Improper locking in Linux kernel - CVE-2022-49540
Published: February 26, 2025 / Updated: May 11, 2025
Vulnerability identifier: #VU104675
CSH Severity: Low
CVSS v4: 6.8 [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]
CVE-ID: CVE-2022-49540
CWE-ID: CWE-667
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper locking within the kernel/rcu/tasks.h. A local user can perform a denial of service (DoS) attack.
Affected software
Linux kernel
How to mitigate CVE-2022-49540
Install update from vendor's website.
Linux kernel - addressed in versions 5.10.121, 5.15.46, 5.17.14, 5.18.3, 5.19
External References
- https://git.kernel.org/stable/c/1c6c3f2336642fb3074593911f5176565f47ec41
- https://git.kernel.org/stable/c/230bf5878af6038dfb63d9184272a58475236580
- https://git.kernel.org/stable/c/8f49a8758b5cd541bd7aa9a0d0d11c7426141c0e
- https://git.kernel.org/stable/c/ba722d061bc4b54802d701fc63fc2fd988934603
- https://git.kernel.org/stable/c/f75fd4b9221d93177c50dcfde671b2e907f53e86
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.121
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.46
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.17.14
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.18.3
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.19