Description (CNA)
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 (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 4342306f0f0d5ff4315a204d315c1b51b914fca5 before 8414983c2e649364d8af29080a0869266b31abb6; affected 4342306f0f0d5ff4315a204d315c1b51b914fca5 before 6bb6b1c6b0c31e36736b87a39dd1cbbd9d5ec22f; affected 4342306f0f0d5ff4315a204d315c1b51b914fca5 before 73fee7e1e5ea11b51c51c46e0577a197ca3602cf; affected 4342306f0f0d5ff4315a204d315c1b51b914fca5 before 0226635c304cfd5c9db9b78c259cb713819b057e |
| Linux / Linux | affected 5.15; unaffected 0 before 5.15; unaffected 5.15.87 through 5.15.*; unaffected 6.0.19 through 6.0.*; unaffected 6.1.5 through 6.1.*; unaffected 6.2 through * |
CWE
No CWE identifiers supplied.