22.03-LTS(5.10.0):否
4.openEuler-22.03-LTS-SP1(5.10.0):否
5.openEuler-22.03-LTS-SP2(5.10.0):否
6.openEuler-22.03-LTS-SP3(5.10.0):否
7.master(6.1.0):否
8.openEuler-22.03-LTS-Next(5.10.0):否
9.openEuler-24.03-LTS:否
10.openEuler-24.03-LTS-Next:否

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.

@yangyingliang ,@gatieme ,@jiaoff ,@guohaocs2c ,@hanjun-guo ,@woqidaideshi ,@newbeats ,@zhangyi089 ,@colyli ,@thundertown ,@htforge ,@chiqijun ,@lengchao ,@zhujianwei001 ,@kylin-mayukun ,@wangxiongfeng ,@wkfxxx ,@SuperSix173 ,@jentlestea ,@oskernel0719 
**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-24.03-LTS:

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-24.03-LTS:

-----------------------------------------------------------------------
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-2024-26611	None	None	https://git.kernel.org/stable/c/c5114710c8ce86b8317e9b448f4fd15c711c2a82 https://git.kernel.org/stable/c/82ee4781b8200e44669a354140d5c6bd966b8768 https://git.kernel.org/stable/c/5cd781f7216f980207af09c5e0e1bb1eda284540
https://ubuntu.com/security/CVE-2024-26611	None	None	https://discourse.ubuntu.com/c/ubuntu-pro
https://www.opencve.io/cve/CVE-2024-26611	None	None	https://git.kernel.org/stable/c/c5114710c8ce86b8317e9b448f4fd15c711c2a82 https://git.kernel.org/stable/c/82ee4781b8200e44669a354140d5c6bd966b8768 https://git.kernel.org/stable/c/5cd781f7216f980207af09c5e0e1bb1eda284540
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2024-26611
https://security-tracker.debian.org/tracker/CVE-2024-26611	None	None	https://git.kernel.org/linus/c5114710c8ce86b8317e9b448f4fd15c711c2a82

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-2024-26611

影响性分析说明：
Reserved.

openEuler评分:(评分和向量)
4.0
CVSS: 3.0/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:N

CVE-2024-26611

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

xsk: fix usage of multi-buffer BPF helpers for ZC XDP

Currently when packet is shrunk via bpf_xdp_adjust_tail() and memory
type is set to MEM_TYPE_XSK_BUFF_POOL, null ptr dereference happens:

[1136314.192256] BUG: kernel NULL pointer dereference, address:
0000000000000034
[1136314.203943] #PF: supervisor read access in kernel mode
[1136314.213768] #PF: error_code(0x0000) - not-present page
[1136314.223550] PGD 0 P4D 0
[1136314.230684] Oops: 0000 [#1] PREEMPT SMP NOPTI
[1136314.239621] CPU: 8 PID: 54203 Comm: xdpsock Not tainted 6.6.0+ #257
[1136314.250469] Hardware name: Intel Corporation S2600WFT/S2600WFT,
BIOS SE5C620.86B.02.01.0008.031920191559 03/19/2019
[1136314.265615] RIP: 0010:__xdp_return+0x6c/0x210
[1136314.274653] Code: ad 00 48 8b 47 08 49 89 f8 a8 01 0f 85 9b 01 00 00 0f 1f 44 00 00 f0 41 ff 48 34 75 32 4c 89 c7 e9 79 cd 80 ff 83 fe 03 75 17 <f6> 41 34 01 0f 85 02 01 00 00 48 89 cf e9 22 cc 1e 00 e9 3d d2 86
[1136314.302907] RSP: 0018:ffffc900089f8db0 EFLAGS: 00010246
[1136314.312967] RAX: ffffc9003168aed0 RBX: ffff8881c3300000 RCX:
0000000000000000
[1136314.324953] RDX: 0000000000000000 RSI: 0000000000000003 RDI:
ffffc9003168c000
[1136314.336929] RBP: 0000000000000ae0 R08: 0000000000000002 R09:
0000000000010000
[1136314.348844] R10: ffffc9000e495000 R11: 0000000000000040 R12:
0000000000000001
[1136314.360706] R13: 0000000000000524 R14: ffffc9003168aec0 R15:
0000000000000001
[1136314.373298] FS:  00007f8df8bbcb80(0000) GS:ffff8897e0e00000(0000)
knlGS:0000000000000000
[1136314.386105] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[1136314.396532] CR2: 0000000000000034 CR3: 00000001aa912002 CR4:
00000000007706f0
[1136314.408377] DR0: 0000000000000000 DR1: 0000000000000000 DR2:
0000000000000000
[1136314.420173] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7:
0000000000000400
[1136314.431890] PKRU: 55555554
[1136314.439143] Call Trace:
[1136314.446058]  <IRQ>
[1136314.452465]  ? __die+0x20/0x70
[1136314.459881]  ? page_fault_oops+0x15b/0x440
[1136314.468305]  ? exc_page_fault+0x6a/0x150
[1136314.476491]  ? asm_exc_page_fault+0x22/0x30
[1136314.484927]  ? __xdp_return+0x6c/0x210
[1136314.492863]  bpf_xdp_adjust_tail+0x155/0x1d0
[1136314.501269]  bpf_prog_ccc47ae29d3b6570_xdp_sock_prog+0x15/0x60
[1136314.511263]  ice_clean_rx_irq_zc+0x206/0xc60 [ice]
[1136314.520222]  ? ice_xmit_zc+0x6e/0x150 [ice]
[1136314.528506]  ice_napi_poll+0x467/0x670 [ice]
[1136314.536858]  ? ttwu_do_activate.constprop.0+0x8f/0x1a0
[1136314.546010]  __napi_poll+0x29/0x1b0
[1136314.553462]  net_rx_action+0x133/0x270
[1136314.561619]  __do_softirq+0xbe/0x28e
[1136314.569303]  do_softirq+0x3f/0x60

This comes from __xdp_return() call with xdp_buff argument passed as
NULL which is supposed to be consumed by xsk_buff_free() call.

To address this properly, in ZC case, a node that represents the frag
being removed has to be pulled out of xskb_list. Introduce
appropriate xsk helpers to do such node operation and use them
accordingly within bpf_xdp_adjust_tail().

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-SP1:不受影响
2.openEuler-20.03-LTS-SP4:不受影响
3.openEuler-22.03-LTS:不受影响
4.openEuler-22.03-LTS-SP1:不受影响
5.openEuler-22.03-LTS-SP2:不受影响
6.openEuler-22.03-LTS-SP3:不受影响
7.master(6.1.0):不受影响
8.openEuler-22.03-LTS-Next:不受影响
9.openEuler-24.03-LTS:不受影响
10.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-SP1(4.19.90):否
2.openEuler-20.03-LTS-SP4:否
3.openEuler-22.03-LTS:否
4.openEuler-22.03-LTS-SP1:否
5.openEuler-22.03-LTS-SP2:否
6.openEuler-22.03-LTS-SP3:否
7.master(6.1.0):否
8.openEuler-22.03-LTS-Next:否
9.openEuler-24.03-LTS:否
10.openEuler-24.03-LTS-Next: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:xsk: fix usage of multi-buffer BPF helpers for ZC XDPCurrently when packet is shrunk via bpf_xdp_adjust_tail() and memorytype is set to MEM_TYPE_XSK_BUFF_POOL, null ptr dereference happens:[1136314.192256] BUG: kernel NULL pointer dereference, address:0000000000000034[1136314.203943] #PF: supervisor read access in kernel mode[1136314.213768] #PF: error_code(0x0000) - not-present page[1136314.223550] PGD 0 P4D 0[1136314.230684] Oops: 0000 [#1] PREEMPT SMP NOPTI[1136314.239621] CPU: 8 PID: 54203 Comm: xdpsock Not tainted 6.6.0+ #257[1136314.250469] Hardware name: Intel Corporation S2600WFT/S2600WFT,BIOS SE5C620.86B.02.01.0008.031920191559 03/19/2019[1136314.265615] RIP: 0010:__xdp_return+0x6c/0x210[1136314.274653] Code: ad 00 48 8b 47 08 49 89 f8 a8 01 0f 85 9b 01 00 00 0f 1f 44 00 00 f0 41 ff 48 34 75 32 4c 89 c7 e9 79 cd 80 ff 83 fe 03 75 17 <f6> 41 34 01 0f 85 02 01 00 00 48 89 cf e9 22 cc 1e 00 e9 3d d2 86[1136314.302907] RSP: 0018:ffffc900089f8db0 EFLAGS: 00010246[1136314.312967] RAX: ffffc9003168aed0 RBX: ffff8881c3300000 RCX:0000000000000000[1136314.324953] RDX: 0000000000000000 RSI: 0000000000000003 RDI:ffffc9003168c000[1136314.336929] RBP: 0000000000000ae0 R08: 0000000000000002 R09:0000000000010000[1136314.348844] R10: ffffc9000e495000 R11: 0000000000000040 R12:0000000000000001[1136314.360706] R13: 0000000000000524 R14: ffffc9003168aec0 R15:0000000000000001[1136314.373298] FS:  00007f8df8bbcb80(0000) GS:ffff8897e0e00000(0000)knlGS:0000000000000000[1136314.386105] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033[1136314.396532] CR2: 0000000000000034 CR3: 00000001aa912002 CR4:00000000007706f0[1136314.408377] DR0: 0000000000000000 DR1: 0000000000000000 DR2:0000000000000000[1136314.420173] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7:0000000000000400[1136314.431890] PKRU: 55555554[1136314.439143] Call Trace:[1136314.446058]  <IRQ>[1136314.452465]  ? __die+0x20/0x70[1136314.459881]  ? page_fault_oops+0x15b/0x440[1136314.468305]  ? exc_page_fault+0x6a/0x150[1136314.476491]  ? asm_exc_page_fault+0x22/0x30[1136314.484927]  ? __xdp_return+0x6c/0x210[1136314.492863]  bpf_xdp_adjust_tail+0x155/0x1d0[1136314.501269]  bpf_prog_ccc47ae29d3b6570_xdp_sock_prog+0x15/0x60[1136314.511263]  ice_clean_rx_irq_zc+0x206/0xc60 [ice][1136314.520222]  ? ice_xmit_zc+0x6e/0x150 [ice][1136314.528506]  ice_napi_poll+0x467/0x670 [ice][1136314.536858]  ? ttwu_do_activate.constprop.0+0x8f/0x1a0[1136314.546010]  __napi_poll+0x29/0x1b0[1136314.553462]  net_rx_action+0x133/0x270[1136314.561619]  __do_softirq+0xbe/0x28e[1136314.569303]  do_softirq+0x3f/0x60This comes from __xdp_return() call with xdp_buff argument passed asNULL which is supposed to be consumed by xsk_buff_free() call.To address this properly, in ZC case, a node that represents the fragbeing removed has to be pulled out of xskb_list. Introduceappropriate xsk helpers to do such node operation and use themaccordingly within bpf_xdp_adjust_tail().|
|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-SP1:不受影响,openEuler-20.03-LTS-SP4:不受影响,openEuler-22.03-LTS:不受影响,openEuler-22.03-LTS-SP1:不受影响,openEuler-22.03-LTS-SP2:不受影响,openEuler-22.03-LTS-SP3:不受影响,master:不受影响,openEuler-22.03-LTS-Next: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-SP1:否,openEuler-20.03-LTS-SP4:否,openEuler-22.03-LTS:否,openEuler-22.03-LTS-SP1:否,openEuler-22.03-LTS-SP2:否,openEuler-22.03-LTS-SP3:否,master:否,openEuler-22.03-LTS-Next:否,openEuler-24.03-LTS:否,openEuler-24.03-LTS-Next: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.**

src-openEuler/kernel

Content Risk Flag

Comments (7)

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

Content Risk Flag

CVE-2024-26611

Comments (7)

Search

src-openEuler/kernel