syzbot: mm subsystem

mm subsystem

List(s): linux-mm@kvack.org
Fixed bugs: 414
Parent subsystem(s): kernel (85)
Child subsystems: damon (0)

Title	Rank 🛈	Repro	Cause bisect	Fix bisect	Count	Last	Reported	Discussions
INFO: rcu detected stall in unmap_region prio:normal mm	1	syz	error		4	16d	12d
INFO: rcu detected stall in sys_epoll_wait (9) mm usb input prio:high	1	C	error		1	17d	15d
INFO: rcu detected stall in dentry_kill prio:high fs mm	1	C	error		16	2d07h	25d	PATCH [12d]
KCSAN: data-race in __anon_vma_prepare / __vmf_anon_prepare (2) mm race:harmful prio:low	6				1	25d	25d	💬 1 [23d]
KCSAN: data-race in __percpu_counter_limited_add / percpu_counter_add_batch (3) mm race:harmful prio:low	6				1	25d	25d
KASAN: invalid-free in rcu_free_sheaf prio:high mm arm net	24				6	3d03h	32d	PATCH [1d22h]
upstream test error: WARNING in call_timer_fn prio:high mm	-1				1	42d	38d	💬 1 [38d]
linux-next test error: kernel BUG in post_alloc_hook prio:low mm	-1				4	41d	41d	💬 2 [41d]
WARNING in swap_cluster_assert_empty prio:low mm	-1				1	47d	43d	PATCH [41d]
possible deadlock in page_cache_ra_order prio:high mm fs	4				8	3d01h	45d
KCSAN: data-race in _copy_to_iter / _copy_to_iter (2) race:harmful prio:low mm	6				2	12d	46d
INFO: rcu detected stall in clone3 (6) prio:high mm cgroups	1				40	8d19h	48d
WARNING in alloc_frozen_pages_noprof (2) prio:high mm	-1	C			3	26d	50d	PATCH [48d]
BUG: unable to handle kernel NULL pointer dereference in qlist_free_all (10) prio:low mm ext4	10	C			3	41d	55d
WARNING in folio_lruvec_relock_irqsave prio:high mm	-1				1	60d	56d
possible deadlock in hugetlbfs_fallocate prio:low fs mm	4				2	57d	59d
possible deadlock in gup_fast_fallback (3) prio:low mm	4				14	12d	64d	💬 1 [63d]
possible deadlock in hugetlb_vma_lock_write prio:low mm net	4				2	46d	64d	PATCH [62d]
BUG: sleeping function called from invalid context in vma_alloc_folio_noprof (2) mm	5				1	77d	73d	💬 3 [72d]
BUG: sleeping function called from invalid context in __tlb_batch_free_encoded_pages prio:high arch mm	5				3	75d	76d	💬 2 [44d]
WARNING in __page_cache_release prio:low mm	-1				1	80d	76d
BUG: sleeping function called from invalid context in shmem_undo_range prio:high mm	5				1	83d	82d	💬 2 [82d]
BUG: sleeping function called from invalid context in __zap_vma_range prio:high mm	5				4	63d	85d	💬 2 [84d]
KCSAN: data-race in mas_wr_store_entry / mtree_range_walk (2) prio:low mm	6				87	1d02h	89d	💬 7 [34d]
BUG: sleeping function called from invalid context in kvm_xen_set_evtchn_fast prio:high mm kvm kvm-x86	5				2	82d	90d	PATCH [40d]
INFO: rcu detected stall in kcov_ioctl (3) prio:high mm	1				31	25d	97d	💬 1 [97d]
WARNING in rcu_tasks_verify_work_fn prio:low mm	-1				18	3d06h	105d	PATCH [9d05h]
KASAN: use-after-free Read in copy_folio_from_iter_atomic (2) prio:high jfs mm	19	C	error		26523	7m	107d	PATCH [81d]
KMSAN: uninit-value in copy_from_kernel_nofault prio:high mm	7				21	17d	121d	💬 3 [121d]
possible deadlock in mfill_get_vma prio:low mm	4	C			290	68d	121d	PATCH [121d]
WARNING: suspicious RCU usage in usb_tx_block prio:high mm	4				4	95d	128d
INFO: rcu detected stall in __dentry_kill prio:high mm	1	syz	error		132	2h51m	134d
possible deadlock in lock_mm_and_find_vma (4) prio:low mm	4				2327	37m	139d	💬 2 [84d]
WARNING in __put_task_struct (6) prio:high mm	-1				5	94d	141d
WARNING: refcount bug in call_timer_fn (4) prio:high mm virt	13				26	3d04h	143d	💬 4 [9d03h]
kernel BUG in __page_table_check_zero (3) prio:high mm	-1				278	9d08h	146d	PATCH [28d]
INFO: rcu detected stall in sendfile64 prio:high mm	1				40	11d	150d
memory leak in __kfree_rcu_sheaf prio:high mm f2fs exfat	3	syz			1	157d	155d	💬 28 [71d]
BUG: Bad rss-counter state (6) prio:high mm	-1				110	10d	157d
kernel BUG in page_table_check_set (2) prio:low mm	-1				711	10d	159d	💬 1 [157d]
INFO: rcu detected stall in vma_merge_new_range (3) prio:low bpf mm	1	syz	error	error	2	85d	169d
INFO: rcu detected stall in schedule_tail (8) prio:low mm	1	C	error	error	1	171d	169d
INFO: rcu detected stall in __mmap_complete prio:normal mm	1	syz	error	error	8	7d02h	191d
INFO: rcu detected stall in sys_newfstat (4) prio:low mm	1	C	error		51	1d17h	205d
INFO: rcu detected stall in sys_io_uring_enter (3) mm prio:low	1				52	11d	208d
INFO: rcu detected stall in finish_dput prio:low mm	1	C	error	error	138	176d	212d
BUG: sleeping function called from invalid context in kvm_mmu_notifier_invalidate_range_start prio:high mm	5	syz			11	32d	219d	PATCH [37d]
WARNING in sched_mm_cid_fork prio:low fs mm	-1	C	error	error	332	162d	224d	PATCH [203d]
INFO: rcu detected stall in call_usermodehelper_exec_async (4) prio:low mm	1	C	error		16	1d19h	230d
general protection fault in __rt_mutex_slowlock_locked prio:high mm	2				24	92d	245d
INFO: rcu detected stall in sys_symlink (6) prio:high fs mm	1	C	error	inconclusive	6	66d	260d
INFO: rcu detected stall in shmem_file_write_iter (3) prio:low mm	1	C			86	10d	266d
INFO: task hung in migrate_pages_batch (4) prio:high mm	1				237	1d08h	274d
WARNING in path_noexec (2) prio:low fs mm	-1	C	error		27195	16d	287d	PATCH [277d]
WARNING in ext4_mb_load_buddy_gfp prio:high ext4 mm	-1	C			7	137d	303d	PATCH [293d]
INFO: rcu detected stall in sys_madvise (2) prio:high mm	1				60	12d	318d
INFO: task hung in writeback_iter (3) prio:high fs mm	1	C	error	error	20	15d	321d	PATCH [175d]
WARNING in __alloc_skb (4) mm	-1	C			8	124d	321d	PATCH [297d]
INFO: rcu detected stall in sys_mount (8) mm prio:low	1	C	error		38	4d18h	322d	💬 1 [321d]
INFO: rcu detected stall in sys_munmap (2) prio:low mm	1	C	error	error	45	7d10h	327d	💬 7 [207d]
KASAN: slab-use-after-free Read in lru_add (2) prio:high gfs2 mm	19	C	error		12	66d	344d	PATCH [3h39m]
WARNING in trace_suspend_resume prio:high mm	-1	C			3851	5d07h	349d	💬 1 [21d]
INFO: rcu detected stall in kernfs_fop_open (7) prio:high kernfs mm	1	C	error	error	10	18d	351d
INFO: rcu detected stall in devtmpfsd (3) prio:low mm	1	C	error	inconclusive	5	38d	360d	💬 2 [359d]
INFO: rcu detected stall in linkwatch_event (5) prio:normal net mm	1	syz	error	error	3	196d	384d
INFO: rcu detected stall in exit_to_user_mode_loop prio:low mm	1	C	error		599	9h16m	389d	💬 1 [351d]
INFO: rcu detected stall in vm_area_alloc (6) prio:normal mm	1	syz	error	error	13	52d	411d
INFO: rcu detected stall in vms_gather_munmap_vmas prio:normal mm	1	syz	error	error	61	22d	426d
INFO: rcu detected stall in ext4_end_io_rsv_work (3) prio:normal mm ext4	1	C	error	error	3	192d	429d
INFO: rcu detected stall in wg_packet_handshake_receive_worker (3) prio:normal mm	1	syz	error	error	18	33d	436d
INFO: rcu detected stall in nsim_fib_event_work prio:high mm	1	C	error	error	9	13d	439d
INFO: task hung in exit_mmap (2) prio:low mm	1	C	done	error	59	85d	446d
kernel BUG in __filemap_add_folio prio:low fs mm	-1	C	done		2044	7d04h	446d	PATCH [209d]
BUG: soft lockup in sys_bpf prio:low mm	1	C	error		198	1d21h	448d
INFO: task hung in page_cache_ra_order prio:low fs mm	1	C	done		118	6d19h	448d	💬 1 [448d]
INFO: rcu detected stall in clone (7) prio:high mm	1				116	1d01h	475d
INFO: rcu detected stall in sys_mkdir (9) prio:high mm	1	syz	done	error	6	57d	536d
INFO: rcu detected stall in task_numa_work (2) bpf mm	1	C	error	error	27	25d	557d
INFO: rcu detected stall in mas_preallocate (2) mm	1	syz	done	error	11	32d	583d	💬 6 [492d]
INFO: rcu detected stall in sys_umount (3) prio:low mm	1	C	done	error	57	24d	584d	💬 2 [330d]
possible deadlock in balance_pgdat (2) mm scsi	4	C			4	553d	587d	💬 1 [545d]
INFO: rcu detected stall in sys_sendmmsg (7) prio:high mm	1				141	7d04h	591d
KASAN: slab-use-after-free Read in folio_evictable (3) prio:high gfs2 mm	19	C			78	7d11h	596d	💬 7 [21d]
INFO: rcu detected stall in sys_mmap (3) mm	1	C	error	error	66	2d15h	597d
INFO: rcu detected stall in sys_setsockopt (4) prio:high mm	1	C	done	inconclusive	95	5d09h	597d
INFO: rcu detected stall in security_file_ioctl (9) prio:normal mm	1	syz	error		166	2d07h	600d
INFO: rcu detected stall in sys_pipe2 (2) prio:low mm	1	syz	done	done	133	8d17h	611d
INFO: rcu detected stall in brk (2) prio:high mm	1	syz			3	91d	621d	💬 8 [621d]
INFO: rcu detected stall in kthreadd (2) mm	1	C	unreliable	error	130	6d22h	623d
INFO: rcu detected stall in sys_readlink (5) prio:normal kernfs mm btrfs	1	syz	done	error	54	4d18h	635d
INFO: rcu detected stall in seq_read_iter (2) mm	1	C	inconclusive	error	10	57d	636d	💬 1 [636d]
WARNING: ODEBUG bug in __folio_put (2) prio:high usb mm	-1	syz			28	349d	638d
INFO: rcu detected stall in sys_mprotect (8) prio:normal mm	1	syz	done	error	121	1d09h	642d
INFO: rcu detected stall in kjournald2 (2) mm block	1	C	error	error	90	7d12h	650d
INFO: rcu detected stall in vhci_release prio:high mm	1	syz	done	done	14	54d	655d
INFO: rcu detected stall in shmem_fault (6) mm prio:low	1	C			249	6d05h	664d	PATCH [646d]
INFO: rcu detected stall in sys_execve (6) prio:normal mm	1	C	done	error	86	11h16m	666d
INFO: rcu detected stall in x64_sys_call prio:low mm	1	C	error		579	2d17h	673d
BUG: corrupted list in add_to_unbuddied mm	8	syz			43	480d	674d	💬 4 [635d]
INFO: task hung in page_cache_ra_unbounded (2) fs mm	1	C	done	error	3651	173d	681d	💬 1 [177d]
INFO: rcu detected stall in kcov_close prio:normal mm	1				224	5d16h	702d
kernel panic: System is deadlocked on memory (2) prio:high mm	2				183	1d00h	702d
INFO: rcu detected stall in vm_mmap_pgoff prio:normal mm	1	syz			116	9d12h	703d	PATCH [646d]
WARNING in drm_mode_create_lease_ioctl prio:low mm	-1	C	inconclusive	error	86	43d	748d	PATCH [530d]
INFO: rcu detected stall in addrconf_rs_timer (6) prio:normal virt mm netfilter	1	syz	error	error	703	16d	774d
WARNING in shmem_evict_inode (3) prio:normal mm	-1				95	5d14h	781d
INFO: rcu detected stall in sendmsg (4) prio:high mm	1	C	error	error	65	8d17h	782d
INFO: rcu detected stall in sys_sendto (7) prio:low mm	1	C	error	error	400	2d19h	784d
INFO: rcu detected stall in validate_mm (3) mm	1	C	error	error	41	13d	794d	💬 5 [736d]
inconsistent lock state in __mmap_lock_do_trace_acquire_returned mm	4	C	error	inconclusive	498	725d	832d	💬 2 [711d]
INFO: rcu detected stall in sys_clone (8) mm	1	C	error		456	4d05h	838d	💬 10 [385d]
INFO: rcu detected stall in sys_syslog (2) mm	1	C	error	error	51	22h28m	875d
BUG: soft lockup in pipe_read fs mm	1	syz			5	525d	902d
INFO: task hung in _vm_unmap_aliases (3) prio:low mm	1	C			696	12d	917d
INFO: rcu detected stall in sys_recvmmsg (3) prio:low mm	1				271	2d15h	939d
INFO: rcu detected stall in sys_socket (10) mm	1	C	done		268	2d23h	958d	💬 6 [953d]
BUG: spinlock recursion in try_to_wake_up crypto mm	4	C			9	692d	974d
BUG: unable to handle kernel NULL pointer dereference in __kmap_local_page_prot prio:low mm	10	C			138	734d	1014d	PATCH [355d]
kernel BUG in filemap_unaccount_folio prio:high mm	-1	C	done	error	495	24d	1042d	💬 4 [21d]
INFO: rcu detected stall in sys_openat (3) prio:low mm	1	C	error		636	11h07m	1046d
INFO: rcu detected stall in sys_unlink (3) mm	1	C	error		397	1d02h	1066d
KCSAN: data-race in __filemap_remove_folio / folio_mapping (2) prio:low mm	6				1060	1d23h	1178d	PATCH [114d]
possible deadlock in filemap_fault prio:high mm	4	C	done		3085	3h44m	1349d	PATCH [14d]
INFO: rcu detected stall in sys_newfstatat (4) prio:high mm tomoyo	1	C	error		582	3d02h	1359d	💬 1 [25d]
memory leak in xas_create prio:high mm	3	C			55	2d10h	1467d	PATCH [232d]
WARNING in ext4_dirty_folio mm prio:low	-1	C	inconclusive	done	25911	3d10h	1572d	💬 2 [53d]
INFO: task hung in do_read_cache_folio kasan mm block	1	C	error	error	179	1117d	1619d	💬 3 [1105d]
INFO: task can't die in wait_on_page_bit_common fs mm	1	C	done		5	1794d	2146d
INFO: task hung in do_read_cache_page (3) mm fs	1	C	done	inconclusive	88	1463d	2361d	💬 2 [2255d]

Title	Rank 🛈	Count	Last	Reported
general protection fault in __refill_obj_stock mm cgroups prio:high	2	1	15d	11d
KCSAN: data-race in __wb_writeout_add / writeout_period (6) fs mm race:benign prio:high	6	1	15d	15d
KCSAN: data-race in generic_fillattr / shmem_symlink (7) mm race:benign prio:low	6	1	19d	19d
KCSAN: data-race in copy_mm / vm_mmap_pgoff (3) mm race:benign prio:low	6	1	21d	21d
KCSAN: data-race in _copy_to_iter / copy_folio_from_iter_atomic (4) mm race:benign prio:low	6	2	23d	26d
upstream test error: KCSAN: data-race in __xa_clear_mark / xas_find_marked (6) prio:high fs mm	-1	3	19h03m	31d
KCSAN: data-race in fprop_reflect_period_percpu / fprop_reflect_period_percpu (10) race:benign prio:high mm fs	6	1	33d	33d
KCSAN: data-race in __wb_update_bandwidth / percpu_counter_add_batch (12) race:benign prio:high fs mm	6	1	34d	34d
KCSAN: data-race in fprop_new_period / fprop_reflect_period_percpu (12) race:benign prio:low fs mm	6	1	36d	36d
KCSAN: data-race in __lru_add_drain_all / deactivate_file_folio (5) prio:low race:benign mm	6	1	37d	37d
BUG: soft lockup in pid_child_should_wake prio:low mm	1	2	17d	43d
KCSAN: data-race in copy_process / show_stat (5) race:benign prio:low mm	6	1	47d	47d
WARNING in do_mmap prio:low mm fs	-1	1	54d	50d
KCSAN: data-race in filemap_fault / filemap_read_folio race:benign prio:low mm	6	1	55d	55d
KCSAN: data-race in __writeback_single_inode / xas_clear_mark (9) race:benign prio:low fs mm	6	2	15d	61d
KCSAN: data-race in folios_put_refs / need_mlock_drain (4) prio:low mm	6	3	15d	73d
KCSAN: data-race in mlock_folio / need_mlock_drain (10) prio:low mm	6	3	10d	76d
KCSAN: data-race in __anon_vma_prepare / handle_mm_fault (6) prio:low mm	6	2	49d	81d
KASAN: slab-use-after-free Read in debug_check_no_obj_freed prio:high mm	19	1	86d	82d
KCSAN: data-race in mas_walk / mas_wmb_replace (2) prio:low mm	6	28	19d	89d
KCSAN: data-race in mas_wmb_replace / mtree_range_walk (2) prio:low mm	6	62	14h25m	90d
KCSAN: data-race in shmem_fallocate / shmem_writeout prio:low mm	6	94	2d15h	178d
KCSAN: data-race in copy_mm / copy_page_range (3) prio:low mm	6	10	2d06h	250d
KCSAN: data-race in __percpu_counter_init_many / copy_mm (2) prio:low mm	6	30	17d	304d
KCSAN: data-race in _copy_from_iter / _copy_from_iter (5) prio:low mm	6	151	1d03h	471d
KCSAN: data-race in fill_mg_cmtime / shmem_symlink prio:low mm	6	164	2d04h	600d
KCSAN: data-race in fill_mg_cmtime / shmem_mknod prio:low mm	6	625	1d13h	602d
KCSAN: data-race in file_write_and_wait_range / xas_set_mark (2) prio:low mm fs	6	953	8d22h	603d
KCSAN: data-race in shmem_add_to_page_cache / shmem_getattr (5) prio:low mm	6	222	1d12h	740d
KCSAN: data-race in __filemap_remove_folio / nr_blockdev_pages (5) prio:low mm	6	160	3d08h	742d
KCSAN: data-race in __writeback_single_inode / xas_set_mark (6) prio:low mm fs	6	869	23d	799d
KCSAN: data-race in mlock_new_folio / need_mlock_drain (3) prio:low mm	6	92	41d	825d
KCSAN: data-race in __lru_add_drain_all / folios_put_refs prio:low mm	6	216	2d00h	828d
KCSAN: data-race in __filemap_add_folio / nr_blockdev_pages (3) prio:low ext4 mm	6	177	6d15h	948d
KCSAN: data-race in shmem_file_splice_read / shmem_file_splice_read race:benign prio:low mm	6	2866	4h35m	949d
KCSAN: data-race in __filemap_add_folio / filemap_write_and_wait_range prio:low mm	6	967	50m	1650d
KCSAN: data-race in __lru_add_drain_all / folio_add_lru prio:low mm	6	1972	3h09m	1673d
KCSAN: data-race in __xa_clear_mark / xas_find_marked (2) prio:high mm fs	6	5436	1d14h	1844d
KCSAN: data-race in __xa_set_mark / xas_find_marked prio:low fs mm	6	1678	9d03h	2119d
KCSAN: data-race in xas_clear_mark / xas_find_marked (2) prio:low fs mm	6	4159	16d	2408d
KCSAN: data-race in xas_find_marked / xas_set_mark prio:low fs mm	6	2577	6d17h	2414d