[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 36.692003] audit: type=1800 audit(1539337202.692:25): pid=5661 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 36.720518] audit: type=1800 audit(1539337202.692:26): pid=5661 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 36.751451] audit: type=1800 audit(1539337202.692:27): pid=5661 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 '10.128.0.48' (ECDSA) to the list of known hosts. 2018/10/12 09:40:13 parsed 1 programs 2018/10/12 09:40:14 executed programs: 0 syzkaller login: [ 48.897846] IPVS: ftp: loaded support on port[0] = 21 [ 49.082870] bridge0: port 1(bridge_slave_0) entered blocking state [ 49.089289] bridge0: port 1(bridge_slave_0) entered disabled state [ 49.096412] device bridge_slave_0 entered promiscuous mode [ 49.111421] bridge0: port 2(bridge_slave_1) entered blocking state [ 49.117781] bridge0: port 2(bridge_slave_1) entered disabled state [ 49.124724] device bridge_slave_1 entered promiscuous mode [ 49.138929] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 49.154087] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 49.192351] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 49.208716] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 49.266102] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 49.273508] team0: Port device team_slave_0 added [ 49.287849] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 49.295159] team0: Port device team_slave_1 added [ 49.309247] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 49.325250] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 49.340928] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 49.357327] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 49.465238] bridge0: port 2(bridge_slave_1) entered blocking state [ 49.471621] bridge0: port 2(bridge_slave_1) entered forwarding state [ 49.478245] bridge0: port 1(bridge_slave_0) entered blocking state [ 49.484611] bridge0: port 1(bridge_slave_0) entered forwarding state [ 49.864313] IPv6: ADDRCONF(NETDEV_UP): bond0: link is not ready [ 49.870479] 8021q: adding VLAN 0 to HW filter on device bond0 [ 49.910251] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 49.950451] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 49.957300] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 49.997708] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 50.004037] 8021q: adding VLAN 0 to HW filter on device team0 [ 50.039808] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 50.234119] ------------[ cut here ]------------ [ 50.239379] usb usb7: BOGUS urb flags, 1 --> 0 [ 50.245552] WARNING: CPU: 0 PID: 6084 at drivers/usb/core/urb.c:503 usb_submit_urb+0x717/0x14e0 [ 50.254380] Kernel panic - not syncing: panic_on_warn set ... [ 50.254380] [ 50.261734] CPU: 0 PID: 6084 Comm: syz-executor0 Not tainted 4.19.0-rc7+ #56 [ 50.268955] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 50.278345] Call Trace: [ 50.280933] dump_stack+0x1c4/0x2b4 [ 50.284551] ? dump_stack_print_info.cold.2+0x52/0x52 [ 50.289745] panic+0x238/0x4e7 [ 50.292925] ? add_taint.cold.5+0x16/0x16 [ 50.297061] ? __warn.cold.8+0x148/0x1ba [ 50.301103] ? __warn.cold.8+0x117/0x1ba [ 50.305159] ? usb_submit_urb+0x717/0x14e0 [ 50.309388] __warn.cold.8+0x163/0x1ba [ 50.313327] ? usb_submit_urb+0x717/0x14e0 [ 50.317552] report_bug+0x254/0x2d0 [ 50.321168] do_error_trap+0x1fc/0x4d0 [ 50.325054] ? math_error+0x3f0/0x3f0 [ 50.328842] ? vprintk_default+0x28/0x30 [ 50.332933] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 50.337836] ? trace_hardirqs_on_caller+0x310/0x310 [ 50.342856] ? printk+0xa7/0xcf [ 50.346123] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 50.350948] do_invalid_op+0x1b/0x20 [ 50.354645] invalid_op+0x14/0x20 [ 50.358093] RIP: 0010:usb_submit_urb+0x717/0x14e0 [ 50.362928] 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 [ 50.381908] RSP: 0018:ffff8801b98d7268 EFLAGS: 00010286 [ 50.387265] RAX: 0000000000000000 RBX: ffff8801cf275500 RCX: 0000000000000000 [ 50.394522] RDX: 0000000000000000 RSI: ffffffff81650405 RDI: 0000000000000005 [ 50.401900] RBP: ffff8801b98d72d8 R08: ffff8801cc576140 R09: ffffed003b5c4fe8 [ 50.409160] R10: ffffed003b5c4fe8 R11: ffff8801dae27f47 R12: 0000000000000000 [ 50.416421] R13: 0000000000000001 R14: 0000000000000000 R15: ffff8801cdf70500 [ 50.423694] ? vprintk_func+0x85/0x181 [ 50.427581] ? usb_submit_urb+0x717/0x14e0 [ 50.431803] ? kasan_check_write+0x14/0x20 [ 50.436024] proc_do_submiturb+0x1b7d/0x4020 [ 50.440414] ? trace_hardirqs_on+0x310/0x310 [ 50.444913] ? __might_fault+0xc1/0x1e0 [ 50.448874] ? free_async+0x540/0x540 [ 50.452672] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 50.458197] ? _copy_from_user+0xdf/0x150 [ 50.462332] proc_submiturb_compat+0x544/0x800 [ 50.466899] ? proc_do_submiturb+0x4020/0x4020 [ 50.471473] usbdev_do_ioctl+0x19a2/0x3b50 [ 50.475695] ? processcompl_compat+0x680/0x680 [ 50.480420] ? follow_pfn+0x2e0/0x2e0 [ 50.484205] ? do_raw_spin_trylock+0x1c0/0x1c0 [ 50.488781] ? mnt_get_count+0x150/0x150 [ 50.492848] ? do_wp_page+0x76c/0x1390 [ 50.496731] ? drop_futex_key_refs.isra.15+0x6d/0xe0 [ 50.501827] ? futex_wake+0x304/0x760 [ 50.505631] ? kasan_check_read+0x11/0x20 [ 50.509805] ? do_raw_spin_trylock+0x1c0/0x1c0 [ 50.514373] ? __pte_alloc_kernel+0x220/0x220 [ 50.518867] ? mark_held_locks+0x130/0x130 [ 50.523089] ? lock_downgrade+0x900/0x900 [ 50.527231] ? do_futex+0x249/0x26d0 [ 50.530929] ? kasan_check_read+0x11/0x20 [ 50.535060] ? do_raw_spin_unlock+0xa7/0x2f0 [ 50.539517] ? do_raw_spin_trylock+0x1c0/0x1c0 [ 50.544091] ? add_mm_counter_fast+0xd0/0xd0 [ 50.548484] ? _raw_spin_unlock+0x2c/0x50 [ 50.552673] ? __handle_mm_fault+0x9ab/0x53e0 [ 50.557162] ? vmf_insert_mixed_mkwrite+0xa0/0xa0 [ 50.561986] ? smk_access+0x53b/0x700 [ 50.565776] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 50.571305] ? smack_log+0x423/0x590 [ 50.575004] ? smk_access_entry+0x310/0x310 [ 50.579309] ? lock_acquire+0x1ed/0x520 [ 50.583274] ? smk_tskacc+0x3dd/0x520 [ 50.587064] usbdev_ioctl+0x25/0x30 [ 50.590687] ? usbdev_compat_ioctl+0x30/0x30 [ 50.595080] do_vfs_ioctl+0x1de/0x1720 [ 50.599018] ? ioctl_preallocate+0x300/0x300 [ 50.603415] ? smk_curacc+0x7f/0xa0 [ 50.607030] ? smack_file_ioctl+0x210/0x3c0 [ 50.611336] ? fget_raw+0x20/0x20 [ 50.614780] ? smack_file_lock+0x2e0/0x2e0 [ 50.619010] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 50.624537] ? security_file_ioctl+0x94/0xc0 [ 50.628933] ksys_ioctl+0xa9/0xd0 [ 50.632394] __x64_sys_ioctl+0x73/0xb0 [ 50.636276] do_syscall_64+0x1b9/0x820 [ 50.640151] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 50.645503] ? syscall_return_slowpath+0x5e0/0x5e0 [ 50.650414] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 50.655242] ? trace_hardirqs_on_caller+0x310/0x310 [ 50.660243] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 50.665252] ? prepare_exit_to_usermode+0x291/0x3b0 [ 50.670265] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 50.675098] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 50.680275] RIP: 0033:0x457519 [ 50.683497] 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 [ 50.702389] RSP: 002b:00007ffc3f2404a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 50.710101] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000457519 [ 50.717361] RDX: 0000000020000080 RSI: 00000000802c550a RDI: 0000000000000003 [ 50.724617] RBP: 000000000072bf00 R08: 0000000000000000 R09: 0000000000000000 [ 50.731877] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000af3914 [ 50.739147] R13: 00000000004bf65f R14: 00000000004cf538 R15: 00000000ffffffff [ 50.747267] Kernel Offset: disabled [ 50.750893] Rebooting in 86400 seconds..