SB20250226461 - NULL pointer dereference in Linux kernel dsa
Published: February 26, 2025 Updated: May 11, 2025
Security Bulletin ID
SB20250226461
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-2022-49195)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to NULL pointer dereference within the dsa_switch_shutdown() function in net/dsa/dsa2.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/8fd36358ce82382519b50b05f437493e1e00c4a9
- https://git.kernel.org/stable/c/95df5cd5a446df6738d2d45872e08594819080e4
- https://git.kernel.org/stable/c/b6e668ff43ebd87ccc8a19e5481345c428672295
- https://git.kernel.org/stable/c/b864d5350c18bea9369d0bdd9e7eb6f6172cc283
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.17.2