Warning: Permanently added '10.128.0.226' (ECDSA) to the list of known hosts. executing program [ 55.523888] audit: type=1400 audit(1582553796.125:36): avc: denied { map } for pid=8293 comm="syz-executor950" path="/root/syz-executor950892875" 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 [ 55.547906] IPVS: ftp: loaded support on port[0] = 21 [ 55.615648] [ 55.617403] ================================ [ 55.621792] WARNING: inconsistent lock state [ 55.626183] 4.19.106-syzkaller #0 Not tainted [ 55.630710] -------------------------------- [ 55.635097] inconsistent {SOFTIRQ-ON-W} -> {IN-SOFTIRQ-W} usage. [ 55.641223] swapper/0/0 [HC0[0]:SC1[1]:HE1:SE0] takes: [ 55.646501] 000000006ecf415e (rxrpc_conn_id_lock){+.?.}, at: rxrpc_put_client_connection_id.part.0+0x19/0x70 [ 55.656493] {SOFTIRQ-ON-W} state was registered at: [ 55.661543] lock_acquire+0x16f/0x3f0 [ 55.665479] _raw_spin_lock+0x2f/0x40 [ 55.669382] rxrpc_connect_call+0x948/0x4920 [ 55.673869] rxrpc_new_client_call+0x8e7/0x1880 [ 55.678623] rxrpc_do_sendmsg+0xfc3/0x1ca3 [ 55.682935] rxrpc_sendmsg+0x4a0/0x5b0 [ 55.686897] sock_sendmsg+0xd7/0x130 [ 55.690683] ___sys_sendmsg+0x3e2/0x920 [ 55.694728] __sys_sendmmsg+0x1bf/0x4e0 [ 55.698810] __x64_sys_sendmmsg+0x9d/0x100 [ 55.703112] do_syscall_64+0xfd/0x620 [ 55.706982] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 55.712234] irq event stamp: 180920 [ 55.715849] hardirqs last enabled at (180920): [] _raw_spin_unlock_irqrestore+0x6b/0xe0 [ 55.725645] hardirqs last disabled at (180919): [] _raw_spin_lock_irqsave+0x6f/0xcd [ 55.734999] softirqs last enabled at (180814): [] _local_bh_enable+0x1c/0x30 [ 55.743853] softirqs last disabled at (180815): [] irq_exit+0x180/0x1d0 [ 55.752147] [ 55.752147] other info that might help us debug this: [ 55.758812] Possible unsafe locking scenario: [ 55.758812] [ 55.764886] CPU0 [ 55.767473] ---- [ 55.770472] lock(rxrpc_conn_id_lock); [ 55.774474] [ 55.777210] lock(rxrpc_conn_id_lock); [ 55.781339] [ 55.781339] *** DEADLOCK *** [ 55.781339] [ 55.787383] 1 lock held by swapper/0/0: [ 55.791338] #0: 00000000a7255a0b (rcu_callback){....}, at: rcu_process_callbacks+0xc79/0x1a30 [ 55.800102] [ 55.800102] stack backtrace: [ 55.804589] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.19.106-syzkaller #0 [ 55.811712] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 55.821047] Call Trace: [ 55.823614] [ 55.825755] dump_stack+0x197/0x210 [ 55.829371] print_usage_bug.cold+0x330/0x42a [ 55.833868] ? save_stack_trace+0x1a/0x20 [ 55.838007] mark_lock+0xd1b/0x1370 [ 55.841621] ? check_usage_backwards+0x340/0x340 [ 55.846369] __lock_acquire+0xc62/0x49c0 [ 55.850427] ? mark_held_locks+0x100/0x100 [ 55.854690] ? mark_held_locks+0x100/0x100 [ 55.858946] ? __lock_acquire+0x6ee/0x49c0 [ 55.863172] ? debug_object_deactivate+0x1e4/0x360 [ 55.868090] ? find_held_lock+0x35/0x130 [ 55.872141] ? debug_object_deactivate+0x1e4/0x360 [ 55.877059] ? mark_held_locks+0x100/0x100 [ 55.882145] ? debug_object_deactivate+0x1e4/0x360 [ 55.887057] ? _raw_spin_unlock_irqrestore+0x6b/0xe0 [ 55.892150] lock_acquire+0x16f/0x3f0 [ 55.895968] ? rxrpc_put_client_connection_id.part.0+0x19/0x70 [ 55.901926] _raw_spin_lock+0x2f/0x40 [ 55.905839] ? rxrpc_put_client_connection_id.part.0+0x19/0x70 [ 55.911820] rxrpc_put_client_connection_id.part.0+0x19/0x70 [ 55.917604] rxrpc_put_client_conn+0x6c6/0xc20 [ 55.922175] ? rxrpc_rcu_destroy_call+0xbd/0x200 [ 55.926919] ? rxrpc_process_call.cold+0x20/0x20 [ 55.931667] rxrpc_rcu_destroy_call+0xbd/0x200 [ 55.936269] rcu_process_callbacks+0xba0/0x1a30 [ 55.940973] ? __rcu_read_unlock+0x170/0x170 [ 55.945376] __do_softirq+0x25c/0x921 [ 55.949170] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 55.954691] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 55.960250] irq_exit+0x180/0x1d0 [ 55.963722] smp_apic_timer_interrupt+0x13b/0x550 [ 55.968869] apic_timer_interrupt+0xf/0x20 [ 55.973084] [ 55.975309] RIP: 0010:native_safe_halt+0xe/0x10 [ 55.979966] Code: ff ff 48 89 df e8 22 c7 4d fa eb 82 e9 07 00 00 00 0f 00 2d 44 30 53 00 f4 c3 66 90 e9 07 00 00 00 0f 00 2d 34 30 53 00 fb f4 90 55 48 89 e5 41 57 41 56 41 55 41 54 53 e8 6e 9b 04 fa e8 09 [ 55.998851] RSP: 0018:ffffffff88e07cb0 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13 [ 56.006545] RAX: 1ffffffff11e4ab4 RBX: ffffffff88e79ec0 RCX: 0000000000000000 [ 56.013797] RDX: dffffc0000000000 RSI: 0000000000000001 RDI: ffffffff88e7a73c [ 56.021048] RBP: ffffffff88e07ce0 R08: ffffffff88e79ec0 R09: 0000000000000000 [ 56.028312] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 56.035573] R13: ffffffff88f25590 R14: 0000000000000000 R15: ffffffff88e79ec0 [ 56.042850] ? default_idle+0x4e/0x320 [ 56.046728] arch_cpu_idle+0xa/0x10 [ 56.050342] default_idle_call+0x36/0x90 [ 56.054406] do_idle+0x30c/0x4d0 [ 56.057763] ? arch_cpu_idle_exit+0x80/0x80 [ 56.062074] ? check_preemption_disabled+0x48/0x290 [ 56.067120] cpu_startup_entry+0xc8/0xe0 [ 56.071576] ? cpu_in_idle+0x20/0x20 [ 56.075280] rest_init+0x219/0x222 [ 56.078856] ? trace_event_define_fields_vector_free_moved+0xb4/0xb4 [ 56.085339] start_kernel+0x7ec/0x825 [ 56.089226] ? mem_encrypt_init+0xb/0xb [ 56.093190] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 56.098713] ? x86_family+0x41/0x50 [ 56.102328] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 56.107856] x86_64_start_reservations+0x29/0x2b [ 56.112635] x86_64_start_kernel+0x77/0x7b [ 56.116862] secondary_startup_64+0xa4/0xb0