Race condition within a thread in Linux kernel - CVE-2022-49639
Published: February 26, 2025 / Updated: May 11, 2025
Vulnerability identifier: #VU104835
CSH Severity: Low
CVSS v4: 4.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2022-49639
CWE-ID: CWE-366
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to corrupt data.
The vulnerability exists due to a data race within the cipso_v4_cache_check(), cipso_v4_cache_add(), cipso_v4_gentag_rbm() and cipso_v4_validate() functions in net/ipv4/cipso_ipv4.c. A local user can corrupt data.
Affected software
Linux kernel
How to mitigate CVE-2022-49639
Install update from vendor's website.
Linux kernel - update to 5.10.132
External References
- https://git.kernel.org/stable/c/07b0caf8aeb9b82e6ecc6c292a3e47c7fcdb1148
- https://git.kernel.org/stable/c/0e41a0f73ccb9be112a80bde3804a771633caaef
- https://git.kernel.org/stable/c/2764f82bbc158d106693ae3ced3675cf4b963b35
- https://git.kernel.org/stable/c/59e26906b89cc35bb54476498772b45cbc32323f
- https://git.kernel.org/stable/c/c321e99d2725d11f7e6a4ebd9ce752259f0bae81
- https://git.kernel.org/stable/c/ca26ca5e2f3eeb3e6fe699cd6effa3b4b2aa8698
- https://git.kernel.org/stable/c/dd44f04b9214adb68ef5684ae87a81ba03632250
- https://git.kernel.org/stable/c/fe2a35fa2c4f9c8ce5ef970eb927031387f9446a
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.132