CVE-2023-53426— 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xsk_diag接口在套接字清理期间存在释放后重用错误。
可能的 ATT&CK 技术 1 AI
T1083 · File and Directory Discovery影响版本矩阵 15
| 厂商 | 产品 | 版本范围 | 状态 |
|---|---|---|---|
| Linux | Linux | ad7219cd8751bd258b9d1e69ae0654ec00f71875< 5979985f2d6b565b6cf0f79a62670a2855c0e96c |
affected |
18b1ab7aa76bde181bdb1ab19a87fa9523c32f21< 6436973164ea5506a495f39e56be5aea375e7832 |
affected | ||
18b1ab7aa76bde181bdb1ab19a87fa9523c32f21< 595931912357fa3507e522a7f8a0a76e423c23e4 |
affected | ||
18b1ab7aa76bde181bdb1ab19a87fa9523c32f21< 3e019d8a05a38abb5c85d4f1e85fda964610aa14 |
affected | ||
d1579253ffce39986e7a6ab757ac93b2680a665f |
affected | ||
8a2dea162b92c322f3e42eae0c4a74b8d20aa7a9 |
affected | ||
5.15.33< 5.15.132 |
affected | ||
5.16.19< 5.17 |
affected | ||
| … +7 条更多 | |||
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一、 漏洞 CVE-2023-53426 基础信息
漏洞信息
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Vulnerability Title
xsk: Fix xsk_diag use-after-free error during socket cleanup
来源: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved:
xsk: Fix xsk_diag use-after-free error during socket cleanup
Fix a use-after-free error that is possible if the xsk_diag interface
is used after the socket has been unbound from the device. This can
happen either due to the socket being closed or the device
disappearing. In the early days of AF_XDP, the way we tested that a
socket was not bound to a device was to simply check if the netdevice
pointer in the xsk socket structure was NULL. Later, a better system
was introduced by having an explicit state variable in the xsk socket
struct. For example, the state of a socket that is on the way to being
closed and has been unbound from the device is XSK_UNBOUND.
The commit in the Fixes tag below deleted the old way of signalling
that a socket is unbound, setting dev to NULL. This in the belief that
all code using the old way had been exterminated. That was
unfortunately not true as the xsk diagnostics code was still using the
old way and thus does not work as intended when a socket is going
down. Fix this by introducing a test against the state variable. If
the socket is in the state XSK_UNBOUND, simply abort the diagnostic's
netlink operation.
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xsk_diag接口在套接字清理期间存在释放后重用错误。
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-2023-53426 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
|---|
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同批安全公告 · Linux · 2025-09-18 · 共 121 条
| CVE-2022-50410 | 9.8 CRITICAL | Linux kernel 安全漏洞 |
| CVE-2022-50401 | 9.8 CRITICAL | Linux kernel 安全漏洞 |
| CVE-2023-53382 | 9.8 CRITICAL | Linux kernel 安全漏洞 |
| CVE-2022-50413 | 8.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2023-53431 | 8.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2023-53432 | 8.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2023-53374 | 8.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2022-50386 | 8.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2022-50419 | 8.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2023-53372 | 8.2 HIGH | Linux kernel 安全漏洞 |
| CVE-2023-53387 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2022-50417 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2023-53394 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2023-53429 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2023-53373 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2023-53378 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2023-53398 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2023-53388 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2022-50399 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2023-53386 | 7.8 HIGH | Linux kernel 安全漏洞 |
显示前 20 条，共 121 条。 查看全部 → →
IV. Related Vulnerabilities
V. Comments for CVE-2023-53426
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