#VU111428 Use-after-free in Linux kernel - CVE-2022-50159
Published: June 19, 2025 / Updated: June 21, 2025
Vulnerability identifier: #VU111428
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-2022-50159
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 ima_get_kexec_buffer() function in drivers/of/kexec.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/1b2263d6c86fca8f30e18231778393bfc287bb27
- https://git.kernel.org/stable/c/beb5bba5dd132650c073f815c685c60c3e5b783b
- https://git.kernel.org/stable/c/cbf9c4b9617b6767886a913705ca14b7600c77db
- https://git.kernel.org/stable/c/dc3b8525f83ac6bbc885bb24bbb8a76f4622200e
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.18.18