syzbot: bpf subsystem

bpf subsystem

List(s): bpf@vger.kernel.org
Maintainer(s): andrii@kernel.org, ast@kernel.org, daniel@iogearbox.net
Fixed bugs: 325
Parent subsystem(s): kernel (88)

Title	Rank 🛈	Repro	Cause bisect	Fix bisect	Count	Last	Reported	Discussions
KASAN: slab-use-after-free Read in bpf_trace_run4 (2) bpf trace	19				1	12d	5d05h	💬 1 [4d20h]
KASAN: slab-use-after-free Read in bpf_trace_run9 bpf trace	19	C			6	24d	21d	PATCH [19d]
KASAN: slab-use-after-free Read in bpf_trace_run3 (2) bpf trace	19	C			6	10d	26d	💬 5 [4d20h]
KASAN: slab-use-after-free Read in bpf_trace_run2 (3) bpf trace	19	syz			72	1h43m	31d
KCSAN: data-race in __udp_enqueue_schedule_skb / sk_psock_drop race:harmful net bpf	6				1	47d	37d	💬 6 [19d]
KASAN: slab-use-after-free Read in sk_msg_recvmsg net bpf	19	C	error	error	3	42d	37d	💬 11 [19d]
INFO: rcu detected stall in vma_merge_new_range (3) bpf	1	syz	error	error	1	59d	56d
KMSAN: uninit-value in bpf_prog_test_run_skb bpf	7	C			4	3d01h	83d	PATCH [57d]
general protection fault in bpf_get_local_storage (2) bpf	2	C			3	73d	83d	💬 3 [83d]
INFO: rcu detected stall in watchdog (2) bpf trace	1	C	error	error	2	13d	91d	💬 3 [76d]
inconsistent lock state in bpf_lru_push_free bpf	4	C	error		251	3d18h	92d
KMSAN: uninit-value in handle_bug bpf	7	C			266	3h47m	108d	💬 1 [4d05h]
possible deadlock in bpf_lru_push_free (2) bpf	4	C	error	inconclusive	1	17d	131d	💬 3 [15d]
KASAN: stack-out-of-bounds Write in __bpf_get_stack bpf	21	C	done	error	7	51d	134d	PATCH [70d]
WARNING in reg_bounds_sanity_check (2) bpf	-1	C	done		19761	20h04m	200d	PATCH [1d05h]
INFO: rcu detected stall in task_work_add bpf	1	syz	error	error	5	5d09h	218d
possible deadlock in down_trylock (3) bpf trace	4	C	error		2	8d19h	232d	💬 2 [139d]
INFO: task hung in dev_map_free (3) bpf net	1				106	13d	254d
INFO: rcu detected stall in task_numa_work (2) bpf mm	1	C	error	error	23	12d	444d
possible deadlock in __lock_task_sighand (3) bpf	4	C	done	inconclusive	112	603d	666d
KMSAN: uninit-value in dev_map_hash_lookup_elem bpf net	7	C			20	648d	675d
possible deadlock in __stack_map_get bpf	4	C	error	error	56	352d	705d	💬 2 [366d]
possible deadlock in sock_map_delete_elem bpf net	4	C	error	done	869	651d	736d

Title	Rank 🛈	Repro	Count	Last	Reported
KCSAN: data-race in __bpf_lru_list_rotate / bpf_lru_push_free (3) bpf	6		2	32d	50d
KCSAN: data-race in bq_flush_to_queue / cpu_map_kthread_run (2) bpf net	6		429	13h02m	80d
KCSAN: data-race in pcpu_alloc_noprof / pcpu_block_update_hint_alloc bpf netfilter	6	syz	198	487d	674d