SB20250226540 - Improper locking in Linux kernel trace events
Published: February 26, 2025 Updated: May 11, 2025
Security Bulletin ID
SB20250226540
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) Improper locking (CVE-ID: CVE-2022-49149)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper locking within the rxrpc_call_timer_expired(), rxrpc_see_call(), rxrpc_release_call(), rxrpc_destroy_call() and rxrpc_cleanup_call() functions in net/rxrpc/call_object.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/051360e51341cd17738d82c15a8226010c7cb7f6
- https://git.kernel.org/stable/c/4a7f62f91933c8ae5308f9127fd8ea48188b6bc3
- https://git.kernel.org/stable/c/54df5a37f1d951ed27fd47bf9b15a42279582110
- https://git.kernel.org/stable/c/5e3c11144e557a9dbf9a2f6abe444689ef9d8aae
- https://git.kernel.org/stable/c/8cbf4ae7a2833767d63114573e5f9a45740cc975
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.33