CVE-2026-97585: Linux kernel · afs: Fix double-unmap of directory block
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
- 0.1% 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 address this vulnerability. Users should apply the official kernel updates that include this fix for the affected versions. No additional mitigation is required beyond applying the patch.
Description
A vulnerability in the Linux kernel's AFS filesystem component was fixed to address a double-unmap issue of directory blocks. The flaw involved improper handling in the afs_edit_dir_remove() function, which could cause a double kunmap operation if afs_dir_find_block() was called consecutively without clearing the block pointer. This issue has been resolved by changing the cleanup approach to avoid manual kunmapping that leads to double unmapping.
References
- ubuntu.com/security/CVE-2026-97585 (opens in a new tab)
- cve.org/CVERecord?id=CVE-2026-97585 (opens in a new tab)
- git.kernel.org/stable/c/e3cfd3eb7d5be7787cc69530b423f788f14d084f (opens in a new tab)
- git.kernel.org/stable/c/9d6c703e24da3d39067e3c75f4ac2f6001c2472f (opens in a new tab)
- git.kernel.org/stable/c/b60f51e4ad0f6f940899788ccc2762db1e3b69e6 (opens in a new tab)