[....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[ 19.527243] random: sshd: uninitialized urandom read (32 bytes read) [?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 22.954830] random: sshd: uninitialized urandom read (32 bytes read) [ 23.460568] random: sshd: uninitialized urandom read (32 bytes read) [ 24.282736] random: sshd: uninitialized urandom read (32 bytes read) [ 24.433685] random: sshd: uninitialized urandom read (32 bytes read) Warning: Permanently added '10.128.0.58' (ECDSA) to the list of known hosts. [ 29.823804] random: sshd: uninitialized urandom read (32 bytes read) 2018/06/09 14:22:55 parsed 1 programs [ 30.999130] random: cc1: uninitialized urandom read (8 bytes read) 2018/06/09 14:22:57 executed programs: 0 [ 32.306258] IPVS: ftp: loaded support on port[0] = 21 [ 32.425302] bridge0: port 1(bridge_slave_0) entered blocking state [ 32.431753] bridge0: port 1(bridge_slave_0) entered disabled state [ 32.439048] device bridge_slave_0 entered promiscuous mode [ 32.454541] bridge0: port 2(bridge_slave_1) entered blocking state [ 32.460912] bridge0: port 2(bridge_slave_1) entered disabled state [ 32.467916] device bridge_slave_1 entered promiscuous mode [ 32.483091] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 32.499195] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 32.537660] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 32.555374] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 32.614570] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 32.621829] team0: Port device team_slave_0 added [ 32.635751] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 32.642800] team0: Port device team_slave_1 added [ 32.656965] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 32.674650] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 32.690975] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 32.707308] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 32.818024] bridge0: port 2(bridge_slave_1) entered blocking state [ 32.824490] bridge0: port 2(bridge_slave_1) entered forwarding state [ 32.831438] bridge0: port 1(bridge_slave_0) entered blocking state [ 32.837809] bridge0: port 1(bridge_slave_0) entered forwarding state [ 33.219178] IPv6: ADDRCONF(NETDEV_UP): bond0: link is not ready [ 33.225401] 8021q: adding VLAN 0 to HW filter on device bond0 [ 33.265590] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 33.305174] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 33.312785] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 33.348476] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 33.354591] 8021q: adding VLAN 0 to HW filter on device team0 [ 33.371494] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 33.594829] WARNING: CPU: 1 PID: 4796 at net/bridge/netfilter/ebtables.c:2070 compat_copy_entries+0x1082/0x1500 [ 33.606135] Kernel panic - not syncing: panic_on_warn set ... [ 33.606135] [ 33.613496] CPU: 1 PID: 4796 Comm: syz-executor0 Not tainted 4.17.0+ #117 [ 33.620410] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 33.629781] Call Trace: [ 33.632374] dump_stack+0x1b9/0x294 [ 33.635995] ? dump_stack_print_info.cold.2+0x52/0x52 [ 33.641176] ? compat_copy_entries+0x1060/0x1500 [ 33.645915] panic+0x22f/0x4de [ 33.649091] ? add_taint.cold.5+0x16/0x16 [ 33.653224] ? __warn.cold.8+0x148/0x1b3 [ 33.657278] ? __warn.cold.8+0x117/0x1b3 [ 33.661324] ? compat_copy_entries+0x1082/0x1500 [ 33.666063] __warn.cold.8+0x163/0x1b3 [ 33.669932] ? compat_copy_entries+0x1082/0x1500 [ 33.674679] report_bug+0x252/0x2d0 [ 33.678291] do_error_trap+0x1fc/0x4d0 [ 33.682160] ? compat_tcp_setsockopt+0x49/0x80 [ 33.686733] ? math_error+0x3f0/0x3f0 [ 33.690516] ? graph_lock+0x170/0x170 [ 33.694321] ? vmap_page_range_noflush+0x74c/0xa20 [ 33.699235] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 33.704061] do_invalid_op+0x1b/0x20 [ 33.707758] invalid_op+0x14/0x20 [ 33.711194] RIP: 0010:compat_copy_entries+0x1082/0x1500 [ 33.716531] Code: 64 2b c1 fa e9 34 fc ff ff e8 5a 2b c1 fa 8b 9d f8 fe ff ff 31 ff 89 de e8 5b 2c c1 fa 85 db 0f 84 17 fd ff ff e8 3e 2b c1 fa <0f> 0b e9 55 f7 ff ff 41 bd ea ff ff ff e8 2c 2b c1 fa b8 ff ff 37 [ 33.735699] RSP: 0018:ffff8801d337f718 EFLAGS: 00010293 [ 33.741071] RAX: ffff8801ab268680 RBX: 0000000000000004 RCX: ffffffff86b91215 [ 33.748334] RDX: 0000000000000000 RSI: ffffffff86b91222 RDI: 0000000000000005 [ 33.755583] RBP: ffff8801d337f8a0 R08: ffff8801ab268680 R09: ffffed0039bd8dc0 [ 33.762831] R10: ffffed0039bd8dc0 R11: ffff8801cdec6e07 R12: 0000000000000000 [ 33.770096] R13: ffffc90001e4c12c R14: dffffc0000000000 R15: ffff8801d337f900 [ 33.777363] ? compat_copy_entries+0x1075/0x1500 [ 33.782108] ? compat_copy_entries+0x1082/0x1500 [ 33.786854] ? compat_copy_entries+0x1082/0x1500 [ 33.791600] ? compat_table_info+0x660/0x660 [ 33.795991] ? xt_compat_init_offsets+0x26e/0x340 [ 33.800817] ? xt_compat_flush_offsets+0x270/0x270 [ 33.805731] compat_do_replace+0x483/0x900 [ 33.809948] ? compat_do_ebt_get_ctl+0x910/0x910 [ 33.814700] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 33.820223] ? cap_capable+0x1f9/0x260 [ 33.824106] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 33.829628] ? ns_capable_common+0x13f/0x170 [ 33.834030] compat_do_ebt_set_ctl+0x2ac/0x324 [ 33.838600] ? compat_do_replace+0x900/0x900 [ 33.842992] ? kasan_check_read+0x11/0x20 [ 33.847303] ? mutex_unlock+0xd/0x10 [ 33.851029] ? nf_sockopt_find.constprop.0+0x221/0x290 [ 33.856291] compat_nf_setsockopt+0x9b/0x140 [ 33.860691] ? compat_do_replace+0x900/0x900 [ 33.865098] compat_ip_setsockopt+0xff/0x140 [ 33.869517] compat_udp_setsockopt+0x62/0xa0 [ 33.873916] ? udp_lib_unhash+0x960/0x960 [ 33.878050] compat_ipv6_setsockopt+0xcd/0x210 [ 33.882623] inet_csk_compat_setsockopt+0x97/0x120 [ 33.887533] ? ipv6_setsockopt+0x170/0x170 [ 33.891750] compat_tcp_setsockopt+0x49/0x80 [ 33.896153] compat_sock_common_setsockopt+0xb4/0x150 [ 33.901320] ? tcp_setsockopt+0xe0/0xe0 [ 33.905283] ? sock_common_setsockopt+0xe0/0xe0 [ 33.909951] __compat_sys_setsockopt+0x1b1/0x850 [ 33.914689] ? __compat_sys_getsockopt+0x880/0x880 [ 33.919612] ? __x32_compat_sys_get_robust_list+0x430/0x430 [ 33.925319] ? mm_fault_error+0x380/0x380 [ 33.929451] __ia32_compat_sys_setsockopt+0xbd/0x150 [ 33.934535] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 33.939543] do_fast_syscall_32+0x345/0xf9b [ 33.943862] ? do_int80_syscall_32+0x880/0x880 [ 33.948425] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 33.953169] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 33.958688] ? syscall_return_slowpath+0x30f/0x5c0 [ 33.963605] ? sysret32_from_system_call+0x5/0x46 [ 33.968431] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 33.973257] entry_SYSENTER_compat+0x70/0x7f [ 33.977644] RIP: 0023:0xf7fdccb9 [ 33.980998] 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 [ 34.000179] RSP: 002b:00000000ffe7630c EFLAGS: 00000282 ORIG_RAX: 000000000000016e [ 34.007873] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000000000 [ 34.015124] RDX: 0000000000000080 RSI: 0000000020000280 RDI: 00000000000001b0 [ 34.022386] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 34.029635] R10: 0000000000000000 R11: 0000000000000296 R12: 0000000000000000 [ 34.036884] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 34.044891] Dumping ftrace buffer: [ 34.048588] (ftrace buffer empty) [ 34.052289] Kernel Offset: disabled [ 34.055895] Rebooting in 86400 seconds..