CVE-2024-35910— 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，该漏洞源于未正确终止内核套接字的计时器。
影响版本矩阵 18
| 厂商 | 产品 | 版本范围 | 状态 |
|---|---|---|---|
| Linux | Linux | 26abe14379f8e2fa3fd1bcf97c9a7ad9364886fe< 93f0133b9d589cc6e865f254ad9be3e9d8133f50 |
affected |
26abe14379f8e2fa3fd1bcf97c9a7ad9364886fe< 44e62f5d35678686734afd47c6a421ad30772e7f |
affected | ||
26abe14379f8e2fa3fd1bcf97c9a7ad9364886fe< e3e27d2b446deb1f643758a0c4731f5c22492810 |
affected | ||
26abe14379f8e2fa3fd1bcf97c9a7ad9364886fe< 2e43d8eba6edd1cf05a3a20fdd77688fa7ec16a4 |
affected | ||
26abe14379f8e2fa3fd1bcf97c9a7ad9364886fe< 91b243de910a9ac8476d40238ab3dbfeedd5b7de |
affected | ||
26abe14379f8e2fa3fd1bcf97c9a7ad9364886fe< c1ae4d1e76eacddaacb958b67cd942082f800c87 |
affected | ||
26abe14379f8e2fa3fd1bcf97c9a7ad9364886fe< 899265c1389fe022802aae73dbf13ee08837a35a |
affected | ||
26abe14379f8e2fa3fd1bcf97c9a7ad9364886fe< 151c9c724d05d5b0dd8acd3e11cb69ef1f2dbada |
affected | ||
| … +10 条更多 | |||
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一、 漏洞 CVE-2024-35910 基础信息
漏洞信息
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Vulnerability Title
tcp: properly terminate timers for kernel sockets
来源: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved:
tcp: properly terminate timers for kernel sockets
We had various syzbot reports about tcp timers firing after
the corresponding netns has been dismantled.
Fortunately Josef Bacik could trigger the issue more often,
and could test a patch I wrote two years ago.
When TCP sockets are closed, we call inet_csk_clear_xmit_timers()
to 'stop' the timers.
inet_csk_clear_xmit_timers() can be called from any context,
including when socket lock is held.
This is the reason it uses sk_stop_timer(), aka del_timer().
This means that ongoing timers might finish much later.
For user sockets, this is fine because each running timer
holds a reference on the socket, and the user socket holds
a reference on the netns.
For kernel sockets, we risk that the netns is freed before
timer can complete, because kernel sockets do not hold
reference on the netns.
This patch adds inet_csk_clear_xmit_timers_sync() function
that using sk_stop_timer_sync() to make sure all timers
are terminated before the kernel socket is released.
Modules using kernel sockets close them in their netns exit()
handler.
Also add sock_not_owned_by_me() helper to get LOCKDEP
support : inet_csk_clear_xmit_timers_sync() must not be called
while socket lock is held.
It is very possible we can revert in the future commit
3a58f13a881e ("net: rds: acquire refcount on TCP sockets")
which attempted to solve the issue in rds only.
(net/smc/af_smc.c and net/mptcp/subflow.c have similar code)
We probably can remove the check_net() tests from
tcp_out_of_resources() and __tcp_close() in the future.
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，该漏洞源于未正确终止内核套接字的计时器。
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-2024-35910 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
|---|
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CVE-2024-35910 邮件列表归档 (2)
CVE-2024-35910 其他参考 (7)
同批安全公告 · Linux · 2024-05-19 · 共 82 条
| CVE-2024-35884 | 9.8 CRITICAL | Linux kernel 安全漏洞 |
| CVE-2024-35864 | 9.8 CRITICAL | Linux kernel 安全漏洞 |
| CVE-2024-35862 | 9.8 CRITICAL | Linux kernel 安全漏洞 |
| CVE-2024-35863 | 9.8 CRITICAL | Linux kernel 安全漏洞 |
| CVE-2024-35865 | 9.8 CRITICAL | Linux kernel 安全漏洞 |
| CVE-2024-35869 | 9.8 CRITICAL | Linux kernel 安全漏洞 |
| CVE-2024-35870 | 9.8 CRITICAL | Linux kernel 安全漏洞 |
| CVE-2024-35861 | 9.8 CRITICAL | Linux kernel 安全漏洞 |
| CVE-2024-35939 | 9.3 CRITICAL | Linux kernel 安全漏洞 |
| CVE-2024-35915 | 8.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-35887 | 8.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-35889 | 8.6 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-35875 | 8.4 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-35937 | 8.1 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-35897 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-35920 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-35890 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-35905 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-35919 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-35921 | 7.8 HIGH | Linux kernel 安全漏洞 |
显示前 20 条，共 82 条。 查看全部 → →
IV. Related Vulnerabilities
V. Comments for CVE-2024-35910
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