— Unscored

In the Linux kernel, the following vulnerability has been resolved: ntfs: move attribute payload before shrinking its record…

CVE-2026-99101

In the Linux kernel, the following vulnerability has been resolved: ntfs: move attribute payload before shrinking its record ntfsnewattrflags() resizes the non-resident attribute record before moving its name and mapping pairs to their shorter-header offsets when compression or sparse state is cleared. Shrinking the record first moves the following attribute over the tail of the old record. The subsequent memmove() therefore copies bytes from that following attribute instead of the old mapping pairs. Re-enabling compression on an empty file persists those bytes as a malformed mapping pairs array, which ntfsck reports as a missing or invalid run length. Move the payload before shrinking the record, while retaining the existing resize-before-move ordering when growing it.

Assessment

CVSS: Not yet scored
Severity: Unscored
EPSS: 0.16% chance of exploitation in the next 30 days
Known exploited: Not listed in CISA KEV
Exploit availability: Nothing found in Exploit-DB, Metasploit, Nuclei or public PoC repositories
Published: 28 October 2026
Last updated: 1 November 2026
Affected: Linux
Assigner: Linux

At the source

EUVD (ENISA)

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