#VU111442 Use-after-free in Linux kernel - CVE-2022-50231
Published: June 19, 2025 / Updated: June 21, 2025
Vulnerability identifier: #VU111442
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-2022-50231
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 neon_poly1305_blocks() function in arch/arm64/crypto/poly1305-glue.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/3c77292d52b341831cb09c24ca4112a1e4f9e91f
- https://git.kernel.org/stable/c/3d4c28475ee352c440b83484b72b1320ff76364a
- https://git.kernel.org/stable/c/7ae19d422c7da84b5f13bc08b98bd737a08d3a53
- https://git.kernel.org/stable/c/8d25a08599df7ca3093eb7ca731c7cd41cbfbb51
- https://git.kernel.org/stable/c/d069dcffef849b8fd10030fd73007a79612803e6
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.19.1