CVE-2026-93146

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.

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Produits concernés

• Linux

Références

• https://git.kernel.org/stable/c/06aba58e58492d2b8eae059274caed29025ea96e
• https://git.kernel.org/stable/c/1f0c3c0c36c7aedf55a60d9c71c4bd258b8937ce
• https://git.kernel.org/stable/c/5b8a40de738b7c4896c2edbc6262bd1b3462ded0
• https://git.kernel.org/stable/c/b20d7085ab314672447322c10cc5d1ba443e3b8e
• https://git.kernel.org/stable/c/db667d2970c756cc7b483f45f272440f845a665b

Ailleurs

• NVD
• CVE.org
• CIRCL Vulnerability-Lookup
• CERT-FR
• GitHub Advisories