[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 35.599303] audit: type=1800 audit(1539313639.208:25): pid=5656 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 35.625333] audit: type=1800 audit(1539313639.218:26): pid=5656 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 35.647873] audit: type=1800 audit(1539313639.218:27): pid=5656 uid=0 auid=4294967295 ses=4294967295 subj==unconfined 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 '10.128.10.13' (ECDSA) to the list of known hosts. 2018/10/12 03:07:28 parsed 1 programs 2018/10/12 03:07:30 executed programs: 0 syzkaller login: [ 46.503912] IPVS: ftp: loaded support on port[0] = 21 [ 46.685352] bridge0: port 1(bridge_slave_0) entered blocking state [ 46.691985] bridge0: port 1(bridge_slave_0) entered disabled state [ 46.698788] device bridge_slave_0 entered promiscuous mode [ 46.713587] bridge0: port 2(bridge_slave_1) entered blocking state [ 46.720062] bridge0: port 2(bridge_slave_1) entered disabled state [ 46.726835] device bridge_slave_1 entered promiscuous mode [ 46.741262] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 46.756502] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 46.794038] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 46.810217] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 46.878298] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 46.885687] team0: Port device team_slave_0 added [ 46.899013] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 46.906330] team0: Port device team_slave_1 added [ 46.921222] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 46.936930] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 46.953350] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 46.970124] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 47.077956] bridge0: port 2(bridge_slave_1) entered blocking state [ 47.086220] bridge0: port 2(bridge_slave_1) entered forwarding state [ 47.092854] bridge0: port 1(bridge_slave_0) entered blocking state [ 47.099229] bridge0: port 1(bridge_slave_0) entered forwarding state [ 47.471455] IPv6: ADDRCONF(NETDEV_UP): bond0: link is not ready [ 47.478306] 8021q: adding VLAN 0 to HW filter on device bond0 [ 47.517282] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 47.556363] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 47.563733] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 47.604147] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 47.610249] 8021q: adding VLAN 0 to HW filter on device team0 [ 47.639479] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 47.839242] ------------[ cut here ]------------ [ 47.844298] usb usb7: BOGUS urb flags, 1 --> 0 [ 47.851309] WARNING: CPU: 0 PID: 6077 at drivers/usb/core/urb.c:503 usb_submit_urb+0x717/0x14e0 [ 47.862127] Kernel panic - not syncing: panic_on_warn set ... [ 47.862127] [ 47.870955] CPU: 0 PID: 6077 Comm: syz-executor0 Not tainted 4.19.0-rc7+ #279 [ 47.879206] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 47.890697] Call Trace: [ 47.893276] dump_stack+0x1c4/0x2b4 [ 47.896889] ? dump_stack_print_info.cold.2+0x52/0x52 [ 47.902069] panic+0x238/0x4e7 [ 47.905252] ? add_taint.cold.5+0x16/0x16 [ 47.909384] ? __warn.cold.8+0x148/0x1ba [ 47.913430] ? __warn.cold.8+0x117/0x1ba [ 47.917479] ? usb_submit_urb+0x717/0x14e0 [ 47.921799] __warn.cold.8+0x163/0x1ba [ 47.925670] ? usb_submit_urb+0x717/0x14e0 [ 47.929891] report_bug+0x254/0x2d0 [ 47.933500] do_error_trap+0x1fc/0x4d0 [ 47.937377] ? math_error+0x3f0/0x3f0 [ 47.941170] ? vprintk_default+0x28/0x30 [ 47.945220] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 47.950047] ? trace_hardirqs_on_caller+0x310/0x310 [ 47.955044] ? printk+0xa7/0xcf [ 47.958309] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 47.963132] do_invalid_op+0x1b/0x20 [ 47.966840] invalid_op+0x14/0x20 [ 47.970283] RIP: 0010:usb_submit_urb+0x717/0x14e0 [ 47.975107] 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 [ 47.993988] RSP: 0018:ffff8801d2407268 EFLAGS: 00010286 [ 47.999331] RAX: 0000000000000000 RBX: ffff8801d24ae000 RCX: 0000000000000000 [ 48.006584] RDX: 0000000000000000 RSI: ffffffff81650405 RDI: 0000000000000005 [ 48.013939] RBP: ffff8801d24072d8 R08: ffff8801ba2ac6c0 R09: fffffbfff12720fc [ 48.021188] R10: fffffbfff12720fc R11: ffffffff893907e3 R12: 0000000000000000 [ 48.028438] R13: 0000000000000001 R14: 0000000000000000 R15: ffff8801ce1bb980 [ 48.035702] ? vprintk_func+0x85/0x181 [ 48.039580] ? usb_submit_urb+0x717/0x14e0 [ 48.043801] ? kasan_check_write+0x14/0x20 [ 48.048020] proc_do_submiturb+0x1b7d/0x4020 [ 48.052413] ? __might_fault+0xc1/0x1e0 [ 48.056479] ? free_async+0x540/0x540 [ 48.060271] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 48.065794] ? _copy_from_user+0xdf/0x150 [ 48.069925] proc_submiturb_compat+0x544/0x800 [ 48.074489] ? proc_do_submiturb+0x4020/0x4020 [ 48.080291] usbdev_do_ioctl+0x19a2/0x3b50 [ 48.085178] ? processcompl_compat+0x680/0x680 [ 48.089750] ? mntput_no_expire+0x1e6/0xc00 [ 48.094057] ? kasan_check_write+0x14/0x20 [ 48.098275] ? mnt_get_count+0x150/0x150 [ 48.102324] ? drop_futex_key_refs.isra.15+0x6d/0xe0 [ 48.107418] ? futex_wake+0x304/0x760 [ 48.111213] ? shrink_dcache_sb+0x350/0x350 [ 48.115529] ? bpf_prog_kallsyms_find+0xde/0x4a0 [ 48.120269] ? lock_downgrade+0x900/0x900 [ 48.124529] ? mark_held_locks+0x130/0x130 [ 48.128749] ? lock_downgrade+0x900/0x900 [ 48.132886] ? do_futex+0x249/0x26d0 [ 48.136589] ? kasan_check_read+0x11/0x20 [ 48.140725] ? do_raw_spin_unlock+0xa7/0x2f0 [ 48.145382] ? do_raw_spin_trylock+0x1c0/0x1c0 [ 48.149951] ? add_mm_counter_fast+0xd0/0xd0 [ 48.154342] ? _raw_spin_unlock+0x2c/0x50 [ 48.158572] ? __handle_mm_fault+0x9ab/0x53e0 [ 48.163052] ? vmf_insert_mixed_mkwrite+0xa0/0xa0 [ 48.168160] ? save_stack+0xa9/0xd0 [ 48.171782] ? lock_acquire+0x1ed/0x520 [ 48.175742] ? __might_fault+0x12b/0x1e0 [ 48.179787] ? lock_downgrade+0x900/0x900 [ 48.183992] usbdev_ioctl+0x25/0x30 [ 48.187787] ? usbdev_compat_ioctl+0x30/0x30 [ 48.192353] do_vfs_ioctl+0x1de/0x1720 [ 48.196226] ? ioctl_preallocate+0x300/0x300 [ 48.200616] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 48.206145] ? __fget_light+0x2e9/0x430 [ 48.210158] ? fget_raw+0x20/0x20 [ 48.213605] ? _copy_to_user+0xc8/0x110 [ 48.217564] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 48.223084] ? put_timespec64+0x10f/0x1b0 [ 48.227217] ? nsecs_to_jiffies+0x30/0x30 [ 48.231353] ? security_file_ioctl+0x94/0xc0 [ 48.235746] ksys_ioctl+0xa9/0xd0 [ 48.239187] __x64_sys_ioctl+0x73/0xb0 [ 48.243060] do_syscall_64+0x1b9/0x820 [ 48.246932] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 48.252292] ? syscall_return_slowpath+0x5e0/0x5e0 [ 48.257269] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 48.262110] ? trace_hardirqs_on_caller+0x310/0x310 [ 48.267111] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 48.272111] ? prepare_exit_to_usermode+0x291/0x3b0 [ 48.278070] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 48.283167] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 48.288967] RIP: 0033:0x457519 [ 48.292148] 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 [ 48.311135] RSP: 002b:00007ffc3f560488 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 48.318828] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000457519 [ 48.326090] RDX: 0000000020000080 RSI: 00000000802c550a RDI: 0000000000000005 [ 48.333339] RBP: 000000000072bf00 R08: 0000000000000000 R09: 0000000000000000 [ 48.342253] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000002516914 [ 48.349951] R13: 00000000004bf65f R14: 00000000004cf538 R15: 00000000ffffffff [ 48.361269] Kernel Offset: disabled [ 48.366378] Rebooting in 86400 seconds..