Warning: Permanently added '10.128.0.166' (ECDSA) to the list of known hosts. [ 45.269385] random: sshd: uninitialized urandom read (32 bytes read) [ 45.398917] audit: type=1400 audit(1582549123.096:36): avc: denied { map } for pid=7374 comm="syz-executor434" path="/root/syz-executor434763899" dev="sda1" ino=16483 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 [ 45.660995] IPVS: ftp: loaded support on port[0] = 21 executing program [ 46.460187] [ 46.461846] ================================ [ 46.466452] WARNING: inconsistent lock state [ 46.470970] 4.14.171-syzkaller #0 Not tainted [ 46.475575] -------------------------------- [ 46.479981] inconsistent {SOFTIRQ-ON-W} -> {IN-SOFTIRQ-W} usage. [ 46.486157] swapper/0/0 [HC0[0]:SC1[1]:HE1:SE0] takes: [ 46.491814] (&(&local->client_conns_lock)->rlock){+.?.}, at: [] rxrpc_put_client_conn+0x538/0xaa0 [ 46.502767] {SOFTIRQ-ON-W} state was registered at: [ 46.507789] __lock_acquire+0xc33/0x4620 [ 46.512056] lock_acquire+0x16f/0x430 [ 46.516144] _raw_spin_lock+0x2f/0x40 [ 46.520273] rxrpc_connect_call+0x2f5/0x41a0 [ 46.525045] rxrpc_new_client_call+0x8f7/0x1420 [ 46.529798] rxrpc_do_sendmsg+0x92a/0x1109 [ 46.534345] rxrpc_sendmsg+0x4d1/0x610 [ 46.538565] sock_sendmsg+0xce/0x110 [ 46.542570] ___sys_sendmsg+0x349/0x840 [ 46.546725] __sys_sendmmsg+0x152/0x3a0 [ 46.551324] SyS_sendmmsg+0x35/0x60 [ 46.555268] do_syscall_64+0x1e8/0x640 [ 46.559361] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 46.564852] irq event stamp: 267878 [ 46.568653] hardirqs last enabled at (267878): [] _raw_spin_unlock_irqrestore+0x6b/0xe0 [ 46.579239] hardirqs last disabled at (267877): [] _raw_spin_lock_irqsave+0x6f/0xcd [ 46.589969] softirqs last enabled at (267850): [] _local_bh_enable+0x1c/0x30 [ 46.598815] softirqs last disabled at (267851): [] irq_exit+0x160/0x1b0 [ 46.607778] [ 46.607778] other info that might help us debug this: [ 46.614653] Possible unsafe locking scenario: [ 46.614653] [ 46.620702] CPU0 [ 46.623443] ---- [ 46.626115] lock(&(&local->client_conns_lock)->rlock); [ 46.631585] [ 46.634366] lock(&(&local->client_conns_lock)->rlock); [ 46.640313] [ 46.640313] *** DEADLOCK *** [ 46.640313] [ 46.646922] 1 lock held by swapper/0/0: [ 46.651261] #0: (rcu_callback){....}, at: [] rcu_process_callbacks+0x893/0x12b0 [ 46.660654] [ 46.660654] stack backtrace: [ 46.665258] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.14.171-syzkaller #0 [ 46.672736] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 46.682370] Call Trace: [ 46.685181] [ 46.687448] dump_stack+0x142/0x197 [ 46.691224] print_usage_bug.cold+0x330/0x42a [ 46.695987] ? save_stack_trace+0x16/0x20 [ 46.700196] mark_lock+0xdbd/0x1240 [ 46.703817] ? check_usage_backwards+0x2f0/0x2f0 [ 46.709031] __lock_acquire+0xb57/0x4620 [ 46.713480] ? trace_hardirqs_on+0x10/0x10 [ 46.717722] ? trace_hardirqs_on+0x10/0x10 [ 46.722142] ? find_held_lock+0x35/0x130 [ 46.726298] ? trace_hardirqs_on+0x10/0x10 [ 46.730982] ? save_trace+0x290/0x290 [ 46.735036] ? _raw_spin_unlock_irqrestore+0x6b/0xe0 [ 46.740302] lock_acquire+0x16f/0x430 [ 46.744105] ? rxrpc_put_client_conn+0x538/0xaa0 [ 46.749020] _raw_spin_lock+0x2f/0x40 [ 46.752929] ? rxrpc_put_client_conn+0x538/0xaa0 [ 46.757936] rxrpc_put_client_conn+0x538/0xaa0 [ 46.762541] ? rxrpc_rcu_destroy_call+0x88/0x190 [ 46.767455] rxrpc_rcu_destroy_call+0x88/0x190 [ 46.772122] ? rxrpc_start_call_timer+0x200/0x200 [ 46.777055] rcu_process_callbacks+0x7b8/0x12b0 [ 46.781729] ? call_rcu_sched+0x20/0x20 [ 46.785972] ? rcu_lockdep_current_cpu_online+0xf2/0x140 [ 46.791456] __do_softirq+0x244/0x9a0 [ 46.795249] ? sched_clock+0x2e/0x50 [ 46.799199] irq_exit+0x160/0x1b0 [ 46.802894] smp_apic_timer_interrupt+0x146/0x5e0 [ 46.807988] apic_timer_interrupt+0x96/0xa0 [ 46.812734] [ 46.815052] RIP: 0010:native_safe_halt+0xe/0x10 [ 46.819846] RSP: 0018:ffffffff87e07de8 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff10 [ 46.828131] RAX: 1ffffffff0fe2ccc RBX: ffffffff87e76240 RCX: 0000000000000000 [ 46.836309] RDX: dffffc0000000000 RSI: 0000000000000001 RDI: ffffffff87e76abc [ 46.843964] RBP: ffffffff87e07e10 R08: 1ffffffff1163f01 R09: 0000000000000000 [ 46.851242] R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff87f16650 [ 46.858638] R13: 0000000000000000 R14: 0000000000000000 R15: ffffffff87e76240 [ 46.866151] ? default_idle+0x4c/0x370 [ 46.870299] arch_cpu_idle+0xa/0x10 [ 46.873918] default_idle_call+0x36/0x90 [ 46.878469] do_idle+0x262/0x3d0 [ 46.882149] cpu_startup_entry+0x1b/0x20 [ 46.886254] rest_init+0x1d9/0x1e2 [ 46.889840] ? trace_event_define_fields_x86_irq_vector+0x2c/0x2c [ 46.896244] start_kernel+0x65f/0x67d [ 46.900176] ? mem_encrypt_init+0xb/0xb [ 46.904277] ? x86_family+0x32/0x40 [ 46.908042] ? load_ucode_bsp+0x1ea/0x1f6