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
Not known to be exploited · fixed in ffb48dccce1960a9ea24463a2f3c21d124d6b672 : update Linux kernel when convenient.
Data as of 26 Oct 2026, 17:16 UTC
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
Disclosed: evidence found.
CVE published 18 Oct 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: 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 26 Oct 2026.
What to do
Upgrade Linux kernel to ffb48dccce1960a9ea24463a2f3c21d124d6b672, 41bc624377f08125eae164c62ce043791ade93b7 or 6.13.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| LinuxLinux | Affected
| Fixed in
|
| LinuxLinux | Affected
| 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.