[....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[ 20.072952] random: sshd: uninitialized urandom read (32 bytes read) [?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 24.801120] random: sshd: uninitialized urandom read (32 bytes read) [ 25.218459] random: sshd: uninitialized urandom read (32 bytes read) [ 25.966453] random: sshd: uninitialized urandom read (32 bytes read) [ 26.115628] random: sshd: uninitialized urandom read (32 bytes read) Warning: Permanently added '10.128.0.34' (ECDSA) to the list of known hosts. [ 31.537746] random: sshd: uninitialized urandom read (32 bytes read) 2018/06/06 02:30:26 parsed 1 programs 2018/06/06 02:30:26 executed programs: 0 [ 32.041068] IPVS: ftp: loaded support on port[0] = 21 [ 32.161556] bridge0: port 1(bridge_slave_0) entered blocking state [ 32.167992] bridge0: port 1(bridge_slave_0) entered disabled state [ 32.175429] device bridge_slave_0 entered promiscuous mode [ 32.190960] bridge0: port 2(bridge_slave_1) entered blocking state [ 32.197318] bridge0: port 2(bridge_slave_1) entered disabled state [ 32.204410] device bridge_slave_1 entered promiscuous mode [ 32.219787] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 32.234707] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 32.274214] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 32.291238] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 32.349931] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 32.357214] team0: Port device team_slave_0 added [ 32.371124] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 32.378306] team0: Port device team_slave_1 added [ 32.392470] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 32.409482] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 32.425600] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 32.442656] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 32.550833] bridge0: port 2(bridge_slave_1) entered blocking state [ 32.557256] bridge0: port 2(bridge_slave_1) entered forwarding state [ 32.564191] bridge0: port 1(bridge_slave_0) entered blocking state [ 32.570558] bridge0: port 1(bridge_slave_0) entered forwarding state [ 32.957424] IPv6: ADDRCONF(NETDEV_UP): bond0: link is not ready [ 32.963528] 8021q: adding VLAN 0 to HW filter on device bond0 [ 33.004161] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 33.043291] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 33.051192] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 33.087614] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 33.093718] 8021q: adding VLAN 0 to HW filter on device team0 [ 33.106430] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 33.342889] WARNING: CPU: 0 PID: 4747 at net/bridge/netfilter/ebtables.c:2075 compat_copy_entries+0x1082/0x1500 [ 33.353259] Kernel panic - not syncing: panic_on_warn set ... [ 33.353259] [ 33.360632] CPU: 0 PID: 4747 Comm: syz-executor0 Not tainted 4.17.0+ #110 [ 33.367538] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 33.376877] Call Trace: [ 33.379461] dump_stack+0x1b9/0x294 [ 33.383088] ? dump_stack_print_info.cold.2+0x52/0x52 [ 33.388281] ? compat_copy_entries+0xff0/0x1500 [ 33.392933] panic+0x22f/0x4de [ 33.396108] ? add_taint.cold.5+0x16/0x16 [ 33.400239] ? __warn.cold.8+0x148/0x1b3 [ 33.404278] ? __warn.cold.8+0x117/0x1b3 [ 33.408323] ? compat_copy_entries+0x1082/0x1500 [ 33.413071] __warn.cold.8+0x163/0x1b3 [ 33.416940] ? compat_copy_entries+0x1082/0x1500 [ 33.421680] report_bug+0x252/0x2d0 [ 33.425289] do_error_trap+0x1fc/0x4d0 [ 33.429157] ? compat_tcp_setsockopt+0x49/0x80 [ 33.433729] ? math_error+0x3f0/0x3f0 [ 33.437510] ? graph_lock+0x170/0x170 [ 33.441299] ? vmap_page_range_noflush+0x74c/0xa20 [ 33.446212] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 33.451045] do_invalid_op+0x1b/0x20 [ 33.454739] invalid_op+0x14/0x20 [ 33.458192] RIP: 0010:compat_copy_entries+0x1082/0x1500 [ 33.463534] Code: a4 80 d0 fa e9 34 fc ff ff e8 9a 80 d0 fa 8b 9d f8 fe ff ff 31 ff 89 de e8 9b 81 d0 fa 85 db 0f 84 17 fd ff ff e8 7e 80 d0 fa <0f> 0b e9 55 f7 ff ff 41 bd ea ff ff ff e8 6c 80 d0 fa b8 ff ff 37 [ 33.482700] RSP: 0018:ffff8801d707f718 EFLAGS: 00010293 [ 33.488052] RAX: ffff8801d3f10080 RBX: 0000000000000004 RCX: ffffffff86a8d585 [ 33.495305] RDX: 0000000000000000 RSI: ffffffff86a8d592 RDI: 0000000000000005 [ 33.502567] RBP: ffff8801d707f8a0 R08: ffff8801d3f10080 R09: ffffed0039bc1198 [ 33.509817] R10: ffffed0039bc1198 R11: ffff8801cde08cc7 R12: 0000000000000000 [ 33.517069] R13: ffffc90001e8012c R14: dffffc0000000000 R15: ffff8801d707f900 [ 33.524336] ? compat_copy_entries+0x1075/0x1500 [ 33.529079] ? compat_copy_entries+0x1082/0x1500 [ 33.533822] ? compat_copy_entries+0x1082/0x1500 [ 33.538583] ? compat_table_info+0x660/0x660 [ 33.542982] ? xt_compat_init_offsets+0x26e/0x340 [ 33.547814] ? xt_compat_flush_offsets+0x270/0x270 [ 33.552744] compat_do_replace+0x483/0x900 [ 33.556960] ? compat_do_ebt_get_ctl+0x910/0x910 [ 33.561713] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 33.567227] ? cap_capable+0x1f9/0x260 [ 33.571107] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 33.576626] ? ns_capable_common+0x13f/0x170 [ 33.581038] compat_do_ebt_set_ctl+0x2ac/0x324 [ 33.585620] ? compat_do_replace+0x900/0x900 [ 33.590015] ? kasan_check_read+0x11/0x20 [ 33.594163] ? mutex_unlock+0xd/0x10 [ 33.597865] ? nf_sockopt_find.constprop.0+0x221/0x290 [ 33.603122] compat_nf_setsockopt+0x9b/0x140 [ 33.607509] ? compat_do_replace+0x900/0x900 [ 33.611901] compat_ip_setsockopt+0xff/0x140 [ 33.616289] compat_udp_setsockopt+0x62/0xa0 [ 33.620676] ? udp_lib_unhash+0x960/0x960 [ 33.624806] compat_ipv6_setsockopt+0xcd/0x210 [ 33.629377] inet_csk_compat_setsockopt+0x97/0x120 [ 33.634290] ? ipv6_setsockopt+0x170/0x170 [ 33.638511] compat_tcp_setsockopt+0x49/0x80 [ 33.642904] compat_sock_common_setsockopt+0xb4/0x150 [ 33.648086] ? tcp_setsockopt+0xe0/0xe0 [ 33.652052] ? sock_common_setsockopt+0xe0/0xe0 [ 33.656706] __compat_sys_setsockopt+0x1b1/0x850 [ 33.661446] ? __compat_sys_getsockopt+0x880/0x880 [ 33.666361] ? __x32_compat_sys_get_robust_list+0x430/0x430 [ 33.672057] ? mm_fault_error+0x380/0x380 [ 33.676190] __ia32_compat_sys_setsockopt+0xbd/0x150 [ 33.681273] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 33.686274] do_fast_syscall_32+0x345/0xf9b [ 33.690576] ? do_int80_syscall_32+0x880/0x880 [ 33.695137] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 33.699875] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 33.705401] ? syscall_return_slowpath+0x30f/0x5c0 [ 33.710325] ? sysret32_from_system_call+0x5/0x46 [ 33.715159] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 33.719993] entry_SYSENTER_compat+0x70/0x7f [ 33.724383] RIP: 0023:0xf7f3acb9 [ 33.727723] Code: 55 08 8b 88 64 cd ff ff 8b 98 68 cd ff ff 89 c8 85 d2 74 02 89 0a 5b 5d c3 8b 04 24 c3 8b 1c 24 c3 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 [ 33.746885] RSP: 002b:00000000ffc459ec EFLAGS: 00000286 ORIG_RAX: 000000000000016e [ 33.754574] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000000000 [ 33.761843] RDX: 0000000000000080 RSI: 0000000020000280 RDI: 00000000000001b0 [ 33.769096] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 33.776349] R10: 0000000000000000 R11: 0000000000000292 R12: 0000000000000000 [ 33.783608] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 33.791583] Dumping ftrace buffer: [ 33.795263] (ftrace buffer empty) [ 33.798951] Kernel Offset: disabled [ 33.802584] Rebooting in 86400 seconds..