Debian GNU/Linux 9 syzkaller ttyS0

Warning: Permanently added '10.128.0.61' (ECDSA) to the list of known hosts.
executing program
syzkaller login: [   44.879489][ T6842] general protection fault, probably for non-canonical address 0xdffffc0000000008: 0000 [#1] PREEMPT SMP KASAN
[   44.891229][ T6842] KASAN: null-ptr-deref in range [0x0000000000000040-0x0000000000000047]
[   44.899637][ T6842] CPU: 0 PID: 6842 Comm: syz-executor006 Not tainted 5.8.0-syzkaller #0
[   44.907951][ T6842] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   44.918001][ T6842] RIP: 0010:io_poll_double_wake+0x6b/0x360
[   44.923777][ T6842] Code: 8d 9d b8 00 00 00 48 89 d8 48 c1 e8 03 42 80 3c 20 00 74 08 48 89 df e8 53 64 de ff 48 8b 1b 48 83 c3 40 48 89 d8 48 c1 e8 03 <42> 80 3c 20 00 74 08 48 89 df e8 36 64 de ff 4c 8b 33 31 ff 44 89
[   44.943387][ T6842] RSP: 0018:ffffc90001717b20 EFLAGS: 00010002
[   44.949422][ T6842] RAX: 0000000000000008 RBX: 0000000000000040 RCX: ffff88809e0fe4c0
[   44.957416][ T6842] RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffff8880a2e7dc98
[   44.965363][ T6842] RBP: ffff8880a2e7dc98 R08: 0000000000000000 R09: ffffc90001717be8
[   44.973347][ T6842] R10: fffff520002e2f70 R11: 0000000000000000 R12: dffffc0000000000
[   44.981293][ T6842] R13: ffff88809a429e40 R14: 0000000000000000 R15: 0000000000000000
[   44.989238][ T6842] FS:  0000000002640880(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000
[   44.998148][ T6842] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   45.004703][ T6842] CR2: 00007f2629c956c0 CR3: 000000009e4e7000 CR4: 00000000001506f0
[   45.012657][ T6842] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   45.020615][ T6842] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   45.028569][ T6842] Call Trace:
[   45.031845][ T6842]  ? lock_is_held_type+0xb3/0xe0
[   45.036753][ T6842]  __wake_up_common+0x30a/0x4e0
[   45.041578][ T6842]  __wake_up+0xd4/0x150
[   45.045710][ T6842]  n_tty_set_termios+0xa60/0x1080
[   45.050708][ T6842]  ? n_tty_ioctl+0x310/0x310
[   45.055266][ T6842]  tty_set_termios+0xcac/0x1510
[   45.060630][ T6842]  set_termios+0x4a1/0x580
[   45.065023][ T6842]  tty_mode_ioctl+0x7b2/0xa80
[   45.069673][ T6842]  ? n_tty_write+0x1170/0x1170
[   45.074405][ T6842]  tty_ioctl+0xf81/0x15c0
[   45.078718][ T6842]  ? do_vfs_ioctl+0x6bc/0x16d0
[   45.083453][ T6842]  ? bpf_lsm_file_ioctl+0x5/0x10
[   45.088358][ T6842]  ? tty_do_resize+0x180/0x180
[   45.093090][ T6842]  __se_sys_ioctl+0xfb/0x170
[   45.097651][ T6842]  do_syscall_64+0x31/0x70
[   45.102039][ T6842]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   45.107948][ T6842] RIP: 0033:0x4405d9
[   45.111825][ T6842] Code: 18 89 d0 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 db 13 fc ff c3 66 2e 0f 1f 84 00 00 00 00
[   45.131476][ T6842] RSP: 002b:00007ffe5f581ef8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[   45.139891][ T6842] RAX: ffffffffffffffda RBX: 0000000000401ed0 RCX: 00000000004405d9
[   45.147856][ T6842] RDX: 0000000020000080 RSI: 0000000000005404 RDI: 0000000000000004
[   45.155796][ T6842] RBP: 00000000006ca018 R08: 0000000000000000 R09: 0000000000000000
[   45.163743][ T6842] R10: 0000000000003e69 R11: 0000000000000246 R12: 0000000000401e40
[   45.171692][ T6842] R13: 0000000000401ed0 R14: 0000000000000000 R15: 0000000000000000
[   45.179636][ T6842] Modules linked in:
[   45.183513][ T6842] ---[ end trace 9d629bc7ccf35892 ]---
[   45.188946][ T6842] RIP: 0010:io_poll_double_wake+0x6b/0x360
[   45.194730][ T6842] Code: 8d 9d b8 00 00 00 48 89 d8 48 c1 e8 03 42 80 3c 20 00 74 08 48 89 df e8 53 64 de ff 48 8b 1b 48 83 c3 40 48 89 d8 48 c1 e8 03 <42> 80 3c 20 00 74 08 48 89 df e8 36 64 de ff 4c 8b 33 31 ff 44 89
[   45.214315][ T6842] RSP: 0018:ffffc90001717b20 EFLAGS: 00010002
[   45.220350][ T6842] RAX: 0000000000000008 RBX: 0000000000000040 RCX: ffff88809e0fe4c0
[   45.228303][ T6842] RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffff8880a2e7dc98
[   45.236266][ T6842] RBP: ffff8880a2e7dc98 R08: 0000000000000000 R09: ffffc90001717be8
[   45.244218][ T6842] R10: fffff520002e2f70 R11: 0000000000000000 R12: dffffc0000000000
[   45.252171][ T6842] R13: ffff88809a429e40 R14: 0000000000000000 R15: 0000000000000000
[   45.260131][ T6842] FS:  0000000002640880(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000
[   45.269038][ T6842] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   45.275590][ T6842] CR2: 00007f2629c956c0 CR3: 000000009e4e7000 CR4: 00000000001506f0
[   45.283539][ T6842] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   45.291481][ T6842] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   45.299436][ T6842] Kernel panic - not syncing: Fatal exception
[   45.306524][ T6842] Kernel Offset: disabled
[   45.310832][ T6842] Rebooting in 86400 seconds..