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VulnerabilityPublished Updated

CVE-2025-71312: Linux kernel · fs/ntfs3: fix ntfs_mount_options leak in ntfs_fill_super()

Affects Linux kernelSource GCVE Database

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Authoritative record:CVE-2025-71312· Low

Not known to be exploited · CVSS 5.5 Low.

Data as of 12 Nov 2026, 19:48 UTC

CVSS 3.1 base score
5.5Low
How severe the flaw is on the 0–10 CVSS scale.

Thin evidence

One scorer or none
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 27 May 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq 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 12 Nov 2026.

What to do

Affected software

ProductAffectedFixed in
Ubuntu 24.04 LTSlinux-aws-6.14pkg:deb/ubuntu/linux-aws-6.14?arch=source&distro=nobleOther threatsAffected
  • 6.14.0-1007.7~24.04.1 – 6.14.0-1018.18~24.04.1
11 affected builds
Fixed in–
Ubuntu 24.04 LTSlinux-azure-6.11pkg:deb/ubuntu/linux-azure-6.11?arch=source&distro=nobleOther threatsAffected
  • 6.11.0-1008.8~24.04.1 – 6.11.0-1018.18~24.04.1
7 affected builds
Fixed in–
Ubuntu 24.04 LTSlinux-gcp-6.11pkg:deb/ubuntu/linux-gcp-6.11?arch=source&distro=nobleOther threatsAffected
  • 6.11.0-1006.6~24.04.2 – 6.11.0-1017.17~24.04.1
7 affected builds
Fixed in–
Ubuntu 24.04 LTSlinux-gcp-6.14pkg:deb/ubuntu/linux-gcp-6.14?arch=source&distro=nobleOther threatsAffected
  • 6.14.0-1007.7~24.04.1 – 6.14.0-1021.22~24.04.1
11 affected builds
Fixed in–
Ubuntu 24.04 LTSlinux-hwe-6.11pkg:deb/ubuntu/linux-hwe-6.11?arch=source&distro=nobleOther threatsAffected
  • 6.11.0-17.17~24.04.2 – 6.11.0-29.29~24.04.1
8 affected builds
Fixed in–
Ubuntu 24.04 LTSlinux-hwe-6.14pkg:deb/ubuntu/linux-hwe-6.14?arch=source&distro=nobleOther threatsAffected
  • 6.14.0-24.24~24.04.3 – 6.14.0-37.37~24.04.1
10 affected builds
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 for this memory leak vulnerability has been implemented in the Linux kernel. Users should update to a patched kernel version that includes this fix. Since the issue is resolved by proper memory cleanup in the kernel code, no additional mitigation steps are required beyond applying the official patch or kernel update.

Description

A memory leak vulnerability was identified and fixed in the Linux kernel's NTFS3 filesystem driver. The issue occurs in the ntfs_fill_super() function where a pointer to ntfs_mount_options is set to NULL without freeing the allocated memory, causing a kmemleak report. This flaw does not affect confidentiality or integrity but results in a resource leak leading to potential denial of service due to memory exhaustion. The fix involves proper cleanup of mount options using a helper function and avoiding unnecessary nullification of the pointer.

References

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