CVE-2026-99102Published

ntfs: take invalidate_lock in ntfs_setattr_size()

Exact source revision recorded 28 Oct 2026 11:27:43 UTC. It does not establish the source's current position. Latest evidence.

Recorded JSON

cve-program · CVE-2026-99102

Published

In 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).

Source published: 28 Oct 2026 10:34:17 UTC
Source modified: 28 Oct 2026 10:34:17 UTC
Observed here: 28 Oct 2026 11:27:43 UTC
Source terms: CVE Program Terms of Use

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