Out-of-bounds read in Linux kernel - CVE-2026-93155
Published: September 18, 2026
Vulnerability identifier: #VU150855
CSH Severity: Low
CVSS v4: 5.6 [CVSS:4.0/AV:L/AC:L/AT:P/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-93155
CWE-ID: CWE-125
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local privileged user to cause a denial of service.
The vulnerability exists due to an out-of-bounds access in the Keem Bay OCS AES driver's register_aes_algs() function when skcipher algorithm registration fails after AEAD algorithm registration. A local privileged user can trigger the registration error path to cause a denial of service.
Affected software
Linux kernel
How to mitigate CVE-2026-93155
Install security update from vendor's repository.
External References
- https://git.kernel.org/stable/c/27ec91c29ee155cc507b2f56221fc6fab65dbb51
- https://git.kernel.org/stable/c/5607b101d86cbee8dd1ffab784495c880ca73383
- https://git.kernel.org/stable/c/5bbb726d27ff6dff750264e51aa665538394d0f8
- https://git.kernel.org/stable/c/a3217fe7998622728a53dff405615e0971949eaf
- https://git.kernel.org/stable/c/e264401ce4776a288524e5b87593d4d864147115