CVE-2026-72185: Linux kernel · ntfs: fix WARN_ON for resident attribute in ntfs_map_runlist_nolock()
Affects Linux kernelSource GCVE Database
Not known to be exploited · CVSS 9.8 Critical.
Data as of 9 Nov 2026, 14:07 UTC
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 15 Aug 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: 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 9 Nov 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
Ubuntu 24.04 LTSlinux-aws-6.14pkg:deb/ubuntu/linux-aws-6.14?arch=source&distro=nobleOther threats | Affected
| Fixed in– |
Ubuntu 24.04 LTSlinux-aws-6.17pkg:deb/ubuntu/linux-aws-6.17?arch=source&distro=nobleOther threats | Affected
| Fixed in– |
Ubuntu 24.04 LTSlinux-azure-6.11pkg:deb/ubuntu/linux-azure-6.11?arch=source&distro=nobleOther threats | Affected
| Fixed in– |
Ubuntu 24.04 LTSlinux-azure-6.14pkg:deb/ubuntu/linux-azure-6.14?arch=source&distro=nobleOther threats | Affected
| Fixed in– |
Ubuntu 24.04 LTSlinux-azure-6.17pkg:deb/ubuntu/linux-azure-6.17?arch=source&distro=nobleOther threats | Affected
| Fixed in– |
Ubuntu 24.04 LTSlinux-azure-fde-6.14pkg:deb/ubuntu/linux-azure-fde-6.14?arch=source&distro=nobleOther 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 that replaces the WARN_ON() with an error return to safely reject crafted NTFS images causing this condition. Users should update to patched Linux kernel versions that include this fix to prevent mount failures and potential kernel instability.
Description
A critical vulnerability in the Linux kernel's NTFS driver (ntfs_map_runlist_nolock) allows crafted NTFS images with resident attributes where non-resident ones are expected to cause incorrect memory access. This triggers a kernel warning (WARN_ON) and can corrupt internal checks during mount operations. The issue has been fixed by replacing the warning with an error return, causing the mount to fail safely instead of proceeding with corrupted data.
References
- ubuntu.com/security/CVE-2026-72185 (opens in a new tab)
- cve.org/CVERecord?id=CVE-2026-72185 (opens in a new tab)
- git.kernel.org/linus/b8d6c528e9d57d263fee1a648409f84a68b2561d (opens in a new tab)
- git.kernel.org/stable/c/b397b1238a217264bb02f963a1a1eadf71906375 (opens in a new tab)
- git.kernel.org/stable/c/b8d6c528e9d57d263fee1a648409f84a68b2561d (opens in a new tab)