#VU115903 Use-after-free in Linux kernel - CVE-2022-50379
Published: September 19, 2025 / Updated: September 22, 2025
Vulnerability identifier: #VU115903
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-2022-50379
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 btrfs_quota_enable() function in fs/btrfs/qgroup.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/0efd9dfc00d677a1d0929319a6103cb2dfc41c22
- https://git.kernel.org/stable/c/26b7c0ac49a3eea15559c9d84863736a6d1164b4
- https://git.kernel.org/stable/c/331cd9461412e103d07595a10289de90004ac890
- https://git.kernel.org/stable/c/47b5ffe86332af95f0f52be0a63d4da7c2b37b55
- https://git.kernel.org/stable/c/4b996a3014ef014af8f97b60c35f5289210a4720
- https://git.kernel.org/stable/c/6c22f86dd221eba0c7af645b1af73dcbc04ee27b
- https://git.kernel.org/stable/c/c97f6d528c3f1c83a6b792a8a7928c236c80b8fe
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.262