What’s Vulnerable › Vulnerabilities

CVE-2026-89610: ntfs: verify run length exceeding volume boundary

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-09-11 · updated 2026-10-19

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 products

• Linux kernel: before 7.2.4 — fixed in 7.2.4, 7.3

How to fix

Upgrade to a fixed version: Linux kernel 7.2.4, 7.3. Check the vendor advisory for mitigations.

References

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

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