SB20250226504 - Improper locking in Linux kernel sound
Published: February 26, 2025 Updated: May 11, 2025
Security Bulletin ID
SB20250226504
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Improper locking (CVE-ID: CVE-2022-49272)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper locking within the snd_pcm_hw_params_choose(), snd_pcm_hw_params(), snd_pcm_hw_free() and snd_pcm_action_nonatomic() functions in sound/core/pcm_native.c, within the wait_for_avail() and __snd_pcm_lib_xfer() functions in sound/core/pcm_lib.c, within the snd_pcm_attach_substream() function in sound/core/pcm.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/40f4cffbe13a51faf136faf5f9ef6847782cd595
- https://git.kernel.org/stable/c/7777744e92a0b30e3e0cce2758d911837011ebd9
- https://git.kernel.org/stable/c/7e9133607e1501c94881be35e118d8f84d96dcb4
- https://git.kernel.org/stable/c/9017201e8d8c6d1472273361389ed431188584a0
- https://git.kernel.org/stable/c/9661bf674d6a82b76e4ae424438a8ce1e3ed855d
- https://git.kernel.org/stable/c/abedf0d08c79d76da0d6fa0d5dbbc98871dcbc2e
- https://git.kernel.org/stable/c/bc55cfd5718c7c23e5524582e9fa70b4d10f2433
- https://git.kernel.org/stable/c/be9813ad2fc8f0885f5ce6925af0d993ce5da4e5
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.17.2