Out-of-bounds read in Linux kernel - CVE-2026-90419
Published: September 18, 2026
Vulnerability identifier: #VU151057
CSH Severity: Low
CVSS v4: 0 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-90419
CWE-ID: CWE-125
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to perform an out-of-bounds read.
The vulnerability exists due to improper input validation in nilfs2 super-root block parsing when processing a malformed filesystem image. A local user can supply a malformed filesystem image to perform an out-of-bounds read.
Affected software
Linux kernel
How to mitigate CVE-2026-90419
Install security update from vendor's repository.
External References
- https://git.kernel.org/stable/c/15c8559376416a84c3d8402fd8d0c89bb323d05f
- https://git.kernel.org/stable/c/16df2520502867a4f34e202b89d01243d59bb8b5
- https://git.kernel.org/stable/c/5b69ebe20d7f944c1f45177dca0c11474ac277cc
- https://git.kernel.org/stable/c/7029e70cf86d5c54c0a2812479b0bee2cabcbaaa
- https://git.kernel.org/stable/c/71bd64471ff583101b4a33dfc838ce29aef57960
- https://git.kernel.org/stable/c/7cb2f76a6a2ba2130b577cb8ac13e1e46c4fc689
- https://git.kernel.org/stable/c/842397fdfd2e61d6470166c796f3125b6c27a162
- https://git.kernel.org/stable/c/dcc85fc28f884038735464f6f104dda9c7dbfad6