[[0;32m OK [0m] Reached target Login Prompts.
[[0;32m OK [0m] Reached target Multi-User System.
[[0;32m OK [0m] Reached target Graphical Interface.
Starting Update UTMP about System Runlevel Changes...
[[0;32m OK [0m] Started Update UTMP about System Runlevel Changes.
Debian GNU/Linux 9 syzkaller ttyS0
Warning: Permanently added '10.128.10.45' (ECDSA) to the list of known hosts.
executing program
syzkaller login: [ 62.669483][ T6842] ------------[ cut here ]------------
[ 62.674960][ T6842] WARNING: CPU: 1 PID: 6842 at kernel/entry/common.c:338 irqentry_exit+0x47/0x90
[ 62.684139][ T6842] Kernel panic - not syncing: panic_on_warn set ...
[ 62.690698][ T6842] CPU: 1 PID: 6842 Comm: syz-executor720 Not tainted 5.9.0-rc1-syzkaller #0
[ 62.699335][ T6842] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 62.709394][ T6842] Call Trace:
[ 62.712661][ T6842] dump_stack+0x18f/0x20d
[ 62.717091][ T6842] panic+0x2e3/0x75c
[ 62.720966][ T6842] ? __warn_printk+0xf3/0xf3
[ 62.725572][ T6842] ? printk+0xba/0xed
[ 62.729524][ T6842] ? log_store.cold+0x16/0x16
[ 62.734175][ T6842] ? no_context+0x120/0x9f0
[ 62.738648][ T6842] ? __warn.cold+0x5/0x4a
[ 62.742953][ T6842] ? __warn+0xd6/0x1f2
[ 62.747056][ T6842] ? irqentry_exit+0x47/0x90
[ 62.751634][ T6842] __warn.cold+0x20/0x4a
[ 62.755849][ T6842] ? irqentry_exit+0x47/0x90
[ 62.760412][ T6842] report_bug+0x1bd/0x210
[ 62.764715][ T6842] handle_bug+0x38/0x90
[ 62.768842][ T6842] exc_invalid_op+0x14/0x40
[ 62.773317][ T6842] asm_exc_invalid_op+0x12/0x20
[ 62.778164][ T6842] RIP: 0010:irqentry_exit+0x47/0x90
[ 62.783351][ T6842] Code: 27 f6 87 91 00 00 00 02 74 18 40 84 f6 75 3b 65 8b 05 4d c4 0e 78 a9 ff ff ff 7f 74 11 e9 e1 cd 86 f9 40 84 f6 75 3f c3 eb 89 <0f> 0b eb ca e8 40 ba 6e f9 65 48 8b 04 25 c0 fe 01 00 48 8b 00 a8
[ 62.802925][ T6842] RSP: 0000:ffffc90000f2f2d0 EFLAGS: 00010002
[ 62.809483][ T6842] RAX: 0000000000000001 RBX: 0000000000000000 RCX: ffffffff817a01e7
[ 62.817432][ T6842] RDX: ffff88809304a440 RSI: 0000000000000000 RDI: ffffc90000f2f308
[ 62.825375][ T6842] RBP: ffffc90000f2f308 R08: 0000000000000000 R09: 0000000000000000
[ 62.833325][ T6842] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[ 62.841269][ T6842] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
[ 62.849258][ T6842] ? trace_hardirqs_off+0x27/0x210
[ 62.854343][ T6842] exc_page_fault+0xc2/0x160
[ 62.858903][ T6842] asm_exc_page_fault+0x1e/0x30
[ 62.863724][ T6842] RIP: 0010:__softirqentry_text_end+0x39/0x55
[ 62.869760][ T6842] Code: de 04 e0 ff ba f2 ff ff ff 31 c9 e9 db e5 d2 ff 41 bf f2 ff ff ff 31 c0 e9 1a 34 e1 f8 41 bf f2 ff ff ff 31 ed e9 35 34 e1 f8 <41> be f2 ff ff ff 48 31 c0 e9 42 37 e1 f8 41 be f2 ff ff ff 48 31
[ 62.889332][ T6842] RSP: 0000:ffffc90000f2f3b0 EFLAGS: 00010046
[ 62.895367][ T6842] RAX: 0000000000000000 RBX: ffffc90000f2f470 RCX: ffffffff81014192
[ 62.903326][ T6842] RDX: ffff88809304a440 RSI: ffffffff810141a0 RDI: 0000000000000006
[ 62.911288][ T6842] RBP: 0000000000000000 R08: 0000000000000000 R09: ffff88809304a447
[ 62.919235][ T6842] R10: 0000000000000000 R11: 0000000000000001 R12: ffffc90000f2f47c
[ 62.927181][ T6842] R13: dffffc0000000000 R14: 0000000000000000 R15: ffff88809304a440
[ 62.935133][ T6842] ? perf_callchain_user+0x7f2/0xba0
[ 62.940389][ T6842] ? perf_callchain_user+0x800/0xba0
[ 62.945647][ T6842] get_perf_callchain+0x321/0x620
[ 62.950642][ T6842] ? put_callchain_entry+0x90/0x90
[ 62.955741][ T6842] ? get_perf_callchain+0x3e0/0x620
[ 62.960910][ T6842] ? kvm_sched_clock_read+0x14/0x40
[ 62.966079][ T6842] ? sched_clock+0x2a/0x40
[ 62.970465][ T6842] ? sched_clock_cpu+0x18/0x1b0
[ 62.975288][ T6842] perf_callchain+0x165/0x1c0
[ 62.979937][ T6842] perf_prepare_sample+0x8fd/0x1d40
[ 62.985151][ T6842] ? perf_callchain+0x1c0/0x1c0
[ 62.989974][ T6842] ? lock_downgrade+0x830/0x830
[ 62.994839][ T6842] perf_event_output_forward+0xf3/0x270
[ 63.000370][ T6842] ? perf_prepare_sample+0x1d40/0x1d40
[ 63.005808][ T6842] ? perf_swevent_event+0x144/0x550
[ 63.010977][ T6842] ? tracing_generic_entry_update+0x1ed/0x270
[ 63.017013][ T6842] __perf_event_overflow+0x13c/0x370
[ 63.022271][ T6842] perf_swevent_event+0x4b9/0x550
[ 63.027266][ T6842] perf_tp_event+0x2e4/0xb50
[ 63.031828][ T6842] ? perf_event_mmap_output+0xa30/0xa30
[ 63.037364][ T6842] ? perf_tp_event+0x622/0xb50
[ 63.042101][ T6842] ? perf_event_mmap_output+0xa30/0xa30
[ 63.047624][ T6842] ? mark_lock+0xbc/0x1710
[ 63.052202][ T6842] ? __lock_acquire+0x16cb/0x5640
[ 63.057237][ T6842] ? perf_trace_run_bpf_submit+0x11c/0x200
[ 63.063018][ T6842] perf_trace_run_bpf_submit+0x11c/0x200
[ 63.068628][ T6842] perf_trace_lock_acquire+0x33f/0x520
[ 63.074063][ T6842] ? SOFTIRQ_verbose+0x10/0x10
[ 63.078800][ T6842] ? __lock_acquire+0xbb5/0x5640
[ 63.083752][ T6842] lock_acquire+0x382/0xad0
[ 63.088229][ T6842] ? clear_subpage+0x100/0x100
[ 63.092966][ T6842] ? lock_release+0x8e0/0x8e0
[ 63.097617][ T6842] ? lock_acquire+0x1f1/0xad0
[ 63.102264][ T6842] count_memcg_event_mm.part.0+0x39/0x3c0
[ 63.107951][ T6842] ? clear_subpage+0x100/0x100
[ 63.112802][ T6842] handle_mm_fault+0x11d/0x4590
[ 63.117626][ T6842] ? apply_to_existing_page_range+0x40/0x40
[ 63.123490][ T6842] ? down_read_trylock+0x193/0x350
[ 63.128570][ T6842] ? do_user_addr_fault+0x25e/0xbf0
[ 63.133736][ T6842] ? vmacache_find+0x62/0x310
[ 63.138394][ T6842] do_user_addr_fault+0x598/0xbf0
[ 63.143397][ T6842] ? rcu_read_lock_sched_held+0x3a/0xb0
[ 63.148968][ T6842] exc_page_fault+0xa8/0x160
[ 63.153534][ T6842] ? asm_exc_page_fault+0x8/0x30
[ 63.158492][ T6842] asm_exc_page_fault+0x1e/0x30
[ 63.163313][ T6842] RIP: 0033:0x49f4b0
[ 63.167285][ T6842] Code: Bad RIP value.
[ 63.171365][ T6842] RSP: 002b:00007ffd00f6c398 EFLAGS: 00010202
[ 63.177401][ T6842] RAX: 000000000049f4b0 RBX: 0000000000000001 RCX: 00000000006d1190
[ 63.185345][ T6842] RDX: 0000000000402120 RSI: 0000000000000000 RDI: 00000000004bf828
[ 63.193415][ T6842] RBP: 00007ffd00f6c3a0 R08: 0000000000000000 R09: 00000000004002c8
[ 63.201358][ T6842] R10: 00000000ffffffff R11: 0000000000000246 R12: 0000000000000001
[ 63.209301][ T6842] R13: 00000000006d1180 R14: 0000000000000000 R15: 0000000000000000
[ 63.218510][ T6842] Kernel Offset: disabled
[ 63.222827][ T6842] Rebooting in 86400 seconds..