VulnerabilityPublished 17 Sep 2026Updated 30 Oct 2026

CVE-2026-93146: Linux kernel · time/namespace: Validate nanosecond field in proc_timens_set_offset()

Source GCVE Database

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Authoritative record:CVE-2026-93146· Low

Not known to be exploited · fixed in db667d2970c756cc7b483f45f272440f845a665b : update Linux kernel when convenient.

Data as of 30 Oct 2026, 18:06 UTC

Severity

Low

Rated Low by Threat Radar's AI analysis · CVSS not yet scored by NVD

Thin evidence

One scorer or none

Patch: Available – fixed in db667d2970c756cc7b483f45f272440f845a665b, ce0dd307dfa3193fbf06371b7c819a6bff7d3d68, b20d7085ab314672447322c10cc5d1ba443e3b8e +3

Exploitation evidence

Disclosed: evidence found.
CVE published 17 Sep 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 30 Oct 2026.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponized: A Metasploit exploit module or Exploit-DB entry exists (Metasploit scanner modules do not count), or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

ghsa-477f-qmj2-58hm

What to do

Upgrade to a fixed release listed under Affected software.

Affected software

Product	Affected	Fixed in
LinuxLinux	Affected ≥ 04a8682a71becdb639ec9c0d82b315a2baef7a5d, < db667d2970c756cc7b483f45f272440f845a665b	Fixed in db667d2970c756cc7b483f45f272440f845a665b
LinuxLinux	Affected ≥ 04a8682a71becdb639ec9c0d82b315a2baef7a5d, < ce0dd307dfa3193fbf06371b7c819a6bff7d3d68	Fixed in ce0dd307dfa3193fbf06371b7c819a6bff7d3d68
LinuxLinux	Affected ≥ 04a8682a71becdb639ec9c0d82b315a2baef7a5d, < b20d7085ab314672447322c10cc5d1ba443e3b8e	Fixed in b20d7085ab314672447322c10cc5d1ba443e3b8e
LinuxLinux	Affected ≥ 04a8682a71becdb639ec9c0d82b315a2baef7a5d, < 06aba58e58492d2b8eae059274caed29025ea96e	Fixed in 06aba58e58492d2b8eae059274caed29025ea96e
LinuxLinux	Affected ≥ 04a8682a71becdb639ec9c0d82b315a2baef7a5d, < 5b8a40de738b7c4896c2edbc6262bd1b3462ded0	Fixed in 5b8a40de738b7c4896c2edbc6262bd1b3462ded0
LinuxLinux	Affected ≥ 04a8682a71becdb639ec9c0d82b315a2baef7a5d, < 1f0c3c0c36c7aedf55a60d9c71c4bd258b8937ce	Fixed in 1f0c3c0c36c7aedf55a60d9c71c4bd258b8937ce

AI-suggested

A fix has been implemented in the Linux kernel to validate the nanosecond field before use. Users should apply the official kernel updates that include this fix. No additional mitigation steps are indicated.

Description

A vulnerability in the Linux kernel's time namespace code was fixed by adding validation for the nanosecond field in proc_timens_set_offset(). Previously, the function validated the seconds field but did not check that the nanoseconds value was within the valid range of 0 to 999,999,999. This could cause incorrect time calculations or unexpected behavior when invalid nanosecond values were used.

References

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