CVE-2026-93146

CVE CVE-2026-93146EUVD EUVD-2026-82254Published 2026-09-17T16:11:44.000Z

What the advisory describes

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.

Source: EUVD (ENISA), in the words of the advisory.

Products the advisory names

These come from the advisory itself, not from any check we performed.

Linux — Linux 5.6; 04a8682a71becdb639ec9c0d82b315a2baef7a5d <db667d2970c756cc7b483f45f272440f845a665b; patch: 7.3-rc1; 04a8682a71becdb639ec9c0d82b315a2baef7a5d <1f0c3c0c36c7aedf55a60d9c71c4bd258b8937ce; patch: 7.2.6; 04a8682a71becdb639ec9c0d82b315a2baef7a5d <06aba58e58492d2b8eae059274caed29025ea96e; patch: 6.18.52; patch: 0

The versions shown are the advisory's own. Patchlage compares no version numbers and derives no judgement from them — which version is installed is something a person has to look up.

Carried in the product catalogue

An estate covering these products can be recorded in Patchlage. An advisory about them appears in the next morning's situation report.

Linux — Linux

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