[ 41.337821] audit: type=1800 audit(1582268667.421:31): pid=7912 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2469 res=0
Starting mcstransd:
[....] Starting periodic command scheduler: cron[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c.
[....] Starting file context maintaining daemon: restorecond[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c.
[....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c.
Debian GNU/Linux 7 syzkaller ttyS0
syzkaller login: [ 46.218651] kauditd_printk_skb: 3 callbacks suppressed
[ 46.218666] audit: type=1400 audit(1582268672.381:35): avc: denied { map } for pid=8086 comm="bash" path="/bin/bash" dev="sda1" ino=1457 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1
Warning: Permanently added '10.128.0.17' (ECDSA) to the list of known hosts.
executing program
[ 53.049922] audit: type=1400 audit(1582268679.211:36): avc: denied { map } for pid=8098 comm="syz-executor885" path="/root/syz-executor885818838" 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
[ 53.066118] IPVS: ftp: loaded support on port[0] = 21
[ 53.137414]
[ 53.139080] ================================
[ 53.143472] WARNING: inconsistent lock state
[ 53.147863] 4.19.105-syzkaller #0 Not tainted
[ 53.152337] --------------------------------
[ 53.157676] inconsistent {SOFTIRQ-ON-W} -> {IN-SOFTIRQ-W} usage.
[ 53.163799] swapper/0/0 [HC0[0]:SC1[1]:HE1:SE0] takes:
[ 53.169057] 0000000046f3bd02 (&(&local->client_conns_lock)->rlock){+.?.}, at: rxrpc_put_client_conn+0x683/0xc20
[ 53.179274] {SOFTIRQ-ON-W} state was registered at:
[ 53.184275] lock_acquire+0x16f/0x3f0
[ 53.188146] _raw_spin_lock+0x2f/0x40
[ 53.192014] rxrpc_connect_call+0x351/0x4920
[ 53.196612] rxrpc_new_client_call+0x8e7/0x1880
[ 53.201407] rxrpc_do_sendmsg+0xfc3/0x1ca3
[ 53.205717] rxrpc_sendmsg+0x4a0/0x5b0
[ 53.209678] sock_sendmsg+0xd7/0x130
[ 53.213506] ___sys_sendmsg+0x3e2/0x920
[ 53.217547] __sys_sendmmsg+0x1bf/0x4e0
[ 53.221605] __x64_sys_sendmmsg+0x9d/0x100
[ 53.225912] do_syscall_64+0xfd/0x620
[ 53.229787] entry_SYSCALL_64_after_hwframe+0x49/0xbe
[ 53.235040] irq event stamp: 178986
[ 53.238697] hardirqs last enabled at (178986): [<ffffffff87549a3b>] _raw_spin_unlock_irqrestore+0x6b/0xe0
[ 53.248489] hardirqs last disabled at (178985): [<ffffffff87549ccf>] _raw_spin_lock_irqsave+0x6f/0xcd
[ 53.257846] softirqs last enabled at (178862): [<ffffffff813fdc3c>] _local_bh_enable+0x1c/0x30
[ 53.266682] softirqs last disabled at (178863): [<ffffffff814007c0>] irq_exit+0x180/0x1d0
[ 53.274980]
[ 53.274980] other info that might help us debug this:
[ 53.281639] Possible unsafe locking scenario:
[ 53.281639]
[ 53.287738] CPU0
[ 53.290304] ----
[ 53.292869] lock(&(&local->client_conns_lock)->rlock);
[ 53.298308] <Interrupt>
[ 53.301051] lock(&(&local->client_conns_lock)->rlock);
[ 53.306668]
[ 53.306668] *** DEADLOCK ***
[ 53.306668]
[ 53.312719] 1 lock held by swapper/0/0:
[ 53.316813] #0: 000000001f94741f (rcu_callback){....}, at: rcu_process_callbacks+0xc79/0x1a30
[ 53.325566]
[ 53.325566] stack backtrace:
[ 53.330064] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.19.105-syzkaller #0
[ 53.337157] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 53.346503] Call Trace:
[ 53.349076] <IRQ>
[ 53.351224] dump_stack+0x197/0x210
[ 53.354843] print_usage_bug.cold+0x330/0x42a
[ 53.359325] ? save_stack_trace+0x1a/0x20
[ 53.363519] mark_lock+0xd1b/0x1370
[ 53.367151] ? check_usage_backwards+0x340/0x340
[ 53.371912] __lock_acquire+0xc62/0x49c0
[ 53.375975] ? mark_held_locks+0x100/0x100
[ 53.380207] ? save_stack+0x45/0xd0
[ 53.383824] ? __kasan_slab_free+0x102/0x150
[ 53.388372] ? kasan_slab_free+0xe/0x10
[ 53.392346] ? kfree+0xcf/0x220
[ 53.395719] ? mark_held_locks+0x100/0x100
[ 53.400068] ? find_held_lock+0x35/0x130
[ 53.404153] ? debug_object_deactivate+0x1e4/0x360
[ 53.409088] ? mark_held_locks+0x100/0x100
[ 53.413310] ? debug_object_deactivate+0x1e4/0x360
[ 53.418232] ? _raw_spin_unlock_irqrestore+0x6b/0xe0
[ 53.423340] ? lockdep_hardirqs_on+0x19b/0x5d0
[ 53.427914] lock_acquire+0x16f/0x3f0
[ 53.431724] ? rxrpc_put_client_conn+0x683/0xc20
[ 53.436748] _raw_spin_lock+0x2f/0x40
[ 53.440548] ? rxrpc_put_client_conn+0x683/0xc20
[ 53.445302] rxrpc_put_client_conn+0x683/0xc20
[ 53.450011] ? rxrpc_rcu_destroy_call+0xbd/0x200
[ 53.455715] ? rxrpc_process_call.cold+0x20/0x20
[ 53.460637] rxrpc_rcu_destroy_call+0xbd/0x200
[ 53.465221] rcu_process_callbacks+0xba0/0x1a30
[ 53.469891] ? __rcu_read_unlock+0x170/0x170
[ 53.474289] __do_softirq+0x25c/0x921
[ 53.478082] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[ 53.483669] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[ 53.489212] irq_exit+0x180/0x1d0
[ 53.492658] smp_apic_timer_interrupt+0x13b/0x550
[ 53.497500] apic_timer_interrupt+0xf/0x20
[ 53.501738] </IRQ>
[ 53.504480] RIP: 0010:native_safe_halt+0xe/0x10
[ 53.509178] 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 <c3> 90 55 48 89 e5 41 57 41 56 41 55 41 54 53 e8 be cc 04 fa e8 d9
[ 53.528117] RSP: 0018:ffffffff88e07cb0 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[ 53.536624] RAX: 1ffffffff11e4ad4 RBX: ffffffff88e79ec0 RCX: 0000000000000000
[ 53.543885] RDX: dffffc0000000000 RSI: 0000000000000001 RDI: ffffffff88e7a73c
[ 53.551268] RBP: ffffffff88e07ce0 R08: ffffffff88e79ec0 R09: 0000000000000000
[ 53.558534] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[ 53.566032] R13: ffffffff88f25690 R14: 0000000000000000 R15: ffffffff88e79ec0
[ 53.573313] ? default_idle+0x4e/0x320
[ 53.577206] arch_cpu_idle+0xa/0x10
[ 53.581802] default_idle_call+0x36/0x90
[ 53.585865] do_idle+0x30c/0x4d0
[ 53.589236] ? arch_cpu_idle_exit+0x80/0x80
[ 53.593554] ? check_preemption_disabled+0x48/0x290
[ 53.598571] cpu_startup_entry+0xc8/0xe0
[ 53.602669] ? cpu_in_idle+0x20/0x20
[ 53.606376] rest_init+0x219/0x222
[ 53.609907] ? trace_event_define_fields_vector_free_moved+0xb4/0xb4
[ 53.616396] start_kernel+0x7ec/0x825
[ 53.620196] ? mem_encrypt_init+0xb/0xb
[ 53.624158] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[ 53.629694] ? x86_family+0x41/0x50
[ 53.633308] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[ 53.63