NULL pointer dereference in Linux kernel - CVE-2022-50455
Published: October 3, 2025 / Updated: October 27, 2025
Vulnerability identifier: #VU116415
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2022-50455
CWE-ID: CWE-476
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Linux Foundation
Affected software:
Linux kernel
Linux kernel
Detailed vulnerability description
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to NULL pointer dereference within the nfs_fs_context_parse_param() function in fs/nfs/fs_context.c. A local user can perform a denial of service (DoS) attack.
How to mitigate CVE-2022-50455
Install update from vendor's repository.
Sources
- https://git.kernel.org/stable/c/46819f604557fe7bc39a6c352fd368371aa9cd6e
- https://git.kernel.org/stable/c/55513864b418c6453d68aebc36cffcf965342426
- https://git.kernel.org/stable/c/5559405df652008e56eee88872126fe4c451da67
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.0.16
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.2
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.2