Resource management error in Linux kernel - CVE-2022-49743
Published: March 28, 2025 / Updated: May 11, 2025
Vulnerability identifier: #VU106229
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-2022-49743
CWE-ID: CWE-399
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 resource management error within the ovl_fid_to_fh() function in fs/overlayfs/export.c. A local user can perform a denial of service (DoS) attack.
Affected software
Linux kernel
How to mitigate CVE-2022-49743
Install update from vendor's website.
Linux kernel - addressed in versions 5.15.93, 6.1.11, 6.2
External References
- https://git.kernel.org/stable/c/07a96977b2f462337a9121302de64277b8747ab1
- https://git.kernel.org/stable/c/a77141a06367825d639ac51b04703d551163e36c
- https://git.kernel.org/stable/c/cf8aa9bf97cadf85745506c6a3e244b22c268d63
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.93
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.11
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.2