[....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[ 12.929057] random: sshd: uninitialized urandom read (32 bytes read) [?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 19.605992] random: sshd: uninitialized urandom read (32 bytes read) [ 20.202335] random: sshd: uninitialized urandom read (32 bytes read) [ 21.137654] random: sshd: uninitialized urandom read (32 bytes read) [ 39.903292] random: sshd: uninitialized urandom read (32 bytes read) Warning: Permanently added '10.128.0.49' (ECDSA) to the list of known hosts. [ 45.369887] random: sshd: uninitialized urandom read (32 bytes read) 2018/07/10 14:11:43 parsed 1 programs [ 46.424439] random: cc1: uninitialized urandom read (8 bytes read) 2018/07/10 14:11:45 executed programs: 0 [ 47.759664] IPVS: Creating netns size=2536 id=1 [ 47.790903] IPVS: Creating netns size=2536 id=2 [ 47.814888] IPVS: Creating netns size=2536 id=3 [ 47.848734] IPVS: Creating netns size=2536 id=4 [ 47.866420] IPVS: Creating netns size=2536 id=5 [ 47.902382] IPVS: Creating netns size=2536 id=6 [ 47.918991] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 47.928688] IPVS: Creating netns size=2536 id=7 [ 47.951575] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 47.970521] IPVS: Creating netns size=2536 id=8 [ 48.062091] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 48.084410] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 48.170120] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 48.185623] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 48.193989] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 48.206728] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 48.222381] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 48.238742] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 48.268381] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 48.292984] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 48.322073] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 48.340575] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 48.355003] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 48.362543] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 48.370339] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 48.377654] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 48.386004] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 48.395452] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 48.403573] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 48.411134] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 48.424029] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 48.449378] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 48.497049] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 48.526108] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 48.537616] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 48.545262] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 48.560745] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 48.570404] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 48.578141] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 48.586458] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 48.597202] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 48.604590] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 48.613862] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 48.622472] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 48.634441] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 48.646980] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 48.669400] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 48.682741] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 48.693477] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 48.713460] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 48.721446] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 48.737678] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 48.764860] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 48.776726] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 48.788292] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 48.797740] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 48.807605] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 48.823287] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 48.832344] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 48.841594] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 48.850422] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 48.860178] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 48.867279] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 48.874853] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 48.883966] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 48.893138] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 48.900536] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 48.909029] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 48.916616] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 48.925499] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 48.932544] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 48.943586] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 48.954745] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 48.962157] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 48.969690] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 48.977216] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 48.985847] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 48.995446] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 49.003117] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 49.015567] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 49.022968] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 49.030358] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 49.039838] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 49.053197] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 49.060596] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 49.073578] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 49.084616] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 49.092005] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 49.774690] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 49.848873] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 49.859441] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 49.866952] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 49.956755] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 50.038990] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 50.054275] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 50.062948] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 50.069555] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 50.144758] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 50.150879] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 50.158064] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 50.170224] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 50.203551] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 50.215740] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 50.257194] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 50.281740] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 50.290929] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 50.300476] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 50.307888] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 50.346140] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 50.352264] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 50.360412] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 50.377935] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 50.388670] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 50.397024] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 50.438445] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 50.446745] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 50.455396] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 50.462031] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 50.469225] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 50.476201] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready 2018/07/10 14:11:50 executed programs: 17 2018/07/10 14:11:55 executed programs: 62 [ 58.642544] ------------[ cut here ]------------ [ 58.647406] WARNING: CPU: 0 PID: 6256 at lib/list_debug.c:59 __list_del_entry+0x148/0x1c0 [ 58.655726] list_del corruption. prev->next should be ffff8801c3a20028, but was ffff8801d9acfb88 [ 58.664639] Kernel panic - not syncing: panic_on_warn set ... [ 58.664639] [ 58.671980] CPU: 0 PID: 6256 Comm: syz-executor5 Not tainted 4.9.111-g03c70fe #58 [ 58.679570] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 58.688902] ffff8801ccfdf450 ffffffff81eb2729 ffffffff83c48980 00000000ffffffff [ 58.696913] 0000000000000000 0000000000000000 000000000000003b ffff8801ccfdf510 [ 58.704920] ffffffff814219f5 0000000041b58ab3 ffffffff843ba8c0 ffffffff81421836 [ 58.712908] Call Trace: [ 58.715481] [] dump_stack+0xc1/0x128 [ 58.720817] [] panic+0x1bf/0x3bc [ 58.725807] [] ? add_taint.cold.6+0x16/0x16 [ 58.731772] [] ? __warn.cold.9+0xa6/0x17f [ 58.737546] [] ? __list_del_entry+0x148/0x1c0 [ 58.743662] [] __warn.cold.9+0xc1/0x17f [ 58.749258] [] warn_slowpath_fmt+0xc2/0x100 [ 58.755209] [] ? __warn+0x50/0x50 [ 58.760301] [] ? _raw_spin_unlock_irqrestore+0x5a/0x70 [ 58.767205] [] ? p9_fd_cancel+0x1c/0xb0 [ 58.772813] [] __list_del_entry+0x148/0x1c0 [ 58.778765] [] list_del+0xd/0x70 [ 58.783755] [] p9_fd_cancel+0x69/0xb0 [ 58.789178] [] p9_client_rpc+0x9e1/0x1140 [ 58.794951] [] ? trace_event_raw_event_9p_client_res+0x270/0x270 [ 58.802714] [] ? add_wait_queue+0x76/0xa0 [ 58.808488] [] ? p9_pollwait+0x83/0x210 [ 58.814099] [] ? p9_conn_create+0x4c0/0x4c0 [ 58.820048] [] ? pipe_poll+0x25c/0x2d0 [ 58.825555] [] ? generic_pipe_buf_confirm+0x10/0x10 [ 58.832197] [] ? p9_fd_poll+0x246/0x310 [ 58.837793] [] ? lockdep_init_map+0x105/0x4f0 [ 58.843909] [] ? prepare_to_wait_event+0x450/0x450 [ 58.850462] [] ? p9_conn_create+0x3c0/0x4c0 [ 58.856406] [] ? parse_opts.part.1+0x320/0x320 [ 58.862607] [] ? __raw_spin_lock_init+0x2d/0x100 [ 58.868990] [] p9_client_create+0x951/0x10a0 [ 58.875024] [] ? p9_client_zc_rpc.constprop.11+0x1020/0x1020 [ 58.882444] [] ? rcu_read_lock_sched_held+0x103/0x120 [ 58.889256] [] ? bdi_register+0xb4/0x570 [ 58.894947] [] ? bdi_init+0x7ae/0xab0 [ 58.900379] [] v9fs_session_init+0x333/0x13a0 [ 58.906513] [] ? _raw_spin_unlock_irqrestore+0x45/0x70 [ 58.913417] [] ? debug_check_no_obj_freed+0x2ec/0x930 [ 58.920231] [] ? v9fs_inode_init_once+0x30/0x30 [ 58.926528] [] ? debug_object_activate+0x4e0/0x4e0 [ 58.933090] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 58.939913] [] ? free_hot_cold_page+0x493/0x840 [ 58.946210] [] ? check_preemption_disabled+0x3b/0x170 [ 58.953038] [] ? kasan_unpoison_shadow+0x35/0x50 [ 58.959417] [] ? kasan_kmalloc+0xc7/0xe0 [ 58.965107] [] ? kmem_cache_alloc_trace+0xfd/0x2b0 [ 58.971663] [] ? v9fs_mount+0x62/0x810 [ 58.977189] [] v9fs_mount+0x7d/0x810 [ 58.982533] [] mount_fs+0x28c/0x370 [ 58.987788] [] vfs_kern_mount.part.29+0xd1/0x3d0 [ 58.994179] [] ? ns_capable_common+0x12a/0x150 [ 59.000390] [] do_mount+0x3c9/0x2740 [ 59.005751] [] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 59.012303] [] ? copy_mount_string+0x40/0x40 [ 59.018340] [] ? copy_mount_options+0x192/0x320 [ 59.024649] [] ? copy_mount_options+0x1a3/0x320 [ 59.030946] [] ? copy_mount_options+0x1e5/0x320 [ 59.037237] [] SyS_mount+0xfe/0x110 [ 59.042490] [] ? copy_mnt_ns+0x8e0/0x8e0 [ 59.048202] [] do_syscall_64+0x1a6/0x490 [ 59.053891] [] entry_SYSCALL_64_after_swapgs+0x5d/0xdb [ 59.061357] Dumping ftrace buffer: [ 59.064912] (ftrace buffer empty) [ 59.068596] Kernel Offset: disabled [ 59.072204] Rebooting in 86400 seconds..