#VU115901 Use-after-free in Linux kernel - CVE-2022-50377
Published: September 19, 2025 / Updated: September 22, 2025
Vulnerability identifier: #VU115901
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2022-50377
CWE-ID: CWE-416
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerable software:
Linux kernel
Linux kernel
Software vendor:
Linux Foundation
Linux Foundation
Description
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the ext4_evict_inode() function in fs/ext4/inode.c. A local user can escalate privileges on the system.
Remediation
Install update from vendor's repository.
External links
- https://git.kernel.org/stable/c/0c026f975d24701766cf4ac63995ead9f6d57a59
- https://git.kernel.org/stable/c/318cdc822c63b6e2befcfdc2088378ae6fa18def
- https://git.kernel.org/stable/c/9020f56a3cad1c97b81c7dab2aa67027b59c8f73
- https://git.kernel.org/stable/c/91009e361e8cb2cbd1dc9496cb5fb4f8de3f4b11
- https://git.kernel.org/stable/c/f1ec687ebd1bf146333955b7e209d21508c3ba9f
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.4