Out-of-bounds read in Linux kernel - CVE-2026-53386
Published: July 21, 2026
Vulnerability identifier: #VU138880
CSH Severity: Low
CVSS v4: 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]
CVE-ID: CVE-2026-53386
CWE-ID: CWE-125
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to cause a denial of service.
The vulnerability exists due to an out-of-bounds read in the ads1298_get_scale function when processing register values used to index the ads1298_pga_settings array. A local user can trigger an out-of-range index to cause a denial of service.
The issue occurs when the extracted PGA field contains the reserved value b111.
Affected software
Linux kernel
How to mitigate CVE-2026-53386
Install security update from vendor's repository.
Linux kernel - update to 7.0 rc3
External References
- https://git.kernel.org/stable/c/95e8a48d7a85d4226934020e57815a3316d3a14b
- https://git.kernel.org/stable/c/abd776ded3e256889610595290f6ca46cb6e91ab
- https://git.kernel.org/stable/c/abe0854e356b1bb814393ca884cb42b3eb12ce10
- https://git.kernel.org/stable/c/d08d82d83ed45fd8c001a9df66ad7ebb86c9d6c6
- https://git.kernel.org/stable/c/d5793975fc3b1780ba576812158ef22e3104e60e