CVE-2026-97543: Linux kernel · xfs: destroy seen inode bitmap when we fail to add a dirpath
Affects Linux kernelSource GCVE Database
Not known to be exploited.
Data as of 26 Oct 2026, 13:47 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-hwe-edge kernel versions listed. Users should update to the patched versions to resolve the memory leak. No additional mitigation is required beyond applying the official fix.
Description
A vulnerability in the Linux kernel's XFS filesystem code was fixed involving a memory leak in the function xchk_dirtree_create_path. The leak occurs when creating a directory path object fails to append the name, causing the seen inode bitmap not to be destroyed properly. A similar logic error was also corrected in xrep_dirtree_create_adoption_path. This issue was resolved in specific linux-hwe-edge kernel versions.
References
- ubuntu.com/security/CVE-2026-97543 (opens in a new tab)
- cve.org/CVERecord?id=CVE-2026-97543 (opens in a new tab)
- git.kernel.org/stable/c/3b10ca4302ee2dda4233f70b2033883ee376fa6a (opens in a new tab)
- git.kernel.org/stable/c/1a441c6842da75c5b862cc1c9f7969d6a93b54b9 (opens in a new tab)
- git.kernel.org/stable/c/582f54dce62043f7a0503ab8c76d718d0293da59 (opens in a new tab)
- git.kernel.org/stable/c/0b756de8167f2f06ffceadc71cb17c1fc7be4be8 (opens in a new tab)