#VU120400 Use-after-free in Linux kernel - CVE-2022-50730
Published: December 26, 2025 / Updated: December 31, 2025
Vulnerability identifier: #VU120400
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-2022-50730
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/0d041b7251c13679a0f6c7926751ce1d8a7237c1
- https://git.kernel.org/stable/c/3b893cc9a8d8b4e486a6639f5e107b56b7197d2e
- https://git.kernel.org/stable/c/b085fb43feede48ebf80ab7e2dd150c8d9902932
- https://git.kernel.org/stable/c/bc12ac98ea2e1b70adc6478c8b473a0003b659d3
- https://git.kernel.org/stable/c/bdc698ce91f232fd5eb11d2373e9f82f687314b8
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.163