[  OK  ] Started Getty on tty2.
[  OK  ] Started Serial Getty on ttyS0.
[  OK  ] Started Getty on tty1.
[  OK  ] Started getty on tty2-tty6 if dbus and logind are not available.
[  OK  ] Started OpenBSD Secure Shell server.

Debian GNU/Linux 9 syzkaller ttyS0

Warning: Permanently added '10.128.0.69' (ECDSA) to the list of known hosts.
2021/05/01 17:06:00 fuzzer started
2021/05/01 17:06:00 dialing manager at 10.128.0.169:44661
2021/05/01 17:06:00 syscalls: 3571
2021/05/01 17:06:00 code coverage: enabled
2021/05/01 17:06:00 comparison tracing: enabled
2021/05/01 17:06:00 extra coverage: enabled
2021/05/01 17:06:00 setuid sandbox: enabled
2021/05/01 17:06:00 namespace sandbox: enabled
2021/05/01 17:06:00 Android sandbox: /sys/fs/selinux/policy does not exist
2021/05/01 17:06:00 fault injection: enabled
2021/05/01 17:06:00 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled
2021/05/01 17:06:00 net packet injection: enabled
2021/05/01 17:06:00 net device setup: enabled
2021/05/01 17:06:00 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist
2021/05/01 17:06:00 devlink PCI setup: PCI device 0000:00:10.0 is not available
2021/05/01 17:06:00 USB emulation: enabled
2021/05/01 17:06:00 hci packet injection: enabled
2021/05/01 17:06:00 wifi device emulation: enabled
2021/05/01 17:06:00 802.15.4 emulation: enabled
2021/05/01 17:06:00 fetching corpus: 0, signal 0/2000 (executing program)
2021/05/01 17:06:01 Manager.Poll call failed: reading body read tcp 10.128.0.69:38908->10.128.0.169:44661: read: bad address
syzkaller login: [   71.682057][ T8416] general protection fault, probably for non-canonical address 0xdffffc000013d381: 0000 [#1] PREEMPT SMP KASAN
[   71.694006][ T8416] KASAN: probably user-memory-access in range [0x00000000009e9c08-0x00000000009e9c0f]
[   71.703646][ T8416] CPU: 0 PID: 8416 Comm: syz-fuzzer Not tainted 5.12.0-rc8-next-20210423-syzkaller #0
[   71.713182][ T8416] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   71.723972][ T8416] RIP: 0010:skb_release_data+0x3a0/0x750
[   71.729628][ T8416] Code: 48 8b 04 24 48 c1 e8 03 42 80 3c 30 00 0f 85 d3 02 00 00 49 63 c4 48 c1 e0 04 4a 8b 6c 28 30 48 8d 7d 08 48 89 f8 48 c1 e8 03 <42> 80 3c 30 00 0f 85 a7 02 00 00 48 8b 45 08 31 ff 48 89 c3 48 89
[   71.749243][ T8416] RSP: 0018:ffffc9000165f960 EFLAGS: 00010206
[   71.755571][ T8416] RAX: 000000000013d381 RBX: 0000000000000011 RCX: 0000000000000000
[   71.763546][ T8416] RDX: ffff8880148f3900 RSI: ffffffff8703c746 RDI: 00000000009e9c08
[   71.771527][ T8416] RBP: 00000000009e9c00 R08: 0000000000000011 R09: 00000000009e9c00
[   71.779503][ T8416] R10: ffffffff8703c733 R11: 0000000000000000 R12: 0000000000000010
[   71.787477][ T8416] R13: ffff88802e86fecc R14: dffffc0000000000 R15: ffff8880128b5c80
[   71.795443][ T8416] FS:  0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
[   71.804368][ T8416] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   71.810959][ T8416] CR2: 00007fee1a473f58 CR3: 00000000259a8000 CR4: 00000000001506f0
[   71.818941][ T8416] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   71.826897][ T8416] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   71.834873][ T8416] Call Trace:
[   71.838167][ T8416]  __kfree_skb+0x46/0x60
[   71.842420][ T8416]  __tcp_close+0x230/0x1170
[   71.846942][ T8416]  tcp_close+0x29/0xc0
[   71.850998][ T8416]  inet_release+0x12e/0x280
[   71.855495][ T8416]  __sock_release+0xcd/0x280
[   71.860077][ T8416]  sock_close+0x18/0x20
[   71.864233][ T8416]  __fput+0x288/0x920
[   71.868221][ T8416]  ? __sock_release+0x280/0x280
[   71.873062][ T8416]  task_work_run+0xdd/0x1a0
[   71.877572][ T8416]  do_exit+0xbfc/0x2a70
[   71.881726][ T8416]  ? find_held_lock+0x2d/0x110
[   71.886484][ T8416]  ? mm_update_next_owner+0x7a0/0x7a0
[   71.891844][ T8416]  ? get_signal+0x337/0x2150
[   71.896423][ T8416]  ? lock_downgrade+0x6e0/0x6e0
[   71.901285][ T8416]  do_group_exit+0x125/0x310
[   71.906354][ T8416]  get_signal+0x47f/0x2150
[   71.910780][ T8416]  ? _raw_spin_unlock_irq+0x2a/0x40
[   71.915979][ T8416]  ? __switch_to+0x57c/0x10a0
[   71.920652][ T8416]  arch_do_signal_or_restart+0x2a8/0x1eb0
[   71.926459][ T8416]  ? io_schedule_timeout+0x140/0x140
[   71.932187][ T8416]  ? preempt_schedule_irq+0x82/0x90
[   71.937389][ T8416]  ? copy_siginfo_to_user32+0xa0/0xa0
[   71.942954][ T8416]  ? __do_sys_futex+0x2ab/0x470
[   71.948241][ T8416]  ? do_futex+0x1780/0x1780
[   71.952755][ T8416]  exit_to_user_mode_prepare+0x171/0x280
[   71.958389][ T8416]  syscall_exit_to_user_mode+0x19/0x60
[   71.963970][ T8416]  do_syscall_64+0x47/0xb0
[   71.968389][ T8416]  entry_SYSCALL_64_after_hwframe+0x44/0xae
[   71.974277][ T8416] RIP: 0033:0x46e163
[   71.978164][ T8416] Code: Unable to access opcode bytes at RIP 0x46e139.
[   71.985016][ T8416] RSP: 002b:000000c0004c7f00 EFLAGS: 00000286 ORIG_RAX: 00000000000000ca
[   71.993423][ T8416] RAX: fffffffffffffe00 RBX: 000000c0004b6000 RCX: 000000000046e163
[   72.001497][ T8416] RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00000000018803b8
[   72.009463][ T8416] RBP: 000000c0004c7f48 R08: 0000000000000000 R09: 0000000000000000
[   72.017424][ T8416] R10: 0000000000000000 R11: 0000000000000286 R12: 000000000043b6a0
[   72.025395][ T8416] R13: 0000000000000000 R14: 0000000000947a14 R15: 0000000000000000
[   72.034240][ T8416] Modules linked in:
[   72.039684][ T8416] ---[ end trace 401b43f3091899a7 ]---
[   72.045155][ T8416] RIP: 0010:skb_release_data+0x3a0/0x750
[   72.050883][ T8416] Code: 48 8b 04 24 48 c1 e8 03 42 80 3c 30 00 0f 85 d3 02 00 00 49 63 c4 48 c1 e0 04 4a 8b 6c 28 30 48 8d 7d 08 48 89 f8 48 c1 e8 03 <42> 80 3c 30 00 0f 85 a7 02 00 00 48 8b 45 08 31 ff 48 89 c3 48 89
[   72.070702][ T8416] RSP: 0018:ffffc9000165f960 EFLAGS: 00010206
[   72.077082][ T8416] RAX: 000000000013d381 RBX: 0000000000000011 RCX: 0000000000000000
[   72.085085][ T8416] RDX: ffff8880148f3900 RSI: ffffffff8703c746 RDI: 00000000009e9c08
[   72.093169][ T8416] RBP: 00000000009e9c00 R08: 0000000000000011 R09: 00000000009e9c00
[   72.101926][ T8416] R10: ffffffff8703c733 R11: 0000000000000000 R12: 0000000000000010
[   72.109966][ T8416] R13: ffff88802e86fecc R14: dffffc0000000000 R15: ffff8880128b5c80
[   72.118034][ T8416] FS:  0000000000000000(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
[   72.127346][ T8416] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   72.133955][ T8416] CR2: 00007f934f4dc000 CR3: 0000000012a7b000 CR4: 00000000001506e0
[   72.142092][ T8416] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   72.150177][ T8416] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   72.158504][ T8416] Kernel panic - not syncing: Fatal exception
[   72.165382][ T8416] Kernel Offset: disabled
[   72.169716][ T8416] Rebooting in 86400 seconds..