ntfs: take invalidate_lock in ntfs_setattr_size()

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-99102
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-10-28 11:17:29 UTC
Updated2026-10-28 11:17:29 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: ntfs: take invalidate_lock in ntfs_setattr_size() ntfs_setattr_size() updates i_size and resizes the on-disk attribute without holding mapping->invalidate_lock. Page faults take the lock shared, so a fault racing the resize can resolve a VCN against the transient runlist state of ntfs_non_resident_attr_expand() and fail with a spurious SIGBUS, and can interleave with the size-change epilogue (truncate_pagecache(), i_size_write(), pagecache_isize_extended()). Take invalidate_lock exclusively around the whole resize after inode_dio_wait(), matching the fallocate path and other filesystems such as xfs, which wraps truncate in its mmaplock (= invalidate_lock).

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 9c87959601e80b39a45250e362e6ddfec17cb0fa f0b0738ba95731eeafd11352c74f8b48951f67dc git Not specified
CNA Linux Linux affected 9c87959601e80b39a45250e362e6ddfec17cb0fa 9cc5761b8f28f9cef72061094eb5e37e2cd44d97 git Not specified
CNA Linux Linux affected 7.1 Not specified
CNA Linux Linux unaffected 7.1 semver Not specified
CNA Linux Linux unaffected 7.2.13 7.2.* semver Not specified
CNA Linux Linux unaffected 7.3 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/f0b0738ba95731eeafd11352c74f8b48951f67dc 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/9cc5761b8f28f9cef72061094eb5e37e2cd44d97 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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