SB20251001194 - Input validation error in Linux kernel mtd ubi driver
Published: October 1, 2025 Updated: October 27, 2025
Security Bulletin ID
SB20251001194
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 security vulnerability.
1) Input validation error (CVE-ID: CVE-2023-53481)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper input validation within the wear_leveling_worker() and ubi_wl_put_peb() functions in drivers/mtd/ubi/wl.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/3afaaf6f5867dc4ad383808d4053f428ec7b867d
- https://git.kernel.org/stable/c/4d57a7333e26040f2b583983e1970d9d460e56b0
- https://git.kernel.org/stable/c/5af1c643184a5d09ff5b3f334077a4d0a163c677
- https://git.kernel.org/stable/c/8a18856e074479bd050b01e688c58defadce7ab0
- https://git.kernel.org/stable/c/b40d2fbf47af58377e898b5062077a47bb28a132
- https://git.kernel.org/stable/c/b5be23f6ae610bdb262160a1f294afee6d0e6a69
- https://git.kernel.org/stable/c/cc4bc532acda66189bddc03b3fe1ad689d9a48a2
- https://git.kernel.org/stable/c/f006f596fe851c3b6aae60b79f89f89f0e515d2f
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.276