syzbot

 sign-in | mailing list | source | docs | 🏰
🐞 Open [1319]
≡ Subsystems
🐞 Fixed [7175]
🐞 Invalid [18950]
⬇ 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 (140)
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 11d 9d07h
kernel BUG in ext4_write_inline_data (5) ext4 prio:high -1 2 9d13h 9d20h
INFO: task kworker/u8:NUM:NUM blocked in I/O wait for more than NUM seconds. (2) prio:high ext4 -1 5 24d 24d
BUG: unable to handle kernel NULL pointer dereference in qlist_free_all (10) prio:low mm ext4 10 C 3 14d 29d
possible deadlock in ext4_map_blocks (3) prio:low ext4 4 1 34d 30d
INFO: task jbd2/sda1-NUM:NUM blocked in I/O wait for more than NUM seconds. prio:low ext4 -1 C 12 23d 49d PATCH [46d]
BUG: sleeping function called from invalid context in jbd2_journal_commit_transaction ext4 prio:high 5 1 57d 53d
WARNING in jbd2_journal_dirty_metadata (3) prio:high ext4 -1 3 22h21m 57d
KASAN: use-after-free Read in xattr_find_entry (2) prio:high ext4 19 C error error 3 106d 116d PATCH [69d]
INFO: task hung in block_read_full_folio (3) prio:high ext4 1 C error error 8 10d 127d
kernel BUG in ext4_es_cache_extent (4) prio:high ext4 -1 C error error 15 86d 130d 💬 8 [98d]
possible deadlock in wait_transaction_locked (3) ext4 prio:high 4 C error 500 1h45m 170d PATCH [1d04h]
kernel BUG in ext4_mb_normalize_request (2) prio:high ext4 -1 15 83d 173d
possible deadlock in evict (4) prio:high ext4 4 22 5d01h 204d
possible deadlock in ext4_xattr_set_handle (7) prio:high ext4 4 C unreliable 1034 2h18m 217d PATCH [2d19h]
possible deadlock in ext4_destroy_inline_data (2) prio:low ext4 4 C error 5923 29m 225d PATCH [14h09m]
possible deadlock in ext4_evict_inode (5) ext4 prio:high 4 C error 496 4d06h 225d PATCH [2d19h]
WARNING in ext4_xattr_inode_update_ref (2) ext4 prio:low -1 C error 10388 18m 231d PATCH [1d08h]
WARNING in get_data ext4 prio:high -1 C error 1613 219d 237d
WARNING in ext4_write_inode (3) prio:high ext4 -1 10 14d 245d
KMSAN: uninit-value in fscrypt_crypt_data_unit ext4 fscrypt prio:high 7 C 202 3d00h 247d 💬 6 [9d08h]
INFO: rcu detected stall in unwind_next_frame (5) ext4 prio:low 1 C error error 52 5d09h 248d
INFO: rcu detected stall in ext4_file_mmap_prepare ext4 prio:high 1 C error 2 39d 275d
possible deadlock in do_writepages (2) ext4 prio:normal 4 C unreliable 776 3d18h 275d
WARNING in ext4_mb_load_buddy_gfp ext4 mm prio:high -1 C 7 110d 276d PATCH [267d]
possible deadlock in ext4_truncate (2) prio:high ext4 4 C unreliable error 3 61d 297d 💬 4 [297d]
INFO: rcu detected stall in wb_workfn (4) prio:normal ext4 1 C error error 65 6d01h 342d 💬 1 [202d]
KASAN: slab-use-after-free Read in __ext4_check_dir_entry prio:high ext4 19 C error error 6 43d 353d PATCH [340d]
INFO: rcu detected stall in ext4_end_io_rsv_work (3) prio:normal ext4 mm 1 C error error 3 165d 402d
kernel BUG in ext4_ext_insert_extent (2) ext4 prio:high -1 C done error 38 96d 433d
WARNING in __jbd2_log_wait_for_space ocfs2 ext4 -1 C inconclusive done 6 211d 532d
KASAN: use-after-free Read in ext4_find_extent (4) ext4 prio:high 19 C done error 307 81d 535d PATCH [209d]
INFO: task hung in find_inode_fast (4) ext4 1 C error error 22 30d 543d
INFO: task hung in do_get_write_access (3) prio:low ext4 1 C error 467 5d07h 572d
divide error in qnx6_mmi_fill_super ext4 prio:high 2 C unreliable inconclusive 7 88d 594d PATCH [591d]
WARNING in ext4_iomap_begin (3) ext4 prio:high -1 C inconclusive error 131 35d 595d
possible deadlock in ext4_writepages (2) ext4 prio:high 4 C unreliable 12146 26m 607d 💬 1 [9d08h]
WARNING in ext4_journal_check_start (2) ext4 -1 C inconclusive inconclusive 79 9d20h 609d PATCH [405d]
possible deadlock in ext4_xattr_inode_lookup_create ext4 prio:high 4 C done error 287 28d 628d
KASAN: out-of-bounds Read in ext4_xattr_set_entry prio:high ext4 22 C error 7627 7h59m 635d PATCH [175d]
KASAN: use-after-free Read in ext4_inlinedir_to_tree ext4 19 C done error 6 167d 659d 💬 1 [658d]
kernel BUG in ext4_mb_use_inode_pa (2) ext4 -1 C error 325 8h10m 679d
WARNING in ext4_xattr_inode_lookup_create prio:low ext4 -1 C inconclusive error 1000 3d17h 751d PATCH [751d]
INFO: task hung in jbd2_journal_commit_transaction (5) ext4 1 C error error 2196 22h33m 765d
INFO: task hung in do_renameat2 (2) prio:high ext4 1 C inconclusive error 278 166d 774d
WARNING in ext4_xattr_set_entry (2) ext4 -1 C error 9 765d 798d
INFO: task hung in sync_inodes_sb (5) xfs ext4 1 C error inconclusive 2970 3d12h 1067d
WARNING: locking bug in ext4_ioctl ext4 4 C done done 923 559d 1109d PATCH [629d]
WARNING: locking bug in __ext4_ioctl ext4 4 C done error 849 576d 1110d
kernel BUG in ext4_do_writepages ext4 prio:high -1 C error 3245 3h00m 1279d 💬 9 [9d08h]
kernel BUG in __ext4_journal_stop ext4 -1 C error done 42 33d 1298d 💬 7 [828d]
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 18d 18d
KCSAN: data-race in _copy_to_iter / string (6) race:benign prio:high ext4 6 1 33d 33d
KCSAN: data-race in _copy_to_iter / kmmpd (4) prio:low ext4 6 2 31d 45d
KCSAN: data-race in memchr / vsnprintf (2) prio:low ext4 net 6 2 48d 45d
KCSAN: data-race in has_bh_in_lru / invalidate_bh_lru (9) prio:high ext4 6 6 8d15h 127d
KCSAN: data-race in atime_needs_update / inode_update_time prio:low ext4 6 12 10d 128d
KCSAN: data-race in _prb_read_valid / prb_reserve_in_last (2) ext4 prio:low 6 34 7d01h 330d
KCSAN: data-race in copy_folio_from_iter_atomic / copy_folio_from_iter_atomic ext4 prio:low 6 178 7h21m 379d
KCSAN: data-race in find_get_block_common / has_bh_in_lru ext4 prio:low 6 301 11d 418d
KCSAN: data-race in _prb_read_valid / data_alloc net ext4 prio:low 6 512 59m 419d
KCSAN: data-race in data_push_tail / vsnprintf (9) prio:low ext4 6 229 3d08h 482d
KCSAN: data-race in __filemap_add_folio / nr_blockdev_pages (3) ext4 prio:low 6 175 9d11h 922d
KCSAN: data-race in filemap_splice_read / filemap_splice_read ext4 prio:low 6 1570 21h11m 924d
KCSAN: data-race in data_push_tail / string ext4 audit prio:low 6 490 14d 1792d
KCSAN: data-race in data_alloc / prb_reserve net ext4 prio:low 6 1272 1d09h 1911d
KCSAN: data-race in _prb_read_valid / prb_reserve bridge ext4 prio:high 6 3895 1d02h 2047d
KCSAN: data-race in __find_get_block / has_bh_in_lru ext4 6 syz 2497 419d 2328d