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CVE-2026-89610

ntfs: verify run length exceeding volume boundary

CRITICAL
9.8
CVSS Score
Published: September 11, 2026 at 07:45 PM UTC
Updated: October 19, 2026 at 09:17 AM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
CRITICAL9.8
Exploit prediction
EPSS 0.6%

Description

In the Linux kernel, the following vulnerability has been resolved: ntfs: verify run length exceeding volume boundary The mapping pairs decoder validates that the starting LCN is within the volume but does not check if the run extends beyond the volume boundary. A malformed NTFS image with a crafted mapping pairs array could cause the kernel to access memory beyond the volume boundary, potentially leading to memory corruption and privilege escalation. Add validation to ensure lcn + length stays within nr_clusters.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Linux Kernel· Linux
90%
01da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Vendor states this is fixed in 6e844d4b82434a781b80d02145fd1b17cf90e3c3 (fixed)
Vendor states this is fixed in fea9e4488f384c0ef1c0e3d96b565127c1b98447 (fixed)
Vendor states this is fixed in 7.2.4 (unaffected)
Vendor states this is fixed in 7.3 (unaffected)
Vendor states this is fixed in 7.3-rc1 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (2)

Source: cverecord
https://git.kernel.org/stable/c/6e844d4b82434a781b80d02145fd1b17cf90e3c3
Source: cverecord
https://git.kernel.org/stable/c/fea9e4488f384c0ef1c0e3d96b565127c1b98447

CVSS

9.8CRITICALLinux
Vector?

Quick Info

StatusRECEIVED

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