[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 37.569846] audit: type=1800 audit(1539338095.121:25): pid=5689 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 37.595348] audit: type=1800 audit(1539338095.131:26): pid=5689 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 37.619355] audit: type=1800 audit(1539338095.131:27): pid=5689 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 '10.128.0.91' (ECDSA) to the list of known hosts. 2018/10/12 09:55:08 parsed 1 programs 2018/10/12 09:55:09 executed programs: 0 syzkaller login: [ 52.123174] IPVS: ftp: loaded support on port[0] = 21 [ 52.308227] bridge0: port 1(bridge_slave_0) entered blocking state [ 52.314852] bridge0: port 1(bridge_slave_0) entered disabled state [ 52.322315] device bridge_slave_0 entered promiscuous mode [ 52.336818] bridge0: port 2(bridge_slave_1) entered blocking state [ 52.343294] bridge0: port 2(bridge_slave_1) entered disabled state [ 52.350347] device bridge_slave_1 entered promiscuous mode [ 52.364583] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 52.379135] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 52.418664] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 52.435441] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 52.492040] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 52.499245] team0: Port device team_slave_0 added [ 52.513623] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 52.520686] team0: Port device team_slave_1 added [ 52.534788] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 52.550792] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 52.566837] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 52.582925] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 52.687101] bridge0: port 2(bridge_slave_1) entered blocking state [ 52.693609] bridge0: port 2(bridge_slave_1) entered forwarding state [ 52.700178] bridge0: port 1(bridge_slave_0) entered blocking state [ 52.706613] bridge0: port 1(bridge_slave_0) entered forwarding state [ 53.072884] IPv6: ADDRCONF(NETDEV_UP): bond0: link is not ready [ 53.079044] 8021q: adding VLAN 0 to HW filter on device bond0 [ 53.117868] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 53.156273] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 53.163482] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 53.197816] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 53.204192] 8021q: adding VLAN 0 to HW filter on device team0 [ 53.250641] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 53.438620] ------------[ cut here ]------------ [ 53.443479] usb usb7: BOGUS urb flags, 1 --> 0 [ 53.448366] WARNING: CPU: 0 PID: 6112 at drivers/usb/core/urb.c:503 usb_submit_urb+0x717/0x14e0 [ 53.457189] Kernel panic - not syncing: panic_on_warn set ... [ 53.457189] [ 53.464589] CPU: 0 PID: 6112 Comm: syz-executor0 Not tainted 4.19.0-rc7+ #56 [ 53.471770] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 53.481109] Call Trace: [ 53.483686] dump_stack+0x1c4/0x2b4 [ 53.487307] ? dump_stack_print_info.cold.2+0x52/0x52 [ 53.492491] panic+0x238/0x4e7 [ 53.495675] ? add_taint.cold.5+0x16/0x16 [ 53.499811] ? __warn.cold.8+0x148/0x1ba [ 53.503862] ? __warn.cold.8+0x117/0x1ba [ 53.507911] ? usb_submit_urb+0x717/0x14e0 [ 53.512136] __warn.cold.8+0x163/0x1ba [ 53.516014] ? usb_submit_urb+0x717/0x14e0 [ 53.520243] report_bug+0x254/0x2d0 [ 53.523876] do_error_trap+0x1fc/0x4d0 [ 53.527753] ? math_error+0x3f0/0x3f0 [ 53.531546] ? vprintk_default+0x28/0x30 [ 53.535598] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 53.540470] ? trace_hardirqs_on_caller+0x310/0x310 [ 53.545476] ? printk+0xa7/0xcf [ 53.548744] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 53.553575] do_invalid_op+0x1b/0x20 [ 53.557291] invalid_op+0x14/0x20 [ 53.560788] RIP: 0010:usb_submit_urb+0x717/0x14e0 [ 53.565629] 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 71 71 88 e8 c9 af 4d fc <0f> 0b e8 62 e0 83 fc 48 c7 c6 00 72 71 88 4c 89 f7 e8 a3 e1 83 fc [ 53.584526] RSP: 0018:ffff8801cc107268 EFLAGS: 00010286 [ 53.589879] RAX: 0000000000000000 RBX: ffff8801cee51800 RCX: 0000000000000000 [ 53.597178] RDX: 0000000000000000 RSI: ffffffff81650405 RDI: 0000000000000005 [ 53.604439] RBP: ffff8801cc1072d8 R08: ffff8801cb8b4580 R09: ffffed003b5c3ee2 [ 53.611697] R10: ffffed003b5c3ee2 R11: ffff8801dae1f717 R12: 0000000000000000 [ 53.618962] R13: 0000000000000001 R14: 0000000000000000 R15: ffff8801cd9ed140 [ 53.626250] ? vprintk_func+0x85/0x181 [ 53.630127] ? usb_submit_urb+0x717/0x14e0 [ 53.634358] ? kasan_check_write+0x14/0x20 [ 53.638597] proc_do_submiturb+0x1b7d/0x4020 [ 53.643008] ? wait_for_completion+0x8a0/0x8a0 [ 53.647591] ? __might_fault+0xc1/0x1e0 [ 53.651574] ? free_async+0x540/0x540 [ 53.655386] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 53.660955] ? _copy_from_user+0xdf/0x150 [ 53.665110] proc_submiturb_compat+0x544/0x800 [ 53.669687] ? proc_do_submiturb+0x4020/0x4020 [ 53.674319] ? mark_held_locks+0x130/0x130 [ 53.678567] usbdev_do_ioctl+0x19a2/0x3b50 [ 53.682800] ? processcompl_compat+0x680/0x680 [ 53.687385] ? mntput_no_expire+0x1e6/0xc00 [ 53.691821] ? do_raw_spin_trylock+0x1c0/0x1c0 [ 53.696391] ? mnt_get_count+0x150/0x150 [ 53.700441] ? __sanitizer_cov_trace_switch+0x53/0x90 [ 53.705621] ? drop_futex_key_refs.isra.15+0x6d/0xe0 [ 53.710710] ? futex_wake+0x304/0x760 [ 53.714505] ? shrink_dcache_sb+0x350/0x350 [ 53.718883] ? get_futex_key+0x21b0/0x21b0 [ 53.723221] ? bpf_prog_kallsyms_find+0xde/0x4a0 [ 53.727969] ? lock_downgrade+0x900/0x900 [ 53.732115] ? mark_held_locks+0x130/0x130 [ 53.736337] ? do_futex+0x249/0x26d0 [ 53.740094] ? kasan_check_read+0x11/0x20 [ 53.744245] ? rcu_dynticks_curr_cpu_in_eqs+0x9f/0x160 [ 53.749550] ? rcu_bh_qs+0xc0/0xc0 [ 53.753093] ? unwind_dump+0x190/0x190 [ 53.756970] ? exit_robust_list+0x280/0x280 [ 53.761289] ? kernel_text_address+0x79/0xf0 [ 53.765684] ? __kernel_text_address+0xd/0x40 [ 53.770162] ? unwind_get_return_address+0x61/0xa0 [ 53.775077] ? __save_stack_trace+0x8d/0xf0 [ 53.779391] ? smk_access+0x53b/0x700 [ 53.783178] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 53.788699] ? smack_log+0x423/0x590 [ 53.792403] ? smk_access_entry+0x310/0x310 [ 53.796712] ? smk_tskacc+0x3dd/0x520 [ 53.800504] usbdev_ioctl+0x25/0x30 [ 53.804119] ? usbdev_compat_ioctl+0x30/0x30 [ 53.808519] do_vfs_ioctl+0x1de/0x1720 [ 53.812399] ? ioctl_preallocate+0x300/0x300 [ 53.816793] ? smk_curacc+0x7f/0xa0 [ 53.820410] ? smack_file_ioctl+0x210/0x3c0 [ 53.824717] ? fget_raw+0x20/0x20 [ 53.828163] ? smack_file_lock+0x2e0/0x2e0 [ 53.832407] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 53.837934] ? security_file_ioctl+0x94/0xc0 [ 53.842373] ksys_ioctl+0xa9/0xd0 [ 53.845828] __x64_sys_ioctl+0x73/0xb0 [ 53.849715] do_syscall_64+0x1b9/0x820 [ 53.853595] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 53.858948] ? syscall_return_slowpath+0x5e0/0x5e0 [ 53.864002] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 53.868837] ? trace_hardirqs_on_caller+0x310/0x310 [ 53.873839] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 53.878845] ? prepare_exit_to_usermode+0x291/0x3b0 [ 53.883863] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 53.888700] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 53.893875] RIP: 0033:0x457519 [ 53.897053] 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 [ 53.915941] RSP: 002b:00007ffe42cc38a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 53.923633] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000457519 [ 53.930886] RDX: 0000000020000080 RSI: 00000000802c550a RDI: 0000000000000003 [ 53.938138] RBP: 000000000072bf00 R08: 0000000000000000 R09: 0000000000000000 [ 53.945393] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000020b4914 [ 53.952646] R13: 00000000004bf65f R14: 00000000004cf538 R15: 00000000ffffffff [ 53.960763] Kernel Offset: disabled [ 53.964386] Rebooting in 86400 seconds..