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VulnerabilityPublished Updated

CVE-2026-31410: Linux kernel · ksmbd: use volume UUID in FS_OBJECT_ID_INFORMATION

Affects Linux kernelSource CVE Database V5

0

Not known to be exploited · fixed in ce00616bc1df675bfdacc968f2bf7c51f4669227 : update Linux kernel when convenient.

Data as of 26 Oct 2026, 20:59 UTC

Severity
Unrated

Rated by Threat Radar · No CVSS score from NVD or the CNA

EPSS
0.1% chance of exploitation in 30 days – higher than 5% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in ce00616bc1df675bfdacc968f2bf7c51f4669227, c283a6ffe6d5d6e5594d991286b9ce15951572e1, 3d80ebe6d1b7bc9ad20fd9b0c1a0c56d804f8a0a +2

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 6 Apr 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq 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 26 Oct 2026.

What to do

Upgrade to a fixed release listed under Affected software.

Affected software

ProductAffectedFixed in
LinuxLinuxAffected
  • ≥ e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9, < ce00616bc1df675bfdacc968f2bf7c51f4669227
Fixed in
  • ce00616bc1df675bfdacc968f2bf7c51f4669227
LinuxLinuxAffected
  • ≥ e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9, < c283a6ffe6d5d6e5594d991286b9ce15951572e1
Fixed in
  • c283a6ffe6d5d6e5594d991286b9ce15951572e1
LinuxLinuxAffected
  • ≥ e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9, < 3d80ebe6d1b7bc9ad20fd9b0c1a0c56d804f8a0a
Fixed in
  • 3d80ebe6d1b7bc9ad20fd9b0c1a0c56d804f8a0a
LinuxLinuxAffected
  • ≥ e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9, < 3a64125730cabc34fccfbc230c2667c2e14f7308
Fixed in
  • 3a64125730cabc34fccfbc230c2667c2e14f7308
LinuxLinuxAffected
  • ≥ e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9, < 1df0123f96f377282feaae24d8e561fff4a6541f
Fixed in
  • 1df0123f96f377282feaae24d8e561fff4a6541f
LinuxLinuxAffected
  • =5.15
Fixed in–

AI-suggested

A fix has been implemented and is available in the Linux kernel source as indicated by the fixed commit hashes. Users and administrators should update to a kernel version that includes these fixes to resolve the vulnerability.

Description

A vulnerability in the Linux kernel's ksmbd component related to the use of volume identifiers has been resolved. The fix involves using the filesystem's UUID as the primary volume identifier in FS_OBJECT_ID_INFORMATION, with a fallback to the filesystem ID from vfs_statfs() when a UUID is not available.

References

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