syzbot

 sign-in | mailing list | source | docs | 🏰
🐞 Open [1327]
≡ Subsystems
🐞 Fixed [7156]
🐞 Invalid [18924]
⬇ Missing Backports [221]
≡ Crashes
Kernel Health Bugs/Month Bug Lifetimes Fuzzing
Total Repo Heatmap Subsystems Heatmap
✨ AI
💬 Send us feedback

ext4 subsystem


List(s): linux-ext4@vger.kernel.org
Fixed bugs: 179
Parent subsystem(s): fs (137)
Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Discussions
KASAN: use-after-free Read in ext4_xattr_list_entries (2) ext4 actionable prio:high 19 2 7d08h 5d01h
kernel BUG in ext4_write_inline_data (5) ext4 prio:high -1 2 5d07h 5d13h
INFO: task kworker/u8:NUM:NUM blocked in I/O wait for more than NUM seconds. (2) prio:high ext4 -1 5 20d 20d
BUG: unable to handle kernel NULL pointer dereference in qlist_free_all (10) prio:low mm ext4 10 C 3 10d 24d
possible deadlock in ext4_map_blocks (3) prio:low ext4 4 1 30d 26d
INFO: task jbd2/sda1-NUM:NUM blocked in I/O wait for more than NUM seconds. prio:low ext4 -1 C 12 19d 44d PATCH [41d]
BUG: sleeping function called from invalid context in jbd2_journal_commit_transaction ext4 prio:high 5 1 53d 49d
WARNING in jbd2_journal_dirty_metadata (3) ext4 prio:high -1 2 15h22m 52d
KASAN: use-after-free Read in xattr_find_entry (2) ext4 prio:high 19 C error error 3 101d 111d PATCH [65d]
INFO: task hung in block_read_full_folio (3) prio:high ext4 1 C error error 8 6d10h 123d
kernel BUG in ext4_es_cache_extent (4) prio:high ext4 -1 C error error 15 82d 125d 💬 8 [94d]
possible deadlock in wait_transaction_locked (3) ext4 prio:high 4 C error 461 1h56m 166d PATCH [2d08h]
kernel BUG in ext4_mb_normalize_request (2) prio:high ext4 -1 15 79d 168d
possible deadlock in evict (4) prio:high ext4 4 22 19h21m 199d
possible deadlock in ext4_xattr_set_handle (7) prio:high ext4 4 C unreliable 909 40m 213d PATCH [2d21h]
possible deadlock in ext4_destroy_inline_data (2) prio:low ext4 4 C error 5521 now 220d PATCH [4d15h]
possible deadlock in ext4_evict_inode (5) ext4 prio:high 4 C error 496 16m 221d PATCH [2d21h]
WARNING in ext4_xattr_inode_update_ref (2) ext4 prio:low -1 C error 10042 21m 226d PATCH [18h10m]
WARNING in get_data ext4 prio:high -1 C error 1613 215d 232d
WARNING in ext4_write_inode (3) prio:high ext4 -1 10 10d 241d
KMSAN: uninit-value in fscrypt_crypt_data_unit ext4 fscrypt prio:high 7 C 198 5h47m 243d 💬 6 [5d01h]
INFO: rcu detected stall in unwind_next_frame (5) ext4 prio:low 1 C error error 52 1d02h 243d
INFO: rcu detected stall in ext4_file_mmap_prepare ext4 prio:high 1 C error 2 35d 271d
possible deadlock in do_writepages (2) ext4 prio:normal 4 C unreliable 773 19h08m 271d
WARNING in ext4_mb_load_buddy_gfp ext4 mm prio:high -1 C 7 106d 272d PATCH [262d]
possible deadlock in ext4_truncate (2) prio:high ext4 4 C unreliable error 3 56d 293d 💬 4 [292d]
INFO: rcu detected stall in wb_workfn (4) prio:normal ext4 1 C error error 65 1d18h 338d 💬 1 [198d]
KASAN: slab-use-after-free Read in __ext4_check_dir_entry prio:high ext4 19 C error error 6 39d 349d PATCH [335d]
INFO: rcu detected stall in ext4_end_io_rsv_work (3) prio:normal ext4 mm 1 C error error 3 161d 398d
kernel BUG in ext4_ext_insert_extent (2) ext4 prio:high -1 C done error 38 92d 429d
WARNING in __jbd2_log_wait_for_space ocfs2 ext4 -1 C inconclusive done 6 207d 527d
KASAN: use-after-free Read in ext4_find_extent (4) ext4 prio:high 19 C done error 307 77d 531d PATCH [204d]
INFO: task hung in find_inode_fast (4) ext4 1 C error error 22 26d 538d
INFO: task hung in do_get_write_access (3) prio:low ext4 1 C error 467 1d01h 568d
divide error in qnx6_mmi_fill_super ext4 prio:high 2 C unreliable inconclusive 7 83d 590d PATCH [587d]
WARNING in ext4_iomap_begin (3) ext4 prio:high -1 C inconclusive error 131 30d 591d
possible deadlock in ext4_writepages (2) ext4 prio:high 4 C unreliable 11305 now 603d 💬 1 [5d01h]
WARNING in ext4_journal_check_start (2) ext4 -1 C inconclusive inconclusive 79 5d14h 604d PATCH [401d]
possible deadlock in ext4_xattr_inode_lookup_create ext4 prio:high 4 C done error 287 24d 624d
KASAN: out-of-bounds Read in ext4_xattr_set_entry prio:high ext4 22 C error 7604 9h32m 630d PATCH [170d]
KASAN: use-after-free Read in ext4_inlinedir_to_tree ext4 19 C done error 6 162d 654d 💬 1 [654d]
kernel BUG in ext4_mb_use_inode_pa (2) ext4 -1 C error 314 2d16h 675d
WARNING in ext4_xattr_inode_lookup_create prio:low ext4 -1 C inconclusive error 999 1d16h 747d PATCH [746d]
INFO: task hung in jbd2_journal_commit_transaction (5) ext4 1 C error error 2193 1d06h 760d
INFO: task hung in do_renameat2 (2) prio:high ext4 1 C inconclusive error 278 162d 769d
WARNING in ext4_xattr_set_entry (2) ext4 -1 C error 9 761d 794d
INFO: task hung in sync_inodes_sb (5) xfs ext4 1 C error inconclusive 2951 10d 1062d
WARNING: locking bug in ext4_ioctl ext4 4 C done done 923 555d 1105d PATCH [625d]
WARNING: locking bug in __ext4_ioctl ext4 4 C done error 849 572d 1105d
kernel BUG in ext4_do_writepages ext4 prio:high -1 C error 3232 8h43m 1275d 💬 9 [5d01h]
kernel BUG in __ext4_journal_stop ext4 -1 C error done 42 29d 1294d 💬 7 [824d]
Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Discussions
KCSAN: data-race in data_push_tail / uuid_string (6) ext4 race:benign prio:high 6 1 14d 14d
KCSAN: data-race in _copy_to_iter / string (6) ext4 race:benign prio:high 6 1 28d 28d
KCSAN: data-race in _copy_to_iter / kmmpd (4) prio:low ext4 6 2 26d 40d
KCSAN: data-race in memchr / vsnprintf (2) prio:low ext4 net 6 2 44d 41d
KCSAN: data-race in has_bh_in_lru / invalidate_bh_lru (9) prio:high ext4 6 6 4d09h 122d
KCSAN: data-race in atime_needs_update / inode_update_time prio:low ext4 6 12 6d14h 124d
KCSAN: data-race in _prb_read_valid / prb_reserve_in_last (2) ext4 prio:low 6 34 2d19h 326d
KCSAN: data-race in copy_folio_from_iter_atomic / copy_folio_from_iter_atomic ext4 prio:low 6 172 1d20h 375d
KCSAN: data-race in find_get_block_common / has_bh_in_lru ext4 prio:low 6 301 7d06h 414d
KCSAN: data-race in _prb_read_valid / data_alloc net ext4 prio:low 6 508 3h30m 414d
KCSAN: data-race in data_push_tail / vsnprintf (9) prio:low ext4 6 228 9d18h 478d
KCSAN: data-race in __filemap_add_folio / nr_blockdev_pages (3) ext4 prio:low 6 175 5d05h 917d
KCSAN: data-race in filemap_splice_read / filemap_splice_read ext4 prio:low 6 1566 1d00h 920d
KCSAN: data-race in data_push_tail / string ext4 audit prio:low 6 490 10d 1788d
KCSAN: data-race in data_alloc / prb_reserve net ext4 prio:low 6 1270 1d09h 1907d
KCSAN: data-race in _prb_read_valid / prb_reserve bridge ext4 prio:high 6 3893 3d16h 2043d
KCSAN: data-race in __find_get_block / has_bh_in_lru ext4 6 syz 2497 414d 2323d