CVE-2026-99107 ntfs: fix incorrect MFT record pointer passed to ntfs_attr_record_resize
- Exploited in the wild
- Not known
- Fix
- Available
What is CVE-2026-99107?
CVE-2026-99107 is a vulnerability in Linux, published on 28 Oct 2026.
Official description
In the Linux kernel, the following vulnerability has been resolved:
ntfs: fix incorrect MFT record pointer passed to ntfs_attr_record_resize
ntfs_new_attr_flags() passes the wrong MFT record to ntfs_attr_record_resize(). When the attribute is in an extent record, ctx->mrec points to the extent but the function receives the base record pointer m, causing incorrect size calculations in memmove.
Fix by passing ctx->mrec (the actual MFT record containing the attribute) instead of m (the base MFT record) to ntfs_attr_record_resize().
Which versions are affected by CVE-2026-99107?
How do I fix CVE-2026-99107?
Upgrade to a fixed version.
Is CVE-2026-99107 being exploited?
There is no known exploitation of CVE-2026-99107 in the wild and no public exploit code.
Sources
Also known as DEBIAN-CVE-2026-99107, GHSA-j5gh-3v4f-98gj, UBUNTU-CVE-2026-99107.