Description
In the Linux kernel, the following vulnerability has been resolved: ntfs: avoid self-deadlock during inode eviction An attribute-list update performed while allocating clusters can drop the last reference to the temporary attribute inode. Evicting that inode drops its reference to the base inode and can invoke ntfs_drop_big_inode() for the base inode from within the base inode's own writeback path. If the base inode is unlinked, ntfs_drop_big_inode() calls truncate_setsize(), which waits for the inode's folio writeback to complete. The same writeback worker is responsible for completing that writeback, so it waits for itself indefinitely. Prevent this self-deadlock by grabbing a reference to the base inode at the beginning of ntfs_writepages() and releasing it at the end of the function. This defers eviction until all bios have been submitted, allowing the wait for folio writeback to complete safely.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
b041ca562526b3c4a71b41b80ba5e520eac636ad to < 5a5f877c5df7605e9bae524a25ec0df9b9cb8ea8affectedb041ca562526b3c4a71b41b80ba5e520eac636ad to < 77dc384207d5fa63ba97c3bf3285fe1215a1cbf6affected
Linux Linux
Default version status: affected
7.1affected0 to < 7.1unaffected7.1.5 to ≤ 7.1.*unaffected7.2 to ≤ *unaffected