syzbot

 sign-in | mailing list | source | docs | 🏰
🐞 Open [1339]
≡ Subsystems
🐞 Fixed [7118]
🐞 Invalid [18806]
⬇ Missing Backports [220]
≡ 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: 176
Parent subsystem(s): fs (138)
Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Discussions
BUG: unable to handle kernel NULL pointer dereference in qlist_free_all (10) prio:low mm ext4 10 C 3 6d09h 6d09h
possible deadlock in ext4_map_blocks (3) ext4 4 1 12d 8d07h
general protection fault in jbd2_journal_dirty_metadata (2) ocfs2 ext4 prio:high 2 C error 19 4d00h 22d PATCH [15d]
INFO: task jbd2/sda1-NUM:NUM blocked in I/O wait for more than NUM seconds. ext4 prio:low -1 C 12 18h31m 26d PATCH [23d]
BUG: sleeping function called from invalid context in jbd2_journal_commit_transaction ext4 5 1 34d 30d
WARNING in jbd2_journal_dirty_metadata (3) ext4 prio:high -1 1 38d 34d
kernel BUG in ext4_ext_map_blocks ext4 -1 2 84d 86d
KASAN: use-after-free Read in xattr_find_entry (2) ext4 prio:high 19 C error error 3 83d 93d PATCH [46d]
INFO: task hung in block_read_full_folio (3) ext4 prio:high 1 C error error 7 48d 104d
kernel BUG in ext4_es_cache_extent (4) ext4 prio:high -1 C error error 15 63d 107d 💬 8 [75d]
possible deadlock in wait_transaction_locked (3) ext4 4 C error 331 4h33m 148d 💬 1 [93d]
kernel BUG in ext4_mb_normalize_request (2) prio:high ext4 -1 15 61d 150d
possible deadlock in evict (4) prio:high ext4 4 19 13d 181d
possible deadlock in ext4_xattr_set_handle (7) prio:high ext4 4 C unreliable 392 5h36m 195d
possible deadlock in ext4_destroy_inline_data (2) prio:low ext4 4 C error 3941 1h12m 202d 💬 5 [18d]
possible deadlock in ext4_evict_inode (5) ext4 4 C error 459 3h46m 203d
WARNING in ext4_xattr_inode_update_ref (2) ext4 prio:low -1 C error 8850 52m 208d 💬 2 [18d]
WARNING in get_data ext4 prio:high -1 C error 1613 197d 214d
WARNING in ext4_write_inode (3) prio:high ext4 -1 9 8d11h 222d
KMSAN: uninit-value in fscrypt_crypt_data_unit ext4 fscrypt 7 C 181 12d 224d 💬 6 [166d]
INFO: rcu detected stall in unwind_next_frame (5) ext4 1 C error error 50 7d17h 225d
INFO: rcu detected stall in ext4_file_mmap_prepare ext4 prio:high 1 C error 2 17d 252d
possible deadlock in do_writepages (2) ext4 prio:normal 4 C unreliable 742 1d14h 253d
WARNING in ext4_mb_load_buddy_gfp ext4 mm prio:high -1 C 7 88d 254d PATCH [244d]
possible deadlock in ext4_truncate (2) prio:high ext4 4 C unreliable error 3 38d 275d 💬 4 [274d]
INFO: rcu detected stall in wb_workfn (4) prio:normal ext4 1 C error error 63 34d 319d 💬 1 [179d]
KASAN: slab-use-after-free Read in __ext4_check_dir_entry prio:high ext4 19 C error error 6 21d 330d PATCH [317d]
KASAN: use-after-free Read in ext4_ext_insert_extent prio:high ext4 22 C done error 10 83d 366d 💬 1 [237d]
INFO: rcu detected stall in ext4_end_io_rsv_work (3) prio:normal ext4 mm 1 C error error 3 143d 380d
kernel BUG in ext4_ext_insert_extent (2) ext4 -1 C done error 38 74d 410d
WARNING in __jbd2_log_wait_for_space ocfs2 ext4 -1 C inconclusive done 6 188d 509d
KASAN: use-after-free Read in ext4_find_extent (4) ext4 prio:high 19 C done error 307 59d 512d PATCH [186d]
INFO: task hung in find_inode_fast (4) ext4 1 C error error 22 8d06h 520d
INFO: task hung in do_get_write_access (3) prio:low ext4 1 C error 464 49d 549d
divide error in qnx6_mmi_fill_super ext4 prio:high 2 C unreliable inconclusive 7 65d 571d PATCH [569d]
WARNING in ext4_iomap_begin (3) ext4 prio:high -1 C inconclusive 131 12d 573d
possible deadlock in ext4_writepages (2) ext4 4 C unreliable 7831 3h33m 584d 💬 1 [18d]
WARNING in ext4_journal_check_start (2) ext4 -1 C inconclusive inconclusive 78 1d04h 586d PATCH [382d]
possible deadlock in ext4_xattr_inode_lookup_create ext4 prio:high 4 C done error 287 6d03h 606d
KASAN: out-of-bounds Read in ext4_xattr_set_entry prio:high ext4 22 C error 7513 13h56m 612d PATCH [152d]
KASAN: use-after-free Read in ext4_inlinedir_to_tree ext4 19 C done error 6 144d 636d 💬 1 [636d]
kernel BUG in ext4_mb_use_inode_pa (2) ext4 -1 C error 292 17h41m 657d
WARNING in ext4_xattr_inode_lookup_create prio:low ext4 -1 C inconclusive 996 19d 728d PATCH [728d]
INFO: task hung in jbd2_journal_commit_transaction (5) ext4 1 C error error 2186 39d 742d
INFO: task hung in do_renameat2 (2) prio:high ext4 1 C inconclusive error 278 144d 751d
WARNING in ext4_xattr_set_entry (2) ext4 -1 C error 9 742d 776d
kernel BUG in ext4_write_inline_data_end (2) ext4 -1 C inconclusive error 173 33d 845d PATCH [320d]
INFO: task hung in sync_inodes_sb (5) xfs ext4 1 C error inconclusive 2950 5d14h 1044d
WARNING: locking bug in ext4_ioctl ext4 4 C done done 923 536d 1087d PATCH [606d]
WARNING: locking bug in __ext4_ioctl ext4 4 C done error 849 553d 1087d
kernel BUG in ext4_do_writepages ext4 -1 C error 3150 2d05h 1256d 💬 9 [18d]
kernel BUG in __ext4_journal_stop ext4 -1 C error done 42 10d 1276d 💬 7 [806d]
Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Discussions
KCSAN: data-race in _copy_to_iter / string (6) ext4 race:benign 6 1 10d 10d
KCSAN: data-race in _copy_to_iter / kmmpd (4) ext4 prio:high 6 2 8d11h 22d
KCSAN: data-race in memcpy_and_pad / string race:benign ext4 prio:high 6 2 46d 58d
KCSAN: data-race in data_push_tail / number (6) ext4 bluetooth prio:low 6 4 21d 83d
KCSAN: data-race in __filemap_add_folio / sync_bdevs (3) ext4 6 2 51d 92d
KCSAN: data-race in has_bh_in_lru / invalidate_bh_lru (9) ext4 6 5 1d08h 104d
KCSAN: data-race in atime_needs_update / inode_update_time ext4 6 10 4d07h 106d
KCSAN: data-race in xas_find_marked / xas_init_marks (6) ext4 mm 6 19 39d 264d
KCSAN: data-race in _prb_read_valid / prb_reserve_in_last (2) ext4 prio:low 6 33 1h54m 307d
KCSAN: data-race in copy_folio_from_iter_atomic / copy_folio_from_iter_atomic prio:high ext4 6 162 19h31m 356d
KCSAN: data-race in find_get_block_common / has_bh_in_lru ext4 prio:high 6 294 3d03h 395d
KCSAN: data-race in _prb_read_valid / data_alloc net ext4 prio:high 6 478 13h33m 396d
KCSAN: data-race in data_push_tail / vsnprintf (9) prio:low ext4 6 225 2d12h 460d
KCSAN: data-race in __filemap_add_folio / nr_blockdev_pages (3) ext4 prio:high 6 173 16d 899d
KCSAN: data-race in filemap_splice_read / filemap_splice_read ext4 6 1557 4h16m 902d
KCSAN: data-race in data_push_tail / string ext4 audit prio:low 6 488 20d 1769d
KCSAN: data-race in data_alloc / prb_reserve prio:high net ext4 6 1263 1d00h 1888d
KCSAN: data-race in _prb_read_valid / prb_reserve bridge ext4 6 3882 21h12m 2024d
KCSAN: data-race in __find_get_block / has_bh_in_lru ext4 6 syz 2497 396d 2305d