syzbot

 sign-in | mailing list | source | docs
🐞 Open [1577]
≡ Subsystems
🐞 Fixed [6321]
🐞 Invalid [16104]
⬇ Missing Backports [191]
≡ Crashes
Kernel Health Bugs/Month Bug Lifetimes Fuzzing
Total Repo Heatmap Subsystems Heatmap
💬 Send us feedback

Applied filters: Label=subsystems:mm (drop)
open (121):
Title Repro Cause bisect Fix bisect Count Last Reported Discussions
INFO: rcu detected stall in exit_to_user_mode_loop mm 33 7h58m 2d16h
WARNING: bad unlock balance in move_pgt_entry mm C done 8 7d04h 7d00h 💬 1 [6d03h]
possible deadlock in upgrade_mmap_lock_carefully (2) mm ntfs3 C error 5 2d21h 15d 💬 1 [14d]
INFO: rcu detected stall in sys_unlinkat (3) mm 30 21d 17d
kernel BUG in try_to_unmap_one (2) mm C 7 8d09h 19d PATCH [12d]
BUG: soft lockup in sys_sendmsg (2) scsi mm block 6 19d 19d
kernel BUG in sanity_check_pinned_pages mm C 3 2d10h 20d 💬 15 [14h14m]
KASAN: slab-use-after-free Read in __list_lru_walk_one (2) mm 1 27d 20d
possible deadlock in __vma_start_write mm 1 29d 25d 💬 10 [18d]
BUG: unable to handle kernel paging request in percpu_ref_get_many (2) cgroups mm 16 8h03m 30d 💬 1 [30d]
INFO: rcu detected stall in vms_gather_munmap_vmas mm syz 34 3h36m 40d
INFO: rcu detected stall in ext4_end_io_rsv_work (3) mm ext4 C error 2 16d 42d
KCSAN: data-race in copy_fs / free_bprm mm fs 1 47d 47d
KCSAN: data-race in copy_page_from_iter_atomic / pagecache_isize_extended ext4 mm 2 45d 49d 💬 4 [41d]
INFO: rcu detected stall in wg_packet_handshake_receive_worker (3) wireguard mm syz error 6 4d21h 50d
INFO: rcu detected stall in nsim_fib_event_work mm C error 3 30d 53d
BUG: Bad page state in page_cache_ra_order mm C 7 10d 53d
INFO: task hung in exit_mmap (2) mm C done error 7 7d05h 60d
kernel BUG in __filemap_add_folio fs mm C done 22 17h39m 60d
BUG: soft lockup in sys_bpf mm 14 3d03h 62d
INFO: task hung in page_cache_ra_order fs mm C done 25 1d13h 62d 💬 1 [62d]
INFO: rcu detected stall in rtnl_newlink (5) mm batman syz error 99 1d10h 71d
BUG: sleeping function called from invalid context in emon mm 1 79d 75d
BUG: unable to handle kernel paging request in clear_page_erms (7) mm 1 81d 76d
BUG: soft lockup in cfg80211_wext_siwfreq kasan mm 2 27d 77d
KCSAN: data-race in getrusage / try_to_unmap_one (2) mm 6 52d 82d
KCSAN: data-race in mem_cgroup_track_foreign_dirty_slowpath / mem_cgroup_track_foreign_dirty_slowpath (7) mm fs 4 10d 83d
INFO: rcu detected stall in clone (7) mm 44 3d12h 89d
KASAN: slab-use-after-free Read in __mm_populate mm 1 99d 95d
general protection fault in xas_create mm bcachefs syz 2 50d 99d
WARNING: bad unlock balance in __mm_populate xfs mm C 52 98d 113d 💬 12 [100d]
KASAN: global-out-of-bounds Read in get_mem_cgroup_from_mm cgroups mm C 2 49d 113d
WARNING in get_dump_page ext4 mm C done error 5 104d 117d
BUG: unable to handle kernel paging request in shmem_undo_range mm syz 3 89d 126d
KASAN: slab-out-of-bounds Read in folio_try_get bcachefs mm C 3 109d 129d 💬 2 [129d]
INFO: task hung in rmap_walk_file mm C error 19 7d18h 137d
UBSAN: shift-out-of-bounds in xas_reload bcachefs mm C 4 123d 137d 💬 2 [128d]
KASAN: slab-use-after-free Read in list_lru_del mm syz done 13 24d 137d
INFO: rcu detected stall in sys_mkdir (9) ext4 mm syz done 2 12d 150d
INFO: rcu detected stall in task_numa_work (2) bpf mm C error error 17 23d 171d
KASAN: slab-use-after-free Read in filemap_map_pages xfs mm C inconclusive 8 25d 174d 💬 1 [174d]
INFO: task hung in hugetlbfs_zero_partial_page mm fs syz done 3 2d22h 184d
INFO: rcu detected stall in sys_mkdirat (2) mm 43 49d 189d
BUG: unable to handle kernel NULL pointer dereference in deactivate_slab (2) mm 9 42d 192d
WARNING in __folio_rmap_sanity_checks (2) xfs mm C inconclusive 12 32d 195d 💬 26 [28d]
BUG: unable to handle kernel paging request in memcg_rstat_updated cgroups mm 6 82d 196d
INFO: rcu detected stall in mas_preallocate (2) mm syz done 6 1d15h 196d 💬 6 [106d]
INFO: rcu detected stall in sys_umount (3) mm syz done 38 9d16h 197d
possible deadlock in balance_pgdat (2) scsi mm C 4 167d 201d 💬 1 [158d]
INFO: rcu detected stall in sys_symlinkat (5) mm syz error 58 14d 202d
INFO: rcu detected stall in sys_sendmmsg (7) mm tipc 74 14d 205d
KASAN: slab-use-after-free Read in folio_evictable (3) mm C 37 1d15h 210d 💬 7 [140d]
INFO: rcu detected stall in sys_mmap (3) mm C error 22 10h22m 210d
INFO: rcu detected stall in sys_setsockopt (4) mm C done inconclusive 27 2d06h 210d
BUG: corrupted list in list_lru_add mm syz 9 10d 213d
INFO: rcu detected stall in security_file_ioctl (9) mm 73 3d12h 214d
BUG: Bad page state in iomap_write_begin xfs mm C 242 1d01h 215d 💬 4 [92d]
kernel BUG in resv_map_release (3) mm C 17 1d13h 224d 💬 1 [223d]
INFO: rcu detected stall in sys_pipe2 (2) mm syz done 95 4d05h 225d
KCSAN: data-race in folios_put_refs / need_mlock_drain (2) mm 19 16d 231d
WARNING: locking bug in __set_page_owner mm C error inconclusive 179425 140d 232d 💬 2 [138d]
INFO: rcu detected stall in brk (2) mm syz 2 173d 235d 💬 8 [234d]
INFO: rcu detected stall in kthreadd (2) mm C unreliable 73 17d 237d
WARNING in get_taint (2) mm C 363 210d 241d
INFO: rcu detected stall in sys_readlink (5) mm fs syz done 30 32d 248d
INFO: rcu detected stall in seq_read_iter (2) mm C inconclusive error 8 121d 250d 💬 1 [249d]
WARNING: ODEBUG bug in __folio_put (2) usb mm syz 27 70d 251d
INFO: rcu detected stall in vma_link_file mm input usb syz 1 256d 252d 💬 6 [250d]
INFO: rcu detected stall in sys_mprotect (8) mm syz done 73 1d02h 256d
WARNING in vms_complete_munmap_vmas mm C 2396 12d 258d 💬 1 [10d]
WARNING in page_counter_cancel (5) mm C 15 39d 262d 💬 1 [261d]
INFO: rcu detected stall in kjournald2 (2) mm C error error 72 1d13h 264d
INFO: rcu detected stall in vhci_release mm syz done done 12 51d 268d
INFO: rcu detected stall in shmem_fault (6) mm C 117 51m 277d PATCH [259d]
INFO: rcu detected stall in sys_execve (6) mm syz done 51 4d22h 279d
INFO: rcu detected stall in x64_sys_call mm syz error 307 4d22h 287d
BUG: corrupted list in add_to_unbuddied mm syz 43 94d 288d 💬 4 [249d]
KMSAN: uninit-value in sw842_compress mm C 65 1d23h 289d 💬 3 [221d]
INFO: task hung in hugetlb_fault mm C done 65 6d00h 290d 💬 2 [254d]
kernel BUG in z3fold_page_migrate mm syz 354 87d 293d
INFO: task hung in page_cache_ra_unbounded (2) fs mm C done 3640 25d 295d 💬 1 [10d]
INFO: task hung in hugetlb_wp mm C done inconclusive 94 120d 311d
INFO: rcu detected stall in kcov_close mm 115 6d19h 315d
kernel panic: System is deadlocked on memory (2) mm 39 13d 315d
INFO: rcu detected stall in vm_mmap_pgoff mm 89 1d21h 317d PATCH [259d]
INFO: task hung in filemap_fault (6) mm 192 60d 349d
BUG: unable to handle kernel paging request in free_unref_page mm syz 2 165d 387d
possible deadlock in __mmap_lock_do_trace_acquire_returned (2) mm C error inconclusive 621 329d 393d
WARNING in shmem_evict_inode (3) mm 41 9h43m 395d
INFO: rcu detected stall in sys_sendto (7) mm C error 273 3d21h 398d
INFO: task hung in __lru_add_drain_all (2) mm syz error 272 64d 402d
BUG: Bad rss-counter state (5) bcachefs mm C done 2364 1d20h 406d 💬 3 [10d]
INFO: rcu detected stall in validate_mm (3) mm C error 35 19d 407d 💬 5 [350d]
possible deadlock in gup_fast_fallback ntfs3 mm C done 2358 8h59m 429d 💬 1 [10d]
inconsistent lock state in __mmap_lock_do_trace_acquire_returned mm C error inconclusive 498 339d 446d 💬 2 [325d]
INFO: rcu detected stall in sys_clone (8) mm bpf C error 269 3d16h 452d 💬 10 [61d]
INFO: rcu detected stall in asm_exc_page_fault mm syz error error 4 82d 471d 💬 3 [326d]
WARNING in kunmap_local_indexed mm C 1890 10m 483d
INFO: rcu detected stall in sys_syslog (2) mm C error 39 8d03h 489d
BUG: soft lockup in pipe_read fs mm syz 5 138d 516d
INFO: task hung in _vm_unmap_aliases (3) mm C 566 1d14h 531d
INFO: rcu detected stall in dput (8) mm C done 386 2d11h 540d
INFO: rcu detected stall in sys_socket (10) mm C done 123 9d08h 571d 💬 6 [567d]
BUG: spinlock recursion in try_to_wake_up mm crypto C 9 306d 588d
INFO: rcu detected stall in sys_unshare (9) mm C inconclusive done 43 12d 591d 💬 1 [104d]
INFO: rcu detected stall in worker_thread (9) netfilter mm C done 3725 3h13m 625d PATCH [619d]
BUG: unable to handle kernel NULL pointer dereference in __kmap_local_page_prot mm C 138 347d 628d
KASAN: slab-out-of-bounds Read in generic_perform_write hfs mm C inconclusive done 10473 82d 639d PATCH [354d]
kernel BUG in filemap_unaccount_folio mm C done error 386 2d07h 656d 💬 4 [201d]
INFO: rcu detected stall in sys_openat (3) mm C error 411 4d10h 659d
INFO: rcu detected stall in sys_unlink (3) mm C error 186 9d05h 680d
KCSAN: data-race in generic_fillattr / shmem_mknod (2) mm syz 760 217d 792d 💬 21 [231d]
KCSAN: data-race in __filemap_remove_folio / folio_mapping (2) mm 582 3h15m 792d 💬 6 [10d]
possible deadlock in filemap_fault mm C done 2830 4h40m 963d 💬 4 [10d]
INFO: rcu detected stall in sys_newfstatat (4) mm C error 425 5d23h 973d 💬 1 [314d]
memory leak in xas_create mm C 15 551d 1081d 💬 9 [587d]
WARNING in ext4_dirty_folio mm C inconclusive done 25820 1d01h 1185d 💬 2 [10d]
INFO: task hung in do_read_cache_folio block mm kasan C error error 179 731d 1233d 💬 3 [718d]
INFO: task can't die in wait_on_page_bit_common mm fs C done 5 1407d 1760d
KASAN: use-after-free Read in corrupted (4) mm C done error 14 124d 1777d 💬 2 [1118d]
INFO: task hung in do_read_cache_page (3) fs mm C done inconclusive 88 1077d 1975d 💬 2 [1868d]
moderation (56):
Title Repro Cause bisect Fix bisect Count Last Reported Discussions
KCSAN: data-race in __wb_update_bandwidth / percpu_counter_add_batch (10) mm fs 1 1d16h 1d16h
BUG: unable to handle kernel paging request in handle_softirqs (2) mm 1 6d23h 2d23h
WARNING: kernel/workqueue.c:LINE at __queue_work, CPU: syz.NUM.NUM/NUM mm 1 6d23h 2d23h
KCSAN: data-race in __mmput / copy_mm mm 1 6d09h 6d09h
KCSAN: data-race in copy_mm / dup_mmap mm 1 8d23h 8d23h
KCSAN: data-race in _copy_to_iter / copy_folio_from_iter_atomic mm 1 12d 12d
kernel panic: stack is corrupted in shmem_undo_range mm 1 20d 16d
KCSAN: data-race in __xa_clear_mark / file_write_and_wait_range (3) mm fs 1 26d 26d
general protection fault in asm_sysvec_reschedule_ipi mm fs 1 30d 26d
KCSAN: data-race in __writeback_single_inode / xas_clear_mark (7) fs mm 4 3d23h 30d
KCSAN: data-race in filemap_write_and_wait_range / xas_clear_mark (2) fs mm 3 10d 33d
KCSAN: data-race in getrusage / try_to_migrate_one (2) mm 1 34d 34d
KCSAN: data-race in __percpu_counter_init_many / copy_mm ext4 mm 4 2d16h 35d
KCSAN: data-race in try_to_unmap_one / try_to_unmap_one (3) mm 2 4d17h 43d
KCSAN: data-race in copy_mm / try_to_unmap_one mm 1 44d 44d
KMSAN: uninit-value in __folio_cancel_dirty fs mm 1 51d 47d
KCSAN: data-race in mlock_folio / need_mlock_drain (7) mm 3 8d14h 51d
BUG: soft lockup in dev_ioctl (2) bpf trace mm 3 9d01h 52d
upstream test error: KCSAN: data-race in __xa_clear_mark / xas_find_marked (3) fs mm 2 50d 55d
KCSAN: data-race in mas_replace_node / mas_state_walk (2) mm 14 3d14h 55d
general protection fault in lru_gen_test_recent mm 2 44d 56d
KCSAN: data-race in mas_state_walk / mas_wr_store_entry mm 28 1d07h 58d
KCSAN: data-race in mas_state_walk / mas_wmb_replace (3) mm 60 5h16m 59d
KCSAN: data-race in call_rcu / mas_state_walk (2) mm 66 16h47m 59d
possible deadlock in page_cache_ra_unbounded (2) mm fs 2 32d 67d
kernel BUG in folio_clear_dirty_for_io fs mm 2 74d 70d
KCSAN: data-race in __anon_vma_prepare / handle_mm_fault (5) mm 3 30d 70d
KCSAN: data-race in exec_mmap / vms_clear_ptes (3) mm 3 24d 71d
general protection fault in workingset_refault (2) mm 1 80d 76d
KCSAN: data-race in __xa_set_mark / filemap_write_and_wait_range mm fs 3 34d 83d
KCSAN: data-race in _copy_from_iter / _copy_from_iter (5) mm 17 4d16h 84d
KCSAN: data-race in __filemap_remove_folio / filemap_write_and_wait_range (4) mm iomap 24 5d03h 87d
KCSAN: data-race in file_write_and_wait_range / xas_clear_mark (2) fs mm 2 46d 92d
KCSAN: data-race in xas_find_marked / xas_init_marks (5) mm 6 4d13h 96d
KCSAN: data-race in filemap_write_and_wait_range / xas_set_mark (2) fs mm 91 4d13h 139d
KCSAN: data-race in munlock_folio / need_mlock_drain (6) mm 7 51d 148d
KCSAN: data-race in fill_mg_cmtime / shmem_symlink mm 62 1d11h 214d
KCSAN: data-race in fill_mg_cmtime / shmem_mknod mm 250 2h21m 215d
KCSAN: data-race in fill_mg_cmtime / shmem_unlink mm 64 3d13h 216d
KCSAN: data-race in file_write_and_wait_range / xas_set_mark (2) fs mm 468 2d14h 217d
KCSAN: data-race in shmem_fallocate / shmem_fault (9) mm 50 6d04h 250d
KCSAN: data-race in __delete_from_swap_cache / folio_mapping (5) mm 40 2d01h 253d
KCSAN: data-race in getrusage / vms_clear_ptes mm 155 19h32m 274d 💬 1 [100d]
KCSAN: data-race in shmem_add_to_page_cache / shmem_getattr (5) mm 108 13d 353d
KCSAN: data-race in shmem_getattr / shmem_recalc_inode mm 97 9d12h 354d
KCSAN: data-race in __filemap_remove_folio / nr_blockdev_pages (5) mm 79 17d 355d
KCSAN: data-race in __writeback_single_inode / xas_set_mark (6) fs mm 502 1d22h 412d
KCSAN: data-race in mlock_new_folio / need_mlock_drain (3) mm 65 41d 439d
KCSAN: data-race in __lru_add_drain_all / folios_put_refs mm 129 3d19h 442d
KCSAN: data-race in __filemap_add_folio / nr_blockdev_pages (3) mm 115 7h08m 562d
KCSAN: data-race in shmem_file_splice_read / shmem_file_splice_read mm 1539 7h45m 563d
KCSAN: data-race in __lru_add_drain_all / folio_add_lru mm 1371 10h08m 1287d
KCSAN: data-race in __xa_clear_mark / xas_find_marked (2) fs mm 4668 8h15m 1458d
KCSAN: data-race in __xa_set_mark / xas_find_marked mm fs 1524 4d00h 1732d
KCSAN: data-race in xas_clear_mark / xas_find_marked (2) mm fs 4075 1d02h 2022d
KCSAN: data-race in xas_find_marked / xas_set_mark mm fs 2036 2d01h 2028d