SB2024110764 - Improper locking in Linux kernel
Published: November 7, 2024 Updated: May 12, 2025
Security Bulletin ID
SB2024110764
CSH 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 vulnerability.
1) Improper locking (CVE-ID: CVE-2024-50140)
CWE-ID: CWE-667 - Improper Locking
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper locking within the task_work_add() function in kernel/task_work.c, within the task_tick_mm_cid() function in kernel/sched/core.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/509c29d0d26f68a6f6d0a05cb1a89725237e2b87
- https://git.kernel.org/stable/c/ce0241ef83eed55f675376e8a3605d23de53d875
- https://git.kernel.org/stable/c/73ab05aa46b02d96509cb029a8d04fca7bbde8c7
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.11.6
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.12
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.59