#VU115392 Use-after-free in Linux kernel - CVE-2022-50241
Published: September 16, 2025 / Updated: September 22, 2025
Vulnerability identifier: #VU115392
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-2022-50241
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 nfs4_alloc_open_stateid(), nfs4_free_ol_stateid() and nfsd4_close_open_stateid() functions in fs/nfsd/nfs4state.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/019805fea91599b22dfa62ffb29c022f35abeb06
- https://git.kernel.org/stable/c/35aa0fb8c3033a3d78603356e96fc18c5b9cceb2
- https://git.kernel.org/stable/c/6ea71246b7a02af675d733e72d14bd0d591d5f4a
- https://git.kernel.org/stable/c/83b94969751a691347606dbe6b1865efcfa5a643
- https://git.kernel.org/stable/c/bbacfcde5fff25ac22597e8373a065c647da6738
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.150