{"id":"CVE-2026-99102","title":"ntfs: take invalidate_lock in ntfs_setattr_size()","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nntfs: take invalidate_lock in ntfs_setattr_size()\n\nntfs_setattr_size() updates i_size and resizes the on-disk attribute\nwithout holding mapping->invalidate_lock.  Page …","severity":"none","vendor":"Linux","product":"Linux","affected":["Linux >= 9c87959601e80b39a45250e362e6ddfec17cb0fa < f0b0738ba95731eeafd11352c74f8b48951f67dc","Linux >= 9c87959601e80b39a45250e362e6ddfec17cb0fa < 9cc5761b8f28f9cef72061094eb5e37e2cd44d97","Linux 7.1"],"published":"2026-10-28","updated":"2026-10-28","sourceUpdated":"2026-10-28T10:34:17.224Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-99102","references":[{"url":"https://git.kernel.org/stable/c/f0b0738ba95731eeafd11352c74f8b48951f67dc"},{"url":"https://git.kernel.org/stable/c/9cc5761b8f28f9cef72061094eb5e37e2cd44d97"}],"tags":["cve.org"],"ingestedAt":"2026-10-28T11:09:40.457Z","epss":0.00156,"epssPercentile":0.04773,"slug":"CVE-2026-99102","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nntfs: take invalidate_lock in ntfs_setattr_size()\n\nntfs_setattr_size() updates i_size and resizes the on-disk attribute\nwithout holding mapping->invalidate_lock.  Page faults take the lock\nshared, so a fault racing the resize can resolve a VCN against the\ntransient runlist state of ntfs_non_resident_attr_expand() and fail\nwith a spurious SIGBUS, and can interleave with the size-change\nepilogue (truncate_pagecache(), i_size_write(),\npagecache_isize_extended()).\n\nTake invalidate_lock exclusively around the whole resize after\ninode_dio_wait(), matching the fallocate path and other filesystems\nsuch as xfs, which wraps truncate in its mmaplock (= invalidate_lock).\n\n## Affected\n\n- `Linux >= 9c87959601e80b39a45250e362e6ddfec17cb0fa < f0b0738ba95731eeafd11352c74f8b48951f67dc`\n- `Linux >= 9c87959601e80b39a45250e362e6ddfec17cb0fa < 9cc5761b8f28f9cef72061094eb5e37e2cd44d97`\n- `Linux 7.1`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":3,"depthScoreParts":{"impact":2.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}