CVE-2024-26802— Linux kernel 安全漏洞
一分钟漏洞结论
影响对象
Linux Linux
利用判断
尚无明确在野利用证据，仍需结合暴露面评估
建议动作
优先检查厂商安全公告和参考链接中的修复版本；无法立即升级时，限制受影响服务暴露并加强监测。
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel 存在安全漏洞，该漏洞源于 stmmac 存在安全问题。
可能的 ATT&CK 技术 1 AI
T1499 · Endpoint Denial of Service影响版本矩阵 12
| 厂商 | 产品 | 版本范围 | 状态 |
|---|---|---|---|
| Linux | Linux | 5a5586112b929546e16029261a987c9197bfdfa2< 8e99556301172465c8fe33c7f78c39a3d4ce8462 |
affected |
5a5586112b929546e16029261a987c9197bfdfa2< 17ccd9798fe0beda3db212cfa3ebe373f605cbd6 |
affected | ||
5a5586112b929546e16029261a987c9197bfdfa2< 699b103e48ce32d03fc86c35b37ee8ae4288c7e3 |
affected | ||
5a5586112b929546e16029261a987c9197bfdfa2< f72cf22dccc94038cbbaa1029cb575bf52e5cbc8 |
affected | ||
5a5586112b929546e16029261a987c9197bfdfa2< 8af411bbba1f457c33734795f024d0ef26d0963f |
affected | ||
5.13 |
affected | ||
< 5.13 |
unaffected | ||
5.15.151≤ 5.15.* |
unaffected | ||
| … +4 条更多 | |||
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一、 漏洞 CVE-2024-26802 基础信息
漏洞信息
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Vulnerability Title
stmmac: Clear variable when destroying workqueue
来源: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved:
stmmac: Clear variable when destroying workqueue
Currently when suspending driver and stopping workqueue it is checked whether
workqueue is not NULL and if so, it is destroyed.
Function destroy_workqueue() does drain queue and does clear variable, but
it does not set workqueue variable to NULL. This can cause kernel/module
panic if code attempts to clear workqueue that was not initialized.
This scenario is possible when resuming suspended driver in stmmac_resume(),
because there is no handling for failed stmmac_hw_setup(),
which can fail and return if DMA engine has failed to initialize,
and workqueue is initialized after DMA engine.
Should DMA engine fail to initialize, resume will proceed normally,
but interface won't work and TX queue will eventually timeout,
causing 'Reset adapter' error.
This then does destroy workqueue during reset process.
And since workqueue is initialized after DMA engine and can be skipped,
it will cause kernel/module panic.
To secure against this possible crash, set workqueue variable to NULL when
destroying workqueue.
Log/backtrace from crash goes as follows:
[88.031977]------------[ cut here ]------------
[88.031985]NETDEV WATCHDOG: eth0 (sxgmac): transmit queue 1 timed out
[88.032017]WARNING: CPU: 0 PID: 0 at net/sched/sch_generic.c:477 dev_watchdog+0x390/0x398
<Skipping backtrace for watchdog timeout>
[88.032251]---[ end trace e70de432e4d5c2c0 ]---
[88.032282]sxgmac 16d88000.ethernet eth0: Reset adapter.
[88.036359]------------[ cut here ]------------
[88.036519]Call trace:
[88.036523] flush_workqueue+0x3e4/0x430
[88.036528] drain_workqueue+0xc4/0x160
[88.036533] destroy_workqueue+0x40/0x270
[88.036537] stmmac_fpe_stop_wq+0x4c/0x70
[88.036541] stmmac_release+0x278/0x280
[88.036546] __dev_close_many+0xcc/0x158
[88.036551] dev_close_many+0xbc/0x190
[88.036555] dev_close.part.0+0x70/0xc0
[88.036560] dev_close+0x24/0x30
[88.036564] stmmac_service_task+0x110/0x140
[88.036569] process_one_work+0x1d8/0x4a0
[88.036573] worker_thread+0x54/0x408
[88.036578] kthread+0x164/0x170
[88.036583] ret_from_fork+0x10/0x20
[88.036588]---[ end trace e70de432e4d5c2c1 ]---
[88.036597]Unable to handle kernel NULL pointer dereference at virtual address 0000000000000004
来源: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
来源: CVE Program / CVE List V5
Vulnerability Type
N/A
来源: CVE Program / CVE List V5
Vulnerability Title
Linux kernel 安全漏洞
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel 存在安全漏洞，该漏洞源于 stmmac 存在安全问题。
来源: 中国国家信息安全漏洞库 CNNVD
CVSS Information
N/A
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Type
N/A
来源: 中国国家信息安全漏洞库 CNNVD
受影响产品
二、漏洞 CVE-2024-26802 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
|---|
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CVE-2024-26802 补丁与修复 (1)
CVE-2024-26802 其他参考 (4)
同批安全公告 · Linux · 2024-04-04 · 共 32 条
| CVE-2024-26782 | 9.8 CRITICAL | Linux kernel 安全漏洞 |
| CVE-2024-26800 | 9.8 CRITICAL | Linux kernel 安全漏洞 |
| CVE-2024-26801 | 8.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-26792 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-26809 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-26808 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-26807 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-26804 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-26797 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-26795 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-26793 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-26789 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-26786 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-26799 | 7.0 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-26746 | Linux kernel 安全漏洞 | |
| CVE-2024-26788 | Linux kernel 安全漏洞 | |
| CVE-2024-26750 | Linux kernel 安全漏洞 | |
| CVE-2024-26780 | Linux kernel 安全漏洞 | |
| CVE-2024-26806 | Linux kernel 安全漏洞 | |
| CVE-2024-26805 | Linux kernel 安全漏洞 |
显示前 20 条，共 32 条。 查看全部 → →
IV. Related Vulnerabilities
V. Comments for CVE-2024-26802
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