ext4 subsystem


List(s): linux-ext4@vger.kernel.org
Fixed bugs: 183
Parent subsystem(s): fs (143)
Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Discussions
WARNING in __ext4_handle_dirty_metadata ext4 prio:low -1 1 14d 10d
kernel BUG in ext4_write_inline_data_end (3) ext4 prio:normal -1 syz 1 9d00h 22d PATCH [15d]
KASAN: use-after-free Read in ext4_search_dir (3) prio:high actionable ext4 19 2 5d09h 29d
INFO: task hung in ext4_write_end prio:high ext4 1 syz error 3 36d 36d
INFO: task hung in ext4_load_tail_bh ext4 prio:high 1 syz, C 1 20d 36d
KASAN: use-after-free Read in ext4_xattr_list_entries (2) actionable prio:high ext4 19 6 3d14h 58d
kernel BUG in ext4_write_inline_data (5) prio:high ext4 -1 syz error 12 1d12h 59d
INFO: task kworker/u8:NUM:NUM blocked in I/O wait for more than NUM seconds. (2) prio:high ext4 -1 5 74d 74d
BUG: unable to handle kernel NULL pointer dereference in qlist_free_all (10) prio:low mm ext4 10 syz, C 3 64d 78d
possible deadlock in ext4_map_blocks (3) prio:low ext4 4 1 84d 80d
INFO: task jbd2/sda1-NUM:NUM blocked in I/O wait for more than NUM seconds. prio:low ext4 -1 syz, C 12 73d 98d PATCH [9d20h]
WARNING in jbd2_journal_dirty_metadata (3) prio:high ext4 -1 21 1d21h 106d
KASAN: use-after-free Read in xattr_find_entry (2) prio:high ext4 19 syz, C error error 3 155d 165d PATCH [119d]
INFO: task hung in block_read_full_folio (3) prio:high ext4 1 syz, C error error 9 19d 177d
kernel BUG in ext4_es_cache_extent (4) prio:high ext4 -1 syz, C error error 15 135d 179d 💬 8 [148d]
possible deadlock in evict (4) prio:high ext4 4 43 4d20h 253d
INFO: task hung in __start_renaming prio:high ext4 1 syz, C done error 71 43d 256d 💬 11 [255d]
possible deadlock in ext4_xattr_set_handle (7) prio:high ext4 4 syz, C unreliable 2140 42m 267d PATCH [24d]
possible deadlock in ext4_destroy_inline_data (2) prio:low ext4 4 syz, C error 9050 13m 274d PATCH [50d]
WARNING in ext4_xattr_inode_update_ref (2) prio:low ext4 -1 syz, C error 14513 1h15m 280d PATCH [10d]
WARNING in get_data prio:high ext4 -1 syz, C error 1613 269d 286d
WARNING in ext4_write_inode (3) prio:high ext4 -1 10 64d 295d
KMSAN: uninit-value in fscrypt_crypt_data_unit ext4 fscrypt prio:high 7 syz, C 202 52d 297d PATCH [44d]
INFO: rcu detected stall in unwind_next_frame (5) prio:low ext4 1 syz, C error error 58 9d12h 297d
INFO: rcu detected stall in ext4_file_mmap_prepare prio:high ext4 1 syz, C error 2 89d 324d
possible deadlock in do_writepages (2) prio:normal ext4 4 syz, C unreliable 867 3h25m 325d
WARNING in ext4_mb_load_buddy_gfp prio:high ext4 mm -1 syz, C 7 160d 326d PATCH [316d]
possible deadlock in ext4_truncate (2) prio:high ext4 4 syz, C unreliable error 3 110d 347d 💬 4 [346d]
INFO: rcu detected stall in wb_workfn (4) prio:normal ext4 1 syz, C error error 68 3d09h 392d 💬 2 [13d]
INFO: task hung in sb_start_write (2) prio:high kernfs ext4 1 C 132 10h19m 441d
INFO: rcu detected stall in ext4_end_io_rsv_work (3) prio:normal mm ext4 1 syz, C error error 3 215d 452d
kernel BUG in ext4_ext_insert_extent (2) prio:high ext4 -1 syz, C done error 38 146d 483d
INFO: task hung in find_inode_fast (4) ext4 1 syz, C error error 30 3d07h 592d PATCH [39d]
INFO: task hung in do_get_write_access (3) prio:low ext4 1 syz, C error 542 7h36m 621d
divide error in qnx6_mmi_fill_super prio:high ext4 2 syz, C unreliable inconclusive 7 34d 644d PATCH [641d]
WARNING in ext4_iomap_begin (3) prio:high ext4 -1 syz, C inconclusive error 144 22h03m 645d
possible deadlock in ext4_writepages (2) prio:high ext4 4 syz, C unreliable 19219 6m 656d 💬 1 [27d]
WARNING in ext4_journal_check_start (2) ext4 -1 syz, C inconclusive inconclusive 85 8h32m 658d PATCH [10d]
KASAN: out-of-bounds Read in ext4_xattr_set_entry prio:high ext4 22 syz, C error 7864 11h09m 684d PATCH [224d]
KASAN: use-after-free Read in ext4_inlinedir_to_tree ext4 19 syz, C done error 6 216d 708d 💬 1 [708d]
kernel BUG in ext4_mb_use_inode_pa (2) ext4 -1 syz, C error 415 1d12h 729d
WARNING in ext4_xattr_inode_lookup_create prio:low ext4 -1 syz, C inconclusive error 1002 5d23h 801d PATCH [800d]
INFO: task hung in jbd2_journal_commit_transaction (5) ext4 1 syz, C error error 2272 1h08m 814d
INFO: task hung in do_renameat2 (2) prio:high ext4 1 syz, C inconclusive error 278 216d 823d
WARNING in ext4_xattr_set_entry (2) ext4 -1 syz, C error 9 814d 848d
INFO: task hung in sync_inodes_sb (5) xfs ext4 1 syz, C error inconclusive 3013 3d03h 1116d
WARNING: locking bug in ext4_ioctl ext4 4 syz, C done done 923 608d 1159d PATCH [679d]
WARNING: locking bug in __ext4_ioctl ext4 4 syz, C done error 849 626d 1159d
kernel BUG in ext4_do_writepages prio:high ext4 -1 syz, C error 3822 10h16m 1328d PATCH [11d]
kernel BUG in __ext4_journal_stop ext4 -1 syz, C error done 44 7d02h 1348d 💬 7 [878d]
Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Discussions
WARNING: proc registration bug in jbd2_journal_destroy ext4 prio:low -1 1 9d05h 5d05h
KCSAN: data-race in _copy_to_iter / string (7) ext4 race:benign prio:low 6 1 11d 11d
KCSAN: data-race in __filemap_add_folio / sync_bdevs (4) race:benign prio:low ext4 6 1 38d 38d
KCSAN: data-race in xas_find_marked / xas_init_marks (7) race:benign prio:low mm ext4 6 2 34d 46d
KCSAN: data-race in data_push_tail / uuid_string (6) race:benign prio:high ext4 6 2 42d 68d
KCSAN: data-race in atime_needs_update / inode_update_time prio:low ext4 6 16 4d00h 178d
KCSAN: data-race in _prb_read_valid / prb_reserve_in_last (2) prio:low block ext4 6 43 12h07m 379d
KCSAN: data-race in copy_folio_from_iter_atomic / copy_folio_from_iter_atomic prio:low ext4 6 200 6d17h 429d
KCSAN: data-race in find_get_block_common / has_bh_in_lru prio:low ext4 6 315 1d22h 468d
KCSAN: data-race in _prb_read_valid / data_alloc prio:low ext4 6 564 22h16m 468d
KCSAN: data-race in data_push_tail / vsnprintf (9) prio:low ext4 6 244 2d00h 532d
KCSAN: data-race in data_alloc / data_push_tail (3) prio:low block ext4 6 75 13d 698d
KCSAN: data-race in touch_atime / touch_atime (3) prio:high ext4 6 751 23h52m 802d
KCSAN: data-race in filemap_splice_read / filemap_splice_read prio:low ext4 6 1593 1d18h 974d
KCSAN: data-race in data_alloc / prb_reserve prio:low net ext4 6 1297 1d17h 1960d
KCSAN: data-race in _prb_read_valid / prb_reserve bridge ext4 prio:high 6 3925 2d23h 2097d
KCSAN: data-race in __find_get_block / has_bh_in_lru ext4 6 syz 2497 468d 2377d