SB20250226529 - Improper locking in Linux kernel trace
Published: February 26, 2025 Updated: May 11, 2025
Security Bulletin ID
SB20250226529
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-2022-49322)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper locking within the trace_event_buffer_lock_reserve() and output_printk() functions in kernel/trace/trace.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/12025abdc8539ed9d5014e2d647a3fd1bd3de5cd
- https://git.kernel.org/stable/c/1788e6dbb61286215442b1af99e51405a6206762
- https://git.kernel.org/stable/c/40f9fde06b25884baa0c4bd138b909a9b67218b4
- https://git.kernel.org/stable/c/43bfc4dccc416c964b53cbdc430e814f8b6f770b
- https://git.kernel.org/stable/c/48c6ee7d6c614f09b2c8553a95eefef6ecf196e0
- https://git.kernel.org/stable/c/9abf3db8bdb63ab545034148ef2118f4d088ca59
- https://git.kernel.org/stable/c/9b534640a2c6a8d88168febc82ec6d161184f2ec
- https://git.kernel.org/stable/c/be1f323fb9d9b14a505ca22d742d321769454de1
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.283