Description (CNA)
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 (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected b041ca562526b3c4a71b41b80ba5e520eac636ad before 5a5f877c5df7605e9bae524a25ec0df9b9cb8ea8; affected b041ca562526b3c4a71b41b80ba5e520eac636ad before 77dc384207d5fa63ba97c3bf3285fe1215a1cbf6 |
| Linux / Linux | affected 7.1; unaffected 0 before 7.1; unaffected 7.1.5 through 7.1.*; unaffected 7.2 through * |
CWE
No CWE identifiers supplied.