SB20250226285 - Use-after-free in Linux kernel sound
Published: February 26, 2025 Updated: May 11, 2025
Security Bulletin ID
SB20250226285
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Use-after-free (CVE-ID: CVE-2022-49291)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the snd_pcm_hw_params_choose(), snd_pcm_hw_params() and do_hw_free() functions in sound/core/pcm_native.c, within the snd_pcm_attach_substream() and snd_pcm_detach_substream() functions in sound/core/pcm.c. A local user can escalate privileges on the system.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/0090c13cbbdffd7da079ac56f80373a9a1be0bf8
- https://git.kernel.org/stable/c/0f6947f5f5208f6ebd4d76a82a4757e2839a23f8
- https://git.kernel.org/stable/c/1bbf82d9f961414d6c76a08f7f843ea068e0ab7b
- https://git.kernel.org/stable/c/33061d0fba51d2bf70a2ef9645f703c33fe8e438
- https://git.kernel.org/stable/c/92ee3c60ec9fe64404dc035e7c41277d74aa26cb
- https://git.kernel.org/stable/c/9cb6c40a6ebe4a0cfc9d6a181958211682cffea9
- https://git.kernel.org/stable/c/a42aa926843acca96c0dfbde2e835b8137f2f092
- https://git.kernel.org/stable/c/fbeb492694ce0441053de57699e1e2b7bc148a69
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.193