[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 36.591567] audit: type=1800 audit(1539227853.240:25): pid=5672 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 36.619613] audit: type=1800 audit(1539227853.250:26): pid=5672 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 36.644932] audit: type=1800 audit(1539227853.250:27): pid=5672 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 '10.128.0.23' (ECDSA) to the list of known hosts. 2018/10/11 03:17:44 parsed 1 programs 2018/10/11 03:17:46 executed programs: 0 syzkaller login: [ 49.577603] IPVS: ftp: loaded support on port[0] = 21 [ 49.762946] bridge0: port 1(bridge_slave_0) entered blocking state [ 49.769545] bridge0: port 1(bridge_slave_0) entered disabled state [ 49.776578] device bridge_slave_0 entered promiscuous mode [ 49.790655] bridge0: port 2(bridge_slave_1) entered blocking state [ 49.797246] bridge0: port 2(bridge_slave_1) entered disabled state [ 49.804393] device bridge_slave_1 entered promiscuous mode [ 49.819080] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 49.834352] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 49.872113] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 49.888609] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 49.945554] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 49.952670] team0: Port device team_slave_0 added [ 49.965991] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 49.972977] team0: Port device team_slave_1 added [ 49.986480] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 50.001878] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 50.018051] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 50.034257] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 50.138871] bridge0: port 2(bridge_slave_1) entered blocking state [ 50.145236] bridge0: port 2(bridge_slave_1) entered forwarding state [ 50.151876] bridge0: port 1(bridge_slave_0) entered blocking state [ 50.158275] bridge0: port 1(bridge_slave_0) entered forwarding state [ 50.527368] IPv6: ADDRCONF(NETDEV_UP): bond0: link is not ready [ 50.533442] 8021q: adding VLAN 0 to HW filter on device bond0 [ 50.572165] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 50.611617] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 50.619018] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 50.657170] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 50.663223] 8021q: adding VLAN 0 to HW filter on device team0 [ 50.714086] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 50.893371] WARNING: CPU: 0 PID: 6093 at net/bridge/netfilter/ebtables.c:2086 compat_copy_entries+0x1088/0x1500 [ 50.903623] Kernel panic - not syncing: panic_on_warn set ... [ 50.903623] [ 50.911013] CPU: 0 PID: 6093 Comm: syz-executor0 Not tainted 4.19.0-rc7+ #180 [ 50.918264] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 50.927598] Call Trace: [ 50.930173] dump_stack+0x1c4/0x2b4 [ 50.933784] ? dump_stack_print_info.cold.2+0x52/0x52 [ 50.938961] panic+0x238/0x4e7 [ 50.942141] ? add_taint.cold.5+0x16/0x16 [ 50.946273] ? __warn.cold.8+0x148/0x1ba [ 50.950316] ? __warn.cold.8+0x117/0x1ba [ 50.954362] ? compat_copy_entries+0x1088/0x1500 [ 50.959099] __warn.cold.8+0x163/0x1ba [ 50.962974] ? kasan_check_write+0x14/0x20 [ 50.967202] ? compat_copy_entries+0x1088/0x1500 [ 50.971940] report_bug+0x254/0x2d0 [ 50.975551] do_error_trap+0x1fc/0x4d0 [ 50.979424] ? math_error+0x3f0/0x3f0 [ 50.983206] ? __alloc_pages_slowpath+0x2d80/0x2d80 [ 50.988209] ? lock_downgrade+0x900/0x900 [ 50.992341] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 50.997172] ? trace_hardirqs_on_caller+0x310/0x310 [ 51.002185] ? ___might_sleep+0x1ed/0x300 [ 51.006316] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 51.011148] do_invalid_op+0x1b/0x20 [ 51.014850] invalid_op+0x14/0x20 [ 51.018313] RIP: 0010:compat_copy_entries+0x1088/0x1500 [ 51.023668] Code: 9e 5b a0 fa e9 31 fc ff ff e8 94 5b a0 fa 8b 9d f8 fe ff ff 31 ff 89 de e8 95 5c a0 fa 85 db 0f 84 14 fd ff ff e8 78 5b a0 fa <0f> 0b e9 51 f7 ff ff 41 bc ea ff ff ff e8 66 5b a0 fa b8 ff ff 37 [ 51.042566] RSP: 0018:ffff8801ba0677c8 EFLAGS: 00010293 [ 51.047910] RAX: ffff8801b9c70080 RBX: 0000000000000004 RCX: ffffffff86de7a0b [ 51.055169] RDX: 0000000000000000 RSI: ffffffff86de7a18 RDI: 0000000000000005 [ 51.062421] RBP: ffff8801ba067950 R08: ffff8801b9c70080 R09: ffffed00397719aa [ 51.069670] R10: ffffed00397719aa R11: ffff8801cbb8cd57 R12: 0000000000000000 [ 51.076934] R13: ffff8801ba0679b0 R14: dffffc0000000000 R15: ffffc90001f8510c [ 51.084193] ? compat_copy_entries+0x107b/0x1500 [ 51.088931] ? compat_copy_entries+0x1088/0x1500 [ 51.093684] ? compat_copy_entries+0x1088/0x1500 [ 51.098439] ? compat_table_info+0x650/0x650 [ 51.102830] ? xt_compat_init_offsets+0x271/0x350 [ 51.107689] ? xt_compat_flush_offsets+0x280/0x280 [ 51.112617] compat_do_replace+0x483/0x8e0 [ 51.116850] ? compat_do_ebt_get_ctl+0x910/0x910 [ 51.121596] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 51.127113] ? cap_capable+0x1f9/0x260 [ 51.130989] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 51.136508] ? ns_capable_common+0x13f/0x170 [ 51.140911] compat_do_ebt_set_ctl+0x2a3/0x31b [ 51.145476] ? compat_do_replace+0x8e0/0x8e0 [ 51.149876] ? mutex_unlock+0xd/0x10 [ 51.153576] ? nf_sockopt_find.constprop.0+0x221/0x290 [ 51.158847] compat_nf_setsockopt+0x9b/0x140 [ 51.163244] ? compat_do_replace+0x8e0/0x8e0 [ 51.167653] compat_ip_setsockopt+0xff/0x140 [ 51.172043] compat_udp_setsockopt+0x62/0xa0 [ 51.176443] compat_sock_common_setsockopt+0xb4/0x150 [ 51.181615] ? udp_lib_unhash+0x970/0x970 [ 51.185749] ? sock_common_setsockopt+0xe0/0xe0 [ 51.190412] __compat_sys_setsockopt+0x1b3/0x860 [ 51.195164] ? __compat_sys_getsockopt+0x8a0/0x8a0 [ 51.200081] ? trace_hardirqs_on+0xbd/0x310 [ 51.204387] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 51.209919] ? entry_SYSENTER_compat+0x70/0x7f [ 51.214483] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 51.219916] __ia32_compat_sys_setsockopt+0xbd/0x150 [ 51.225021] do_fast_syscall_32+0x34d/0xfb2 [ 51.229326] ? do_int80_syscall_32+0x890/0x890 [ 51.233932] ? entry_SYSENTER_compat+0x68/0x7f [ 51.238508] ? trace_hardirqs_off_caller+0xbb/0x310 [ 51.243506] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 51.248339] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 51.253177] ? trace_hardirqs_on_caller+0x310/0x310 [ 51.258174] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 51.263202] ? prepare_exit_to_usermode+0x291/0x3b0 [ 51.268218] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 51.273064] entry_SYSENTER_compat+0x70/0x7f [ 51.277453] RIP: 0023:0xf7fd4ca9 [ 51.280804] Code: 85 d2 74 02 89 0a 5b 5d c3 8b 04 24 c3 8b 0c 24 c3 8b 1c 24 c3 90 90 90 90 90 90 90 90 90 90 90 90 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 eb 0d 90 90 90 90 90 90 90 90 90 90 90 90 [ 51.299688] RSP: 002b:00000000fff73b2c EFLAGS: 00000296 ORIG_RAX: 000000000000016e [ 51.307395] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000000000 [ 51.314647] RDX: 0000000000000080 RSI: 0000000020000200 RDI: 00000000000001c0 [ 51.321907] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 51.329155] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 51.336405] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 51.344573] Kernel Offset: disabled [ 51.348215] Rebooting in 86400 seconds..