CVE-2026-97542: Linux kernel · xfs: bail out on bitmap errors in xrep_agfl_fill
Affects Linux kernelSource GCVE Database
Not known to be exploited.
Data as of 26 Oct 2026, 17:16 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 is available for this vulnerability in the specified Linux kernel versions. Users should update to the patched versions listed to remediate the issue.
Description
A vulnerability in the Linux kernel's XFS filesystem code was resolved. The issue involves the function xrep_agfl_fill, where bitmap errors are not properly handled, leading to inconsistent in-memory data. Specifically, the xagb_bitmap_walk call's result is not checked, causing silent error drops. This flaw has been fixed in certain Linux kernel versions.
References
- ubuntu.com/security/CVE-2026-97542 (opens in a new tab)
- cve.org/CVERecord?id=CVE-2026-97542 (opens in a new tab)
- git.kernel.org/stable/c/eaf580538eb1be3d162400d04c4b7dc4c627296b (opens in a new tab)
- git.kernel.org/stable/c/b5309ae6504e9b727d83bdfb2a19f44896a8f019 (opens in a new tab)
- git.kernel.org/stable/c/e49977bc568c2649cf1a37992e538df8e3779ee4 (opens in a new tab)
- git.kernel.org/stable/c/82a0fd3fe908914425798b6be2b9b0a4f69ff84d (opens in a new tab)
- nvd.nist.gov/vuln/detail/CVE-2026-97542 (opens in a new tab)
- git.kernel.org/stable/c/c2bf1299aeff6db186aa0db8d19328e1816f0e39 (opens in a new tab)