[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 36.079162] audit: type=1800 audit(1539207894.911:25): pid=5631 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 36.103374] audit: type=1800 audit(1539207894.911:26): pid=5631 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 36.123455] audit: type=1800 audit(1539207894.911:27): pid=5631 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 '10.128.0.83' (ECDSA) to the list of known hosts. 2018/10/10 21:45:04 parsed 1 programs 2018/10/10 21:45:06 executed programs: 0 syzkaller login: [ 47.718985] IPVS: ftp: loaded support on port[0] = 21 [ 47.907777] bridge0: port 1(bridge_slave_0) entered blocking state [ 47.914340] bridge0: port 1(bridge_slave_0) entered disabled state [ 47.921268] device bridge_slave_0 entered promiscuous mode [ 47.936122] bridge0: port 2(bridge_slave_1) entered blocking state [ 47.942906] bridge0: port 2(bridge_slave_1) entered disabled state [ 47.950099] device bridge_slave_1 entered promiscuous mode [ 47.964452] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 47.980552] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 48.019073] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 48.037012] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 48.095794] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 48.103984] team0: Port device team_slave_0 added [ 48.118242] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 48.125726] team0: Port device team_slave_1 added [ 48.140626] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 48.158889] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 48.175790] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 48.193576] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 48.310999] bridge0: port 2(bridge_slave_1) entered blocking state [ 48.317742] bridge0: port 2(bridge_slave_1) entered forwarding state [ 48.324334] bridge0: port 1(bridge_slave_0) entered blocking state [ 48.331019] bridge0: port 1(bridge_slave_0) entered forwarding state [ 48.721479] IPv6: ADDRCONF(NETDEV_UP): bond0: link is not ready [ 48.727839] 8021q: adding VLAN 0 to HW filter on device bond0 [ 48.768676] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 48.811036] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 48.818174] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 48.860226] 8021q: adding VLAN 0 to HW filter on device team0 [ 49.086946] WARNING: CPU: 1 PID: 6053 at net/bridge/netfilter/ebtables.c:2086 compat_copy_entries+0x1088/0x1500 [ 49.097350] Kernel panic - not syncing: panic_on_warn set ... [ 49.097350] [ 49.104713] CPU: 1 PID: 6053 Comm: syz-executor0 Not tainted 4.19.0-rc7+ #179 [ 49.112133] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 49.121482] Call Trace: [ 49.124074] dump_stack+0x1c4/0x2b4 [ 49.127850] ? dump_stack_print_info.cold.2+0x52/0x52 [ 49.133040] panic+0x238/0x4e7 [ 49.136224] ? add_taint.cold.5+0x16/0x16 [ 49.140369] ? __warn.cold.8+0x148/0x1ba [ 49.144446] ? __warn.cold.8+0x117/0x1ba [ 49.148504] ? compat_copy_entries+0x1088/0x1500 [ 49.153255] __warn.cold.8+0x163/0x1ba [ 49.157135] ? compat_copy_entries+0x1088/0x1500 [ 49.162035] report_bug+0x254/0x2d0 [ 49.165657] do_error_trap+0x1fc/0x4d0 [ 49.169540] ? math_error+0x3f0/0x3f0 [ 49.173334] ? __alloc_pages_slowpath+0x2d80/0x2d80 [ 49.178340] ? lock_downgrade+0x900/0x900 [ 49.182671] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 49.187529] ? trace_hardirqs_on_caller+0x310/0x310 [ 49.192544] ? ___might_sleep+0x1ed/0x300 [ 49.196689] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 49.201657] do_invalid_op+0x1b/0x20 [ 49.205366] invalid_op+0x14/0x20 [ 49.209007] RIP: 0010:compat_copy_entries+0x1088/0x1500 [ 49.214369] 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 [ 49.233483] RSP: 0018:ffff8801bb06f718 EFLAGS: 00010293 [ 49.239934] RAX: ffff8801cdbca5c0 RBX: 0000000000000004 RCX: ffffffff86de7a0b [ 49.247582] RDX: 0000000000000000 RSI: ffffffff86de7a18 RDI: 0000000000000005 [ 49.255006] RBP: ffff8801bb06f8a0 R08: ffff8801cdbca5c0 R09: ffffed00397785aa [ 49.262276] R10: ffffed00397785aa R11: ffff8801cbbc2d57 R12: 0000000000000000 [ 49.269549] R13: ffff8801bb06f900 R14: dffffc0000000000 R15: ffffc90001f65134 [ 49.276831] ? compat_copy_entries+0x107b/0x1500 [ 49.281585] ? compat_copy_entries+0x1088/0x1500 [ 49.286340] ? compat_copy_entries+0x1088/0x1500 [ 49.291104] ? compat_table_info+0x650/0x650 [ 49.295512] ? xt_compat_init_offsets+0x271/0x350 [ 49.300344] ? xt_compat_flush_offsets+0x280/0x280 [ 49.305270] compat_do_replace+0x483/0x8e0 [ 49.309637] ? compat_do_ebt_get_ctl+0x910/0x910 [ 49.314416] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 49.319961] ? cap_capable+0x1f9/0x260 [ 49.323857] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 49.329576] ? ns_capable_common+0x13f/0x170 [ 49.333987] compat_do_ebt_set_ctl+0x2a3/0x31b [ 49.338573] ? compat_do_replace+0x8e0/0x8e0 [ 49.342990] ? mutex_unlock+0xd/0x10 [ 49.346705] ? nf_sockopt_find.constprop.0+0x221/0x290 [ 49.351976] compat_nf_setsockopt+0x9b/0x140 [ 49.356377] ? compat_do_replace+0x8e0/0x8e0 [ 49.360804] compat_ip_setsockopt+0xff/0x140 [ 49.365213] compat_udp_setsockopt+0x62/0xa0 [ 49.369752] ? udp_lib_unhash+0x970/0x970 [ 49.373904] compat_ipv6_setsockopt+0xcd/0x210 [ 49.378492] inet_csk_compat_setsockopt+0x97/0x120 [ 49.383553] ? ipv6_setsockopt+0x170/0x170 [ 49.387796] compat_tcp_setsockopt+0x49/0x80 [ 49.392373] compat_sock_common_setsockopt+0xb4/0x150 [ 49.397732] ? tcp_setsockopt+0xe0/0xe0 [ 49.401704] ? sock_common_setsockopt+0xe0/0xe0 [ 49.406371] __compat_sys_setsockopt+0x1b3/0x860 [ 49.411158] ? __compat_sys_getsockopt+0x8a0/0x8a0 [ 49.416232] ? trace_hardirqs_on+0xbd/0x310 [ 49.420557] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 49.426219] ? entry_SYSENTER_compat+0x70/0x7f [ 49.430809] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 49.436272] __ia32_compat_sys_setsockopt+0xbd/0x150 [ 49.441403] do_fast_syscall_32+0x34d/0xfb2 [ 49.445725] ? do_int80_syscall_32+0x890/0x890 [ 49.450303] ? entry_SYSENTER_compat+0x68/0x7f [ 49.454882] ? trace_hardirqs_off_caller+0xbb/0x310 [ 49.459889] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 49.464723] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 49.469576] ? trace_hardirqs_on_caller+0x310/0x310 [ 49.474596] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 49.479761] ? prepare_exit_to_usermode+0x291/0x3b0 [ 49.484782] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 49.489635] entry_SYSENTER_compat+0x70/0x7f [ 49.494041] RIP: 0023:0xf7fa2ca9 [ 49.497414] 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 [ 49.516530] RSP: 002b:00000000ff8d7aec EFLAGS: 00000292 ORIG_RAX: 000000000000016e [ 49.524241] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000000000 [ 49.531509] RDX: 0000000000000080 RSI: 00000000200001c0 RDI: 0000000000000188 [ 49.539023] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 49.546411] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 49.553689] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 49.562520] Kernel Offset: disabled [ 49.566304] Rebooting in 86400 seconds..