[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. [ 26.639923] kauditd_printk_skb: 7 callbacks suppressed [ 26.639935] audit: type=1800 audit(1539349852.811:29): pid=5453 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="rc.local" dev="sda1" ino=2432 res=0 [ 26.671801] audit: type=1800 audit(1539349852.811:30): pid=5453 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="rmnologin" dev="sda1" ino=2423 res=0 Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.40' (ECDSA) to the list of known hosts. 2018/10/12 13:12:16 parsed 1 programs 2018/10/12 13:12:18 executed programs: 0 syzkaller login: [ 112.115728] IPVS: ftp: loaded support on port[0] = 21 [ 112.366737] bridge0: port 1(bridge_slave_0) entered blocking state [ 112.373499] bridge0: port 1(bridge_slave_0) entered disabled state [ 112.381477] device bridge_slave_0 entered promiscuous mode [ 112.400827] bridge0: port 2(bridge_slave_1) entered blocking state [ 112.407275] bridge0: port 2(bridge_slave_1) entered disabled state [ 112.414193] device bridge_slave_1 entered promiscuous mode [ 112.432331] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 112.451073] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 112.502912] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 112.524009] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 112.614008] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 112.622371] team0: Port device team_slave_0 added [ 112.639143] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 112.646550] team0: Port device team_slave_1 added [ 112.663554] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 112.681759] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 112.700947] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 112.721632] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 112.866357] bridge0: port 2(bridge_slave_1) entered blocking state [ 112.872990] bridge0: port 2(bridge_slave_1) entered forwarding state [ 112.880030] bridge0: port 1(bridge_slave_0) entered blocking state [ 112.886454] bridge0: port 1(bridge_slave_0) entered forwarding state [ 113.399878] 8021q: adding VLAN 0 to HW filter on device bond0 [ 113.452334] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 113.504862] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 113.511435] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 113.518812] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 113.562933] 8021q: adding VLAN 0 to HW filter on device team0 [ 113.892109] ------------[ cut here ]------------ [ 113.897453] usb usb7: BOGUS urb flags, 1 --> 0 [ 113.902369] WARNING: CPU: 1 PID: 5877 at drivers/usb/core/urb.c:503 usb_submit_urb+0x717/0x14e0 [ 113.911195] Kernel panic - not syncing: panic_on_warn set ... [ 113.911195] [ 113.918727] CPU: 1 PID: 5877 Comm: syz-executor0 Not tainted 4.19.0-rc7-next-20181012+ #93 [ 113.928951] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 113.941654] Call Trace: [ 113.944977] dump_stack+0x244/0x3ab [ 113.949385] ? dump_stack_print_info.cold.2+0x52/0x52 [ 113.954691] panic+0x238/0x4e7 [ 113.957874] ? add_taint.cold.5+0x16/0x16 [ 113.962009] ? __warn.cold.8+0x148/0x1ba [ 113.966062] ? __warn.cold.8+0x117/0x1ba [ 113.970114] ? usb_submit_urb+0x717/0x14e0 [ 113.974337] __warn.cold.8+0x163/0x1ba [ 113.978209] ? rcu_softirq_qs+0x20/0x20 [ 113.982175] ? usb_submit_urb+0x717/0x14e0 [ 113.986397] report_bug+0x254/0x2d0 [ 113.990013] do_error_trap+0x11b/0x200 [ 113.993891] do_invalid_op+0x36/0x40 [ 113.997591] ? usb_submit_urb+0x717/0x14e0 [ 114.001829] invalid_op+0x14/0x20 [ 114.005279] RIP: 0010:usb_submit_urb+0x717/0x14e0 [ 114.010161] Code: 7b fc 48 8b 45 d0 48 8d b8 a0 00 00 00 e8 a1 63 44 ff 45 89 e0 44 89 e9 4c 89 fa 48 89 c6 48 c7 c7 a0 f7 71 88 e8 09 87 45 fc <0f> 0b e8 42 f9 7b fc 48 c7 c6 a0 f8 71 88 4c 89 f7 e8 83 fa 7b fc [ 114.029076] RSP: 0018:ffff8801b9177268 EFLAGS: 00010286 [ 114.034479] RAX: 0000000000000000 RBX: ffff8801d3bd6300 RCX: 0000000000000000 [ 114.041744] RDX: 0000000000000000 RSI: ffffffff8164bc15 RDI: 0000000000000005 [ 114.049003] RBP: ffff8801b91772d8 R08: ffff8801cec30640 R09: ffffed003b5e3eda [ 114.056267] R10: ffffed003b5e3eda R11: ffff8801daf1f6d7 R12: 0000000000000000 [ 114.064491] R13: 0000000000000001 R14: 0000000000000000 R15: ffff8801cd92b5c0 [ 114.071767] ? vprintk_func+0x85/0x181 [ 114.075647] ? usb_submit_urb+0x717/0x14e0 [ 114.079869] ? snoop_urb_data+0x322/0x3a0 [ 114.084014] proc_do_submiturb+0x1b78/0x4010 [ 114.088420] ? find_held_lock+0x36/0x1c0 [ 114.092477] ? __might_fault+0x31/0x1e0 [ 114.096451] ? free_async+0x560/0x560 [ 114.100253] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 114.105895] ? _copy_from_user+0xdf/0x150 [ 114.110039] proc_submiturb_compat+0x544/0x800 [ 114.114608] ? proc_do_submiturb+0x4010/0x4010 [ 114.119202] usbdev_do_ioctl+0x19a2/0x3b50 [ 114.123428] ? parse_usbdevfs_streams+0x4f0/0x4f0 [ 114.128293] ? mntput_no_expire+0x1e6/0xc00 [ 114.132608] ? print_usage_bug+0xc0/0xc0 [ 114.136659] ? print_usage_bug+0xc0/0xc0 [ 114.140710] ? __sanitizer_cov_trace_switch+0x53/0x90 [ 114.145887] ? print_usage_bug+0xc0/0xc0 [ 114.149941] ? zap_class+0x640/0x640 [ 114.153646] ? futex_wake+0x304/0x760 [ 114.157443] ? __lock_acquire+0x678/0x4da0 [ 114.161667] ? find_held_lock+0x36/0x1c0 [ 114.165723] ? mark_held_locks+0x130/0x130 [ 114.169955] ? kasan_check_read+0x11/0x20 [ 114.174200] ? do_raw_spin_unlock+0xa7/0x2f0 [ 114.179112] ? do_raw_spin_trylock+0x270/0x270 [ 114.185181] ? _raw_spin_unlock+0x2c/0x50 [ 114.189331] ? __handle_mm_fault+0xa57/0x5a40 [ 114.193835] ? vmf_insert_mixed_mkwrite+0x40/0x40 [ 114.198681] ? zap_class+0x640/0x640 [ 114.202392] ? zap_class+0x640/0x640 [ 114.206158] ? find_held_lock+0x36/0x1c0 [ 114.211151] ? __might_fault+0x12b/0x1e0 [ 114.215225] ? lock_downgrade+0x900/0x900 [ 114.219386] usbdev_ioctl+0x25/0x30 [ 114.223013] ? usbdev_compat_ioctl+0x30/0x30 [ 114.227430] do_vfs_ioctl+0x1de/0x1720 [ 114.231314] ? ioctl_preallocate+0x300/0x300 [ 114.235716] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 114.241245] ? __fget_light+0x2e9/0x430 [ 114.245211] ? fget_raw+0x20/0x20 [ 114.248660] ? _copy_to_user+0xc8/0x110 [ 114.252631] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 114.258162] ? put_timespec64+0x10f/0x1b0 [ 114.262358] ? nsecs_to_jiffies+0x30/0x30 [ 114.266498] ? do_syscall_64+0x9a/0x820 [ 114.270459] ? do_syscall_64+0x9a/0x820 [ 114.274549] ? lockdep_hardirqs_on+0x3bb/0x5b0 [ 114.279136] ? security_file_ioctl+0x94/0xc0 [ 114.283571] ksys_ioctl+0xa9/0xd0 [ 114.287030] __x64_sys_ioctl+0x73/0xb0 [ 114.290907] do_syscall_64+0x1b9/0x820 [ 114.294787] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 114.300833] ? syscall_return_slowpath+0x5e0/0x5e0 [ 114.306008] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 114.310847] ? trace_hardirqs_on_caller+0x310/0x310 [ 114.315886] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 114.320904] ? prepare_exit_to_usermode+0x291/0x3b0 [ 114.325919] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 114.330768] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 114.335949] RIP: 0033:0x457519 [ 114.339131] 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 [ 114.358022] RSP: 002b:00007ffd96ae52f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 114.365719] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000457519 [ 114.372974] RDX: 0000000020000080 RSI: 00000000802c550a RDI: 0000000000000003 [ 114.380232] RBP: 000000000072bf00 R08: 0000000000000000 R09: 0000000000000000 [ 114.387485] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000001259914 [ 114.394739] R13: 00000000004bf65f R14: 00000000004cf538 R15: 00000000ffffffff [ 114.403050] Kernel Offset: disabled [ 114.406736] Rebooting in 86400 seconds..