#VU120800 NULL pointer dereference in Linux kernel - CVE-2022-50817
Published: December 30, 2025 / Updated: December 30, 2025
Vulnerability identifier: #VU120800
Vulnerability risk: Low
CVSSv4.0: 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-2022-50817
CWE-ID: CWE-476
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 perform a denial of service (DoS) attack.
The vulnerability exists due to NULL pointer dereference within the hsr_get_untagged_frame() function in net/hsr/hsr_forward.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's repository.
External links
- https://git.kernel.org/stable/c/35ece858660eae13ee0242496a1956c39d29418e
- https://git.kernel.org/stable/c/c46f2e0fcd1ecfc6046e5cf785ff89f0572f94e4
- https://git.kernel.org/stable/c/d8b57135fd9ffe9a5b445350a686442a531c5339
- https://git.kernel.org/stable/c/ff7ba766758313129794f150bbc4d351b5e17a53
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.152