Improper Initialization in Linux kernel - CVE-2026-31693
Published: April 30, 2026
Vulnerability identifier: #VU128644
CSH Severity: Low
CVSS v4.0: 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-2026-31693
CWE-ID: CWE-665
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Linux Foundation
Affected software:
Linux kernel
Linux kernel
Detailed vulnerability description
The vulnerability allows a local user to cause a denial of service.
The vulnerability exists due to improper initialization in cifs replay handling when replaying requests. A local user can trigger request replay to cause a denial of service.
How to mitigate CVE-2026-31693
Install security update from vendor's repository.
Sources
- https://git.kernel.org/stable/c/14f66f44646333d2bfd7ece36585874fd72f8286
- https://git.kernel.org/stable/c/1d731e512134495e0ef490ade0e4d91dc0d515ec
- https://git.kernel.org/stable/c/7c9ce68192eef14c777cb6ce17155d2eb2431aea
- https://git.kernel.org/stable/c/c854ab481ece4b3e5f4c2e8b22824f015ff874a5
- https://git.kernel.org/stable/c/c99e160938b627f6f28edee930e8abc157e84386