CVE-2026-72470: Linux kernel · fs/ntfs3: resize log->one_page_buf when adopting on-disk page size
Affects Linux kernelSource GCVE Database
Not known to be exploited · CVSS 7.8 High · fixed in 6.8.0-147.147 : patch Linux kernel soon.
Data as of 26 Oct 2026, 14:05 UTC
- EPSS
- 0.1% chance of exploitation in 30 days – higher than 6% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 6.8.0-147.147, 6.8.0-1067.70, 7.0.0-1014.14~24.04.1 +26
CVSS:3.1/AV:L/AC:L/PR:L/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
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
Upgrade to a fixed release listed under Affected software.
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 patch is available and should be applied to affected Linux kernel versions to address this vulnerability. The patch ensures that the buffer used for NTFS log replay is resized appropriately when the on-disk log page size exceeds the initially allocated buffer size, preventing overflow. Users should update to the fixed kernel versions as provided by their Linux distribution vendors.
Description
A vulnerability in the Linux kernel's NTFS3 filesystem driver could lead to a buffer overflow when mounting a dirty NTFS volume with a larger on-disk log page size than the initially allocated buffer. This occurs because the buffer used for log replay is not resized when the on-disk page size is larger than the host's PAGE_SIZE, potentially causing memory corruption. The issue affects specific Linux kernel versions and has been assigned CVE-2026-72470. A patch is available that properly resizes the buffer to prevent overflow.
References
- nvd.nist.gov/vuln/detail/CVE-2026-72470 (opens in a new tab)
- git.kernel.org/stable/c/2097a2537d9d1c29c0e20ed0dbf717a0ccd8f374 (opens in a new tab)
- git.kernel.org/stable/c/4f129fc6f756f8541e5bff45b1804cc11b1ec712 (opens in a new tab)
- git.kernel.org/stable/c/5a35454179fe1041d9cd286f5d320ce0d448c12a (opens in a new tab)
- git.kernel.org/stable/c/c99444f6dfca893f6d310aae4a53c620f98f7b4f (opens in a new tab)
- git.kernel.org/stable/c/f1422df595d69b997d23a8f11e12c528ccef7fad (opens in a new tab)
- ubuntu.com/security/CVE-2026-72470 (opens in a new tab)
- cve.org/CVERecord?id=CVE-2026-72470 (opens in a new tab)
- git.kernel.org/linus/5a35454179fe1041d9cd286f5d320ce0d448c12a (opens in a new tab)
- ubuntu.com/security/notices/USN-8888-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8889-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8887-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8886-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8888-2 (opens in a new tab)
- ubuntu.com/security/notices/USN-8887-2 (opens in a new tab)
- ubuntu.com/security/notices/USN-8887-3 (opens in a new tab)
- ubuntu.com/security/notices/USN-8917-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8918-1 (opens in a new tab)