SB20260828164 - Out-of-bounds read in Linux kernel mfd driver
Published: August 28, 2026
Security Bulletin ID
SB20260828164
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) Out-of-bounds read (CVE-ID: CVE-2026-80624)
CWE-ID: CWE-125 - Out-of-bounds read
CVSSv4: 6.8 [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]
The vulnerability allows a local user to cause a denial of service.
The vulnerability exists due to an out-of-bounds read in the cs42l43 firmware loading code when processing a firmware image smaller than the firmware header. A local user can provide a specially crafted firmware image to cause a denial of service.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/17d79248b4f370663f9d351409a130fc1ed9416d
- https://git.kernel.org/stable/c/197a4c54d8a94fe2fb7829661b29f0859c10feb5
- https://git.kernel.org/stable/c/2ce02059ceb6311a33026b62e6e4dc4ed22a3aef
- https://git.kernel.org/stable/c/b6ef1a74b3ec254f87a6a3c554fe8f8083ebd37c
- https://git.kernel.org/stable/c/d35e4032f16d7621468c8b56816e7935ebf590a7