[ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... [ OK ] Started Update UTMP about System Runlevel Changes. Starting Load/Save RF Kill Switch Status... [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.99' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program syzkaller login: [ 151.304164] L1TF CPU bug present and SMT on, data leak possible. See CVE-2018-3646 and https://www.kernel.org/doc/html/latest/admin-guide/hw-vuln/l1tf.html for details. [ 151.345343] hrtimer: interrupt took 32690 ns executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing 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executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing 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executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing 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executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 226.223143] ================================================================== [ 226.230645] BUG: KASAN: stack-out-of-bounds in unwind_next_frame+0x146f/0x17d0 [ 226.237991] Read of size 8 at addr ffff8880a9967de0 by task syz-executor574/21129 [ 226.245611] [ 226.247229] CPU: 1 PID: 21129 Comm: syz-executor574 Not tainted 4.14.260-syzkaller #0 [ 226.255172] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 226.264500] Call Trace: [ 226.267059] [ 226.269197] dump_stack+0x1b2/0x281 [ 226.272804] print_address_description.cold+0x54/0x1d3 [ 226.278058] kasan_report_error.cold+0x8a/0x191 [ 226.282878] ? unwind_next_frame+0x146f/0x17d0 [ 226.287439] __asan_report_load8_noabort+0x68/0x70 [ 226.292349] ? unwind_next_frame+0x146f/0x17d0 [ 226.296997] unwind_next_frame+0x146f/0x17d0 [ 226.301383] ? retint_kernel+0x2d/0x2d [ 226.305248] ? deref_stack_reg+0x1a0/0x1a0 [ 226.309460] ? check_preemption_disabled+0x35/0x240 [ 226.314455] ? retint_kernel+0x2d/0x2d [ 226.318321] perf_callchain_kernel+0x38c/0x520 [ 226.322892] ? arch_perf_update_userpage+0x300/0x300 [ 226.327975] ? do_mmap+0x610/0xcb0 [ 226.331583] ? retint_kernel+0x2d/0x2d [ 226.335454] ? check_preemption_disabled+0x35/0x240 [ 226.340452] get_perf_callchain+0x2de/0x740 [ 226.344755] ? put_callchain_buffers+0x60/0x60 [ 226.349322] perf_callchain+0x147/0x190 [ 226.353292] perf_prepare_sample+0xc9a/0x1370 [ 226.358044] ? lock_acquire+0x170/0x3f0 [ 226.361997] ? perf_output_sample+0x16f0/0x16f0 [ 226.366658] ? check_preemption_disabled+0x35/0x240 [ 226.371672] perf_event_output_forward+0xc9/0x1f0 [ 226.376531] ? perf_prepare_sample+0x1370/0x1370 [ 226.381290] ? __lock_acquire+0x5fc/0x3f20 [ 226.385609] ? check_preemption_disabled+0x35/0x240 [ 226.390628] ? check_preemption_disabled+0x35/0x240 [ 226.395645] __perf_event_overflow+0x113/0x310 [ 226.400225] perf_swevent_hrtimer+0x220/0x350 [ 226.404713] ? __perf_event_overflow+0x310/0x310 [ 226.409465] ? __lock_acquire+0x5fc/0x3f20 [ 226.413820] ? debug_object_deactivate+0x1da/0x2e0 [ 226.418752] ? lock_acquire+0x170/0x3f0 [ 226.422715] ? lock_downgrade+0x740/0x740 [ 226.426856] ? _raw_spin_unlock_irqrestore+0x66/0xe0 [ 226.431952] ? __hrtimer_run_queues+0x2c5/0xc80 [ 226.436878] ? clockevents_program_event+0x108/0x2d0 [ 226.441986] ? rcu_lockdep_current_cpu_online+0xed/0x140 [ 226.447437] __hrtimer_run_queues+0x30b/0xc80 [ 226.451924] ? __perf_event_overflow+0x310/0x310 [ 226.456670] ? retrigger_next_event+0x310/0x310 [ 226.461337] ? ktime_get_update_offsets_now+0x272/0x3f0 [ 226.466693] hrtimer_interrupt+0x1e6/0x5e0 [ 226.470937] smp_apic_timer_interrupt+0x117/0x5e0 [ 226.475768] apic_timer_interrupt+0x93/0xa0 [ 226.480107] [ 226.482510] RIP: 0010:lock_is_held_type+0x81/0x210 [ 226.487420] RSP: 0018:ffff8880a9967bf0 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff10 [ 226.495121] RAX: 1ffffffff11e1278 RBX: ffff8880b4fd43c0 RCX: 0000000000000000 [ 226.502388] RDX: dffffc0000000000 RSI: 00000000ffffffff RDI: ffff8880b4fd4c44 [ 226.509648] RBP: ffffffff88f77900 R08: ffff8880b4fd43c0 R09: dffffc0000000000 [ 226.517022] R10: 0000000000000000 R11: ffff8880b4fd43c0 R12: ffffffff810543b2 [ 226.524302] R13: 0000000000000000 R14: 0000000000000000 R15: ffff8880a38b1ac0 [ 226.531593] ? kvm_vcpu_ioctl+0x532/0xc50 [ 226.535749] ? rcu_lockdep_current_cpu_online+0xed/0x140 [ 226.541196] kvm_vcpu_ioctl+0x532/0xc50 [ 226.545196] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 226.550323] ? kfree+0x1f0/0x250 [ 226.553679] ? kvm_vcpu_ioctl+0x532/0xc50 [ 226.557815] ? kvm_vm_ioctl_check_extension_generic+0xa0/0xa0 [ 226.563692] ? userfaultfd_unmap_complete+0x225/0x320 [ 226.568875] ? mmap_region+0x22b/0x1220 [ 226.572839] ? userfaultfd_unmap_prep+0x450/0x450 [ 226.577675] ? lock_downgrade+0x740/0x740 [ 226.581806] ? do_mmap+0x610/0xcb0 [ 226.585342] retint_kernel+0x2d/0x2d [ 226.589046] RIP: 0000:do_vfs_ioctl+0x0/0xff0 [ 226.593434] RSP: 0000:0000000000000000 EFLAGS: ffffffff87400976 ORIG_RAX: ffffffff88b70180 [ 226.601838] RAX: ffff88823fff704f RBX: ffff888239425300 RCX: ffff88823fff7058 [ 226.609095] RDX: ffff8880a9967df8 RSI: 1ffffffff1198dad RDI: 0000000041b58ab3 [ 226.616351] RBP: 0000000000000000 R08: ffff88823fff7057 R09: ffffffff818ae40a [ 226.623603] R10: ffff8880a27a1780 R11: 000000000000ae80 R12: 1ffff1101532cfba [ 226.630862] R13: ffffffff81053e80 R14: 0000000000000000 R15: 0000000000000000 [ 226.638126] ? kvm_vm_ioctl_check_extension_generic+0xa0/0xa0 [ 226.643994] ? do_vfs_ioctl+0x75a/0xff0 [ 226.647955] ? retint_kernel+0x2d/0x2d [ 226.651867] ? __fdget+0x15d/0x1f0 [ 226.655393] ? security_file_ioctl+0x83/0xb0 [ 226.659791] ? SyS_ioctl+0x7f/0xb0 [ 226.663315] ? do_vfs_ioctl+0xff0/0xff0 [ 226.667285] ? do_syscall_64+0x1d5/0x640 [ 226.671335] ? entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 226.676685] [ 226.678296] The buggy address belongs to the page: [ 226.683208] page:ffffea0002a659c0 count:0 mapcount:0 mapping: (null) index:0x0 [ 226.691421] flags: 0xfff00000000000() [ 226.695211] raw: 00fff00000000000 0000000000000000 0000000000000000 00000000ffffffff [ 226.703077] raw: 0000000000000000 0000000100000001 0000000000000000 0000000000000000 [ 226.710938] page dumped because: kasan: bad access detected [ 226.716632] [ 226.718242] Memory state around the buggy address: [ 226.723154] ffff8880a9967c80: f1 f1 00 00 00 f2 f2 f2 00 00 00 f2 f2 f2 f2 f2 [ 226.730495] ffff8880a9967d00: 00 00 00 00 00 00 00 00 00 f3 f3 f3 f3 f3 00 00 [ 226.737970] >ffff8880a9967d80: 00 00 00 00 00 00 00 00 00 00 f1 f1 f1 f1 00 f2 [ 226.745317] ^ [ 226.751793] ffff8880a9967e00: f2 f2 00 00 00 f2 f2 f2 f2 f2 00 00 00 00 f3 f3 [ 226.759151] ffff8880a9967e80: f3 f3 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 226.766489] ================================================================== [ 226.773976] Disabling lock debugging due to kernel taint [ 226.779435] Kernel panic - not syncing: panic_on_warn set ... [ 226.779435] [ 226.786790] CPU: 1 PID: 21129 Comm: syz-executor574 Tainted: G B 4.14.260-syzkaller #0 [ 226.795960] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 226.805327] Call Trace: [ 226.807924] [ 226.810071] dump_stack+0x1b2/0x281 [ 226.813683] panic+0x1f9/0x42d [ 226.816858] ? add_taint.cold+0x16/0x16 [ 226.820830] ? lock_downgrade+0x740/0x740 [ 226.824982] kasan_end_report+0x43/0x49 [ 226.828935] kasan_report_error.cold+0xa7/0x191 [ 226.833589] ? unwind_next_frame+0x146f/0x17d0 [ 226.838153] __asan_report_load8_noabort+0x68/0x70 [ 226.843065] ? unwind_next_frame+0x146f/0x17d0 [ 226.847630] unwind_next_frame+0x146f/0x17d0 [ 226.852043] ? retint_kernel+0x2d/0x2d [ 226.855912] ? deref_stack_reg+0x1a0/0x1a0 [ 226.860132] ? check_preemption_disabled+0x35/0x240 [ 226.865308] ? retint_kernel+0x2d/0x2d [ 226.869243] perf_callchain_kernel+0x38c/0x520 [ 226.873809] ? arch_perf_update_userpage+0x300/0x300 [ 226.878895] ? do_mmap+0x610/0xcb0 [ 226.882450] ? retint_kernel+0x2d/0x2d [ 226.886321] ? check_preemption_disabled+0x35/0x240 [ 226.891321] get_perf_callchain+0x2de/0x740 [ 226.895627] ? put_callchain_buffers+0x60/0x60 [ 226.900193] perf_callchain+0x147/0x190 [ 226.904151] perf_prepare_sample+0xc9a/0x1370 [ 226.908632] ? lock_acquire+0x170/0x3f0 [ 226.912589] ? perf_output_sample+0x16f0/0x16f0 [ 226.917251] ? check_preemption_disabled+0x35/0x240 [ 226.922252] perf_event_output_forward+0xc9/0x1f0 [ 226.927076] ? perf_prepare_sample+0x1370/0x1370 [ 226.931818] ? __lock_acquire+0x5fc/0x3f20 [ 226.936209] ? check_preemption_disabled+0x35/0x240 [ 226.941207] ? check_preemption_disabled+0x35/0x240 [ 226.946207] __perf_event_overflow+0x113/0x310 [ 226.950772] perf_swevent_hrtimer+0x220/0x350 [ 226.955252] ? __perf_event_overflow+0x310/0x310 [ 226.959993] ? __lock_acquire+0x5fc/0x3f20 [ 226.964333] ? debug_object_deactivate+0x1da/0x2e0 [ 226.969249] ? lock_acquire+0x170/0x3f0 [ 226.973208] ? lock_downgrade+0x740/0x740 [ 226.977340] ? _raw_spin_unlock_irqrestore+0x66/0xe0 [ 226.982429] ? __hrtimer_run_queues+0x2c5/0xc80 [ 226.987131] ? clockevents_program_event+0x108/0x2d0 [ 226.992218] ? rcu_lockdep_current_cpu_online+0xed/0x140 [ 226.997651] __hrtimer_run_queues+0x30b/0xc80 [ 227.002140] ? __perf_event_overflow+0x310/0x310 [ 227.006876] ? retrigger_next_event+0x310/0x310 [ 227.011525] ? ktime_get_update_offsets_now+0x272/0x3f0 [ 227.016878] hrtimer_interrupt+0x1e6/0x5e0 [ 227.021099] smp_apic_timer_interrupt+0x117/0x5e0 [ 227.025923] apic_timer_interrupt+0x93/0xa0 [ 227.030228] [ 227.032450] RIP: 0010:lock_is_held_type+0x81/0x210 [ 227.037359] RSP: 0018:ffff8880a9967bf0 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff10 [ 227.045049] RAX: 1ffffffff11e1278 RBX: ffff8880b4fd43c0 RCX: 0000000000000000 [ 227.052302] RDX: dffffc0000000000 RSI: 00000000ffffffff RDI: ffff8880b4fd4c44 [ 227.059563] RBP: ffffffff88f77900 R08: ffff8880b4fd43c0 R09: dffffc0000000000 [ 227.066820] R10: 0000000000000000 R11: ffff8880b4fd43c0 R12: ffffffff810543b2 [ 227.074073] R13: 0000000000000000 R14: 0000000000000000 R15: ffff8880a38b1ac0 [ 227.081422] ? kvm_vcpu_ioctl+0x532/0xc50 [ 227.085565] ? rcu_lockdep_current_cpu_online+0xed/0x140 [ 227.091000] kvm_vcpu_ioctl+0x532/0xc50 [ 227.094963] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 227.099962] ? kfree+0x1f0/0x250 [ 227.103310] ? kvm_vcpu_ioctl+0x532/0xc50 [ 227.107439] ? kvm_vm_ioctl_check_extension_generic+0xa0/0xa0 [ 227.113311] ? userfaultfd_unmap_complete+0x225/0x320 [ 227.118485] ? mmap_region+0x22b/0x1220 [ 227.122444] ? userfaultfd_unmap_prep+0x450/0x450 [ 227.127363] ? lock_downgrade+0x740/0x740 [ 227.131496] ? do_mmap+0x610/0xcb0 [ 227.135019] retint_kernel+0x2d/0x2d [ 227.138723] RIP: 0000:do_vfs_ioctl+0x0/0xff0 [ 227.143109] RSP: 0000:0000000000000000 EFLAGS: ffffffff87400976 ORIG_RAX: ffffffff88b70180 [ 227.151579] RAX: ffff88823fff704f RBX: ffff888239425300 RCX: ffff88823fff7058 [ 227.158834] RDX: ffff8880a9967df8 RSI: 1ffffffff1198dad RDI: 0000000041b58ab3 [ 227.166091] RBP: 0000000000000000 R08: ffff88823fff7057 R09: ffffffff818ae40a [ 227.173348] R10: ffff8880a27a1780 R11: 000000000000ae80 R12: 1ffff1101532cfba [ 227.180602] R13: ffffffff81053e80 R14: 0000000000000000 R15: 0000000000000000 [ 227.187861] ? kvm_vm_ioctl_check_extension_generic+0xa0/0xa0 [ 227.193726] ? do_vfs_ioctl+0x75a/0xff0 [ 227.197683] ? retint_kernel+0x2d/0x2d [ 227.201899] ? __fdget+0x15d/0x1f0 [ 227.205422] ? security_file_ioctl+0x83/0xb0 [ 227.209809] ? SyS_ioctl+0x7f/0xb0 [ 227.213327] ? do_vfs_ioctl+0xff0/0xff0 [ 227.217290] ? do_syscall_64+0x1d5/0x640 [ 227.221339] ? entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 227.227078] Kernel Offset: disabled [ 227.230690] Rebooting in 86400 seconds..