CVE-2022-3521: Linux Kernel kcm kcmsock.c kcm_tx_work race condition

Severity: low (CVSS 2.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2022-10-16 · updated 2026-10-14
Weakness: CWE-362

Description

A vulnerability has been found in Linux Kernel and classified as problematic. This vulnerability affects the function kcm_tx_work of the file net/kcm/kcmsock.c of the component kcm. The manipulation leads to race condition. It is recommended to apply a patch to fix this issue. VDB-211018 is the identifier assigned to this vulnerability.

Affected products

Debian Linux: 10.0
Linux kernel: before 5.19; 5.19, 5.19-rc1, 5.19-rc2 — fixed in 5.19

How to fix

Upgrade to a fixed version: Linux kernel 5.19. Check the vendor advisory for mitigations.

References

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=ec7eede369fe5b0d085ac51fdbb95184f87bfc6c
https://lists.debian.org/debian-lts-announce/2022/12/msg00031.html
https://lists.debian.org/debian-lts-announce/2022/12/msg00034.html
https://vuldb.com/?id.211018
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=ec7eede369fe5b0d085ac51fdbb95184f87bfc6c
https://lists.debian.org/debian-lts-announce/2022/12/msg00031.html
https://lists.debian.org/debian-lts-announce/2022/12/msg00034.html
https://vuldb.com/?id.211018
https://cert-portal.siemens.com/productcert/html/ssa-794697.html

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