by Kastro
Paper/Archive/CVE-2026-89610

CVE-2026-89610

Linux Linux — ntfs: verify run length exceeding volume boundary

EPSS 0.6%CVSS 9.8
critical.is priorityof 100
39
CVSS 9.8 (CNA)9.8 / 10 × 3029.4Not in CISA KEV+300.0EPSS percentile 46.1.461 × 209.2No public exploit+100.0SSVC exploitation: unknown+100.0
Description · from the CVE record

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

ProductAffectedFixed inSource
Linux1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – < 6e844d4b82434a781b80d02145fd1b17cf90e3c36e844d4b82434a781b80d02145fd1b17cf90e3c3CNA
Linux1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – < fea9e4488f384c0ef1c0e3d96b565127c1b98447fea9e4488f384c0ef1c0e3d96b565127c1b98447CNA
Linux< 7.2.47.2.4CNA
Linuxsee advisory7.2.4CNA

Scores by source

Linux (CNA)9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References

refgit.kernel.org/stable/c/6e844d4b82434a781b80d02145fd1b17cf90e3c3refgit.kernel.org/stable/c/fea9e4488f384c0ef1c0e3d96b565127c1b98447