syzbot: bpf subsystem

bpf subsystem

List(s): bpf@vger.kernel.org
Maintainer(s): andrii@kernel.org, ast@kernel.org, daniel@iogearbox.net
Fixed bugs: 281
Parent subsystem(s): kernel (82)

open (42):
Title	Repro	Cause bisect	Fix bisect	Count	Last	Reported	Discussions
possible deadlock in htab_lru_map_delete_elem bpf	C			1	2d13h	14d	💬 1 [14d]
WARNING: locking bug in emon bpf				2	24d	20d
INFO: rcu detected stall in sys_sendmmsg (7) bpf netfilter				52	2d12h	20d
WARNING: locking bug in __lock_task_sighand bpf trace	C	unreliable		34	3h23m	22d	💬 4 [18h16m]
INFO: rcu detected stall in security_file_ioctl (9) mm bpf				46	21h24m	29d
KASAN: slab-use-after-free Read in sk_psock_verdict_data_ready (2) bpf net				2	12d	37d
possible deadlock in work_grab_pending (2) bpf				1	49d	45d
WARNING: locking bug in bpf_map_put bpf	C	done		150	29d	49d	💬 5 [46d]
WARNING: locking bug in trie_delete_elem bpf	C	done		23132	8d11h	50d	PATCH [34d]
KASAN: slab-out-of-bounds Read in bpf_inode_storage_free bpf				3	12d	63d
possible deadlock in debug_check_no_obj_freed bpf				1	67d	63d	💬 3 [38d]
KASAN: slab-use-after-free Read in page_pool_put_unrefed_netmem bpf net				1	73d	68d
possible deadlock in __put_partials bpf				1	82d	78d	💬 3 [38d]
BUG: MAX_STACK_TRACE_ENTRIES too low! (4) bpf	C	done		14	1d13h	85d
possible deadlock in __mod_timer (4) trace bpf	C			4	10d	90d	💬 6 [66d]
possible deadlock in htab_map_delete_elem bpf	C			3	20d	100d
KASAN: slab-use-after-free Read in sk_filter_trim_cap bpf net				3	17d	107d
WARNING in sock_map_destroy bpf net	C	error	inconclusive	6	48d	116d	PATCH [84d]
WARNING in bpf_get_stack_raw_tp bpf trace	C	error		93	22h23m	116d	💬 6 [66d]
possible deadlock in htab_lock_bucket (2) bpf	C	error		4	12d	138d
INFO: rcu detected stall in sys_bpf (9) bpf	C	error		66	1d08h	206d
possible deadlock in __lock_task_sighand (3) bpf	C	done	inconclusive	112	145d	208d
possible deadlock in get_partial_node bpf				19	66d	213d	PATCH [15d]
KMSAN: uninit-value in dev_map_hash_lookup_elem bpf net	C			20	190d	216d
WARNING in bpf_map_lookup_percpu_elem bpf	C	done		2116	9d18h	235d
possible deadlock in stack_depot_save_flags bpf				7	88d	239d	💬 3 [38d]
INFO: rcu detected stall in sys_close (7) bpf kernfs	C	error		6	1d23h	246d
possible deadlock in __stack_map_get bpf	C	error		50	3d10h	246d	💬 2 [66d]
possible deadlock in queue_stack_map_push_elem bpf	C	error		59	4d14h	247d
possible deadlock in get_page_from_freelist bpf				18	30d	250d	💬 8 [38d]
possible deadlock in __queue_map_get bpf	C	error		166	2d02h	252d	PATCH [218d]
INFO: rcu detected stall in sys_clone (8) bpf mm	C	error		185	11h53m	267d	💬 10 [1d14h]
possible deadlock in trie_update_elem bpf				137	46d	268d	💬 3 [38d]
INFO: rcu detected stall in kauditd_thread (4) audit net bpf	C	error		21	19d	268d	💬 6 [265d]
possible deadlock in trie_delete_elem bpf	C	done		21422	3d08h	276d	PATCH [196d]
possible deadlock in sock_map_delete_elem bpf net	C	error	done	869	193d	277d
UBSAN: array-index-out-of-bounds in bpf_prog_select_runtime bpf	C	done		182	1h44m	281d	PATCH [228d]
possible deadlock in __bpf_ringbuf_reserve bpf	C	error		1714	6h20m	283d	💬 6 [1d14h]
KMSAN: uninit-value in ___bpf_prog_run (4) bpf	C			311	2d15h	360d
WARNING in format_decode (3) bpf trace	C	done		1352	1d16h	395d	PATCH [32d]
INFO: rcu detected stall in sys_unshare (9) bpf	C	inconclusive		22	5d10h	406d	💬 1 [285d]
possible deadlock in task_fork_fair bpf trace	C	done		9106	26d	440d	💬 1 [97d]

moderation (3):
Title	Repro	Count	Last	Reported
KCSAN: data-race in bpf_lru_pop_free / htab_lru_percpu_map_lookup_percpu_elem (2) bpf		1	40d	40d
KCSAN: data-race in pcpu_alloc_noprof / pcpu_block_update_hint_alloc netfilter bpf	syz	198	29d	215d
KCSAN: data-race in pcpu_alloc / pcpu_block_update_hint_alloc netfilter bpf	syz	1228	217d	1871d