[....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 35.089412] random: sshd: uninitialized urandom read (32 bytes read) [ 35.325294] kauditd_printk_skb: 10 callbacks suppressed [ 35.325302] audit: type=1400 audit(1575582831.786:35): avc: denied { map } for pid=7047 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 [ 35.430758] random: sshd: uninitialized urandom read (32 bytes read) [ 35.979775] random: sshd: uninitialized urandom read (32 bytes read) [ 38.459349] random: sshd: uninitialized urandom read (32 bytes read) Warning: Permanently added '10.128.15.221' (ECDSA) to the list of known hosts. [ 43.985125] random: sshd: uninitialized urandom read (32 bytes read) executing program executing program executing program [ 44.106392] audit: type=1400 audit(1575582840.566:36): avc: denied { map } for pid=7059 comm="syz-executor177" path="/root/syz-executor177567521" 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 [ 44.139298] sp0: Synchronizing with TNC [ 44.149770] [U] è executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 49.200230] BUG: sleeping function called from invalid context at kernel/locking/mutex.c:747 [ 49.209092] in_atomic(): 1, irqs_disabled(): 0, pid: 0, name: swapper/0 [ 49.216087] 1 lock held by swapper/0/0: [ 49.220086] #0: ((&sp->resync_t)){+.-.}, at: [] call_timer_fn+0xc8/0x670 [ 49.228707] Preemption disabled at: [ 49.228723] [] schedule_preempt_disabled+0x1d/0x20 [ 49.238888] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.14.158-syzkaller #0 executing program executing program executing program executing program executing program [ 49.245991] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 49.255353] Call Trace: [ 49.257936] [ 49.260089] dump_stack+0x142/0x197 [ 49.263740] ? schedule_preempt_disabled+0x1d/0x20 [ 49.268679] ___might_sleep.cold+0x1bd/0x1f6 [ 49.273096] __might_sleep+0x93/0xb0 [ 49.276811] ? tpk_write+0x5d/0x2c0 [ 49.280448] __mutex_lock+0xb9/0x1470 [ 49.284279] ? tpk_write+0x5d/0x2c0 [ 49.287927] ? mutex_trylock+0x1c0/0x1c0 [ 49.291989] ? trace_hardirqs_on+0x10/0x10 executing program [ 49.296479] ? debug_object_deactivate+0x1cc/0x350 [ 49.301418] ? find_held_lock+0x35/0x130 [ 49.305487] ? save_trace+0x290/0x290 [ 49.309288] mutex_lock_nested+0x16/0x20 [ 49.313346] ? mutex_lock_nested+0x16/0x20 [ 49.317563] tpk_write+0x5d/0x2c0 [ 49.321026] resync_tnc+0x1bc/0x3d0 [ 49.324634] call_timer_fn+0x161/0x670 [ 49.328507] ? sp_put+0x40/0x40 [ 49.331783] ? __next_timer_interrupt+0x140/0x140 [ 49.336625] ? trace_hardirqs_on_caller+0x19b/0x590 [ 49.341655] run_timer_softirq+0x5b7/0x1520 [ 49.345963] ? sp_put+0x40/0x40 [ 49.349259] ? add_timer+0xae0/0xae0 [ 49.352965] ? rcu_lockdep_current_cpu_online+0xf2/0x140 [ 49.358406] __do_softirq+0x244/0x9a0 [ 49.362190] ? sched_clock+0x2e/0x50 [ 49.365928] irq_exit+0x160/0x1b0 [ 49.369370] smp_apic_timer_interrupt+0x146/0x5e0 [ 49.374211] apic_timer_interrupt+0x96/0xa0 [ 49.378528] [ 49.380761] RIP: 0010:native_safe_halt+0xe/0x10 [ 49.385412] RSP: 0018:ffffffff87e07de8 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff10 [ 49.393106] RAX: 1ffffffff0fe2d2c RBX: ffffffff87e76240 RCX: 0000000000000000 [ 49.400374] RDX: dffffc0000000000 RSI: 0000000000000001 RDI: ffffffff87e76abc [ 49.407627] RBP: ffffffff87e07e10 R08: 1ffffffff1164501 R09: 0000000000000000 [ 49.414876] R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff87f16950 [ 49.422135] R13: 0000000000000000 R14: 0000000000000000 R15: ffffffff87e76240 [ 49.429434] ? default_idle+0x4c/0x370 [ 49.433320] arch_cpu_idle+0xa/0x10 [ 49.436930] default_idle_call+0x36/0x90 [ 49.440982] do_idle+0x262/0x3d0 [ 49.444330] cpu_startup_entry+0x1b/0x20 [ 49.448369] rest_init+0x1d9/0x1e2 [ 49.451901] ? trace_event_define_fields_x86_irq_vector+0x2c/0x2c [ 49.458120] start_kernel+0x6df/0x6fd [ 49.461903] ? mem_encrypt_init+0xb/0xb [ 49.465864] ? x86_family+0x32/0x40 [ 49.469475] ? load_ucode_bsp+0x1ea/0x1f6 [ 49.473607] x86_64_start_reservations+0x29/0x2b [ 49.478342] x86_64_start_kernel+0x77/0x7b [ 49.482584] secondary_startup_64+0xa5/0xb0 [ 49.486952] [ 49.488571] ================================ [ 49.492953] WARNING: inconsistent lock state [ 49.497337] 4.14.158-syzkaller #0 Tainted: G W [ 49.503029] -------------------------------- [ 49.507424] inconsistent {SOFTIRQ-ON-W} -> {IN-SOFTIRQ-W} usage. [ 49.513552] swapper/0/0 [HC0[0]:SC1[1]:HE1:SE0] takes: [ 49.518802] (&tpk_port.port_write_mutex){+.?.}, at: [] tpk_write+0x5d/0x2c0 [ 49.527897] {SOFTIRQ-ON-W} state was registered at: [ 49.532910] __lock_acquire+0xc33/0x4620 [ 49.537046] lock_acquire+0x16f/0x430 [ 49.540922] __mutex_lock+0xe8/0x1470 [ 49.544786] mutex_lock_nested+0x16/0x20 [ 49.548909] tpk_write+0x5d/0x2c0 [ 49.552424] sixpack_open+0x9b2/0xc85 [ 49.556287] tty_ldisc_open.isra.0+0x73/0xb0 [ 49.560763] tty_set_ldisc+0x29a/0x610 [ 49.564714] tty_ioctl+0x95b/0x1320 [ 49.568404] do_vfs_ioctl+0x7ae/0x1060 [ 49.572354] SyS_ioctl+0x8f/0xc0 [ 49.575787] do_syscall_64+0x1e8/0x640 [ 49.579738] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 49.584990] irq event stamp: 403338 [ 49.588609] hardirqs last enabled at (403338): [] restore_regs_and_return_to_kernel+0x0/0x27 [ 49.598831] hardirqs last disabled at (403337): [] common_interrupt+0x91/0x96 [ 49.610748] softirqs last enabled at (403236): [] _local_bh_enable+0x1c/0x30 [ 49.619618] softirqs last disabled at (403237): [] irq_exit+0x160/0x1b0 [ 49.628121] [ 49.628121] other info that might help us debug this: [ 49.634766] Possible unsafe locking scenario: [ 49.634766] [ 49.640815] CPU0 [ 49.643385] ---- [ 49.645944] lock(&tpk_port.port_write_mutex); [ 49.650593] [ 49.653336] lock(&tpk_port.port_write_mutex); [ 49.658156] [ 49.658156] *** DEADLOCK *** [ 49.658156] [ 49.664194] 1 lock held by swapper/0/0: [ 49.668144] #0: ((&sp->resync_t)){+.-.}, at: [] call_timer_fn+0xc8/0x670 [ 49.676721] [ 49.676721] stack backtrace: [ 49.681215] CPU: 0 PID: 0 Comm: swapper/0 Tainted: G W 4.14.158-syzkaller #0 [ 49.689600] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 49.698941] Call Trace: [ 49.701502] [ 49.703637] dump_stack+0x142/0x197 [ 49.707243] print_usage_bug.cold+0x330/0x42a [ 49.711723] ? save_stack_trace+0x16/0x20 [ 49.715851] mark_lock+0xdbd/0x1240 [ 49.719455] ? kvm_clock_read+0x23/0x40 [ 49.723407] ? check_usage_backwards+0x2f0/0x2f0 [ 49.728152] __lock_acquire+0xb57/0x4620 [ 49.732194] ? retint_kernel+0x2d/0x2d [ 49.736114] ? trace_hardirqs_on_caller+0x19b/0x590 [ 49.741117] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 49.745919] ? trace_hardirqs_on+0x10/0x10 [ 49.750270] ? arch_local_irq_restore+0x4e/0x56 [ 49.754934] ? dump_stack+0x18a/0x197 [ 49.758725] lock_acquire+0x16f/0x430 [ 49.762508] ? tpk_write+0x5d/0x2c0 [ 49.766114] ? tpk_write+0x5d/0x2c0 [ 49.769719] __mutex_lock+0xe8/0x1470 [ 49.773933] ? tpk_write+0x5d/0x2c0 [ 49.777538] ? tpk_write+0x5d/0x2c0 [ 49.781148] ? mutex_trylock+0x1c0/0x1c0 [ 49.785189] ? trace_hardirqs_on+0x10/0x10 [ 49.789400] ? debug_object_deactivate+0x1cc/0x350 [ 49.794306] ? find_held_lock+0x35/0x130 [ 49.799764] ? save_trace+0x290/0x290 [ 49.803567] mutex_lock_nested+0x16/0x20 [ 49.807608] ? mutex_lock_nested+0x16/0x20 [ 49.811835] tpk_write+0x5d/0x2c0 [ 49.815288] resync_tnc+0x1bc/0x3d0 [ 49.819160] call_timer_fn+0x161/0x670 [ 49.823042] ? sp_put+0x40/0x40 [ 49.826310] ? __next_timer_interrupt+0x140/0x140 [ 49.831138] ? trace_hardirqs_on_caller+0x19b/0x590 [ 49.836138] run_timer_softirq+0x5b7/0x1520 [ 49.840443] ? sp_put+0x40/0x40 [ 49.843710] ? add_timer+0xae0/0xae0 [ 49.847409] ? rcu_lockdep_current_cpu_online+0xf2/0x140 [ 49.852837] __do_softirq+0x244/0x9a0 [ 49.856614] ? sched_clock+0x2e/0x50 [ 49.860318] irq_exit+0x160/0x1b0 [ 49.863766] smp_apic_timer_interrupt+0x146/0x5e0 [ 49.868767] apic_timer_interrupt+0x96/0xa0 [ 49.873070] [ 49.875298] RIP: 0010:native_safe_halt+0xe/0x10 [ 49.879950] RSP: 0018:ffffffff87e07de8 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff10 [ 49.887636] RAX: 1ffffffff0fe2d2c RBX: ffffffff87e76240 RCX: 0000000000000000 [ 49.894989] RDX: dffffc0000000000 RSI: 0000000000000001 RDI: ffffffff87e76abc [ 49.902255] RBP: ffffffff87e07e10 R08: 1ffffffff1164501 R09: 0000000000000000 [ 49.909504] R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff87f16950 [ 49.916775] R13: 0000000000000000 R14: 0000000000000000 R15: ffffffff87e76240 [ 49.924048] ? default_idle+0x4c/0x370 [ 49.927930] arch_cpu_idle+0xa/0x10 [ 49.931536] default_idle_call+0x36/0x90 [ 49.935574] do_idle+0x262/0x3d0 [ 49.938927] cpu_startup_entry+0x1b/0x20 [ 49.942968] rest_init+0x1d9/0x1e2 [ 49.946493] ? trace_event_define_fields_x86_irq_vector+0x2c/0x2c executing program executing program executing program executing program executing program executing program executing program executing program [ 49.952710] start_kernel+0x6df/0x6fd [ 49.956489] ? mem_encrypt_init+0xb/0xb [ 49.960440] ? x86_family+0x32/0x40 [ 49.964046] ? load_ucode_bsp+0x1ea/0x1f6 [ 49.968346] x86_64_start_reservations+0x29/0x2b [ 49.973079] x86_64_start_kernel+0x77/0x7b [ 49.977292] secondary_startup_64+0xa5/0xb0 [ 49.989768] [U] `è executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 55.510043] BUG: sleeping function called from invalid context at kernel/locking/mutex.c:747 [ 55.518679] in_atomic(): 1, irqs_disabled(): 0, pid: 0, name: swapper/0 [ 55.525435] INFO: lockdep is turned off. [ 55.529480] Preemption disabled at: [ 55.529492] [] schedule_preempt_disabled+0x1d/0x20 [ 55.539605] CPU: 0 PID: 0 Comm: swapper/0 Tainted: G W 4.14.158-syzkaller #0 [ 55.547896] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 55.557276] Call Trace: [ 55.559845] [ 55.561980] dump_stack+0x142/0x197 [ 55.565593] ? schedule_preempt_disabled+0x1d/0x20 [ 55.570525] ___might_sleep.cold+0x1bd/0x1f6 [ 55.575049] __might_sleep+0x93/0xb0 [ 55.578751] ? tpk_write+0x5d/0x2c0 [ 55.582363] __mutex_lock+0xb9/0x1470 [ 55.586156] ? __update_load_avg_se.isra.0+0x3ba/0x530 [ 55.591416] ? tpk_write+0x5d/0x2c0 [ 55.595038] ? trace_hardirqs_on+0x10/0x10 [ 55.599263] ? mutex_trylock+0x1c0/0x1c0 [ 55.603306] ? trace_hardirqs_on+0x10/0x10 [ 55.607529] ? trace_hardirqs_on+0x10/0x10 [ 55.611741] ? __enqueue_entity+0x14f/0x230 [ 55.616039] ? account_entity_enqueue+0x30d/0x480 [ 55.620865] ? check_preemption_disabled+0x3c/0x250 [ 55.625870] ? trace_hardirqs_on+0x10/0x10 [ 55.630086] mutex_lock_nested+0x16/0x20 [ 55.634136] ? mutex_lock_nested+0x16/0x20 [ 55.638368] tpk_write+0x5d/0x2c0 [ 55.641805] ? lock_acquire+0x16f/0x430 [ 55.645766] ? call_timer_fn+0xc8/0x670 [ 55.649729] resync_tnc+0x1bc/0x3d0 [ 55.653344] call_timer_fn+0x161/0x670 [ 55.657230] ? sp_put+0x40/0x40 [ 55.660500] ? __next_timer_interrupt+0x140/0x140 [ 55.665331] ? lock_downgrade+0x740/0x740 [ 55.669470] run_timer_softirq+0x5b7/0x1520 [ 55.673788] ? sp_put+0x40/0x40 [ 55.677057] ? add_timer+0xae0/0xae0 [ 55.680747] ? sched_clock_cpu+0x1b/0x1c0 [ 55.684883] ? check_preemption_disabled+0x3c/0x250 [ 55.689878] __do_softirq+0x244/0x9a0 [ 55.693675] ? sched_clock+0x2e/0x50 [ 55.697374] irq_exit+0x160/0x1b0 [ 55.700810] smp_apic_timer_interrupt+0x146/0x5e0 [ 55.705646] apic_timer_interrupt+0x96/0xa0 [ 55.709953] [ 55.712169] RIP: 0010:native_safe_halt+0xe/0x10 [ 55.716809] RSP: 0018:ffffffff87e07de8 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff10 [ 55.724508] RAX: 1ffffffff0fe2d2c RBX: ffffffff87e76240 RCX: 1ffffffff1066d00 [ 55.731804] RDX: dffffc0000000000 RSI: ffffffff8703f880 RDI: ffffffff86651eba [ 55.739057] RBP: ffffffff87e07e10 R08: 1ffffffff1164501 R09: ffffffff81534195 [ 55.746326] R10: 0000000000000000 R11: ffffffff87e76240 R12: ffffffff87f16950 [ 55.753576] R13: 0000000000000000 R14: 0000000000000000 R15: ffffffff87e76240 [ 55.760837] ? tick_nohz_idle_enter+0x105/0x1b0 [ 55.765486] ? default_idle+0x1a/0x370 [ 55.769352] ? default_idle+0x4c/0x370 [ 55.773218] arch_cpu_idle+0xa/0x10 [ 55.776820] default_idle_call+0x36/0x90 [ 55.780867] do_idle+0x262/0x3d0 [ 55.784220] cpu_startup_entry+0x1b/0x20 [ 55.788257] rest_init+0x1d9/0x1e2 [ 55.791776] ? trace_event_define_fields_x86_irq_vector+0x2c/0x2c [ 55.797999] start_kernel+0x6df/0x6fd [ 55.801783] ? mem_encrypt_init+0xb/0xb [ 55.805743] ? x86_family+0x32/0x40 executing program executing program executing program executing program executing program executing program executing program executing program [ 55.809353] ? load_ucode_bsp+0x1ea/0x1f6 [ 55.813484] x86_64_start_reservations+0x29/0x2b [ 55.818220] x86_64_start_kernel+0x77/0x7b [ 55.822438] secondary_startup_64+0xa5/0xb0 [ 55.832373] [U] `è executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program