[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 31.352369] audit: type=1800 audit(1539232950.567:25): pid=5608 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 31.371440] audit: type=1800 audit(1539232950.567:26): pid=5608 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 31.395530] audit: type=1800 audit(1539232950.567:27): pid=5608 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 '10.128.0.95' (ECDSA) to the list of known hosts. 2018/10/11 04:42:41 parsed 1 programs 2018/10/11 04:42:42 executed programs: 0 syzkaller login: [ 43.727843] IPVS: ftp: loaded support on port[0] = 21 [ 43.898442] bridge0: port 1(bridge_slave_0) entered blocking state [ 43.905131] bridge0: port 1(bridge_slave_0) entered disabled state [ 43.912307] device bridge_slave_0 entered promiscuous mode [ 43.926260] bridge0: port 2(bridge_slave_1) entered blocking state [ 43.932764] bridge0: port 2(bridge_slave_1) entered disabled state [ 43.939529] device bridge_slave_1 entered promiscuous mode [ 43.952937] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 43.967535] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 44.002054] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 44.018114] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 44.068484] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 44.076061] team0: Port device team_slave_0 added [ 44.088462] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 44.095808] team0: Port device team_slave_1 added [ 44.108400] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 44.128276] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 44.142935] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 44.157865] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 44.251328] bridge0: port 2(bridge_slave_1) entered blocking state [ 44.257929] bridge0: port 2(bridge_slave_1) entered forwarding state [ 44.264519] bridge0: port 1(bridge_slave_0) entered blocking state [ 44.270869] bridge0: port 1(bridge_slave_0) entered forwarding state [ 44.599464] IPv6: ADDRCONF(NETDEV_UP): bond0: link is not ready [ 44.605579] 8021q: adding VLAN 0 to HW filter on device bond0 [ 44.641623] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 44.677994] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 44.685730] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 44.717293] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 44.723874] 8021q: adding VLAN 0 to HW filter on device team0 [ 44.850234] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 44.927566] WARNING: CPU: 0 PID: 6033 at net/bridge/netfilter/ebtables.c:2086 compat_copy_entries+0x1088/0x1500 [ 44.937914] Kernel panic - not syncing: panic_on_warn set ... [ 44.937914] [ 44.945295] CPU: 0 PID: 6033 Comm: syz-executor0 Not tainted 4.19.0-rc7+ #180 [ 44.952560] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 44.962127] Call Trace: [ 44.964913] dump_stack+0x1c4/0x2b4 [ 44.968521] ? dump_stack_print_info.cold.2+0x52/0x52 [ 44.973689] panic+0x238/0x4e7 [ 44.976860] ? add_taint.cold.5+0x16/0x16 [ 44.980983] ? __warn.cold.8+0x148/0x1ba [ 44.985038] ? __warn.cold.8+0x117/0x1ba [ 44.989075] ? compat_copy_entries+0x1088/0x1500 [ 44.993808] __warn.cold.8+0x163/0x1ba [ 44.997680] ? compat_copy_entries+0x1088/0x1500 [ 45.002416] report_bug+0x254/0x2d0 [ 45.006047] do_error_trap+0x1fc/0x4d0 [ 45.009917] ? math_error+0x3f0/0x3f0 [ 45.013852] ? __alloc_pages_slowpath+0x2d80/0x2d80 [ 45.018851] ? lock_downgrade+0x900/0x900 [ 45.022979] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 45.027815] ? trace_hardirqs_on_caller+0x310/0x310 [ 45.032823] ? ___might_sleep+0x1ed/0x300 [ 45.036961] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 45.041787] do_invalid_op+0x1b/0x20 [ 45.045573] invalid_op+0x14/0x20 [ 45.049008] RIP: 0010:compat_copy_entries+0x1088/0x1500 [ 45.054355] 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 [ 45.073235] RSP: 0018:ffff8801ba127788 EFLAGS: 00010293 [ 45.078578] RAX: ffff8801ce67e380 RBX: 0000000000000004 RCX: ffffffff86de7a0b [ 45.085823] RDX: 0000000000000000 RSI: ffffffff86de7a18 RDI: 0000000000000005 [ 45.093068] RBP: ffff8801ba127910 R08: ffff8801ce67e380 R09: ffffed0039624daa [ 45.100315] R10: ffffed0039624daa R11: ffff8801cb126d57 R12: 0000000000000000 [ 45.107882] R13: ffff8801ba127970 R14: dffffc0000000000 R15: ffffc90001f8d11c [ 45.115166] ? compat_copy_entries+0x107b/0x1500 [ 45.119906] ? compat_copy_entries+0x1088/0x1500 [ 45.124643] ? compat_copy_entries+0x1088/0x1500 [ 45.129378] ? compat_table_info+0x650/0x650 [ 45.133761] ? xt_compat_init_offsets+0x271/0x350 [ 45.138579] ? xt_compat_flush_offsets+0x280/0x280 [ 45.143502] compat_do_replace+0x483/0x8e0 [ 45.147739] ? compat_do_ebt_get_ctl+0x910/0x910 [ 45.152477] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 45.158156] ? cap_capable+0x1f9/0x260 [ 45.162033] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 45.167576] ? ns_capable_common+0x13f/0x170 [ 45.171969] compat_do_ebt_set_ctl+0x2a3/0x31b [ 45.176533] ? compat_do_replace+0x8e0/0x8e0 [ 45.181290] ? mutex_unlock+0xd/0x10 [ 45.185221] ? nf_sockopt_find.constprop.0+0x221/0x290 [ 45.190476] compat_nf_setsockopt+0x9b/0x140 [ 45.194863] ? compat_do_replace+0x8e0/0x8e0 [ 45.199265] compat_ip_setsockopt+0xff/0x140 [ 45.203808] inet_csk_compat_setsockopt+0x97/0x120 [ 45.208722] ? ip_setsockopt+0xf0/0xf0 [ 45.212589] compat_tcp_setsockopt+0x49/0x80 [ 45.216979] compat_sock_common_setsockopt+0xb4/0x150 [ 45.222157] ? tcp_setsockopt+0xe0/0xe0 [ 45.226124] ? sock_common_setsockopt+0xe0/0xe0 [ 45.230803] __compat_sys_setsockopt+0x1b3/0x860 [ 45.235538] ? __compat_sys_getsockopt+0x8a0/0x8a0 [ 45.240470] ? trace_hardirqs_on+0xbd/0x310 [ 45.244810] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 45.250441] ? entry_SYSENTER_compat+0x70/0x7f [ 45.255015] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 45.260454] __ia32_compat_sys_setsockopt+0xbd/0x150 [ 45.265797] do_fast_syscall_32+0x34d/0xfb2 [ 45.270113] ? do_int80_syscall_32+0x890/0x890 [ 45.274801] ? entry_SYSENTER_compat+0x68/0x7f [ 45.279392] ? trace_hardirqs_off_caller+0xbb/0x310 [ 45.284399] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 45.289220] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 45.294060] ? trace_hardirqs_on_caller+0x310/0x310 [ 45.299063] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 45.304063] ? prepare_exit_to_usermode+0x291/0x3b0 [ 45.309064] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 45.313894] entry_SYSENTER_compat+0x70/0x7f [ 45.318279] RIP: 0023:0xf7f7aca9 [ 45.321627] 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 [ 45.340510] RSP: 002b:00000000ffca691c EFLAGS: 00000296 ORIG_RAX: 000000000000016e [ 45.348199] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000000000 [ 45.355449] RDX: 0000000000000080 RSI: 0000000020000100 RDI: 00000000000001a0 [ 45.362715] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 45.369976] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 45.377335] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 45.385922] Kernel Offset: disabled [ 45.389596] Rebooting in 86400 seconds..