Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: time/namespace: Validate nanosecond field in proc_timens_set_offset() The function validates tv_sec to be within [-KTIME_SEC_MAX, KTIME_SEC_MAX] but never validates that tv_nsec is within the valid range of [0, NSEC_PER_SEC-1] before using it in timespec64_add(). timespec64_add() expects both timespec64 structures to have normalized values with tv_nsec in the range [0, 999999999]. If off->val.tv_nsec contains invalid values (negative or >= NSEC_PER_SEC), it could lead to incorrect calculations or unexpected behavior. Add validation to ensure tv_nsec is within the valid range before performing the addition.
References
- https://git.kernel.org/stable/c/06aba58e58492d2b8eae059274caed29025ea96e
- https://git.kernel.org/stable/c/1f0c3c0c36c7aedf55a60d9c71c4bd258b8937ce
- https://git.kernel.org/stable/c/db667d2970c756cc7b483f45f272440f845a665b
FAQ
What is CVE-2026-93146?
CVE-2026-93146 is a documented vulnerability. In the Linux kernel, the following vulnerability has been resolved: time/namespace: Validate nanosecond field in proc_timens_set_offset() The function validates tv_sec to be within [-KTIME_SEC_MAX, ...
How severe is CVE-2026-93146?
CVSS scoring is not yet available for CVE-2026-93146. Check NVD for updates.
Is there a patch for CVE-2026-93146?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.