[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 36.144222] audit: type=1800 audit(1539336339.417:25): pid=5667 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 36.162374] audit: type=1800 audit(1539336339.427:26): pid=5667 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 36.218407] audit: type=1800 audit(1539336339.497:27): pid=5667 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 '10.128.10.0' (ECDSA) to the list of known hosts. 2018/10/12 09:25:52 parsed 1 programs 2018/10/12 09:25:53 executed programs: 0 syzkaller login: [ 50.556783] IPVS: ftp: loaded support on port[0] = 21 [ 50.738732] bridge0: port 1(bridge_slave_0) entered blocking state [ 50.745135] bridge0: port 1(bridge_slave_0) entered disabled state [ 50.752167] device bridge_slave_0 entered promiscuous mode [ 50.766681] bridge0: port 2(bridge_slave_1) entered blocking state [ 50.773037] bridge0: port 2(bridge_slave_1) entered disabled state [ 50.780015] device bridge_slave_1 entered promiscuous mode [ 50.794363] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 50.808960] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 50.847118] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 50.862978] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 50.917731] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 50.924768] team0: Port device team_slave_0 added [ 50.938629] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 50.945636] team0: Port device team_slave_1 added [ 50.959274] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 50.979412] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 50.995236] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 51.010877] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 51.113413] bridge0: port 2(bridge_slave_1) entered blocking state [ 51.119775] bridge0: port 2(bridge_slave_1) entered forwarding state [ 51.126402] bridge0: port 1(bridge_slave_0) entered blocking state [ 51.132736] bridge0: port 1(bridge_slave_0) entered forwarding state [ 51.498487] IPv6: ADDRCONF(NETDEV_UP): bond0: link is not ready [ 51.504576] 8021q: adding VLAN 0 to HW filter on device bond0 [ 51.541715] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 51.580259] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 51.588063] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 51.623435] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 51.629719] 8021q: adding VLAN 0 to HW filter on device team0 [ 51.696251] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 51.853983] ------------[ cut here ]------------ [ 51.859197] usb usb7: BOGUS urb flags, 1 --> 0 [ 51.864227] WARNING: CPU: 1 PID: 6090 at drivers/usb/core/urb.c:503 usb_submit_urb+0x717/0x14e0 [ 51.873065] Kernel panic - not syncing: panic_on_warn set ... [ 51.873065] [ 51.880411] CPU: 1 PID: 6090 Comm: syz-executor0 Not tainted 4.19.0-rc7+ #56 [ 51.887572] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 51.896906] Call Trace: [ 51.899477] dump_stack+0x1c4/0x2b4 [ 51.903088] ? dump_stack_print_info.cold.2+0x52/0x52 [ 51.908262] panic+0x238/0x4e7 [ 51.911435] ? add_taint.cold.5+0x16/0x16 [ 51.915567] ? __warn.cold.8+0x148/0x1ba [ 51.919764] ? __warn.cold.8+0x117/0x1ba [ 51.923863] ? usb_submit_urb+0x717/0x14e0 [ 51.928092] __warn.cold.8+0x163/0x1ba [ 51.931968] ? usb_submit_urb+0x717/0x14e0 [ 51.936188] report_bug+0x254/0x2d0 [ 51.939907] do_error_trap+0x1fc/0x4d0 [ 51.943778] ? math_error+0x3f0/0x3f0 [ 51.947582] ? vprintk_default+0x28/0x30 [ 51.951697] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 51.956528] ? trace_hardirqs_on_caller+0x310/0x310 [ 51.961533] ? printk+0xa7/0xcf [ 51.964807] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 51.969894] do_invalid_op+0x1b/0x20 [ 51.973749] invalid_op+0x14/0x20 [ 51.977253] RIP: 0010:usb_submit_urb+0x717/0x14e0 [ 51.982084] 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 [ 52.000965] RSP: 0018:ffff8801cd1cf268 EFLAGS: 00010286 [ 52.006307] RAX: 0000000000000000 RBX: ffff8801d1800700 RCX: 0000000000000000 [ 52.013603] RDX: 0000000000000000 RSI: ffffffff81650405 RDI: 0000000000000005 [ 52.020932] RBP: ffff8801cd1cf2d8 R08: ffff8801cc6d2400 R09: ffffed003b5e3ee2 [ 52.028289] R10: ffffed003b5e3ee2 R11: ffff8801daf1f717 R12: 0000000000000000 [ 52.035538] R13: 0000000000000001 R14: 0000000000000000 R15: ffff8801cd8a96c0 [ 52.042841] ? vprintk_func+0x85/0x181 [ 52.046718] ? usb_submit_urb+0x717/0x14e0 [ 52.050941] ? kasan_check_write+0x14/0x20 [ 52.055164] proc_do_submiturb+0x1b7d/0x4020 [ 52.059570] ? __might_fault+0xc1/0x1e0 [ 52.063527] ? free_async+0x540/0x540 [ 52.067327] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 52.072844] ? _copy_from_user+0xdf/0x150 [ 52.076973] proc_submiturb_compat+0x544/0x800 [ 52.081535] ? proc_do_submiturb+0x4020/0x4020 [ 52.086183] usbdev_do_ioctl+0x19a2/0x3b50 [ 52.090406] ? processcompl_compat+0x680/0x680 [ 52.094971] ? mntput_no_expire+0x1e6/0xc00 [ 52.099281] ? do_raw_spin_trylock+0x1c0/0x1c0 [ 52.103850] ? mnt_get_count+0x150/0x150 [ 52.107898] ? drop_futex_key_refs.isra.15+0x6d/0xe0 [ 52.112988] ? futex_wake+0x304/0x760 [ 52.116774] ? shrink_dcache_sb+0x350/0x350 [ 52.121082] ? bpf_prog_kallsyms_find+0xde/0x4a0 [ 52.125822] ? lock_downgrade+0x900/0x900 [ 52.129995] ? mark_held_locks+0x130/0x130 [ 52.134221] ? lock_downgrade+0x900/0x900 [ 52.138354] ? do_futex+0x249/0x26d0 [ 52.142153] ? kasan_check_read+0x11/0x20 [ 52.146296] ? do_raw_spin_unlock+0xa7/0x2f0 [ 52.150695] ? do_raw_spin_trylock+0x1c0/0x1c0 [ 52.155391] ? add_mm_counter_fast+0xd0/0xd0 [ 52.159792] ? _raw_spin_unlock+0x2c/0x50 [ 52.163928] ? __handle_mm_fault+0x9ab/0x53e0 [ 52.168412] ? vmf_insert_mixed_mkwrite+0xa0/0xa0 [ 52.173242] ? smk_access+0x53b/0x700 [ 52.177031] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 52.182554] ? smack_log+0x423/0x590 [ 52.186251] ? smk_access_entry+0x310/0x310 [ 52.190562] ? lock_acquire+0x1ed/0x520 [ 52.194524] ? smk_tskacc+0x3dd/0x520 [ 52.198322] usbdev_ioctl+0x25/0x30 [ 52.201931] ? usbdev_compat_ioctl+0x30/0x30 [ 52.206323] do_vfs_ioctl+0x1de/0x1720 [ 52.210195] ? ioctl_preallocate+0x300/0x300 [ 52.214624] ? smk_curacc+0x7f/0xa0 [ 52.218240] ? smack_file_ioctl+0x210/0x3c0 [ 52.222542] ? fget_raw+0x20/0x20 [ 52.225992] ? smack_file_lock+0x2e0/0x2e0 [ 52.230220] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 52.235736] ? security_file_ioctl+0x94/0xc0 [ 52.240128] ksys_ioctl+0xa9/0xd0 [ 52.243566] __x64_sys_ioctl+0x73/0xb0 [ 52.247445] do_syscall_64+0x1b9/0x820 [ 52.251322] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 52.256673] ? syscall_return_slowpath+0x5e0/0x5e0 [ 52.261581] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 52.266407] ? trace_hardirqs_on_caller+0x310/0x310 [ 52.271408] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 52.276411] ? prepare_exit_to_usermode+0x291/0x3b0 [ 52.281459] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 52.286298] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 52.291468] RIP: 0033:0x457519 [ 52.294641] 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 [ 52.313521] RSP: 002b:00007ffc886eb308 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 52.321219] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000457519 [ 52.328574] RDX: 0000000020000080 RSI: 00000000802c550a RDI: 0000000000000005 [ 52.335824] RBP: 000000000072bf00 R08: 0000000000000000 R09: 0000000000000000 [ 52.343071] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000002175914 [ 52.350426] R13: 00000000004bf65f R14: 00000000004cf538 R15: 00000000ffffffff [ 52.358501] Kernel Offset: disabled [ 52.362122] Rebooting in 86400 seconds..