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 4d03h 5d07h
WARNING in __ext4_handle_dirty_metadata ext4 prio:low -1 1 21d 17d
kernel BUG in ext4_write_inline_data_end (3) prio:normal ext4 -1 syz 1 16d 29d PATCH [22d]
KASAN: use-after-free Read in ext4_search_dir (3) prio:high actionable ext4 19 2 12d 37d
INFO: task hung in ext4_write_end prio:high ext4 1 syz error 5 2h54m 43d
INFO: task hung in ext4_load_tail_bh ext4 prio:high 1 syz, C 1 27d 43d
KASAN: use-after-free Read in ext4_xattr_list_entries (2) actionable prio:high ext4 19 6 10d 66d
kernel BUG in ext4_write_inline_data (5) prio:high ext4 -1 syz error 27 3d05h 66d
INFO: task kworker/u8:NUM:NUM blocked in I/O wait for more than NUM seconds. (2) prio:high ext4 -1 5 81d 81d
BUG: unable to handle kernel NULL pointer dereference in qlist_free_all (10) prio:low mm ext4 10 syz, C 3 71d 85d
possible deadlock in ext4_map_blocks (3) prio:low ext4 4 1 91d 87d
INFO: task jbd2/sda1-NUM:NUM blocked in I/O wait for more than NUM seconds. prio:low ext4 -1 syz, C 12 80d 106d PATCH [17d]
WARNING in jbd2_journal_dirty_metadata (3) prio:high ext4 -1 21 9d05h 114d
KASAN: use-after-free Read in xattr_find_entry (2) prio:high ext4 19 syz, C error error 3 163d 173d PATCH [126d]
INFO: task hung in block_read_full_folio (3) prio:high ext4 1 syz, C error error 18 12h36m 184d
kernel BUG in ext4_es_cache_extent (4) prio:high ext4 -1 syz, C error error 15 143d 187d 💬 8 [155d]
possible deadlock in evict (4) prio:high ext4 4 46 2d10h 261d
INFO: task hung in __start_renaming prio:high ext4 1 syz, C done error 71 50d 264d 💬 11 [262d]
possible deadlock in ext4_xattr_set_handle (7) prio:high ext4 4 syz, C unreliable 2265 17m 274d PATCH [31d]
possible deadlock in ext4_destroy_inline_data (2) prio:low ext4 4 syz, C error 9329 25m 282d PATCH [57d]
WARNING in get_data prio:high ext4 -1 syz, C error 1613 276d 294d
WARNING in ext4_write_inode (3) prio:high ext4 -1 10 71d 302d
KMSAN: uninit-value in fscrypt_crypt_data_unit ext4 fscrypt prio:high 7 syz, C 202 59d 304d PATCH [51d]
INFO: rcu detected stall in unwind_next_frame (5) prio:low ext4 1 syz, C error error 59 2d07h 305d
INFO: rcu detected stall in ext4_file_mmap_prepare prio:high ext4 1 syz, C error 2 96d 332d
possible deadlock in do_writepages (2) prio:normal ext4 4 syz, C unreliable 880 1h36m 332d
WARNING in ext4_mb_load_buddy_gfp prio:high ext4 mm -1 syz, C 7 167d 333d PATCH [324d]
possible deadlock in ext4_truncate (2) prio:high ext4 4 syz, C unreliable error 3 118d 354d 💬 4 [353d]
INFO: rcu detected stall in wb_workfn (4) prio:normal ext4 1 syz, C error error 68 10d 399d 💬 2 [21d]
INFO: rcu detected stall in ext4_end_io_rsv_work (3) prio:normal mm ext4 1 syz, C error error 3 222d 459d
kernel BUG in ext4_ext_insert_extent (2) prio:high ext4 -1 syz, C done error 38 153d 490d
INFO: task hung in find_inode_fast (4) ext4 1 syz, C error error 30 10d 600d PATCH [46d]
INFO: task hung in do_get_write_access (3) prio:low ext4 1 syz, C error 596 9h45m 629d
divide error in qnx6_mmi_fill_super prio:high ext4 2 syz, C unreliable inconclusive 7 42d 651d PATCH [648d]
WARNING in ext4_iomap_begin (3) prio:high ext4 -1 syz, C inconclusive error 151 18h07m 652d
possible deadlock in ext4_writepages (2) prio:high ext4 4 syz, C unreliable 19881 13m 664d 💬 1 [3d22h]
WARNING in ext4_journal_check_start (2) ext4 -1 syz, C inconclusive inconclusive 93 4d10h 666d PATCH [17d]
KASAN: out-of-bounds Read in ext4_xattr_set_entry prio:high ext4 22 syz, C error 7885 9h11m 692d PATCH [232d]
KASAN: use-after-free Read in ext4_inlinedir_to_tree ext4 19 syz, C done error 6 224d 716d 💬 1 [715d]
kernel BUG in ext4_mb_use_inode_pa (2) ext4 -1 syz, C error 421 2d13h 736d
WARNING in ext4_xattr_inode_lookup_create prio:low ext4 -1 syz, C inconclusive error 1002 13d 808d PATCH [808d]
INFO: task hung in jbd2_journal_commit_transaction (5) ext4 1 syz, C error error 2324 9h45m 821d
WARNING in ext4_xattr_set_entry (2) ext4 -1 syz, C error 9 822d 855d
INFO: task hung in sync_inodes_sb (5) xfs ext4 1 syz, C error inconclusive 3015 1d09h 1123d
WARNING: locking bug in ext4_ioctl ext4 4 syz, C done done 923 616d 1166d PATCH [686d]
WARNING: locking bug in __ext4_ioctl ext4 4 syz, C done error 849 633d 1166d
kernel BUG in ext4_do_writepages prio:high ext4 -1 syz, C error 3883 1d00h 1336d PATCH [18d]
kernel BUG in __ext4_journal_stop ext4 -1 syz, C error done 44 14d 1355d 💬 7 [885d]
Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Discussions
WARNING: proc registration bug in jbd2_journal_destroy ext4 prio:low -1 1 16d 12d
KCSAN: data-race in _copy_to_iter / string (7) ext4 race:benign prio:low 6 1 18d 18d
KCSAN: data-race in __filemap_add_folio / sync_bdevs (4) race:benign prio:low ext4 6 1 45d 45d
KCSAN: data-race in xas_find_marked / xas_init_marks (7) race:benign prio:low mm ext4 6 2 42d 53d
KCSAN: data-race in data_push_tail / uuid_string (6) race:benign prio:high ext4 6 2 49d 75d
KCSAN: data-race in _prb_read_valid / prb_reserve_in_last (2) prio:low block ext4 6 43 7d19h 387d
KCSAN: data-race in copy_folio_from_iter_atomic / copy_folio_from_iter_atomic prio:low ext4 6 205 9h29m 436d
KCSAN: data-race in find_get_block_common / has_bh_in_lru prio:low ext4 6 321 21h03m 475d
KCSAN: data-race in _prb_read_valid / data_alloc prio:low ext4 6 572 15h03m 476d
KCSAN: data-race in data_push_tail / vsnprintf (9) prio:low ext4 6 247 4d04h 539d
KCSAN: data-race in data_alloc / data_push_tail (3) prio:low block ext4 6 75 21d 705d
KCSAN: data-race in touch_atime / touch_atime (3) prio:high ext4 6 755 1d07h 810d
KCSAN: data-race in filemap_splice_read / filemap_splice_read prio:low ext4 6 1596 20h48m 981d
KCSAN: data-race in data_alloc / prb_reserve prio:low net ext4 6 1299 4d08h 1968d
KCSAN: data-race in _prb_read_valid / prb_reserve bridge ext4 prio:high 6 3929 2d17h 2104d
KCSAN: data-race in __find_get_block / has_bh_in_lru ext4 6 syz 2497 476d 2385d