Description
In the Linux kernel, the following vulnerability has been resolved: fs/ntfs3: don't hold ni_lock when calling truncate_setsize() syzbot is reporting hung task at do_user_addr_fault() [1], for there is a silent deadlock between PG_locked bit and ni_lock lock. Since filemap_update_page() calls filemap_read_folio() after calling folio_trylock() which will set PG_locked bit, ntfs_truncate() must not call truncate_setsize() which will wait for PG_locked bit to be cleared when holding ni_lock lock.
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
4342306f0f0d5ff4315a204d315c1b51b914fca5 to < 8414983c2e649364d8af29080a0869266b31abb6affected4342306f0f0d5ff4315a204d315c1b51b914fca5 to < 6bb6b1c6b0c31e36736b87a39dd1cbbd9d5ec22faffected4342306f0f0d5ff4315a204d315c1b51b914fca5 to < 73fee7e1e5ea11b51c51c46e0577a197ca3602cfaffected4342306f0f0d5ff4315a204d315c1b51b914fca5 to < 0226635c304cfd5c9db9b78c259cb713819b057eaffected
Linux Linux
Default version status: affected
5.15affected0 to < 5.15unaffected5.15.87 to ≤ 5.15.*unaffected6.0.19 to ≤ 6.0.*unaffected6.1.5 to ≤ 6.1.*unaffected6.2 to ≤ *unaffected