Warning: Permanently added '10.128.0.139' (ECDSA) to the list of known hosts. executing program [ 53.496954] audit: type=1400 audit(1582353574.060:36): avc: denied { map } for pid=8104 comm="syz-executor722" path="/root/syz-executor722928247" dev="sda1" ino=16484 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 [ 53.517671] IPVS: ftp: loaded support on port[0] = 21 [ 53.588534] [ 53.590326] ================================ [ 53.594733] WARNING: inconsistent lock state [ 53.599137] 4.19.105-syzkaller #0 Not tainted [ 53.603620] -------------------------------- [ 53.608272] inconsistent {SOFTIRQ-ON-W} -> {IN-SOFTIRQ-W} usage. [ 53.614499] swapper/1/0 [HC0[0]:SC1[1]:HE1:SE0] takes: [ 53.620365] 00000000a00a0836 (&(&local->client_conns_lock)->rlock){+.?.}, at: rxrpc_put_client_conn+0x683/0xc20 [ 53.630604] {SOFTIRQ-ON-W} state was registered at: [ 53.635631] lock_acquire+0x16f/0x3f0 [ 53.639553] _raw_spin_lock+0x2f/0x40 [ 53.643466] rxrpc_connect_call+0x351/0x4920 [ 53.647967] rxrpc_new_client_call+0x8e7/0x1880 [ 53.652812] rxrpc_do_sendmsg+0xfc3/0x1ca3 [ 53.657144] rxrpc_sendmsg+0x4a0/0x5b0 [ 53.661129] sock_sendmsg+0xd7/0x130 [ 53.664982] ___sys_sendmsg+0x3e2/0x920 [ 53.669042] __sys_sendmmsg+0x1bf/0x4e0 [ 53.673182] __x64_sys_sendmmsg+0x9d/0x100 [ 53.677497] do_syscall_64+0xfd/0x620 [ 53.681560] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 53.686914] irq event stamp: 148786 [ 53.690644] hardirqs last enabled at (148786): [] _raw_spin_unlock_irqrestore+0x6b/0xe0 [ 53.700787] hardirqs last disabled at (148785): [] _raw_spin_lock_irqsave+0x6f/0xcd [ 53.710463] softirqs last enabled at (148658): [] _local_bh_enable+0x1c/0x30 [ 53.719416] softirqs last disabled at (148659): [] irq_exit+0x180/0x1d0 [ 53.727987] [ 53.727987] other info that might help us debug this: [ 53.734869] Possible unsafe locking scenario: [ 53.734869] [ 53.740944] CPU0 [ 53.743610] ---- [ 53.746181] lock(&(&local->client_conns_lock)->rlock); [ 53.751659] [ 53.754513] lock(&(&local->client_conns_lock)->rlock); [ 53.760740] [ 53.760740] *** DEADLOCK *** [ 53.760740] [ 53.767315] 1 lock held by swapper/1/0: [ 53.771282] #0: 0000000095246359 (rcu_callback){....}, at: rcu_process_callbacks+0xc79/0x1a30 [ 53.780437] [ 53.780437] stack backtrace: [ 53.784931] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 4.19.105-syzkaller #0 [ 53.792126] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 53.801489] Call Trace: [ 53.804061] [ 53.806207] dump_stack+0x197/0x210 [ 53.809950] print_usage_bug.cold+0x330/0x42a [ 53.814450] ? save_stack_trace+0x1a/0x20 [ 53.818884] mark_lock+0xd1b/0x1370 [ 53.822512] ? check_usage_backwards+0x340/0x340 [ 53.827358] __lock_acquire+0xc62/0x49c0 [ 53.831883] ? mark_held_locks+0x100/0x100 [ 53.836493] ? save_stack+0x45/0xd0 [ 53.840553] ? __kasan_slab_free+0x102/0x150 [ 53.845474] ? kasan_slab_free+0xe/0x10 [ 53.849668] ? kfree+0xcf/0x220 [ 53.853404] ? mark_held_locks+0x100/0x100 [ 53.858269] ? find_held_lock+0x35/0x130 [ 53.862925] ? debug_object_deactivate+0x1e4/0x360 [ 53.868226] ? mark_held_locks+0x100/0x100 [ 53.873035] ? debug_object_deactivate+0x1e4/0x360 [ 53.878281] ? _raw_spin_unlock_irqrestore+0x6b/0xe0 [ 53.884781] ? lockdep_hardirqs_on+0x19b/0x5d0 [ 53.890732] lock_acquire+0x16f/0x3f0 [ 53.895126] ? rxrpc_put_client_conn+0x683/0xc20 [ 53.899979] _raw_spin_lock+0x2f/0x40 [ 53.903891] ? rxrpc_put_client_conn+0x683/0xc20 [ 53.911326] rxrpc_put_client_conn+0x683/0xc20 [ 53.918177] ? rxrpc_rcu_destroy_call+0xbd/0x200 [ 53.923487] ? rxrpc_process_call.cold+0x20/0x20 [ 53.928377] rxrpc_rcu_destroy_call+0xbd/0x200 [ 53.933339] rcu_process_callbacks+0xba0/0x1a30 [ 53.938277] ? __rcu_read_unlock+0x170/0x170 [ 53.942903] __do_softirq+0x25c/0x921 [ 53.946823] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 53.952865] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 53.958870] irq_exit+0x180/0x1d0 [ 53.962337] smp_apic_timer_interrupt+0x13b/0x550 [ 53.967189] apic_timer_interrupt+0xf/0x20 [ 53.971426] [ 53.973759] RIP: 0010:native_safe_halt+0xe/0x10 [ 53.978527] Code: ff ff 48 89 df e8 92 f8 4d fa eb 82 e9 07 00 00 00 0f 00 2d 74 61 53 00 f4 c3 66 90 e9 07 00 00 00 0f 00 2d 64 61 53 00 fb f4 90 55 48 89 e5 41 57 41 56 41 55 41 54 53 e8 be cc 04 fa e8 d9 [ 53.997930] RSP: 0018:ffff8880aa3b7d08 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 [ 54.005984] RAX: 1ffffffff11e4ad4 RBX: ffff8880aa3a43c0 RCX: 0000000000000000 [ 54.014262] RDX: dffffc0000000000 RSI: 0000000000000001 RDI: ffff8880aa3a4c3c [ 54.022252] RBP: ffff8880aa3b7d38 R08: ffff8880aa3a43c0 R09: 0000000000000000 [ 54.030294] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000001 [ 54.038285] R13: ffffffff88f25690 R14: 0000000000000000 R15: ffff8880aa3a43c0 [ 54.046582] ? default_idle+0x4e/0x320 [ 54.050553] arch_cpu_idle+0xa/0x10 [ 54.054282] default_idle_call+0x36/0x90 [ 54.058466] do_idle+0x30c/0x4d0 [ 54.061867] ? trace_hardirqs_on+0x67/0x220 [ 54.066573] ? arch_cpu_idle_exit+0x80/0x80 [ 54.071885] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 54.078442] ? complete+0x61/0x80 [ 54.082733] cpu_startup_entry+0xc8/0xe0 [ 54.086942] ? cpu_in_idle+0x20/0x20 [ 54.090926] ? setup_APIC_timer+0x1aa/0x200 [ 54.095380] start_secondary+0x3e8/0x5b0 [ 54.100169] ? set_cpu_sibling_map+0x1860/0x1860 [ 54.106499] secondary_startup_64+0xa4/0xb0