[ 40.156452] audit: type=1800 audit(1581948915.727:32): pid=7854 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="startpar" name="ssh" dev="sda1" ino=2450 res=0
7[1G[[32m ok [39;49m8[?25h[?0c.
Starting mcstransd:
[....] 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: [ 45.098828] kauditd_printk_skb: 2 callbacks suppressed
[ 45.098843] audit: type=1400 audit(1581948920.727:35): avc: denied { map } for pid=8030 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 '10.128.0.238' (ECDSA) to the list of known hosts.
[ 61.449851] audit: type=1400 audit(1581948937.077:36): avc: denied { map } for pid=8042 comm="syz-executor176" path="/root/syz-executor176371541" dev="sda1" ino=1426 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1
[ 61.465141] IPVS: ftp: loaded support on port[0] = 21
executing program
[ 61.502652] audit: type=1400 audit(1581948937.127:37): avc: denied { create } for pid=8043 comm="syz-executor176" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_generic_socket permissive=1
[ 61.526925] audit: type=1400 audit(1581948937.127:38): avc: denied { write } for pid=8043 comm="syz-executor176" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_generic_socket permissive=1
[ 61.551166] audit: type=1400 audit(1581948937.127:39): avc: denied { read } for pid=8043 comm="syz-executor176" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_generic_socket permissive=1
[ 61.556137]
[ 61.576587] ================================
[ 61.581012] WARNING: inconsistent lock state
[ 61.585403] 4.19.104-syzkaller #0 Not tainted
[ 61.589880] --------------------------------
[ 61.594274] inconsistent {SOFTIRQ-ON-W} -> {IN-SOFTIRQ-W} usage.
[ 61.600404] swapper/1/0 [HC0[0]:SC1[1]:HE1:SE0] takes:
[ 61.605658] 00000000bdc64b10 (&(&local->client_conns_lock)->rlock){+.?.}, at: rxrpc_put_client_conn+0x683/0xc20
[ 61.615896] {SOFTIRQ-ON-W} state was registered at:
[ 61.620914] lock_acquire+0x16f/0x3f0
[ 61.624877] _raw_spin_lock+0x2f/0x40
[ 61.628762] rxrpc_connect_call+0x351/0x4920
[ 61.633245] rxrpc_new_client_call+0x8e7/0x1880
[ 61.638021] rxrpc_do_sendmsg+0xfc3/0x1ca3
[ 61.642333] rxrpc_sendmsg+0x4a0/0x5b0
[ 61.646296] sock_sendmsg+0xd7/0x130
[ 61.650079] ___sys_sendmsg+0x3e2/0x920
[ 61.654396] __sys_sendmmsg+0x1bf/0x4e0
[ 61.658439] __x64_sys_sendmmsg+0x9d/0x100
[ 61.662751] do_syscall_64+0xfd/0x620
[ 61.666626] entry_SYSCALL_64_after_hwframe+0x49/0xbe
[ 61.671881] irq event stamp: 135260
[ 61.675504] hardirqs last enabled at (135260): [<ffffffff87553a3b>] _raw_spin_unlock_irqrestore+0x6b/0xe0
[ 61.685442] hardirqs last disabled at (135259): [<ffffffff87553ccf>] _raw_spin_lock_irqsave+0x6f/0xcd
[ 61.694917] softirqs last enabled at (134900): [<ffffffff81402cdc>] _local_bh_enable+0x1c/0x30
[ 61.703761] softirqs last disabled at (134901): [<ffffffff81405860>] irq_exit+0x180/0x1d0
[ 61.712060]
[ 61.712060] other info that might help us debug this:
[ 61.718709] Possible unsafe locking scenario:
[ 61.718709]
[ 61.724855] CPU0
[ 61.727425] ----
[ 61.729997] lock(&(&local->client_conns_lock)->rlock);
[ 61.735433] <Interrupt>
[ 61.738166] lock(&(&local->client_conns_lock)->rlock);
[ 61.743782]
[ 61.743782] *** DEADLOCK ***
[ 61.743782]
[ 61.749827] 1 lock held by swapper/1/0:
[ 61.753792] #0: 000000008154735f (rcu_callback){....}, at: rcu_process_callbacks+0xc79/0x1a30
[ 61.762547]
[ 61.762547] stack backtrace:
[ 61.767031] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 4.19.104-syzkaller #0
[ 61.774113] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 61.783453] Call Trace:
[ 61.786024] <IRQ>
[ 61.788165] dump_stack+0x197/0x210
[ 61.791777] print_usage_bug.cold+0x330/0x42a
[ 61.796265] ? save_stack_trace+0x1a/0x20
[ 61.800400] mark_lock+0xd1b/0x1370
[ 61.804060] ? check_usage_backwards+0x340/0x340
[ 61.808810] __lock_acquire+0xc62/0x49c0
[ 61.812856] ? mark_held_locks+0x100/0x100
[ 61.817205] ? save_stack+0x45/0xd0
[ 61.820831] ? __kasan_slab_free+0x102/0x150
[ 61.825225] ? mark_held_locks+0x100/0x100
[ 61.829477] ? find_held_lock+0x35/0x130
[ 61.833578] ? debug_object_deactivate+0x1e4/0x360
[ 61.839826] ? mark_held_locks+0x100/0x100
[ 61.844104] ? debug_object_deactivate+0x1e4/0x360
[ 61.849057] ? _raw_spin_unlock_irqrestore+0x6b/0xe0
[ 61.854260] ? lockdep_hardirqs_on+0x19b/0x5d0
[ 61.858883] lock_acquire+0x16f/0x3f0
[ 61.862676] ? rxrpc_put_client_conn+0x683/0xc20
[ 61.867420] _raw_spin_lock+0x2f/0x40
[ 61.871228] ? rxrpc_put_client_conn+0x683/0xc20
[ 61.875970] rxrpc_put_client_conn+0x683/0xc20
[ 61.880549] ? rxrpc_rcu_destroy_call+0xbd/0x200
[ 61.885354] ? rxrpc_process_call.cold+0x20/0x20
[ 61.890107] rxrpc_rcu_destroy_call+0xbd/0x200
[ 61.894697] rcu_process_callbacks+0xba0/0x1a30
[ 61.899373] ? __rcu_read_unlock+0x170/0x170
[ 61.903771] __do_softirq+0x25c/0x921
[ 61.907567] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[ 61.913093] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[ 61.918625] irq_exit+0x180/0x1d0
[ 61.922105] smp_apic_timer_interrupt+0x13b/0x550
[ 61.926940] apic_timer_interrupt+0xf/0x20
[ 61.931173] </IRQ>
[ 61.933455] RIP: 0010:native_safe_halt+0xe/0x10
[ 61.938127] Code: ff ff 48 89 df e8 62 aa 4d fa eb 82 e9 07 00 00 00 0f 00 2d 74 c2 52 00 f4 c3 66 90 e9 07 00 00 00 0f 00 2d 64 c2 52 00 fb f4 <c3> 90 55 48 89 e5 41 57 41 56 41 55 41 54 53 e8 6e 7e 04 fa e8 f9
[ 61.957157] RSP: 0018:ffff8880aa3b7d08 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[ 61.965004] RAX: 1ffffffff11e4aec RBX: ffff8880aa3a43c0 RCX: 0000000000000000
[ 61.972269] RDX: dffffc0000000000 RSI: 0000000000000001 RDI: ffff8880aa3a4c3c
[ 61.979533] RBP: ffff8880aa3b7d38 R08: ffff8880aa3a43c0 R09: 0000000000000000
[ 61.986795] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000001
[ 61.994060] R13: ffffffff88f25750 R14: 0000000000000000 R15: ffff8880aa3a43c0
[ 62.001420] ? default_idle+0x4e/0x320
[ 62.005305] arch_cpu_idle+0xa/0x10
[ 62.008931] default_idle_call+0x36/0x90
[ 62.012989] do_idle+0x30c/0x4d0
[ 62.016349] ? trace_hardirqs_on+0x67/0x220
[ 62.020675] ? arch_cpu_idle_exit+0x80/0x80
[ 62.024983] ? _raw_spin_unlock_irqrestore+0xa4/0xe0
[ 62.030125] ? complete+0x61/0x80
[ 62.033606] cpu_startup_entry+0xc8/0xe0
[ 62.037714] ? cpu_in_idle+0x20/0x20
[ 62.041418] ? setup_APIC_timer+0x1aa/0x200
[ 62.045738] start_secondary+0x3e8/0x5b0
[ 62.049799] ? set_cpu_sibling_map+0x1860/0x1860
[ 62.054555] secondary_startup_64+0xa4/0xb0