Improper locking in Linux kernel - CVE-2024-50140
Published: November 7, 2024 / Updated: May 12, 2025
Vulnerability identifier: #VU100076
CSH Severity: Low
CVSS v4.0: 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
CVE-ID: CVE-2024-50140
CWE-ID: CWE-667
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Linux Foundation
Affected software:
Linux kernel
Linux kernel
Detailed vulnerability description
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.
How to mitigate CVE-2024-50140
Install update from vendor's website.
Sources
- 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