ext4 subsystem


List(s): linux-ext4@vger.kernel.org
Fixed bugs: 184
Parent subsystem(s): fs (149)
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 7d21h 9d01h PATCH [2d06h]
WARNING in __ext4_handle_dirty_metadata ext4 prio:low -1 1 25d 21d
kernel BUG in ext4_write_inline_data_end (3) prio:normal ext4 -1 syz 1 20d 33d PATCH [26d]
KASAN: use-after-free Read in ext4_search_dir (3) prio:high actionable ext4 19 2 16d 40d
INFO: task hung in ext4_write_end prio:high ext4 1 syz error 7 1d10h 47d
INFO: task hung in ext4_load_tail_bh ext4 prio:high 1 syz, C 1 31d 47d
KASAN: use-after-free Read in ext4_xattr_list_entries (2) actionable prio:high ext4 19 6 14d 69d
kernel BUG in ext4_write_inline_data (5) prio:high ext4 -1 syz error 28 15h01m 70d
INFO: task kworker/u8:NUM:NUM blocked in I/O wait for more than NUM seconds. (2) prio:high ext4 -1 5 85d 85d
BUG: unable to handle kernel NULL pointer dereference in qlist_free_all (10) prio:low mm ext4 10 syz, C 3 75d 89d
possible deadlock in ext4_map_blocks (3) prio:low ext4 4 1 95d 91d
INFO: task jbd2/sda1-NUM:NUM blocked in I/O wait for more than NUM seconds. prio:low ext4 -1 syz, C 12 84d 109d PATCH [20d]
WARNING in jbd2_journal_dirty_metadata (3) prio:high ext4 -1 21 12d 117d
KASAN: use-after-free Read in xattr_find_entry (2) prio:high ext4 19 syz, C error error 3 166d 176d PATCH [130d]
INFO: task hung in block_read_full_folio (3) prio:high ext4 1 syz, C error error 18 4d06h 188d
kernel BUG in ext4_es_cache_extent (4) prio:high ext4 -1 syz, C error error 15 146d 190d 💬 8 [159d]
possible deadlock in evict (4) prio:high ext4 4 46 6d04h 264d
INFO: task hung in __start_renaming prio:high ext4 1 syz, C done error 71 54d 267d 💬 11 [266d]
possible deadlock in ext4_xattr_set_handle (7) prio:high ext4 4 syz, C unreliable 2331 1h53m 278d PATCH [35d]
possible deadlock in ext4_destroy_inline_data (2) prio:low ext4 4 syz, C error 9417 1h21m 285d PATCH [61d]
WARNING in get_data prio:high ext4 -1 syz, C error 1613 280d 297d
WARNING in ext4_write_inode (3) prio:high ext4 -1 10 75d 306d
KMSAN: uninit-value in fscrypt_crypt_data_unit ext4 fscrypt prio:high 7 syz, C 202 63d 308d PATCH [55d]
INFO: rcu detected stall in unwind_next_frame (5) prio:low ext4 1 syz, C error error 59 6d01h 308d
INFO: rcu detected stall in ext4_file_mmap_prepare prio:high ext4 1 syz, C error 2 100d 336d
possible deadlock in do_writepages (2) prio:normal ext4 4 syz, C unreliable 882 6h00m 336d
WARNING in ext4_mb_load_buddy_gfp prio:high ext4 mm -1 syz, C 7 171d 337d PATCH [327d]
possible deadlock in ext4_truncate (2) prio:high ext4 4 syz, C unreliable error 3 121d 358d 💬 4 [357d]
INFO: rcu detected stall in wb_workfn (4) prio:normal ext4 1 syz, C error error 68 14d 403d 💬 2 [25d]
INFO: rcu detected stall in ext4_end_io_rsv_work (3) prio:normal mm ext4 1 syz, C error error 3 226d 463d
kernel BUG in ext4_ext_insert_extent (2) prio:high ext4 -1 syz, C done error 38 157d 494d
INFO: task hung in find_inode_fast (4) ext4 1 syz, C error error 30 14d 603d PATCH [50d]
INFO: task hung in do_get_write_access (3) prio:low ext4 1 syz, C error 629 1h01m 633d
divide error in qnx6_mmi_fill_super prio:high ext4 2 syz, C unreliable inconclusive 7 45d 655d PATCH [652d]
WARNING in ext4_iomap_begin (3) prio:high ext4 -1 syz, C inconclusive error 152 13h30m 656d
possible deadlock in ext4_writepages (2) prio:high ext4 4 syz, C unreliable 20127 12m 668d 💬 1 [7d16h]
WARNING in ext4_journal_check_start (2) ext4 -1 syz, C inconclusive inconclusive 93 8d04h 669d PATCH [21d]
KASAN: out-of-bounds Read in ext4_xattr_set_entry prio:high ext4 22 syz, C error 7893 13h20m 695d PATCH [235d]
KASAN: use-after-free Read in ext4_inlinedir_to_tree ext4 19 syz, C done error 6 227d 719d 💬 1 [719d]
kernel BUG in ext4_mb_use_inode_pa (2) ext4 -1 syz, C error 425 1d10h 740d
WARNING in ext4_xattr_inode_lookup_create prio:low ext4 -1 syz, C inconclusive error 1002 17d 812d PATCH [811d]
INFO: task hung in jbd2_journal_commit_transaction (5) ext4 1 syz, C error error 2346 11h52m 825d
WARNING in ext4_xattr_set_entry (2) ext4 -1 syz, C error 9 826d 859d
INFO: task hung in sync_inodes_sb (5) xfs ext4 1 syz, C error inconclusive 3015 5d03h 1127d
WARNING: locking bug in ext4_ioctl ext4 4 syz, C done done 923 619d 1170d PATCH [690d]
WARNING: locking bug in __ext4_ioctl ext4 4 syz, C done error 849 637d 1170d
kernel BUG in ext4_do_writepages prio:high ext4 -1 syz, C error 3896 8h37m 1340d PATCH [22d]
kernel BUG in __ext4_journal_stop ext4 -1 syz, C error done 44 18d 1359d 💬 7 [889d]
Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Discussions
WARNING: proc registration bug in jbd2_journal_destroy ext4 prio:low -1 1 20d 16d
KCSAN: data-race in _copy_to_iter / string (7) ext4 race:benign prio:low 6 1 22d 22d
KCSAN: data-race in __filemap_add_folio / sync_bdevs (4) race:benign prio:low ext4 6 1 49d 49d
KCSAN: data-race in xas_find_marked / xas_init_marks (7) race:benign prio:low mm ext4 6 2 45d 57d
KCSAN: data-race in data_push_tail / uuid_string (6) race:benign prio:high ext4 6 2 53d 79d
KCSAN: data-race in _prb_read_valid / prb_reserve_in_last (2) prio:low block ext4 6 44 15h49m 390d
KCSAN: data-race in copy_folio_from_iter_atomic / copy_folio_from_iter_atomic prio:low ext4 6 206 1d02h 440d
KCSAN: data-race in find_get_block_common / has_bh_in_lru prio:low ext4 6 323 17h40m 479d
KCSAN: data-race in _prb_read_valid / data_alloc prio:low ext4 6 573 1d07h 479d
KCSAN: data-race in data_push_tail / vsnprintf (9) prio:low ext4 6 248 3d11h 543d
KCSAN: data-race in data_alloc / data_push_tail (3) prio:low block ext4 6 75 24d 709d
KCSAN: data-race in touch_atime / touch_atime (3) prio:high ext4 6 757 2d02h 813d
KCSAN: data-race in filemap_splice_read / filemap_splice_read prio:low ext4 6 1599 10h07m 985d
KCSAN: data-race in data_alloc / prb_reserve prio:low net ext4 6 1301 3d03h 1971d
KCSAN: data-race in _prb_read_valid / prb_reserve bridge ext4 prio:high 6 3932 2d13h 2108d
KCSAN: data-race in __find_get_block / has_bh_in_lru ext4 6 syz 2497 479d 2388d