SB20251001176 - Memory leak in Linux kernel pci ac97
Published: October 1, 2025 Updated: October 27, 2025
Security Bulletin ID
SB20251001176
CSH 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 vulnerability.
1) Memory leak (CVE-ID: CVE-2022-50427)
CWE-ID: CWE-401 - Missing release of memory after effective lifetime
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to memory leak within the snd_ac97_dev_register() function in sound/pci/ac97/ac97_codec.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/0f8e9a15c8ecf95057061d370a2dddaf1cee4aeb
- https://git.kernel.org/stable/c/4881bda5ea05c8c240fc8afeaa928e2bc43f61fa
- https://git.kernel.org/stable/c/4fdf6f978c6b605ca0d67bf0e982b7a8fc0f4aab
- https://git.kernel.org/stable/c/758dbcc6fbf2286eff02743b093c70a18a407d66
- https://git.kernel.org/stable/c/a602ec9d88f177dba78bc97fb1adecc7a71ff279
- https://git.kernel.org/stable/c/bfce73088682ef0770da951f51156c36a89be490
- https://git.kernel.org/stable/c/c68b2e9ef246117f696e360bbdd2f5736b3a7127
- https://git.kernel.org/stable/c/ee8bf0946f62ef00e5db4b613a9f664ac567259a
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.264