ext4 subsystem


List(s): linux-ext4@vger.kernel.org
Fixed bugs: 184
Parent subsystem(s): fs (146)
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 2d16h 3d21h
WARNING in __ext4_handle_dirty_metadata ext4 prio:low -1 1 20d 16d
kernel BUG in ext4_write_inline_data_end (3) ext4 prio:normal -1 syz 1 14d 28d PATCH [21d]
KASAN: use-after-free Read in ext4_search_dir (3) prio:high actionable ext4 19 2 11d 35d
INFO: task hung in ext4_write_end prio:high ext4 1 syz error 3 42d 42d
INFO: task hung in ext4_load_tail_bh ext4 prio:high 1 syz, C 1 26d 42d
KASAN: use-after-free Read in ext4_xattr_list_entries (2) actionable prio:high ext4 19 6 9d11h 64d
kernel BUG in ext4_write_inline_data (5) prio:high ext4 -1 syz error 27 1d19h 65d
INFO: task kworker/u8:NUM:NUM blocked in I/O wait for more than NUM seconds. (2) prio:high ext4 -1 5 79d 79d
BUG: unable to handle kernel NULL pointer dereference in qlist_free_all (10) prio:low mm ext4 10 syz, C 3 70d 84d
possible deadlock in ext4_map_blocks (3) prio:low ext4 4 1 90d 86d
INFO: task jbd2/sda1-NUM:NUM blocked in I/O wait for more than NUM seconds. prio:low ext4 -1 syz, C 12 78d 104d PATCH [15d]
WARNING in jbd2_journal_dirty_metadata (3) prio:high ext4 -1 21 7d18h 112d
KASAN: use-after-free Read in xattr_find_entry (2) prio:high ext4 19 syz, C error error 3 161d 171d PATCH [125d]
INFO: task hung in block_read_full_folio (3) prio:high ext4 1 syz, C error error 16 now 183d
kernel BUG in ext4_es_cache_extent (4) prio:high ext4 -1 syz, C error error 15 141d 185d 💬 8 [153d]
possible deadlock in evict (4) prio:high ext4 4 46 23h51m 259d
INFO: task hung in __start_renaming prio:high ext4 1 syz, C done error 71 49d 262d 💬 11 [261d]
possible deadlock in ext4_xattr_set_handle (7) prio:high ext4 4 syz, C unreliable 2245 1h12m 273d PATCH [30d]
possible deadlock in ext4_destroy_inline_data (2) prio:low ext4 4 syz, C error 9290 25m 280d PATCH [56d]
WARNING in get_data prio:high ext4 -1 syz, C error 1613 275d 292d
WARNING in ext4_write_inode (3) prio:high ext4 -1 10 70d 300d
KMSAN: uninit-value in fscrypt_crypt_data_unit ext4 fscrypt prio:high 7 syz, C 202 58d 303d PATCH [50d]
INFO: rcu detected stall in unwind_next_frame (5) prio:low ext4 1 syz, C error error 59 21h33m 303d
INFO: rcu detected stall in ext4_file_mmap_prepare prio:high ext4 1 syz, C error 2 95d 330d
possible deadlock in do_writepages (2) prio:normal ext4 4 syz, C unreliable 879 6h01m 331d
WARNING in ext4_mb_load_buddy_gfp prio:high ext4 mm -1 syz, C 7 166d 332d PATCH [322d]
possible deadlock in ext4_truncate (2) prio:high ext4 4 syz, C unreliable error 3 116d 353d 💬 4 [352d]
INFO: rcu detected stall in wb_workfn (4) prio:normal ext4 1 syz, C error error 68 9d06h 398d 💬 2 [19d]
INFO: rcu detected stall in ext4_end_io_rsv_work (3) prio:normal mm ext4 1 syz, C error error 3 221d 458d
kernel BUG in ext4_ext_insert_extent (2) prio:high ext4 -1 syz, C done error 38 152d 489d
INFO: task hung in find_inode_fast (4) ext4 1 syz, C error error 30 9d04h 598d PATCH [45d]
INFO: task hung in do_get_write_access (3) prio:low ext4 1 syz, C error 590 2h08m 627d
divide error in qnx6_mmi_fill_super prio:high ext4 2 syz, C unreliable inconclusive 7 40d 649d PATCH [647d]
WARNING in ext4_iomap_begin (3) prio:high ext4 -1 syz, C inconclusive error 150 1d14h 651d
possible deadlock in ext4_writepages (2) prio:high ext4 4 syz, C unreliable 19766 now 662d 💬 1 [2d12h]
WARNING in ext4_journal_check_start (2) ext4 -1 syz, C inconclusive inconclusive 93 3d00h 664d PATCH [16d]
KASAN: out-of-bounds Read in ext4_xattr_set_entry prio:high ext4 22 syz, C error 7879 9h02m 690d PATCH [230d]
KASAN: use-after-free Read in ext4_inlinedir_to_tree ext4 19 syz, C done error 6 222d 714d 💬 1 [714d]
kernel BUG in ext4_mb_use_inode_pa (2) ext4 -1 syz, C error 421 1d03h 735d
WARNING in ext4_xattr_inode_lookup_create prio:low ext4 -1 syz, C inconclusive error 1002 11d 807d PATCH [806d]
INFO: task hung in jbd2_journal_commit_transaction (5) ext4 1 syz, C error error 2321 2h59m 820d
WARNING in ext4_xattr_set_entry (2) ext4 -1 syz, C error 9 820d 854d
INFO: task hung in sync_inodes_sb (5) xfs ext4 1 syz, C error inconclusive 3014 3h27m 1122d
WARNING: locking bug in ext4_ioctl ext4 4 syz, C done done 923 614d 1165d PATCH [684d]
WARNING: locking bug in __ext4_ioctl ext4 4 syz, C done error 849 631d 1165d
kernel BUG in ext4_do_writepages prio:high ext4 -1 syz, C error 3882 8h52m 1334d PATCH [17d]
kernel BUG in __ext4_journal_stop ext4 -1 syz, C error done 44 12d 1354d 💬 7 [884d]
Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Discussions
WARNING: proc registration bug in jbd2_journal_destroy ext4 prio:low -1 1 15d 11d
KCSAN: data-race in _copy_to_iter / string (7) ext4 race:benign prio:low 6 1 17d 17d
KCSAN: data-race in __filemap_add_folio / sync_bdevs (4) race:benign prio:low ext4 6 1 44d 44d
KCSAN: data-race in xas_find_marked / xas_init_marks (7) race:benign prio:low mm ext4 6 2 40d 52d
KCSAN: data-race in data_push_tail / uuid_string (6) race:benign prio:high ext4 6 2 48d 74d
KCSAN: data-race in _prb_read_valid / prb_reserve_in_last (2) prio:low block ext4 6 43 6d09h 385d
KCSAN: data-race in copy_folio_from_iter_atomic / copy_folio_from_iter_atomic prio:low ext4 6 203 4d07h 434d
KCSAN: data-race in find_get_block_common / has_bh_in_lru prio:low ext4 6 320 1d12h 474d
KCSAN: data-race in _prb_read_valid / data_alloc prio:low ext4 6 570 20h26m 474d
KCSAN: data-race in data_push_tail / vsnprintf (9) prio:low ext4 6 247 2d18h 538d
KCSAN: data-race in data_alloc / data_push_tail (3) prio:low block ext4 6 75 19d 704d
KCSAN: data-race in touch_atime / touch_atime (3) prio:high ext4 6 754 1d14h 808d
KCSAN: data-race in filemap_splice_read / filemap_splice_read prio:low ext4 6 1595 4h55m 980d
KCSAN: data-race in data_alloc / prb_reserve prio:low net ext4 6 1299 2d22h 1966d
KCSAN: data-race in _prb_read_valid / prb_reserve bridge ext4 prio:high 6 3929 1d07h 2103d
KCSAN: data-race in __find_get_block / has_bh_in_lru ext4 6 syz 2497 474d 2383d