SB2024111939 - Improper locking in Linux kernel
Published: November 19, 2024 Updated: May 12, 2025
Security Bulletin ID
SB2024111939
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-2024-50271)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper locking within the dec_rlimit_put_ucounts() and inc_rlimit_get_ucounts() functions in kernel/ucount.c, within the __sigqueue_alloc() function in kernel/signal.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/012f4d5d25e9ef92ee129bd5aa7aa60f692681e1
- https://git.kernel.org/stable/c/4877d9b2a2ebad3ae240127aaa4cb8258b145cf7
- https://git.kernel.org/stable/c/0208ea17a1e4456fbfe555f13ae5c28f3d671e40
- https://git.kernel.org/stable/c/9e05e5c7ee8758141d2db7e8fea2cab34500c6ed
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.117
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.11.8
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.12
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.61