#VU121987 NULL pointer dereference in Linux kernel - CVE-2026-22992
Published: January 23, 2026
Vulnerability identifier: #VU121987
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-2026-22992
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 mon_handle_auth_done() function in net/ceph/mon_client.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/33908769248b38a5e77cf9292817bb28e641992d
- https://git.kernel.org/stable/c/77229551f2cf72f3e35636db68e6a825b912cf16
- https://git.kernel.org/stable/c/9e0101e57534ef0e7578dd09608a6106736b82e5
- https://git.kernel.org/stable/c/d2c4a5f6996683f287f3851ef5412797042de7f1
- https://git.kernel.org/stable/c/e097cd858196b1914309e7e3d79b4fa79383754d
- https://git.kernel.org/stable/c/e84b48d31b5008932c0a0902982809fbaa1d3b70