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
WARNING in __ext4_handle_dirty_metadata ext4 prio:low -1 1 16d 12d
kernel BUG in ext4_write_inline_data_end (3) ext4 prio:normal -1 syz 1 10d 24d PATCH [16d]
KASAN: use-after-free Read in ext4_search_dir (3) prio:high actionable ext4 19 2 6d22h 31d
INFO: task hung in ext4_write_end prio:high ext4 1 syz error 3 38d 38d
INFO: task hung in ext4_load_tail_bh ext4 prio:high 1 syz, C 1 22d 38d
KASAN: use-after-free Read in ext4_xattr_list_entries (2) actionable prio:high ext4 19 6 5d04h 60d
kernel BUG in ext4_write_inline_data (5) prio:high ext4 -1 syz error 12 3d01h 61d
INFO: task kworker/u8:NUM:NUM blocked in I/O wait for more than NUM seconds. (2) prio:high ext4 -1 5 75d 75d
BUG: unable to handle kernel NULL pointer dereference in qlist_free_all (10) prio:low mm ext4 10 syz, C 3 66d 80d
possible deadlock in ext4_map_blocks (3) prio:low ext4 4 1 86d 82d
INFO: task jbd2/sda1-NUM:NUM blocked in I/O wait for more than NUM seconds. prio:low ext4 -1 syz, C 12 74d 100d PATCH [11d]
WARNING in jbd2_journal_dirty_metadata (3) prio:high ext4 -1 21 3d11h 108d
KASAN: use-after-free Read in xattr_find_entry (2) prio:high ext4 19 syz, C error error 3 157d 167d PATCH [120d]
INFO: task hung in block_read_full_folio (3) prio:high ext4 1 syz, C error error 9 20d 178d
kernel BUG in ext4_es_cache_extent (4) prio:high ext4 -1 syz, C error error 15 137d 181d 💬 8 [149d]
possible deadlock in evict (4) prio:high ext4 4 43 6d10h 255d
INFO: task hung in __start_renaming prio:high ext4 1 syz, C done error 71 44d 258d 💬 11 [256d]
possible deadlock in ext4_xattr_set_handle (7) prio:high ext4 4 syz, C unreliable 2177 20m 269d PATCH [26d]
possible deadlock in ext4_destroy_inline_data (2) prio:low ext4 4 syz, C error 9126 42m 276d PATCH [51d]
WARNING in get_data prio:high ext4 -1 syz, C error 1613 271d 288d
WARNING in ext4_write_inode (3) prio:high ext4 -1 10 65d 296d
KMSAN: uninit-value in fscrypt_crypt_data_unit ext4 fscrypt prio:high 7 syz, C 202 54d 298d PATCH [45d]
INFO: rcu detected stall in unwind_next_frame (5) prio:low ext4 1 syz, C error error 58 11d 299d
INFO: rcu detected stall in ext4_file_mmap_prepare prio:high ext4 1 syz, C error 2 91d 326d
possible deadlock in do_writepages (2) prio:normal ext4 4 syz, C unreliable 868 18h33m 327d
WARNING in ext4_mb_load_buddy_gfp prio:high ext4 mm -1 syz, C 7 162d 328d PATCH [318d]
possible deadlock in ext4_truncate (2) prio:high ext4 4 syz, C unreliable error 3 112d 349d 💬 4 [348d]
INFO: rcu detected stall in wb_workfn (4) prio:normal ext4 1 syz, C error error 68 4d22h 393d 💬 2 [15d]
INFO: task hung in sb_start_write (2) prio:high kernfs ext4 1 C 132 1d23h 443d
INFO: rcu detected stall in ext4_end_io_rsv_work (3) prio:normal mm ext4 1 syz, C error error 3 216d 453d
kernel BUG in ext4_ext_insert_extent (2) prio:high ext4 -1 syz, C done error 38 147d 484d
INFO: task hung in find_inode_fast (4) ext4 1 syz, C error error 30 4d21h 594d PATCH [40d]
INFO: task hung in do_get_write_access (3) prio:low ext4 1 syz, C error 555 1h20m 623d
divide error in qnx6_mmi_fill_super prio:high ext4 2 syz, C unreliable inconclusive 7 36d 645d PATCH [643d]
WARNING in ext4_iomap_begin (3) prio:high ext4 -1 syz, C inconclusive error 145 30m 646d
possible deadlock in ext4_writepages (2) prio:high ext4 4 syz, C unreliable 19390 30m 658d 💬 1 [29d]
WARNING in ext4_journal_check_start (2) ext4 -1 syz, C inconclusive inconclusive 88 1d01h 660d PATCH [11d]
KASAN: out-of-bounds Read in ext4_xattr_set_entry prio:high ext4 22 syz, C error 7867 8h09m 686d PATCH [226d]
KASAN: use-after-free Read in ext4_inlinedir_to_tree ext4 19 syz, C done error 6 218d 710d 💬 1 [709d]
kernel BUG in ext4_mb_use_inode_pa (2) ext4 -1 syz, C error 416 1d12h 731d
WARNING in ext4_xattr_inode_lookup_create prio:low ext4 -1 syz, C inconclusive error 1002 7d12h 802d PATCH [802d]
INFO: task hung in jbd2_journal_commit_transaction (5) ext4 1 syz, C error error 2286 6h10m 816d
WARNING in ext4_xattr_set_entry (2) ext4 -1 syz, C error 9 816d 850d
INFO: task hung in sync_inodes_sb (5) xfs ext4 1 syz, C error inconclusive 3013 4d17h 1118d
WARNING: locking bug in ext4_ioctl ext4 4 syz, C done done 923 610d 1161d PATCH [680d]
WARNING: locking bug in __ext4_ioctl ext4 4 syz, C done error 849 627d 1161d
kernel BUG in ext4_do_writepages prio:high ext4 -1 syz, C error 3839 31m 1330d PATCH [12d]
kernel BUG in __ext4_journal_stop ext4 -1 syz, C error done 44 8d15h 1349d 💬 7 [879d]
Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Discussions
WARNING: proc registration bug in jbd2_journal_destroy ext4 prio:low -1 1 10d 6d19h
KCSAN: data-race in _copy_to_iter / string (7) ext4 race:benign prio:low 6 1 12d 12d
KCSAN: data-race in __filemap_add_folio / sync_bdevs (4) race:benign prio:low ext4 6 1 40d 40d
KCSAN: data-race in xas_find_marked / xas_init_marks (7) race:benign prio:low mm ext4 6 2 36d 48d
KCSAN: data-race in data_push_tail / uuid_string (6) race:benign prio:high ext4 6 2 43d 70d
KCSAN: data-race in _prb_read_valid / prb_reserve_in_last (2) prio:low block ext4 6 43 2d01h 381d
KCSAN: data-race in copy_folio_from_iter_atomic / copy_folio_from_iter_atomic prio:low ext4 6 202 11h45m 430d
KCSAN: data-race in find_get_block_common / has_bh_in_lru prio:low ext4 6 317 1d03h 469d
KCSAN: data-race in _prb_read_valid / data_alloc prio:low ext4 6 567 1d02h 470d
KCSAN: data-race in data_push_tail / vsnprintf (9) prio:low ext4 6 244 3d14h 534d
KCSAN: data-race in data_alloc / data_push_tail (3) prio:low block ext4 6 75 15d 700d
KCSAN: data-race in touch_atime / touch_atime (3) prio:high ext4 6 752 1d10h 804d
KCSAN: data-race in filemap_splice_read / filemap_splice_read prio:low ext4 6 1593 3d07h 975d
KCSAN: data-race in data_alloc / prb_reserve prio:low net ext4 6 1298 22h52m 1962d
KCSAN: data-race in _prb_read_valid / prb_reserve bridge ext4 prio:high 6 3927 now 2098d
KCSAN: data-race in __find_get_block / has_bh_in_lru ext4 6 syz 2497 470d 2379d