Improper locking in Linux kernel - CVE-2022-49414
Published: February 26, 2025 / Updated: May 11, 2025
Vulnerability identifier: #VU104653
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-2022-49414
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 ext4_punch_hole() function in fs/ext4/inode.c, within the ext4_fallocate() function in fs/ext4/extents.c. A local user can perform a denial of service (DoS) attack.
How to mitigate CVE-2022-49414
Install update from vendor's website.
Sources
- https://git.kernel.org/stable/c/14602353b350950b551eccc6b46411aa3b12ffe2
- https://git.kernel.org/stable/c/18881d7e517169193d9ef6c89c7f322e3e164277
- https://git.kernel.org/stable/c/725e00cb7039eae291890f1bb19bc867176745f6
- https://git.kernel.org/stable/c/91f90b571f1a23f5b8a9c2b68a9aa5d6981a3c3d
- https://git.kernel.org/stable/c/ccc6639f831bee91aa8b41c8a1cdd020ecfb9f32
- https://git.kernel.org/stable/c/f87c7a4b084afc13190cbb263538e444cb2b392a
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.132
- 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
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.207