SB20250226608 - Use of uninitialized resource in Linux kernel mm
Published: February 26, 2025 Updated: May 11, 2025
Security Bulletin ID
SB20250226608
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) Use of uninitialized resource (CVE-ID: CVE-2022-49081)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to use of uninitialized resource within the __kmap_local_sched_out() and __kmap_local_sched_in() functions in mm/highmem.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/66f133ceab7456c789f70a242991ed1b27ba1c3d
- https://git.kernel.org/stable/c/7dd5b3b97716a611fcf67d92fd2370fcb8d50372
- https://git.kernel.org/stable/c/85550b0f5fa5dd3c30469ea702c44444ef242c83
- https://git.kernel.org/stable/c/c21d040de6225414547d9bd31cd200f290991c85
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.34