syzbot: bpf subsystem

bpf subsystem

List(s): bpf@vger.kernel.org
Maintainer(s): andrii@kernel.org, ast@kernel.org, daniel@iogearbox.net
Fixed bugs: 326
Parent subsystem(s): kernel (88)

Title	Rank 🛈	Repro	Cause bisect	Fix bisect	Count	Last	Reported	Discussions
KASAN: slab-use-after-free Read in __sk_msg_recvmsg net bpf	19	C	error		5	1d13h	14h15m	PATCH [8h27m]
KASAN: slab-use-after-free Read in bpf_trace_run4 (2) bpf trace	19				1	21d	13d	💬 1 [13d]
KASAN: slab-use-after-free Read in bpf_trace_run9 bpf trace	19	C			6	33d	29d	PATCH [28d]
KASAN: slab-use-after-free Read in bpf_trace_run3 (2) bpf trace	19	C			8	1d07h	35d	💬 5 [13d]
KASAN: slab-use-after-free Read in bpf_trace_run2 (3) bpf trace	19	syz			91	13h44m	40d
KASAN: slab-use-after-free Read in sk_msg_recvmsg bpf net	19	C	error	error	3	51d	45d	💬 11 [27d]
INFO: rcu detected stall in vma_merge_new_range (3) bpf	1	syz	error	error	1	67d	65d
KMSAN: uninit-value in bpf_prog_test_run_skb bpf	7	C			4	11d	92d	PATCH [7h29m]
general protection fault in bpf_get_local_storage (2) bpf	2	C			3	82d	92d	💬 3 [92d]
INFO: rcu detected stall in watchdog (2) bpf trace	1	C	error	error	2	22d	100d	💬 3 [84d]
inconsistent lock state in bpf_lru_push_free bpf	4	C	error		259	4h29m	100d
KMSAN: uninit-value in handle_bug bpf	7	C			290	28m	117d	💬 1 [12d]
possible deadlock in bpf_lru_push_free (2) bpf	4	C	error	inconclusive	1	26d	140d	💬 3 [23d]
KASAN: stack-out-of-bounds Write in __bpf_get_stack bpf	21	C	done	error	7	60d	142d	PATCH [78d]
WARNING in reg_bounds_sanity_check (2) bpf	-1	C	done		20004	3h53m	209d	PATCH [9d21h]
INFO: rcu detected stall in task_work_add bpf	1	syz	error	error	5	14d	227d
possible deadlock in down_trylock (3) bpf trace	4	C	error		2	17d	240d	💬 2 [148d]
INFO: task hung in dev_map_free (3) bpf net	1				106	22d	263d
INFO: rcu detected stall in task_numa_work (2) bpf mm	1	C	error	error	23	21d	453d
possible deadlock in __lock_task_sighand (3) bpf	4	C	done	inconclusive	112	612d	675d
KMSAN: uninit-value in dev_map_hash_lookup_elem bpf net	7	C			20	657d	683d
possible deadlock in __stack_map_get bpf	4	C	error	error	56	360d	713d	💬 2 [374d]
possible deadlock in sock_map_delete_elem bpf net	4	C	error	done	869	660d	744d

Title	Rank 🛈	Repro	Count	Last	Reported
KCSAN: data-race in __bpf_lru_list_rotate / bpf_lru_push_free (3) bpf	6		2	41d	59d
KCSAN: data-race in bq_flush_to_queue / cpu_map_kthread_run (2) bpf net	6		444	16h42m	89d
KCSAN: data-race in pcpu_alloc_noprof / pcpu_block_update_hint_alloc bpf netfilter	6	syz	198	496d	682d