Out-of-bounds read in Linux kernel - CVE-2026-80526
Published: August 27, 2026
Vulnerability identifier: #VU145965
CSH Severity: Low
CVSS v4: 8.5 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-80526
CWE-ID: CWE-125
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to execute arbitrary code.
The vulnerability exists due to an out-of-bounds read in tas2562_volume_control_put() when processing userspace volume control values. A local user can supply a specially crafted control value to execute arbitrary code.
The out-of-bounds array access uses a user-controlled index derived from the volume value and may result in an unintended value being written to the device.
Affected software
Linux kernel
How to mitigate CVE-2026-80526
Install security update from vendor's repository.
Linux kernel - update to 7.0 rc3
External References
- https://git.kernel.org/stable/c/1f389ecd0c35e9e281036e44c121df904f3164c1
- https://git.kernel.org/stable/c/20bdbb1376457ecbf418bf677fd285820d1fc011
- https://git.kernel.org/stable/c/8fb41964f7e4e4207c8999af2056894caa7a252a
- https://git.kernel.org/stable/c/c37a0461c0d0a70c5de4fdbd70449a7f53c12dda
- https://git.kernel.org/stable/c/db488d653d896fcf9ac87e15239924c2928bbc3c