NULL pointer dereference in Linux kernel - CVE-2026-93210
Published: September 25, 2026
Vulnerability identifier: #VU152192
CSH Severity: Low
CVSS v4: 6.8 [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]
CVE-ID: CVE-2026-93210
CWE-ID: CWE-476
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to cause a denial of service.
The vulnerability exists due to a null pointer dereference in the SMB client DFS cache when processing an invalid target hint. A local user can cause the DFS cache to process an invalid target hint to cause a denial of service.
Affected software
Linux kernel
How to mitigate CVE-2026-93210
Install security update from vendor's repository.
Linux kernel - update to 7.0 rc3
External References
- https://git.kernel.org/stable/c/66dbcdbb0cadffd12eb8f2b115fd57d384c5109d
- https://git.kernel.org/stable/c/6cb7f9fed8f40f28fbd464ca99c946951afc0952
- https://git.kernel.org/stable/c/7e32da6047d9afdae8dd17b87b4c8d97363c4ee2
- https://git.kernel.org/stable/c/846f0709559b9e27024e126a80bc7afb76516912
- https://git.kernel.org/stable/c/a48328afbc3f63e3b9de8827e2e16c15b17976f7
- https://git.kernel.org/stable/c/bf86c08123c6ab8c61cc0be1dad7540db93738ff