[ OK ] Started Getty on tty2. [ OK ] Started Serial Getty on ttyS0. [ OK ] Started Getty on tty1. [ OK ] Reached target Login Prompts. [ OK ] Started OpenBSD Secure Shell server. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.15' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program syzkaller login: [ 1604.125651][T10672] ------------[ cut here ]------------ [ 1604.131530][T10672] do not call blocking ops when !TASK_RUNNING; state=8 set at [<00000000ec512c94>] ptrace_stop+0x0/0x9e0 [ 1604.144009][T10672] WARNING: CPU: 1 PID: 10672 at kernel/sched/core.c:7012 __might_sleep+0x135/0x190 [ 1604.153852][T10672] Kernel panic - not syncing: panic_on_warn set ... [ 1604.160455][T10672] CPU: 1 PID: 10672 Comm: syz-executor978 Not tainted 5.8.0-rc6-next-20200723-syzkaller #0 [ 1604.170518][T10672] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 1604.180641][T10672] Call Trace: [ 1604.184023][T10672] dump_stack+0x18f/0x20d [ 1604.188415][T10672] panic+0x2e3/0x75c [ 1604.193285][T10672] ? __warn_printk+0xf3/0xf3 [ 1604.197871][T10672] ? __warn.cold+0x5/0x45 [ 1604.202221][T10672] ? __warn+0xd6/0x1f2 [ 1604.206279][T10672] ? __might_sleep+0x135/0x190 [ 1604.211152][T10672] __warn.cold+0x20/0x45 [ 1604.215429][T10672] ? __might_sleep+0x135/0x190 [ 1604.220306][T10672] report_bug+0x1bd/0x210 [ 1604.224757][T10672] handle_bug+0x38/0x90 [ 1604.228938][T10672] exc_invalid_op+0x14/0x40 [ 1604.233510][T10672] asm_exc_invalid_op+0x12/0x20 [ 1604.238369][T10672] RIP: 0010:__might_sleep+0x135/0x190 [ 1604.243728][T10672] Code: 65 48 8b 1c 25 c0 fe 01 00 48 8d 7b 10 48 89 fe 48 c1 ee 03 80 3c 06 00 75 2b 48 8b 73 10 48 c7 c7 c0 3b 4b 88 e8 ed 34 f5 ff <0f> 0b e9 46 ff ff ff e8 1f 03 64 00 e9 29 ff ff ff e8 15 03 64 00 [ 1604.263321][T10672] RSP: 0018:ffffc90008f27c78 EFLAGS: 00010282 [ 1604.269381][T10672] RAX: 0000000000000000 RBX: ffff8880a70fa240 RCX: 0000000000000000 [ 1604.277340][T10672] RDX: ffff8880a70fa240 RSI: ffffffff815d8ed7 RDI: fffff520011e4f81 [ 1604.285388][T10672] RBP: ffffffff884aafa0 R08: 0000000000000001 R09: ffff8880ae7318e7 [ 1604.293353][T10672] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000039 [ 1604.301470][T10672] R13: 0000000000000000 R14: 0000000000000000 R15: ffff8880a70fa6c8 [ 1604.309540][T10672] ? vprintk_func+0x97/0x1a6 [ 1604.314131][T10672] ? __might_sleep+0x135/0x190 [ 1604.319165][T10672] ? schedule+0xe7/0x2a0 executing program [ 1604.323409][T10672] ptrace_stop+0x4e2/0x9e0 [ 1604.327834][T10672] get_signal+0xddc/0x1ee0 [ 1604.332415][T10672] do_signal+0x82/0x2520 [ 1604.336671][T10672] ? __do_sys_wait4+0xb4/0x150 [ 1604.341429][T10672] ? copy_siginfo_to_user32+0xa0/0xa0 [ 1604.347120][T10672] ? __x64_sys_futex+0x378/0x4e0 [ 1604.352184][T10672] ? __x64_sys_futex+0x382/0x4e0 [ 1604.357120][T10672] ? do_futex+0x1a50/0x1a50 [ 1604.361705][T10672] ? __prepare_exit_to_usermode+0x95/0x1c0 [ 1604.367538][T10672] ? lockdep_hardirqs_on_prepare+0x354/0x530 [ 1604.373515][T10672] __prepare_exit_to_usermode+0x11f/0x1c0 [ 1604.379249][T10672] do_syscall_64+0x6c/0xe0 [ 1604.383679][T10672] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 1604.389600][T10672] RIP: 0033:0x446d39 [ 1604.393589][T10672] Code: Bad RIP value. [ 1604.397643][T10672] RSP: 002b:00007f9bc48dbdb8 EFLAGS: 00000246 ORIG_RAX: 000000000000003d [ 1604.406054][T10672] RAX: fffffffffffffe00 RBX: 00000000006dcc28 RCX: 0000000000446d39 [ 1604.414197][T10672] RDX: 0000000080000002 RSI: 0000000000000000 RDI: 0000000000000000 [ 1604.422162][T10672] RBP: 00000000006dcc20 R08: 0000000000000000 R09: 0000000000000000 [ 1604.430157][T10672] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dcc2c [ 1604.438127][T10672] R13: 00007ffe323f527f R14: 00007f9bc48dc9c0 R15: 0000000000000000 [ 1604.447742][T10672] Kernel Offset: disabled [ 1604.452207][T10672] Rebooting in 86400 seconds..