SB20251230245 - NULL pointer dereference in Linux kernel hsr
Published: December 30, 2025 Updated: December 30, 2025
Security Bulletin ID
SB20251230245
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) NULL pointer dereference (CVE-ID: CVE-2022-50817)
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 website.
References
- 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