#VU115372 Use-after-free in Linux kernel - CVE-2022-50335
Published: September 16, 2025 / Updated: September 22, 2025
Vulnerability identifier: #VU115372
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-2022-50335
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 p9_tag_alloc() function in net/9p/client.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/1cabce56626a61f4f02452cba61ad4332a4b73f8
- https://git.kernel.org/stable/c/26273ade77f54716e30dfd40ac6e85ceb54ac0f9
- https://git.kernel.org/stable/c/73c47b3123b351de2d3714a72a336c0f72f203af
- https://git.kernel.org/stable/c/967fc34f297e40fd2e068cf6b0c3eb4916228539
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.2