#VU104643 NULL pointer dereference in Linux kernel - CVE-2022-49195
Published: February 26, 2025 / Updated: May 11, 2025
Vulnerability identifier: #VU104643
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-2022-49195
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 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.
External links
- 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