[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 35.813994] audit: type=1800 audit(1539313327.503:25): pid=5674 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 35.838432] audit: type=1800 audit(1539313327.503:26): pid=5674 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 35.865212] audit: type=1800 audit(1539313327.513:27): pid=5674 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.80' (ECDSA) to the list of known hosts. 2018/10/12 03:02:19 parsed 1 programs 2018/10/12 03:02:20 executed programs: 0 syzkaller login: [ 48.995765] IPVS: ftp: loaded support on port[0] = 21 [ 49.180663] bridge0: port 1(bridge_slave_0) entered blocking state [ 49.187084] bridge0: port 1(bridge_slave_0) entered disabled state [ 49.194123] device bridge_slave_0 entered promiscuous mode [ 49.209956] bridge0: port 2(bridge_slave_1) entered blocking state [ 49.216336] bridge0: port 2(bridge_slave_1) entered disabled state [ 49.223325] device bridge_slave_1 entered promiscuous mode [ 49.237298] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 49.252211] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 49.290472] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 49.306833] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 49.363600] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 49.371266] team0: Port device team_slave_0 added [ 49.385127] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 49.392304] team0: Port device team_slave_1 added [ 49.405499] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 49.421510] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 49.437555] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 49.453769] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 49.560833] bridge0: port 2(bridge_slave_1) entered blocking state [ 49.567246] bridge0: port 2(bridge_slave_1) entered forwarding state [ 49.573939] bridge0: port 1(bridge_slave_0) entered blocking state [ 49.580290] bridge0: port 1(bridge_slave_0) entered forwarding state [ 49.945966] IPv6: ADDRCONF(NETDEV_UP): bond0: link is not ready [ 49.952313] 8021q: adding VLAN 0 to HW filter on device bond0 [ 49.990950] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 50.029902] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 50.037041] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 50.075930] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 50.082077] 8021q: adding VLAN 0 to HW filter on device team0 [ 50.129828] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 50.314776] ------------[ cut here ]------------ [ 50.321481] usb usb7: BOGUS urb flags, 1 --> 0 [ 50.326351] WARNING: CPU: 0 PID: 6095 at drivers/usb/core/urb.c:503 usb_submit_urb+0x717/0x14e0 [ 50.335245] Kernel panic - not syncing: panic_on_warn set ... [ 50.335245] [ 50.342595] CPU: 0 PID: 6095 Comm: syz-executor0 Not tainted 4.19.0-rc7+ #55 [ 50.349765] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 50.359107] Call Trace: [ 50.361683] dump_stack+0x1c4/0x2b4 [ 50.365299] ? dump_stack_print_info.cold.2+0x52/0x52 [ 50.370480] panic+0x238/0x4e7 [ 50.373660] ? add_taint.cold.5+0x16/0x16 [ 50.377789] ? __warn.cold.8+0x148/0x1ba [ 50.381828] ? __warn.cold.8+0x117/0x1ba [ 50.385869] ? usb_submit_urb+0x717/0x14e0 [ 50.390082] __warn.cold.8+0x163/0x1ba [ 50.393951] ? usb_submit_urb+0x717/0x14e0 [ 50.398542] report_bug+0x254/0x2d0 [ 50.402160] do_error_trap+0x1fc/0x4d0 [ 50.406070] ? math_error+0x3f0/0x3f0 [ 50.409973] ? vprintk_default+0x28/0x30 [ 50.414029] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 50.418870] ? trace_hardirqs_on_caller+0x310/0x310 [ 50.423870] ? printk+0xa7/0xcf [ 50.427239] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 50.432070] do_invalid_op+0x1b/0x20 [ 50.435781] invalid_op+0x14/0x20 [ 50.439224] RIP: 0010:usb_submit_urb+0x717/0x14e0 [ 50.444068] Code: 83 fc 48 8b 45 d0 48 8d b8 a0 00 00 00 e8 d1 be 44 ff 45 89 e0 44 89 e9 4c 89 fa 48 89 c6 48 c7 c7 00 72 71 88 e8 09 b3 4d fc <0f> 0b e8 12 e0 83 fc 48 c7 c6 00 73 71 88 4c 89 f7 e8 53 e1 83 fc [ 50.462976] RSP: 0018:ffff8801b991f268 EFLAGS: 00010286 [ 50.468344] RAX: 0000000000000000 RBX: ffff8801ccf62d00 RCX: 0000000000000000 [ 50.475604] RDX: 0000000000000000 RSI: ffffffff81650405 RDI: 0000000000000005 [ 50.482855] RBP: ffff8801b991f2d8 R08: ffff8801cd98c6c0 R09: ffffed003b5c3ee2 [ 50.490108] R10: ffffed003b5c3ee2 R11: ffff8801dae1f717 R12: 0000000000000000 [ 50.497364] R13: 0000000000000001 R14: 0000000000000000 R15: ffff8801cdd2ef80 [ 50.504636] ? vprintk_func+0x85/0x181 [ 50.508630] ? usb_submit_urb+0x717/0x14e0 [ 50.512955] ? kasan_check_write+0x14/0x20 [ 50.517185] proc_do_submiturb+0x1b7d/0x4020 [ 50.521585] ? __might_fault+0x101/0x1e0 [ 50.525745] ? free_async+0x540/0x540 [ 50.529652] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 50.535196] ? _copy_from_user+0xdf/0x150 [ 50.539338] proc_submiturb_compat+0x544/0x800 [ 50.543908] ? proc_do_submiturb+0x4020/0x4020 [ 50.548603] usbdev_do_ioctl+0x19a2/0x3b50 [ 50.552859] ? processcompl_compat+0x680/0x680 [ 50.557793] ? follow_pfn+0x2e0/0x2e0 [ 50.561584] ? do_raw_spin_trylock+0x1c0/0x1c0 [ 50.566153] ? mnt_get_count+0x150/0x150 [ 50.570367] ? do_wp_page+0x76c/0x1390 [ 50.574256] ? drop_futex_key_refs.isra.15+0x6d/0xe0 [ 50.579352] ? futex_wake+0x304/0x760 [ 50.583141] ? kasan_check_read+0x11/0x20 [ 50.587280] ? do_raw_spin_trylock+0x1c0/0x1c0 [ 50.591847] ? __pte_alloc_kernel+0x220/0x220 [ 50.596381] ? mark_held_locks+0x130/0x130 [ 50.600617] ? lock_downgrade+0x900/0x900 [ 50.604777] ? do_futex+0x249/0x26d0 [ 50.608482] ? kasan_check_read+0x11/0x20 [ 50.612616] ? do_raw_spin_unlock+0xa7/0x2f0 [ 50.617007] ? do_raw_spin_trylock+0x1c0/0x1c0 [ 50.621706] ? add_mm_counter_fast+0xd0/0xd0 [ 50.626103] ? _raw_spin_unlock+0x2c/0x50 [ 50.630236] ? __handle_mm_fault+0x9ab/0x53e0 [ 50.634722] ? vmf_insert_mixed_mkwrite+0xa0/0xa0 [ 50.639563] ? smk_access+0x53b/0x700 [ 50.643361] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 50.648880] ? smack_log+0x423/0x590 [ 50.652646] ? smk_access_entry+0x310/0x310 [ 50.657007] ? lock_acquire+0x1ed/0x520 [ 50.660975] ? smk_tskacc+0x3dd/0x520 [ 50.664777] usbdev_ioctl+0x25/0x30 [ 50.668393] ? usbdev_compat_ioctl+0x30/0x30 [ 50.674348] do_vfs_ioctl+0x1de/0x1720 [ 50.678490] ? ioctl_preallocate+0x300/0x300 [ 50.682889] ? smk_curacc+0x7f/0xa0 [ 50.686506] ? smack_file_ioctl+0x210/0x3c0 [ 50.691074] ? fget_raw+0x20/0x20 [ 50.694510] ? smack_file_lock+0x2e0/0x2e0 [ 50.698737] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 50.704261] ? security_file_ioctl+0x94/0xc0 [ 50.709542] ksys_ioctl+0xa9/0xd0 [ 50.714640] __x64_sys_ioctl+0x73/0xb0 [ 50.720381] do_syscall_64+0x1b9/0x820 [ 50.726129] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 50.733633] ? syscall_return_slowpath+0x5e0/0x5e0 [ 50.739558] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 50.744387] ? trace_hardirqs_on_caller+0x310/0x310 [ 50.749400] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 50.754408] ? prepare_exit_to_usermode+0x291/0x3b0 [ 50.759408] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 50.764309] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 50.769491] RIP: 0033:0x457519 [ 50.772670] Code: 1d b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 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 eb b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 50.792336] RSP: 002b:00007ffc6e5f5b78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 50.800043] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000457519 [ 50.807296] RDX: 0000000020000080 RSI: 00000000802c550a RDI: 0000000000000003 [ 50.814550] RBP: 000000000072bf00 R08: 0000000000000000 R09: 0000000000000000 [ 50.821816] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000c7f914 [ 50.829710] R13: 00000000004bf65f R14: 00000000004cf538 R15: 00000000ffffffff [ 50.840647] Kernel Offset: disabled [ 50.844273] Rebooting in 86400 seconds..