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CVE PROGRAM SOURCE RECORDUnscored

CVE-2026-93146

time/namespace: Validate nanosecond field in proc_timens_set_offset()

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Status
Published
Published
Updated
Assigning organization
Linux

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Linux Linux

Default version status: unaffected

  • 04a8682a71becdb639ec9c0d82b315a2baef7a5d to < ce0dd307dfa3193fbf06371b7c819a6bff7d3d68affected
  • 04a8682a71becdb639ec9c0d82b315a2baef7a5d to < 5b8a40de738b7c4896c2edbc6262bd1b3462ded0affected
  • 04a8682a71becdb639ec9c0d82b315a2baef7a5d to < b20d7085ab314672447322c10cc5d1ba443e3b8eaffected
  • 04a8682a71becdb639ec9c0d82b315a2baef7a5d to < db667d2970c756cc7b483f45f272440f845a665baffected
  • 04a8682a71becdb639ec9c0d82b315a2baef7a5d to < 1f0c3c0c36c7aedf55a60d9c71c4bd258b8937ceaffected
  • 04a8682a71becdb639ec9c0d82b315a2baef7a5d to < 06aba58e58492d2b8eae059274caed29025ea96eaffected

Linux Linux

Default version status: affected

  • 5.6affected
  • 0 to < 5.6unaffected
  • 6.1.191 to ≤ 6.1.*unaffected
  • 6.6.160 to ≤ 6.6.*unaffected
  • 6.12.114 to ≤ 6.12.*unaffected
  • 6.18.52 to ≤ 6.18.*unaffected
  • 7.2.6 to ≤ 7.2.*unaffected
  • 7.3 to ≤ *unaffected

References