[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 34.652041] audit: type=1800 audit(1539222085.569:25): pid=5686 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 34.677587] audit: type=1800 audit(1539222085.569:26): pid=5686 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 34.701366] audit: type=1800 audit(1539222085.569:27): pid=5686 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 '10.128.0.56' (ECDSA) to the list of known hosts. 2018/10/11 01:41:36 parsed 1 programs 2018/10/11 01:41:38 executed programs: 0 syzkaller login: [ 47.338912] IPVS: ftp: loaded support on port[0] = 21 [ 47.526128] bridge0: port 1(bridge_slave_0) entered blocking state [ 47.532675] bridge0: port 1(bridge_slave_0) entered disabled state [ 47.539723] device bridge_slave_0 entered promiscuous mode [ 47.554720] bridge0: port 2(bridge_slave_1) entered blocking state [ 47.561326] bridge0: port 2(bridge_slave_1) entered disabled state [ 47.568304] device bridge_slave_1 entered promiscuous mode [ 47.582011] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 47.596608] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 47.633883] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 47.651504] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 47.709007] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 47.716367] team0: Port device team_slave_0 added [ 47.730175] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 47.737498] team0: Port device team_slave_1 added [ 47.751025] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 47.766976] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 47.783208] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 47.799537] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 47.906217] bridge0: port 2(bridge_slave_1) entered blocking state [ 47.912578] bridge0: port 2(bridge_slave_1) entered forwarding state [ 47.919179] bridge0: port 1(bridge_slave_0) entered blocking state [ 47.925567] bridge0: port 1(bridge_slave_0) entered forwarding state [ 48.308027] IPv6: ADDRCONF(NETDEV_UP): bond0: link is not ready [ 48.314142] 8021q: adding VLAN 0 to HW filter on device bond0 [ 48.355374] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 48.393987] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 48.401020] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 48.436502] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 48.442570] 8021q: adding VLAN 0 to HW filter on device team0 [ 48.484991] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 48.673378] WARNING: CPU: 1 PID: 6109 at net/bridge/netfilter/ebtables.c:2086 compat_copy_entries+0x1088/0x1500 [ 48.683609] Kernel panic - not syncing: panic_on_warn set ... [ 48.683609] [ 48.690951] CPU: 1 PID: 6109 Comm: syz-executor0 Not tainted 4.19.0-rc7+ #180 [ 48.698198] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 48.707542] Call Trace: [ 48.710128] dump_stack+0x1c4/0x2b4 [ 48.713735] ? dump_stack_print_info.cold.2+0x52/0x52 [ 48.718910] panic+0x238/0x4e7 [ 48.722088] ? add_taint.cold.5+0x16/0x16 [ 48.726218] ? __warn.cold.8+0x148/0x1ba [ 48.730258] ? __warn.cold.8+0x117/0x1ba [ 48.734308] ? compat_copy_entries+0x1088/0x1500 [ 48.739041] __warn.cold.8+0x163/0x1ba [ 48.742908] ? compat_copy_entries+0x1088/0x1500 [ 48.747649] report_bug+0x254/0x2d0 [ 48.751259] do_error_trap+0x1fc/0x4d0 [ 48.755133] ? math_error+0x3f0/0x3f0 [ 48.758914] ? __alloc_pages_slowpath+0x2d80/0x2d80 [ 48.763992] ? lock_downgrade+0x900/0x900 [ 48.768129] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 48.773028] ? trace_hardirqs_on_caller+0x310/0x310 [ 48.778023] ? ___might_sleep+0x1ed/0x300 [ 48.782152] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 48.786975] do_invalid_op+0x1b/0x20 [ 48.790670] invalid_op+0x14/0x20 [ 48.794107] RIP: 0010:compat_copy_entries+0x1088/0x1500 [ 48.799454] 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 [ 48.818339] RSP: 0018:ffff8801cf5c7788 EFLAGS: 00010293 [ 48.823685] RAX: ffff8801ba39e640 RBX: 0000000000000004 RCX: ffffffff86de7a0b [ 48.830937] RDX: 0000000000000000 RSI: ffffffff86de7a18 RDI: 0000000000000005 [ 48.838184] RBP: ffff8801cf5c7910 R08: ffff8801ba39e640 R09: ffffed00396ef5aa [ 48.845432] R10: ffffed00396ef5aa R11: ffff8801cb77ad57 R12: 0000000000000000 [ 48.852685] R13: ffff8801cf5c7970 R14: dffffc0000000000 R15: ffffc90001f7511c [ 48.859944] ? compat_copy_entries+0x107b/0x1500 [ 48.864679] ? compat_copy_entries+0x1088/0x1500 [ 48.869434] ? compat_copy_entries+0x1088/0x1500 [ 48.874204] ? compat_table_info+0x650/0x650 [ 48.878624] ? xt_compat_init_offsets+0x271/0x350 [ 48.883452] ? xt_compat_flush_offsets+0x280/0x280 [ 48.888413] compat_do_replace+0x483/0x8e0 [ 48.892647] ? compat_do_ebt_get_ctl+0x910/0x910 [ 48.897392] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 48.902911] ? cap_capable+0x1f9/0x260 [ 48.906790] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 48.912344] ? ns_capable_common+0x13f/0x170 [ 48.916739] compat_do_ebt_set_ctl+0x2a3/0x31b [ 48.921303] ? compat_do_replace+0x8e0/0x8e0 [ 48.925696] ? mutex_unlock+0xd/0x10 [ 48.929394] ? nf_sockopt_find.constprop.0+0x221/0x290 [ 48.934652] compat_nf_setsockopt+0x9b/0x140 [ 48.939040] ? compat_do_replace+0x8e0/0x8e0 [ 48.943433] compat_ip_setsockopt+0xff/0x140 [ 48.947830] inet_csk_compat_setsockopt+0x97/0x120 [ 48.952740] ? ip_setsockopt+0xf0/0xf0 [ 48.956616] compat_tcp_setsockopt+0x49/0x80 [ 48.961160] compat_sock_common_setsockopt+0xb4/0x150 [ 48.966343] ? tcp_setsockopt+0xe0/0xe0 [ 48.970299] ? sock_common_setsockopt+0xe0/0xe0 [ 48.974949] __compat_sys_setsockopt+0x1b3/0x860 [ 48.979686] ? __compat_sys_getsockopt+0x8a0/0x8a0 [ 48.984598] ? trace_hardirqs_on+0xbd/0x310 [ 48.988912] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 48.994429] ? entry_SYSENTER_compat+0x70/0x7f [ 48.999023] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 49.004472] __ia32_compat_sys_setsockopt+0xbd/0x150 [ 49.009558] do_fast_syscall_32+0x34d/0xfb2 [ 49.013892] ? do_int80_syscall_32+0x890/0x890 [ 49.018473] ? entry_SYSENTER_compat+0x68/0x7f [ 49.023035] ? trace_hardirqs_off_caller+0xbb/0x310 [ 49.028149] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 49.032972] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 49.038053] ? trace_hardirqs_on_caller+0x310/0x310 [ 49.043096] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 49.048097] ? prepare_exit_to_usermode+0x291/0x3b0 [ 49.053093] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 49.057919] entry_SYSENTER_compat+0x70/0x7f [ 49.062304] RIP: 0023:0xf7fb5ca9 [ 49.065649] 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 [ 49.084528] RSP: 002b:00000000ff8ccebc EFLAGS: 00000296 ORIG_RAX: 000000000000016e [ 49.092220] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000000000 [ 49.099473] RDX: 0000000000000080 RSI: 0000000020000100 RDI: 00000000000001a0 [ 49.106721] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 49.113970] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 49.121236] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 49.129322] Kernel Offset: disabled [ 49.132941] Rebooting in 86400 seconds..