CVE-2026-97552: Linux kernel · xfs: initialise error in xfs_defer_finish_one()
Affects Linux kernelSource GCVE Database
Not known to be exploited.
Data as of 26 Oct 2026, 14:05 UTC
Rated by Threat Radar · CVSS not yet scored by NVD
- EPSS
- 0.2% chance of exploitation in 30 days – higher than 9% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Exploitation evidence
Disclosed: evidence found.
CVE published 25 Sep 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
Affected software
| Product | Affected | Fixed in |
|---|---|---|
Ubuntu 26.04 LTSlinuxpkg:deb/ubuntu/linux?arch=source&distro=resoluteOther threats | Affected
| Fixed in– |
Ubuntu 26.04 LTSlinux-awspkg:deb/ubuntu/linux-aws?arch=source&distro=resoluteOther threats | Affected
| Fixed in– |
Ubuntu 26.04 LTSlinux-azurepkg:deb/ubuntu/linux-azure?arch=source&distro=resoluteOther threats | Affected
| Fixed in– |
Ubuntu 26.04 LTSlinux-azure-fdepkg:deb/ubuntu/linux-azure-fde?arch=source&distro=resoluteOther threats | Affected
| Fixed in– |
Ubuntu 26.04 LTSlinux-gcppkg:deb/ubuntu/linux-gcp?arch=source&distro=resoluteOther threats | Affected
| Fixed in– |
Ubuntu 26.04 LTSlinux-gkepkg:deb/ubuntu/linux-gke?arch=source&distro=resoluteOther threats | Affected
| Fixed in– |
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
A fix has been implemented in the Linux kernel to initialize the error variable properly in xfs_defer_finish_one(). Users should apply the updated kernel versions that include this fix. Since this is a kernel vulnerability, updating to the patched kernel releases is the recommended remediation. No additional mitigations are indicated.
Description
A vulnerability in the Linux kernel's XFS filesystem code was resolved involving an uninitialized error variable in the function xfs_defer_finish_one(). This flaw causes the function to return an indeterminate value when a certain list is empty, which can lead to a false error during online repair operations. The incorrect error handling may cause a successful barrier operation to be treated as a fatal error, resulting in a SHUTDOWN_CORRUPT_INCORE state during repair.
References
- ubuntu.com/security/CVE-2026-97552 (opens in a new tab)
- cve.org/CVERecord?id=CVE-2026-97552 (opens in a new tab)
- git.kernel.org/stable/c/6176d21d7bd609632c5b7e87a3adb9be29ec1e72 (opens in a new tab)
- git.kernel.org/stable/c/6b507c239884f7d4bf8339f6e9eb8bfcb540afde (opens in a new tab)
- git.kernel.org/stable/c/ba949a14446b7346e92e676ee3fe2bb79d9ce450 (opens in a new tab)
- git.kernel.org/stable/c/30748a24b9f04f9a83599ba907cc8fbff0729f3c (opens in a new tab)