Improper Initialization in Linux kernel - CVE-2026-31445
Published: April 24, 2026
Vulnerability identifier: #VU127700
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-2026-31445
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 handling of a partially updated context in damon_commit_ctx() and kdamond_call() when updating DAMON parameters after an internal memory allocation failure. A local user can trigger a parameter update that encounters an allocation failure to cause a denial of service.
The issue can lead to unexpected behavior including a NULL pointer dereference.
How to mitigate CVE-2026-31445
Install security update from vendor's repository.