SB20250226367 - NULL pointer dereference in Linux kernel rtc driver
Published: February 26, 2025 Updated: May 11, 2025
Security Bulletin ID
SB20250226367
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-2022-49273)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to NULL pointer dereference within the pl031_probe() function in drivers/rtc/rtc-pl031.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/1b915703964f7e636961df04c540261dc55c6c70
- https://git.kernel.org/stable/c/cd2722e411e8ab7e5ae41102f6925fa13dffdac5
- https://git.kernel.org/stable/c/d274ce4a3dfd0b9a292667535578359b865765cb
- https://git.kernel.org/stable/c/ea6af39f3da50c86367a71eb3cc674ade3ed244c
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.33
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.16.19
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.17.2
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.18