[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 61.651295][ T27] audit: type=1800 audit(1575733924.420:25): pid=8778 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 61.671292][ T27] audit: type=1800 audit(1575733924.420:26): pid=8778 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 61.724914][ T27] audit: type=1800 audit(1575733924.430:27): pid=8778 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.32' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 73.364311][ T8934] IPVS: ftp: loaded support on port[0] = 21 [ 73.404610][ T8934] sp0: Synchronizing with TNC [ 75.459314][ T3065] Bluetooth: hci0: command 0x1003 tx timeout [ 75.466003][ T8938] Bluetooth: hci0: sending frame failed (-49) [ 77.539264][ T2733] Bluetooth: hci0: command 0x1001 tx timeout [ 77.545415][ T8938] Bluetooth: hci0: sending frame failed (-49) [ 78.418972][ C1] BUG: sleeping function called from invalid context at kernel/locking/mutex.c:938 [ 78.428537][ C1] in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 0, name: swapper/1 [ 78.437231][ C1] 1 lock held by swapper/1/0: [ 78.441920][ C1] #0: ffffc90000da8d50 ((&sp->resync_t)){+.-.}, at: call_timer_fn+0xe0/0x780 [ 78.450788][ C1] Preemption disabled at: [ 78.450803][ C1] [] start_secondary+0xde/0x410 [ 78.461534][ C1] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 5.4.0-syzkaller #0 [ 78.469194][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 78.479248][ C1] Call Trace: [ 78.482527][ C1] [ 78.485370][ C1] dump_stack+0x197/0x210 [ 78.489682][ C1] ? start_secondary+0xde/0x410 [ 78.494514][ C1] ___might_sleep.cold+0x1fb/0x23e [ 78.499606][ C1] __might_sleep+0x95/0x190 [ 78.504090][ C1] __mutex_lock+0xc5/0x13c0 [ 78.508576][ C1] ? alloc_list_entry+0xc0/0xc0 [ 78.513421][ C1] ? tpk_write+0x5d/0x340 [ 78.517744][ C1] ? find_first_zero_bit+0x9a/0xc0 [ 78.522860][ C1] ? mutex_trylock+0x2f0/0x2f0 [ 78.527628][ C1] ? __lock_acquire+0x29c9/0x4a00 [ 78.532634][ C1] ? debug_object_deactivate+0x1d9/0x320 [ 78.538252][ C1] mutex_lock_nested+0x16/0x20 [ 78.542993][ C1] ? mutex_lock_nested+0x16/0x20 [ 78.547920][ C1] tpk_write+0x5d/0x340 [ 78.552070][ C1] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 78.557607][ C1] resync_tnc+0x1b6/0x320 [ 78.561918][ C1] call_timer_fn+0x1ac/0x780 [ 78.566660][ C1] ? encode_sixpack+0x790/0x790 [ 78.571497][ C1] ? msleep_interruptible+0x150/0x150 [ 78.576846][ C1] ? run_timer_softirq+0x6b1/0x1790 [ 78.582037][ C1] ? trace_hardirqs_on+0x67/0x240 [ 78.587036][ C1] ? encode_sixpack+0x790/0x790 [ 78.591866][ C1] ? encode_sixpack+0x790/0x790 [ 78.596785][ C1] run_timer_softirq+0x6c3/0x1790 [ 78.601793][ C1] ? add_timer+0x930/0x930 [ 78.606187][ C1] ? rcu_lockdep_current_cpu_online+0xe3/0x130 [ 78.612323][ C1] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 78.617970][ C1] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 78.623945][ C1] ? trace_hardirqs_on+0x67/0x240 [ 78.628981][ C1] __do_softirq+0x262/0x98c [ 78.633526][ C1] ? sched_clock_cpu+0x1b/0x1b0 [ 78.638417][ C1] irq_exit+0x19b/0x1e0 [ 78.642607][ C1] smp_apic_timer_interrupt+0x1a3/0x610 [ 78.648277][ C1] apic_timer_interrupt+0xf/0x20 [ 78.653193][ C1] [ 78.656121][ C1] RIP: 0010:native_safe_halt+0xe/0x10 [ 78.661488][ C1] Code: 98 81 eb f9 eb 8a cc cc cc cc cc cc e9 07 00 00 00 0f 00 2d 04 83 61 00 f4 c3 66 90 e9 07 00 00 00 0f 00 2d f4 82 61 00 fb f4 cc 55 48 89 e5 41 57 41 56 41 55 41 54 53 e8 ce 93 9b f9 e8 79 [ 78.681090][ C1] RSP: 0018:ffffc90000d3fd68 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13 [ 78.689494][ C1] RAX: 1ffffffff13266ae RBX: ffff8880a99fa340 RCX: 0000000000000000 [ 78.697460][ C1] RDX: dffffc0000000000 RSI: 0000000000000006 RDI: ffff8880a99fabd4 [ 78.705424][ C1] RBP: ffffc90000d3fd98 R08: ffff8880a99fa340 R09: 0000000000000000 [ 78.713374][ C1] R10: 0000000000000000 R11: 0000000000000000 R12: dffffc0000000000 [ 78.721325][ C1] R13: ffffffff8a790e80 R14: 0000000000000000 R15: 0000000000000001 [ 78.729307][ C1] ? default_idle+0x4e/0x360 [ 78.733880][ C1] arch_cpu_idle+0xa/0x10 [ 78.738190][ C1] default_idle_call+0x84/0xb0 [ 78.742945][ C1] do_idle+0x3c8/0x6e0 [ 78.746994][ C1] ? arch_cpu_idle_exit+0x80/0x80 [ 78.751995][ C1] ? _raw_spin_unlock_irqrestore+0x9f/0xe0 [ 78.757778][ C1] ? complete+0x61/0x80 [ 78.761930][ C1] cpu_startup_entry+0x1b/0x20 [ 78.766671][ C1] start_secondary+0x2f4/0x410 [ 78.771416][ C1] ? set_cpu_sibling_map+0x2140/0x2140 [ 78.776859][ C1] secondary_startup_64+0xa4/0xb0 [ 78.781906][ C1] [ 78.784233][ C1] ================================ [ 78.789325][ C1] WARNING: inconsistent lock state [ 78.794410][ C1] 5.4.0-syzkaller #0 Tainted: G W [ 78.800713][ C1] -------------------------------- [ 78.805900][ C1] inconsistent {SOFTIRQ-ON-W} -> {IN-SOFTIRQ-W} usage. [ 78.812728][ C1] swapper/1/0 [HC0[0]:SC1[1]:HE1:SE0] takes: [ 78.818683][ C1] ffffffff8c110ab0 (&tpk_port.port_write_mutex){+.?.}, at: tpk_write+0x5d/0x340 [ 78.827693][ C1] {SOFTIRQ-ON-W} state was registered at: [ 78.833390][ C1] lock_acquire+0x190/0x410 [ 78.837958][ C1] __mutex_lock+0x156/0x13c0 [ 78.842609][ C1] mutex_lock_nested+0x16/0x20 [ 78.847447][ C1] tpk_write+0x5d/0x340 [ 78.851678][ C1] sixpack_open+0x8d6/0xaaf [ 78.856265][ C1] tty_ldisc_open.isra.0+0xa3/0x110 [ 78.861534][ C1] tty_set_ldisc+0x30e/0x6b0 [ 78.866185][ C1] tty_ioctl+0xe8d/0x14f0 [ 78.870587][ C1] do_vfs_ioctl+0x977/0x14e0 [ 78.875234][ C1] ksys_ioctl+0xab/0xd0 [ 78.879446][ C1] __x64_sys_ioctl+0x73/0xb0 [ 78.884099][ C1] do_syscall_64+0xfa/0x790 [ 78.888665][ C1] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 78.894618][ C1] irq event stamp: 195718 [ 78.898939][ C1] hardirqs last enabled at (195718): [] trace_hardirqs_on_thunk+0x1a/0x1c [ 78.909670][ C1] hardirqs last disabled at (195717): [] trace_hardirqs_off_thunk+0x1a/0x1c [ 78.919878][ C1] softirqs last enabled at (195642): [] _local_bh_enable+0x1c/0x30 [ 78.929400][ C1] softirqs last disabled at (195643): [] irq_exit+0x19b/0x1e0 [ 78.938471][ C1] [ 78.938471][ C1] other info that might help us debug this: [ 78.946514][ C1] Possible unsafe locking scenario: [ 78.946514][ C1] [ 78.953936][ C1] CPU0 [ 78.957192][ C1] ---- [ 78.960446][ C1] lock(&tpk_port.port_write_mutex); [ 78.965790][ C1] [ 78.969222][ C1] lock(&tpk_port.port_write_mutex); [ 78.974736][ C1] [ 78.974736][ C1] *** DEADLOCK *** [ 78.974736][ C1] [ 78.982855][ C1] 1 lock held by swapper/1/0: [ 78.987497][ C1] #0: ffffc90000da8d50 ((&sp->resync_t)){+.-.}, at: call_timer_fn+0xe0/0x780 [ 78.996323][ C1] [ 78.996323][ C1] stack backtrace: [ 79.002190][ C1] CPU: 1 PID: 0 Comm: swapper/1 Tainted: G W 5.4.0-syzkaller #0 [ 79.011091][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 79.021118][ C1] Call Trace: [ 79.024374][ C1] [ 79.027204][ C1] dump_stack+0x197/0x210 [ 79.031522][ C1] print_usage_bug.cold+0x327/0x378 [ 79.036706][ C1] mark_lock+0xbb4/0x1220 [ 79.041023][ C1] ? check_usage_backwards+0x330/0x330 [ 79.046455][ C1] __lock_acquire+0x1e8e/0x4a00 [ 79.051286][ C1] ? retint_kernel+0x2b/0x2b [ 79.055853][ C1] ? mark_held_locks+0xf0/0xf0 [ 79.060594][ C1] lock_acquire+0x190/0x410 [ 79.065074][ C1] ? tpk_write+0x5d/0x340 [ 79.069384][ C1] __mutex_lock+0x156/0x13c0 [ 79.073945][ C1] ? tpk_write+0x5d/0x340 [ 79.078264][ C1] ? alloc_list_entry+0xc0/0xc0 [ 79.083099][ C1] ? tpk_write+0x5d/0x340 [ 79.087415][ C1] ? find_first_zero_bit+0x9a/0xc0 [ 79.092499][ C1] ? mutex_trylock+0x2f0/0x2f0 [ 79.097248][ C1] ? __lock_acquire+0x29c9/0x4a00 [ 79.102518][ C1] ? debug_object_deactivate+0x1d9/0x320 [ 79.108129][ C1] mutex_lock_nested+0x16/0x20 [ 79.112868][ C1] ? mutex_lock_nested+0x16/0x20 [ 79.117779][ C1] tpk_write+0x5d/0x340 [ 79.121908][ C1] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 79.127430][ C1] resync_tnc+0x1b6/0x320 [ 79.131750][ C1] call_timer_fn+0x1ac/0x780 [ 79.136311][ C1] ? encode_sixpack+0x790/0x790 [ 79.141149][ C1] ? msleep_interruptible+0x150/0x150 [ 79.146494][ C1] ? run_timer_softirq+0x6b1/0x1790 [ 79.151679][ C1] ? trace_hardirqs_on+0x67/0x240 [ 79.156677][ C1] ? encode_sixpack+0x790/0x790 [ 79.161501][ C1] ? encode_sixpack+0x790/0x790 [ 79.166360][ C1] run_timer_softirq+0x6c3/0x1790 [ 79.171390][ C1] ? add_timer+0x930/0x930 [ 79.175796][ C1] ? rcu_lockdep_current_cpu_online+0xe3/0x130 [ 79.181945][ C1] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 79.187466][ C1] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 79.193426][ C1] ? trace_hardirqs_on+0x67/0x240 [ 79.198454][ C1] __do_softirq+0x262/0x98c [ 79.202988][ C1] ? sched_clock_cpu+0x1b/0x1b0 [ 79.207831][ C1] irq_exit+0x19b/0x1e0 [ 79.211967][ C1] smp_apic_timer_interrupt+0x1a3/0x610 [ 79.217487][ C1] apic_timer_interrupt+0xf/0x20 [ 79.222397][ C1] [ 79.225315][ C1] RIP: 0010:native_safe_halt+0xe/0x10 [ 79.230662][ C1] Code: 98 81 eb f9 eb 8a cc cc cc cc cc cc e9 07 00 00 00 0f 00 2d 04 83 61 00 f4 c3 66 90 e9 07 00 00 00 0f 00 2d f4 82 61 00 fb f4 cc 55 48 89 e5 41 57 41 56 41 55 41 54 53 e8 ce 93 9b f9 e8 79 [ 79.250253][ C1] RSP: 0018:ffffc90000d3fd68 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13 [ 79.258635][ C1] RAX: 1ffffffff13266ae RBX: ffff8880a99fa340 RCX: 0000000000000000 [ 79.266581][ C1] RDX: dffffc0000000000 RSI: 0000000000000006 RDI: ffff8880a99fabd4 [ 79.274526][ C1] RBP: ffffc90000d3fd98 R08: ffff8880a99fa340 R09: 0000000000000000 [ 79.282469][ C1] R10: 0000000000000000 R11: 0000000000000000 R12: dffffc0000000000 [ 79.290414][ C1] R13: ffffffff8a790e80 R14: 0000000000000000 R15: 0000000000000001 [ 79.298366][ C1] ? default_idle+0x4e/0x360 [ 79.302931][ C1] arch_cpu_idle+0xa/0x10 [ 79.307239][ C1] default_idle_call+0x84/0xb0 [ 79.311977][ C1] do_idle+0x3c8/0x6e0 [ 79.316017][ C1] ? arch_cpu_idle_exit+0x80/0x80 [ 79.321020][ C1] ? _raw_spin_unlock_irqrestore+0x9f/0xe0 [ 79.326807][ C1] ? complete+0x61/0x80 [ 79.330935][ C1] cpu_startup_entry+0x1b/0x20 [ 79.335669][ C1] start_secondary+0x2f4/0x410 [ 79.340404][ C1] ? set_cpu_sibling_map+0x2140/0x2140 [ 79.345835][ C1] secondary_startup_64+0xa4/0xb0 [ 79.350920][ C1] ------------[ cut here ]------------ [ 79.356377][ C1] WARNING: CPU: 1 PID: 0 at kernel/locking/mutex.c:737 mutex_unlock+0x1d/0x30 [ 79.365191][ C1] Kernel panic - not syncing: panic_on_warn set ... [ 79.371756][ C1] CPU: 1 PID: 0 Comm: swapper/1 Tainted: G W 5.4.0-syzkaller #0 [ 79.380658][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 79.390684][ C1] Call Trace: [ 79.393947][ C1] [ 79.396780][ C1] dump_stack+0x197/0x210 [ 79.401096][ C1] ? __mutex_unlock_slowpath+0x5e0/0x6a0 [ 79.406700][ C1] panic+0x2e3/0x75c [ 79.410577][ C1] ? add_taint.cold+0x16/0x16 [ 79.415230][ C1] ? printk+0xba/0xed [ 79.419186][ C1] ? kmsg_dump_rewind_nolock+0xe4/0xe4 [ 79.424619][ C1] ? __warn.cold+0x14/0x3e [ 79.429009][ C1] ? __warn+0xd9/0x1cf [ 79.433058][ C1] ? mutex_unlock+0x1d/0x30 [ 79.437534][ C1] __warn.cold+0x2f/0x3e [ 79.441748][ C1] ? report_bug.cold+0x63/0xb2 [ 79.446484][ C1] ? mutex_unlock+0x1d/0x30 [ 79.450964][ C1] report_bug+0x289/0x300 [ 79.455269][ C1] do_error_trap+0x11b/0x200 [ 79.459834][ C1] do_invalid_op+0x37/0x50 [ 79.464252][ C1] ? mutex_unlock+0x1d/0x30 [ 79.468747][ C1] invalid_op+0x23/0x30 [ 79.472940][ C1] RIP: 0010:mutex_unlock+0x1d/0x30 [ 79.478041][ C1] Code: 4c 89 ff e8 05 4f ec f9 e9 8c fb ff ff 55 65 8b 05 c0 f7 3b 78 a9 00 ff 1f 00 48 89 e5 75 0b 48 8b 75 08 e8 45 f9 ff ff 5d c3 <0f> 0b 48 8b 75 08 e8 38 f9 ff ff 5d c3 66 0f 1f 44 00 00 48 b8 00 [ 79.497665][ C1] RSP: 0018:ffffc90000da8c68 EFLAGS: 00010206 [ 79.503711][ C1] RAX: 0000000000000101 RBX: 0000000000000001 RCX: ffffffff83e8d9df [ 79.511659][ C1] RDX: 0000000000000100 RSI: ffffffff83e8d9ed RDI: ffffffff8c110a50 [ 79.519619][ C1] RBP: ffffc90000da8c68 R08: ffff8880a99fa340 R09: fffffbfff182214b [ 79.527575][ C1] R10: ffffc90000da8c68 R11: ffffffff8c110a57 R12: 0000000000000001 [ 79.535524][ C1] R13: 0000000000000001 R14: 0000000000000060 R15: dffffc0000000000 [ 79.543490][ C1] ? tpk_write+0x28f/0x340 [ 79.547881][ C1] ? tpk_write+0x29d/0x340 [ 79.552284][ C1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 79.557977][ C1] tpk_write+0x2a6/0x340 [ 79.562197][ C1] resync_tnc+0x1b6/0x320 [ 79.566503][ C1] call_timer_fn+0x1ac/0x780 [ 79.571065][ C1] ? encode_sixpack+0x790/0x790 [ 79.575889][ C1] ? msleep_interruptible+0x150/0x150 [ 79.581251][ C1] ? run_timer_softirq+0x6b1/0x1790 [ 79.586442][ C1] ? trace_hardirqs_on+0x67/0x240 [ 79.591440][ C1] ? encode_sixpack+0x790/0x790 [ 79.596262][ C1] ? encode_sixpack+0x790/0x790 [ 79.601085][ C1] run_timer_softirq+0x6c3/0x1790 [ 79.606093][ C1] ? add_timer+0x930/0x930 [ 79.610485][ C1] ? rcu_lockdep_current_cpu_online+0xe3/0x130 [ 79.616617][ C1] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 79.622146][ C1] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 79.628101][ C1] ? trace_hardirqs_on+0x67/0x240 [ 79.633126][ C1] __do_softirq+0x262/0x98c [ 79.637624][ C1] ? sched_clock_cpu+0x1b/0x1b0 [ 79.642574][ C1] irq_exit+0x19b/0x1e0 [ 79.646713][ C1] smp_apic_timer_interrupt+0x1a3/0x610 [ 79.652240][ C1] apic_timer_interrupt+0xf/0x20 [ 79.657157][ C1] [ 79.660084][ C1] RIP: 0010:native_safe_halt+0xe/0x10 [ 79.665432][ C1] Code: 98 81 eb f9 eb 8a cc cc cc cc cc cc e9 07 00 00 00 0f 00 2d 04 83 61 00 f4 c3 66 90 e9 07 00 00 00 0f 00 2d f4 82 61 00 fb f4 cc 55 48 89 e5 41 57 41 56 41 55 41 54 53 e8 ce 93 9b f9 e8 79 [ 79.685013][ C1] RSP: 0018:ffffc90000d3fd68 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13 [ 79.693402][ C1] RAX: 1ffffffff13266ae RBX: ffff8880a99fa340 RCX: 0000000000000000 [ 79.701350][ C1] RDX: dffffc0000000000 RSI: 0000000000000006 RDI: ffff8880a99fabd4 [ 79.709305][ C1] RBP: ffffc90000d3fd98 R08: ffff8880a99fa340 R09: 0000000000000000 [ 79.717251][ C1] R10: 0000000000000000 R11: 0000000000000000 R12: dffffc0000000000 [ 79.725199][ C1] R13: ffffffff8a790e80 R14: 0000000000000000 R15: 0000000000000001 [ 79.733160][ C1] ? default_idle+0x4e/0x360 [ 79.737726][ C1] arch_cpu_idle+0xa/0x10 [ 79.742029][ C1] default_idle_call+0x84/0xb0 [ 79.747982][ C1] do_idle+0x3c8/0x6e0 [ 79.752051][ C1] ? arch_cpu_idle_exit+0x80/0x80 [ 79.757052][ C1] ? _raw_spin_unlock_irqrestore+0x9f/0xe0 [ 79.762836][ C1] ? complete+0x61/0x80 [ 79.766967][ C1] cpu_startup_entry+0x1b/0x20 [ 79.771712][ C1] start_secondary+0x2f4/0x410 [ 79.776449][ C1] ? set_cpu_sibling_map+0x2140/0x2140 [ 79.781885][ C1] secondary_startup_64+0xa4/0xb0 [ 79.786939][ C1] ------------[ cut here ]------------ [ 79.792377][ C1] WARNING: CPU: 1 PID: 0 at kernel/locking/mutex.c:1419 mutex_trylock+0x279/0x2f0 [ 79.801533][ C1] Modules linked in: [ 79.805410][ C1] CPU: 1 PID: 0 Comm: swapper/1 Tainted: G W 5.4.0-syzkaller #0 [ 79.814311][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 79.824366][ C1] RIP: 0010:mutex_trylock+0x279/0x2f0 [ 79.829712][ C1] Code: c9 41 b8 01 00 00 00 31 c9 ba 01 00 00 00 31 f6 e8 bc aa 94 f9 58 48 8d 65 d8 b8 01 00 00 00 5b 41 5c 41 5d 41 5e 41 5f 5d c3 <0f> 0b e9 0c fe ff ff 48 c7 c7 e0 24 63 8b 48 89 4d d0 e8 b0 43 ec [ 79.849614][ C1] RSP: 0018:ffffc90000da8828 EFLAGS: 00010006 [ 79.855665][ C1] RAX: 0000000000000102 RBX: 1ffff920001b510d RCX: 0000000000000004 [ 79.863616][ C1] RDX: 0000000000000100 RSI: ffffffff816bec05 RDI: ffffffff899c2820 [ 79.871565][ C1] RBP: ffffc90000da8858 R08: 0000000000000001 R09: fffffbfff1333859 [ 79.879511][ C1] R10: fffffbfff1333858 R11: ffffffff8999c2c3 R12: ffffffff8b6324e0 [ 79.887474][ C1] R13: 0000000000000000 R14: ffffffff87c62600 R15: ffffffff899c2820 [ 79.895659][ C1] FS: 0000000000000000(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 79.904568][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 79.911126][ C1] CR2: 00007f4744dda1b0 CR3: 0000000098228000 CR4: 00000000001406e0 [ 79.919092][ C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 79.927044][ C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 79.934992][ C1] Call Trace: [ 79.938255][ C1] [ 79.941105][ C1] ? __mutex_unlock_slowpath+0x5e0/0x6a0 [ 79.946712][ C1] __crash_kexec+0x91/0x200 [ 79.951191][ C1] ? kexec_crash_loaded+0x20/0x20 [ 79.956209][ C1] ? trace_hardirqs_off+0x62/0x240 [ 79.961311][ C1] ? _raw_spin_unlock_irqrestore+0x9f/0xe0 [ 79.967094][ C1] ? __printk_safe_flush+0x31e/0x3a0 [ 79.972369][ C1] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 79.978063][ C1] ? find_next_bit+0x107/0x130 [ 79.982802][ C1] ? cpumask_next+0x41/0x50 [ 79.987281][ C1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 79.994623][ C1] ? printk_safe_flush+0xf2/0x140 [ 79.999622][ C1] ? __mutex_unlock_slowpath+0x5e0/0x6a0 [ 80.005246][ C1] panic+0x308/0x75c [ 80.009115][ C1] ? add_taint.cold+0x16/0x16 [ 80.013779][ C1] ? printk+0xba/0xed [ 80.017733][ C1] ? kmsg_dump_rewind_nolock+0xe4/0xe4 [ 80.023165][ C1] ? __warn.cold+0x14/0x3e [ 80.027559][ C1] ? __warn+0xd9/0x1cf [ 80.031604][ C1] ? mutex_unlock+0x1d/0x30 [ 80.036088][ C1] __warn.cold+0x2f/0x3e [ 80.040302][ C1] ? report_bug.cold+0x63/0xb2 [ 80.045053][ C1] ? mutex_unlock+0x1d/0x30 [ 80.049541][ C1] report_bug+0x289/0x300 [ 80.053851][ C1] do_error_trap+0x11b/0x200 [ 80.058413][ C1] do_invalid_op+0x37/0x50 [ 80.062810][ C1] ? mutex_unlock+0x1d/0x30 [ 80.067294][ C1] invalid_op+0x23/0x30 [ 80.071425][ C1] RIP: 0010:mutex_unlock+0x1d/0x30 [ 80.076512][ C1] Code: 4c 89 ff e8 05 4f ec f9 e9 8c fb ff ff 55 65 8b 05 c0 f7 3b 78 a9 00 ff 1f 00 48 89 e5 75 0b 48 8b 75 08 e8 45 f9 ff ff 5d c3 <0f> 0b 48 8b 75 08 e8 38 f9 ff ff 5d c3 66 0f 1f 44 00 00 48 b8 00 [ 80.096572][ C1] RSP: 0018:ffffc90000da8c68 EFLAGS: 00010206 [ 80.102611][ C1] RAX: 0000000000000101 RBX: 0000000000000001 RCX: ffffffff83e8d9df [ 80.110556][ C1] RDX: 0000000000000100 RSI: ffffffff83e8d9ed RDI: ffffffff8c110a50 [ 80.118500][ C1] RBP: ffffc90000da8c68 R08: ffff8880a99fa340 R09: fffffbfff182214b [ 80.126445][ C1] R10: ffffc90000da8c68 R11: ffffffff8c110a57 R12: 0000000000000001 [ 80.134389][ C1] R13: 0000000000000001 R14: 0000000000000060 R15: dffffc0000000000 [ 80.142343][ C1] ? tpk_write+0x28f/0x340 [ 80.146730][ C1] ? tpk_write+0x29d/0x340 [ 80.151128][ C1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 80.156820][ C1] tpk_write+0x2a6/0x340 [ 80.161049][ C1] resync_tnc+0x1b6/0x320 [ 80.165355][ C1] call_timer_fn+0x1ac/0x780 [ 80.169920][ C1] ? encode_sixpack+0x790/0x790 [ 80.174744][ C1] ? msleep_interruptible+0x150/0x150 [ 80.180098][ C1] ? run_timer_softirq+0x6b1/0x1790 [ 80.185269][ C1] ? trace_hardirqs_on+0x67/0x240 [ 80.190266][ C1] ? encode_sixpack+0x790/0x790 [ 80.195097][ C1] ? encode_sixpack+0x790/0x790 [ 80.199922][ C1] run_timer_softirq+0x6c3/0x1790 [ 80.204922][ C1] ? add_timer+0x930/0x930 [ 80.209311][ C1] ? rcu_lockdep_current_cpu_online+0xe3/0x130 [ 80.215438][ C1] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 80.220956][ C1] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 80.226927][ C1] ? trace_hardirqs_on+0x67/0x240 [ 80.231947][ C1] __do_softirq+0x262/0x98c [ 80.236440][ C1] ? sched_clock_cpu+0x1b/0x1b0 [ 80.241274][ C1] irq_exit+0x19b/0x1e0 [ 80.245431][ C1] smp_apic_timer_interrupt+0x1a3/0x610 [ 80.250979][ C1] apic_timer_interrupt+0xf/0x20 [ 80.255894][ C1] [ 80.258815][ C1] RIP: 0010:native_safe_halt+0xe/0x10 [ 80.264163][ C1] Code: 98 81 eb f9 eb 8a cc cc cc cc cc cc e9 07 00 00 00 0f 00 2d 04 83 61 00 f4 c3 66 90 e9 07 00 00 00 0f 00 2d f4 82 61 00 fb f4 cc 55 48 89 e5 41 57 41 56 41 55 41 54 53 e8 ce 93 9b f9 e8 79 [ 80.283749][ C1] RSP: 0018:ffffc90000d3fd68 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13 [ 80.292182][ C1] RAX: 1ffffffff13266ae RBX: ffff8880a99fa340 RCX: 0000000000000000 [ 80.300149][ C1] RDX: dffffc0000000000 RSI: 0000000000000006 RDI: ffff8880a99fabd4 [ 80.308163][ C1] RBP: ffffc90000d3fd98 R08: ffff8880a99fa340 R09: 0000000000000000 [ 80.316133][ C1] R10: 0000000000000000 R11: 0000000000000000 R12: dffffc0000000000 [ 80.324078][ C1] R13: ffffffff8a790e80 R14: 0000000000000000 R15: 0000000000000001 [ 80.332043][ C1] ? default_idle+0x4e/0x360 [ 80.336621][ C1] arch_cpu_idle+0xa/0x10 [ 80.340925][ C1] default_idle_call+0x84/0xb0 [ 80.345660][ C1] do_idle+0x3c8/0x6e0 [ 80.349703][ C1] ? arch_cpu_idle_exit+0x80/0x80 [ 80.354708][ C1] ? _raw_spin_unlock_irqrestore+0x9f/0xe0 [ 80.360485][ C1] ? complete+0x61/0x80 [ 80.364612][ C1] cpu_startup_entry+0x1b/0x20 [ 80.369348][ C1] start_secondary+0x2f4/0x410 [ 80.374082][ C1] ? set_cpu_sibling_map+0x2140/0x2140 [ 80.379518][ C1] secondary_startup_64+0xa4/0xb0 [ 80.384526][ C1] irq event stamp: 195718 [ 80.388831][ C1] hardirqs last enabled at (195718): [] trace_hardirqs_on_thunk+0x1a/0x1c [ 80.398959][ C1] hardirqs last disabled at (195717): [] trace_hardirqs_off_thunk+0x1a/0x1c [ 80.409166][ C1] softirqs last enabled at (195642): [] _local_bh_enable+0x1c/0x30 [ 80.418683][ C1] softirqs last disabled at (195643): [] irq_exit+0x19b/0x1e0 [ 80.427670][ C1] ---[ end trace 4ee3d3c36d4ac4ac ]--- [ 80.433319][ C1] ------------[ cut here ]------------ [ 80.438759][ C1] WARNING: CPU: 1 PID: 0 at kernel/locking/mutex.c:737 mutex_unlock+0x1d/0x30 [ 80.447583][ C1] Modules linked in: [ 80.451455][ C1] CPU: 1 PID: 0 Comm: swapper/1 Tainted: G W 5.4.0-syzkaller #0 [ 80.460356][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 80.470406][ C1] RIP: 0010:mutex_unlock+0x1d/0x30 [ 80.475505][ C1] Code: 4c 89 ff e8 05 4f ec f9 e9 8c fb ff ff 55 65 8b 05 c0 f7 3b 78 a9 00 ff 1f 00 48 89 e5 75 0b 48 8b 75 08 e8 45 f9 ff ff 5d c3 <0f> 0b 48 8b 75 08 e8 38 f9 ff ff 5d c3 66 0f 1f 44 00 00 48 b8 00 [ 80.495133][ C1] RSP: 0018:ffffc90000da8858 EFLAGS: 00010006 [ 80.501191][ C1] RAX: 0000000000000102 RBX: 1ffff920001b510d RCX: ffffffff816bec1d [ 80.509139][ C1] RDX: 0000000000000100 RSI: ffffffff816bec7f RDI: ffffffff899c2820 [ 80.517095][ C1] RBP: ffffc90000da8858 R08: ffff8880a99fa340 R09: 0000000000000000 [ 80.525051][ C1] R10: fffffbfff14f21d0 R11: ffff8880a99fa340 R12: 0000000000000001 [ 80.533014][ C1] R13: 0000000000000000 R14: ffffffff87c62600 R15: 00000000000002e1 [ 80.540990][ C1] FS: 0000000000000000(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 80.549894][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 80.556453][ C1] CR2: 00007f4744dda1b0 CR3: 0000000098228000 CR4: 00000000001406e0 [ 80.564402][ C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 80.572437][ C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 80.580392][ C1] Call Trace: [ 80.583652][ C1] [ 80.586497][ C1] __crash_kexec+0x10b/0x200 [ 80.591081][ C1] ? kexec_crash_loaded+0x20/0x20 [ 80.596095][ C1] ? trace_hardirqs_off+0x62/0x240 [ 80.601183][ C1] ? _raw_spin_unlock_irqrestore+0x9f/0xe0 [ 80.606968][ C1] ? __printk_safe_flush+0x31e/0x3a0 [ 80.612231][ C1] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 80.617930][ C1] ? find_next_bit+0x107/0x130 [ 80.622670][ C1] ? cpumask_next+0x41/0x50 [ 80.627154][ C1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 80.632849][ C1] ? printk_safe_flush+0xf2/0x140 [ 80.637848][ C1] ? __mutex_unlock_slowpath+0x5e0/0x6a0 [ 80.643476][ C1] panic+0x308/0x75c [ 80.647348][ C1] ? add_taint.cold+0x16/0x16 [ 80.652010][ C1] ? printk+0xba/0xed [ 80.655966][ C1] ? kmsg_dump_rewind_nolock+0xe4/0xe4 [ 80.661407][ C1] ? __warn.cold+0x14/0x3e [ 80.665795][ C1] ? __warn+0xd9/0x1cf [ 80.669841][ C1] ? mutex_unlock+0x1d/0x30 [ 80.674315][ C1] __warn.cold+0x2f/0x3e [ 80.678530][ C1] ? report_bug.cold+0x63/0xb2 [ 80.683271][ C1] ? mutex_unlock+0x1d/0x30 [ 80.687760][ C1] report_bug+0x289/0x300 [ 80.692073][ C1] do_error_trap+0x11b/0x200 [ 80.696643][ C1] do_invalid_op+0x37/0x50 [ 80.701054][ C1] ? mutex_unlock+0x1d/0x30 [ 80.705549][ C1] invalid_op+0x23/0x30 [ 80.709681][ C1] RIP: 0010:mutex_unlock+0x1d/0x30 [ 80.714766][ C1] Code: 4c 89 ff e8 05 4f ec f9 e9 8c fb ff ff 55 65 8b 05 c0 f7 3b 78 a9 00 ff 1f 00 48 89 e5 75 0b 48 8b 75 08 e8 45 f9 ff ff 5d c3 <0f> 0b 48 8b 75 08 e8 38 f9 ff ff 5d c3 66 0f 1f 44 00 00 48 b8 00 [ 80.734352][ C1] RSP: 0018:ffffc90000da8c68 EFLAGS: 00010206 [ 80.740391][ C1] RAX: 0000000000000101 RBX: 0000000000000001 RCX: ffffffff83e8d9df [ 80.748335][ C1] RDX: 0000000000000100 RSI: ffffffff83e8d9ed RDI: ffffffff8c110a50 [ 80.756282][ C1] RBP: ffffc90000da8c68 R08: ffff8880a99fa340 R09: fffffbfff182214b [ 80.764240][ C1] R10: ffffc90000da8c68 R11: ffffffff8c110a57 R12: 0000000000000001 [ 80.772197][ C1] R13: 0000000000000001 R14: 0000000000000060 R15: dffffc0000000000 [ 80.780153][ C1] ? tpk_write+0x28f/0x340 [ 80.784541][ C1] ? tpk_write+0x29d/0x340 [ 80.788937][ C1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 80.794629][ C1] tpk_write+0x2a6/0x340 [ 80.798852][ C1] resync_tnc+0x1b6/0x320 [ 80.803221][ C1] call_timer_fn+0x1ac/0x780 [ 80.807950][ C1] ? encode_sixpack+0x790/0x790 [ 80.812830][ C1] ? msleep_interruptible+0x150/0x150 [ 80.818191][ C1] ? run_timer_softirq+0x6b1/0x1790 [ 80.823369][ C1] ? trace_hardirqs_on+0x67/0x240 [ 80.828372][ C1] ? encode_sixpack+0x790/0x790 [ 80.833257][ C1] ? encode_sixpack+0x790/0x790 [ 80.838089][ C1] run_timer_softirq+0x6c3/0x1790 [ 80.843094][ C1] ? add_timer+0x930/0x930 [ 80.847488][ C1] ? rcu_lockdep_current_cpu_online+0xe3/0x130 [ 80.853691][ C1] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 80.859221][ C1] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 80.865178][ C1] ? trace_hardirqs_on+0x67/0x240 [ 80.870181][ C1] __do_softirq+0x262/0x98c [ 80.874662][ C1] ? sched_clock_cpu+0x1b/0x1b0 [ 80.879490][ C1] irq_exit+0x19b/0x1e0 [ 80.883623][ C1] smp_apic_timer_interrupt+0x1a3/0x610 [ 80.889143][ C1] apic_timer_interrupt+0xf/0x20 [ 80.894048][ C1] [ 80.897070][ C1] RIP: 0010:native_safe_halt+0xe/0x10 [ 80.902419][ C1] Code: 98 81 eb f9 eb 8a cc cc cc cc cc cc e9 07 00 00 00 0f 00 2d 04 83 61 00 f4 c3 66 90 e9 07 00 00 00 0f 00 2d f4 82 61 00 fb f4 cc 55 48 89 e5 41 57 41 56 41 55 41 54 53 e8 ce 93 9b f9 e8 79 [ 80.922035][ C1] RSP: 0018:ffffc90000d3fd68 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13 [ 80.930417][ C1] RAX: 1ffffffff13266ae RBX: ffff8880a99fa340 RCX: 0000000000000000 [ 80.938402][ C1] RDX: dffffc0000000000 RSI: 0000000000000006 RDI: ffff8880a99fabd4 [ 80.946355][ C1] RBP: ffffc90000d3fd98 R08: ffff8880a99fa340 R09: 0000000000000000 [ 80.954301][ C1] R10: 0000000000000000 R11: 0000000000000000 R12: dffffc0000000000 [ 80.962246][ C1] R13: ffffffff8a790e80 R14: 0000000000000000 R15: 0000000000000001 [ 80.970204][ C1] ? default_idle+0x4e/0x360 [ 80.974769][ C1] arch_cpu_idle+0xa/0x10 [ 80.979071][ C1] default_idle_call+0x84/0xb0 [ 80.983815][ C1] do_idle+0x3c8/0x6e0 [ 80.987857][ C1] ? arch_cpu_idle_exit+0x80/0x80 [ 80.992853][ C1] ? _raw_spin_unlock_irqrestore+0x9f/0xe0 [ 80.998633][ C1] ? complete+0x61/0x80 [ 81.002763][ C1] cpu_startup_entry+0x1b/0x20 [ 81.007499][ C1] start_secondary+0x2f4/0x410 [ 81.012237][ C1] ? set_cpu_sibling_map+0x2140/0x2140 [ 81.017672][ C1] secondary_startup_64+0xa4/0xb0 [ 81.022668][ C1] irq event stamp: 195718 [ 81.026979][ C1] hardirqs last enabled at (195718): [] trace_hardirqs_on_thunk+0x1a/0x1c [ 81.037102][ C1] hardirqs last disabled at (195717): [] trace_hardirqs_off_thunk+0x1a/0x1c [ 81.047309][ C1] softirqs last enabled at (195642): [] _local_bh_enable+0x1c/0x30 [ 81.056842][ C1] softirqs last disabled at (195643): [] irq_exit+0x19b/0x1e0 [ 81.065837][ C1] ---[ end trace 4ee3d3c36d4ac4ad ]--- [ 81.072655][ C1] Kernel Offset: disabled [ 81.077026][ C1] Rebooting in 86400 seconds..