SB20250226391 - NULL pointer dereference in Linux kernel pinctrl renesas driver
Published: February 26, 2025 Updated: May 11, 2025
Security Bulletin ID
SB20250226391
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) NULL pointer dereference (CVE-ID: CVE-2022-49445)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to NULL pointer dereference within the sh_pfc_map_resources() function in drivers/pinctrl/renesas/core.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/5376e3d904532e657fd7ca1a9b1ff3d351527b90
- https://git.kernel.org/stable/c/5ed0519d425619b435150372cce2ffeec71581fa
- https://git.kernel.org/stable/c/e3a1ad8fd0ac11f4fa1260c23b5db71a25473254
- https://git.kernel.org/stable/c/f991879762392c19661af5b722578089a12b305f
- https://git.kernel.org/stable/c/fb4f022b3ad1f3ff3cafdbc7d51896090ae17701
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.18.3