ext4 subsystem


List(s): linux-ext4@vger.kernel.org
Fixed bugs: 184
Parent subsystem(s): fs (144)
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 9 8h34m 11h16m
WARNING in __ext4_handle_dirty_metadata ext4 prio:low -1 1 17d 13d
kernel BUG in ext4_write_inline_data_end (3) ext4 prio:normal -1 syz 1 11d 24d PATCH [17d]
KASAN: use-after-free Read in ext4_search_dir (3) prio:high actionable ext4 19 2 7d20h 32d
INFO: task hung in ext4_write_end prio:high ext4 1 syz error 3 39d 39d
INFO: task hung in ext4_load_tail_bh ext4 prio:high 1 syz, C 1 22d 39d
KASAN: use-after-free Read in ext4_xattr_list_entries (2) actionable prio:high ext4 19 6 6d01h 61d
kernel BUG in ext4_write_inline_data (5) prio:high ext4 -1 syz error 16 54m 61d
INFO: task kworker/u8:NUM:NUM blocked in I/O wait for more than NUM seconds. (2) prio:high ext4 -1 5 76d 76d
BUG: unable to handle kernel NULL pointer dereference in qlist_free_all (10) prio:low mm ext4 10 syz, C 3 67d 81d
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 75d 101d PATCH [12d]
WARNING in jbd2_journal_dirty_metadata (3) prio:high ext4 -1 21 4d08h 109d
KASAN: use-after-free Read in xattr_find_entry (2) prio:high ext4 19 syz, C error error 3 158d 168d PATCH [121d]
INFO: task hung in block_read_full_folio (3) prio:high ext4 1 syz, C error error 9 21d 179d
kernel BUG in ext4_es_cache_extent (4) prio:high ext4 -1 syz, C error error 15 138d 182d 💬 8 [150d]
possible deadlock in evict (4) prio:high ext4 4 43 7d07h 256d
INFO: task hung in __start_renaming prio:high ext4 1 syz, C done error 71 45d 259d 💬 11 [257d]
possible deadlock in ext4_xattr_set_handle (7) prio:high ext4 4 syz, C unreliable 2198 1h26m 269d PATCH [27d]
possible deadlock in ext4_destroy_inline_data (2) prio:low ext4 4 syz, C error 9182 18m 277d PATCH [52d]
WARNING in get_data prio:high ext4 -1 syz, C error 1613 272d 289d
WARNING in ext4_write_inode (3) prio:high ext4 -1 10 66d 297d
KMSAN: uninit-value in fscrypt_crypt_data_unit ext4 fscrypt prio:high 7 syz, C 202 55d 299d PATCH [46d]
INFO: rcu detected stall in unwind_next_frame (5) prio:low ext4 1 syz, C error error 58 11d 300d
INFO: rcu detected stall in ext4_file_mmap_prepare prio:high ext4 1 syz, C error 2 91d 327d
possible deadlock in do_writepages (2) prio:normal ext4 4 syz, C unreliable 869 16h48m 328d
WARNING in ext4_mb_load_buddy_gfp prio:high ext4 mm -1 syz, C 7 162d 328d PATCH [319d]
possible deadlock in ext4_truncate (2) prio:high ext4 4 syz, C unreliable error 3 113d 349d 💬 4 [349d]
INFO: rcu detected stall in wb_workfn (4) prio:normal ext4 1 syz, C error error 68 5d19h 394d 💬 2 [16d]
INFO: task hung in sb_start_write (2) prio:high kernfs ext4 1 C 132 2d21h 444d
INFO: rcu detected stall in ext4_end_io_rsv_work (3) prio:normal mm ext4 1 syz, C error error 3 217d 454d
kernel BUG in ext4_ext_insert_extent (2) prio:high ext4 -1 syz, C done error 38 148d 485d
INFO: task hung in find_inode_fast (4) ext4 1 syz, C error error 30 5d18h 595d PATCH [41d]
INFO: task hung in do_get_write_access (3) prio:low ext4 1 syz, C error 560 3h58m 624d
divide error in qnx6_mmi_fill_super prio:high ext4 2 syz, C unreliable inconclusive 7 37d 646d PATCH [644d]
WARNING in ext4_iomap_begin (3) prio:high ext4 -1 syz, C inconclusive error 146 18m 647d
possible deadlock in ext4_writepages (2) prio:high ext4 4 syz, C unreliable 19503 10m 659d 💬 1 [30d]
WARNING in ext4_journal_check_start (2) ext4 -1 syz, C inconclusive inconclusive 89 17h43m 661d PATCH [12d]
KASAN: out-of-bounds Read in ext4_xattr_set_entry prio:high ext4 22 syz, C error 7871 3h58m 687d PATCH [227d]
KASAN: use-after-free Read in ext4_inlinedir_to_tree ext4 19 syz, C done error 6 219d 711d 💬 1 [710d]
kernel BUG in ext4_mb_use_inode_pa (2) ext4 -1 syz, C error 417 3h57m 732d
WARNING in ext4_xattr_inode_lookup_create prio:low ext4 -1 syz, C inconclusive error 1002 8d10h 803d PATCH [803d]
INFO: task hung in jbd2_journal_commit_transaction (5) ext4 1 syz, C error error 2291 4h01m 817d
WARNING in ext4_xattr_set_entry (2) ext4 -1 syz, C error 9 817d 850d
INFO: task hung in sync_inodes_sb (5) xfs ext4 1 syz, C error inconclusive 3013 5d14h 1119d
WARNING: locking bug in ext4_ioctl ext4 4 syz, C done done 923 611d 1162d PATCH [681d]
WARNING: locking bug in __ext4_ioctl ext4 4 syz, C done error 849 628d 1162d
kernel BUG in ext4_do_writepages prio:high ext4 -1 syz, C error 3852 45m 1331d PATCH [13d]
kernel BUG in __ext4_journal_stop ext4 -1 syz, C error done 44 9d12h 1350d 💬 7 [880d]
Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Discussions
WARNING: proc registration bug in jbd2_journal_destroy ext4 prio:low -1 1 11d 7d16h
KCSAN: data-race in _copy_to_iter / string (7) ext4 race:benign prio:low 6 1 13d 13d
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 37d 49d
KCSAN: data-race in data_push_tail / uuid_string (6) race:benign prio:high ext4 6 2 44d 70d
KCSAN: data-race in _prb_read_valid / prb_reserve_in_last (2) prio:low block ext4 6 43 2d22h 382d
KCSAN: data-race in copy_folio_from_iter_atomic / copy_folio_from_iter_atomic prio:low ext4 6 203 21h04m 431d
KCSAN: data-race in find_get_block_common / has_bh_in_lru prio:low ext4 6 317 2d00h 470d
KCSAN: data-race in _prb_read_valid / data_alloc prio:low ext4 6 568 8h13m 471d
KCSAN: data-race in data_push_tail / vsnprintf (9) prio:low ext4 6 245 17h50m 534d
KCSAN: data-race in data_alloc / data_push_tail (3) prio:low block ext4 6 75 16d 701d
KCSAN: data-race in touch_atime / touch_atime (3) prio:high ext4 6 752 2d08h 805d
KCSAN: data-race in filemap_splice_read / filemap_splice_read prio:low ext4 6 1594 20h53m 976d
KCSAN: data-race in data_alloc / prb_reserve prio:low net ext4 6 1298 1d20h 1963d
KCSAN: data-race in _prb_read_valid / prb_reserve bridge ext4 prio:high 6 3927 21h27m 2099d
KCSAN: data-race in __find_get_block / has_bh_in_lru ext4 6 syz 2497 471d 2380d