ext4 subsystem


List(s): linux-ext4@vger.kernel.org
Fixed bugs: 184
Parent subsystem(s): fs (147)
Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Discussions
KASAN: use-after-free Read in register_bcache bcache ext4 prio:high 19 syz, C 11 4h47m 1d09h
WARNING in __ext4_handle_dirty_metadata ext4 prio:low -1 1 18d 14d
kernel BUG in ext4_write_inline_data_end (3) ext4 prio:normal -1 syz 1 12d 25d PATCH [18d]
KASAN: use-after-free Read in ext4_search_dir (3) prio:high actionable ext4 19 2 8d18h 33d
INFO: task hung in ext4_write_end prio:high ext4 1 syz error 3 40d 39d
INFO: task hung in ext4_load_tail_bh ext4 prio:high 1 syz, C 1 23d 39d
KASAN: use-after-free Read in ext4_xattr_list_entries (2) actionable prio:high ext4 19 6 6d23h 62d
kernel BUG in ext4_write_inline_data (5) prio:high ext4 -1 syz error 21 1h21m 62d
INFO: task kworker/u8:NUM:NUM blocked in I/O wait for more than NUM seconds. (2) prio:high ext4 -1 5 77d 77d
BUG: unable to handle kernel NULL pointer dereference in qlist_free_all (10) prio:low mm ext4 10 syz, C 3 67d 82d
possible deadlock in ext4_map_blocks (3) prio:low ext4 4 1 87d 83d
INFO: task jbd2/sda1-NUM:NUM blocked in I/O wait for more than NUM seconds. prio:low ext4 -1 syz, C 12 76d 102d PATCH [13d]
WARNING in jbd2_journal_dirty_metadata (3) prio:high ext4 -1 21 5d06h 110d
KASAN: use-after-free Read in xattr_find_entry (2) prio:high ext4 19 syz, C error error 3 159d 169d PATCH [122d]
INFO: task hung in block_read_full_folio (3) prio:high ext4 1 syz, C error error 11 4h13m 180d
kernel BUG in ext4_es_cache_extent (4) prio:high ext4 -1 syz, C error error 15 139d 183d 💬 8 [151d]
possible deadlock in evict (4) prio:high ext4 4 43 8d05h 257d
INFO: task hung in __start_renaming prio:high ext4 1 syz, C done error 71 46d 260d 💬 11 [258d]
possible deadlock in ext4_xattr_set_handle (7) prio:high ext4 4 syz, C unreliable 2207 6m 270d PATCH [27d]
possible deadlock in ext4_destroy_inline_data (2) prio:low ext4 4 syz, C error 9210 6m 278d PATCH [53d]
WARNING in get_data prio:high ext4 -1 syz, C error 1613 272d 290d
WARNING in ext4_write_inode (3) prio:high ext4 -1 10 67d 298d
KMSAN: uninit-value in fscrypt_crypt_data_unit ext4 fscrypt prio:high 7 syz, C 202 56d 300d PATCH [47d]
INFO: rcu detected stall in unwind_next_frame (5) prio:low ext4 1 syz, C error error 58 12d 301d
INFO: rcu detected stall in ext4_file_mmap_prepare prio:high ext4 1 syz, C error 2 92d 328d
possible deadlock in do_writepages (2) prio:normal ext4 4 syz, C unreliable 869 1d14h 328d
WARNING in ext4_mb_load_buddy_gfp prio:high ext4 mm -1 syz, C 7 163d 329d PATCH [320d]
possible deadlock in ext4_truncate (2) prio:high ext4 4 syz, C unreliable error 3 114d 350d 💬 4 [350d]
INFO: rcu detected stall in wb_workfn (4) prio:normal ext4 1 syz, C error error 68 6d18h 395d 💬 2 [17d]
INFO: task hung in sb_start_write (2) prio:high kernfs ext4 1 C 132 3d19h 444d
INFO: rcu detected stall in ext4_end_io_rsv_work (3) prio:normal mm ext4 1 syz, C error error 3 218d 455d
kernel BUG in ext4_ext_insert_extent (2) prio:high ext4 -1 syz, C done error 38 149d 486d
INFO: task hung in find_inode_fast (4) ext4 1 syz, C error error 30 6d16h 596d PATCH [42d]
INFO: task hung in do_get_write_access (3) prio:low ext4 1 syz, C error 562 7h10m 625d
divide error in qnx6_mmi_fill_super prio:high ext4 2 syz, C unreliable inconclusive 7 38d 647d PATCH [644d]
WARNING in ext4_iomap_begin (3) prio:high ext4 -1 syz, C inconclusive error 147 20h40m 648d
possible deadlock in ext4_writepages (2) prio:high ext4 4 syz, C unreliable 19578 16m 660d 💬 1 [7m]
WARNING in ext4_journal_check_start (2) ext4 -1 syz, C inconclusive inconclusive 93 12h24m 662d PATCH [13d]
KASAN: out-of-bounds Read in ext4_xattr_set_entry prio:high ext4 22 syz, C error 7874 10h44m 688d PATCH [228d]
KASAN: use-after-free Read in ext4_inlinedir_to_tree ext4 19 syz, C done error 6 220d 712d 💬 1 [711d]
kernel BUG in ext4_mb_use_inode_pa (2) ext4 -1 syz, C error 419 12h04m 733d
WARNING in ext4_xattr_inode_lookup_create prio:low ext4 -1 syz, C inconclusive error 1002 9d08h 804d PATCH [804d]
INFO: task hung in jbd2_journal_commit_transaction (5) ext4 1 syz, C error error 2297 6h52m 818d
WARNING in ext4_xattr_set_entry (2) ext4 -1 syz, C error 9 818d 851d
INFO: task hung in sync_inodes_sb (5) xfs ext4 1 syz, C error inconclusive 3013 6d12h 1120d
WARNING: locking bug in ext4_ioctl ext4 4 syz, C done done 923 612d 1162d PATCH [682d]
WARNING: locking bug in __ext4_ioctl ext4 4 syz, C done error 849 629d 1163d
kernel BUG in ext4_do_writepages prio:high ext4 -1 syz, C error 3863 1h21m 1332d PATCH [14d]
kernel BUG in __ext4_journal_stop ext4 -1 syz, C error done 44 10d 1351d 💬 7 [881d]
Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Discussions
WARNING: proc registration bug in jbd2_journal_destroy ext4 prio:low -1 1 12d 8d14h
KCSAN: data-race in _copy_to_iter / string (7) ext4 race:benign prio:low 6 1 14d 14d
KCSAN: data-race in __filemap_add_folio / sync_bdevs (4) race:benign prio:low ext4 6 1 41d 41d
KCSAN: data-race in xas_find_marked / xas_init_marks (7) race:benign prio:low mm ext4 6 2 38d 50d
KCSAN: data-race in data_push_tail / uuid_string (6) race:benign prio:high ext4 6 2 45d 71d
KCSAN: data-race in _prb_read_valid / prb_reserve_in_last (2) prio:low block ext4 6 43 3d21h 383d
KCSAN: data-race in copy_folio_from_iter_atomic / copy_folio_from_iter_atomic prio:low ext4 6 203 1d19h 432d
KCSAN: data-race in find_get_block_common / has_bh_in_lru prio:low ext4 6 317 2d22h 471d
KCSAN: data-race in _prb_read_valid / data_alloc prio:low ext4 6 569 4h56m 472d
KCSAN: data-race in data_push_tail / vsnprintf (9) prio:low ext4 6 247 6h17m 535d
KCSAN: data-race in data_alloc / data_push_tail (3) prio:low block ext4 6 75 17d 701d
KCSAN: data-race in touch_atime / touch_atime (3) prio:high ext4 6 753 3h58m 806d
KCSAN: data-race in filemap_splice_read / filemap_splice_read prio:low ext4 6 1594 1d19h 977d
KCSAN: data-race in data_alloc / prb_reserve prio:low net ext4 6 1299 10h39m 1964d
KCSAN: data-race in _prb_read_valid / prb_reserve bridge ext4 prio:high 6 3928 5h02m 2100d
KCSAN: data-race in __find_get_block / has_bh_in_lru ext4 6 syz 2497 472d 2381d