Skip to main content
VulnerabilityPublished

CVE-2026-98444: Linux kernel · xfs: drop dquot flush lock when we can't find a buffer to flush

Affects Linux kernelSource CVE Database V5

0

Not known to be exploited · fixed in ffb48dccce1960a9ea24463a2f3c21d124d6b672 : update Linux kernel when convenient.

Data as of 26 Oct 2026, 17:16 UTC

Severity
Medium

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

EPSS
0.1% chance of exploitation in 30 days – higher than 4% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in ffb48dccce1960a9ea24463a2f3c21d124d6b672, 41bc624377f08125eae164c62ce043791ade93b7, 6.13

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 18 Oct 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 Linux kernel to ffb48dccce1960a9ea24463a2f3c21d124d6b672, 41bc624377f08125eae164c62ce043791ade93b7 or 6.13.

Affected software

ProductAffectedFixed in
LinuxLinuxAffected
  • >=6.12.14 <6.13
Fixed in
  • ffb48dccce1960a9ea24463a2f3c21d124d6b672
  • 41bc624377f08125eae164c62ce043791ade93b7
  • 6.13
LinuxLinuxAffected
  • =6.13
Fixed in–

AI-suggested

This vulnerability has been fixed in Linux kernel version 6.13 and corresponding commits. Users should upgrade to version 6.13 or later to apply the official fix. No additional mitigation is required once the system is updated.

Description

A vulnerability in the Linux kernel's XFS filesystem code was fixed where the dquot flush lock was not properly released if the associated buffer could not be found during a flush operation. This could lead to a lock being held indefinitely, potentially causing resource contention or deadlocks.

References

Community reviews

Loading reviews…