INIT: Entering runlevel: 2 [info] Using makefile-style concurrent boot in runlevel 2. [....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [....] 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 '10.128.0.50' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 42.148863] FAULT_INJECTION: forcing a failure. [ 42.148863] name failslab, interval 1, probability 0, space 0, times 1 [ 42.160267] CPU: 1 PID: 4530 Comm: syz-executor240 Not tainted 4.16.0+ #87 [ 42.167292] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 42.176754] Call Trace: [ 42.179366] dump_stack+0x185/0x1d0 [ 42.183014] should_fail+0x87b/0xab0 [ 42.186743] should_failslab+0x279/0x2a0 [ 42.190846] __kmalloc+0xc2/0x350 [ 42.194337] ? __msan_metadata_ptr_for_store_1+0x13/0x20 [ 42.199821] ? rpc_alloc_iostats+0x78/0x3f0 [ 42.204141] ? rpc_alloc_iostats+0x2b/0x3f0 [ 42.208488] rpc_alloc_iostats+0x78/0x3f0 [ 42.212662] rpc_new_client+0x819/0x1360 [ 42.216758] ? xprt_switch_alloc+0x4d2/0x660 [ 42.221173] rpc_create_xprt+0x3a4/0xcc0 [ 42.225271] ? __msan_metadata_ptr_for_store_8+0x13/0x20 [ 42.230751] ? xprt_create_transport+0x7cb/0xc90 [ 42.235540] rpc_create+0xa62/0xb10 [ 42.239237] ? rpcb_getport_async+0x933/0x1540 [ 42.243850] rpcb_getport_async+0x9d0/0x1540 [ 42.248318] ? mempool_free+0x430/0x430 [ 42.252344] ? mempool_alloc+0x183/0x7e0 [ 42.256443] ? __msan_metadata_ptr_for_store_1+0x13/0x20 [ 42.261919] ? rpcb_v4_register+0xc20/0xc20 [ 42.266277] call_bind+0x1ad/0x280 [ 42.269821] __rpc_execute+0x58c/0x1530 [ 42.273804] ? call_allocate+0x800/0x800 [ 42.277874] rpc_execute+0x43b/0x6d0 [ 42.281629] rpc_run_task+0x9c9/0xc40 [ 42.285474] rpc_create_xprt+0x5d1/0xcc0 [ 42.289585] rpc_create+0xa62/0xb10 [ 42.293272] ? nfs_create_rpc_client+0x4b5/0x800 [ 42.298109] nfs_create_rpc_client+0x55e/0x800 [ 42.302764] nfs_init_client+0xc2/0x200 [ 42.306773] ? nfs_init_server_rpcclient+0x450/0x450 [ 42.311899] nfs_get_client+0x1577/0x1780 [ 42.316102] ? __msan_metadata_ptr_for_load_4+0x10/0x20 [ 42.321519] nfs_create_server+0xb60/0x3310 [ 42.325893] ? __msan_metadata_ptr_for_store_1+0x13/0x20 [ 42.331387] ? nfs_free_server+0x2f0/0x2f0 [ 42.335650] nfs_try_mount+0x48a/0x1510 [ 42.339647] ? kmsan_memcpy_origins+0xf1/0x170 [ 42.344252] ? get_nfs_version+0x48b/0x550 [ 42.348514] ? get_nfs_version+0x4c2/0x550 [ 42.352791] ? nfs_auth_info_match+0x190/0x190 [ 42.357399] nfs_fs_mount+0x3872/0x3f40 [ 42.361395] ? nfs_parse_mount_options+0x5210/0x5210 [ 42.366492] ? nfs_fill_super+0xba0/0xba0 [ 42.370642] ? nfs_auth_info_match+0x190/0x190 [ 42.375249] ? init_once+0x5a0/0x5a0 [ 42.378990] mount_fs+0x296/0x780 [ 42.382478] vfs_kern_mount+0x222/0x990 [ 42.386459] do_mount+0xca5/0x4ed0 [ 42.390061] ? __kmalloc+0x23c/0x350 [ 42.393798] ? copy_mount_options+0x91/0x540 [ 42.398253] SYSC_mount+0x32e/0x3d0 [ 42.401901] SyS_mount+0x77/0xa0 [ 42.405267] do_syscall_64+0x309/0x430 [ 42.409168] ? put_mnt_ns+0x2f0/0x2f0 [ 42.412971] entry_SYSCALL_64_after_hwframe+0x3d/0xa2 [ 42.418170] RIP: 0033:0x440519 [ 42.421351] RSP: 002b:00007ffd793c1418 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 42.429069] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000440519 [ 42.436353] RDX: 000000002015bffc RSI: 0000000020343ff8 RDI: 00000000208deff8 [ 42.443710] RBP: 00007ffd793c1420 R08: 000000002000a000 R09: 0000000000003736 [ 42.450976] R10: 0000000000000000 R11: 0000000000000246 R12: 0030656c69662f2e [ 42.458244] R13: ffffffffffffffff R14: 0000000a00000400 R15: 0000000000000003 executing program [ 42.720324] rpcbind: RPC call returned error 22 [ 42.727496] FAULT_INJECTION: forcing a failure. [ 42.727496] name failslab, interval 1, probability 0, space 0, times 0 [ 42.738784] CPU: 1 PID: 4530 Comm: syz-executor240 Not tainted 4.16.0+ #87 [ 42.745796] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 42.755170] Call Trace: [ 42.757772] dump_stack+0x185/0x1d0 [ 42.761412] should_fail+0x87b/0xab0 [ 42.765171] should_failslab+0x279/0x2a0 [ 42.769300] __kmalloc_track_caller+0x208/0xcb0 [ 42.773987] ? rpc_sockaddr2uaddr+0x716/0x730 [ 42.778491] kstrdup+0xd0/0x1a0 [ 42.781771] rpc_sockaddr2uaddr+0x716/0x730 [ 42.786126] ? rpcb_getport_async+0xbd4/0x1540 [ 42.790731] rpcb_getport_async+0xf21/0x1540 [ 42.795192] ? mempool_free+0x430/0x430 [ 42.799187] ? mempool_alloc+0x183/0x7e0 [ 42.803269] ? put_rpccred+0x41/0xc30 [ 42.807080] ? rpcb_v4_register+0xc20/0xc20 [ 42.811422] call_bind+0x1ad/0x280 [ 42.814993] __rpc_execute+0x58c/0x1530 [ 42.818970] ? call_allocate+0x800/0x800 [ 42.823033] rpc_execute+0x43b/0x6d0 [ 42.826786] rpc_run_task+0x9c9/0xc40 [ 42.830629] rpc_create_xprt+0x5d1/0xcc0 [ 42.834766] rpc_create+0xa62/0xb10 [ 42.838446] ? nfs_create_rpc_client+0x4b5/0x800 [ 42.843221] nfs_create_rpc_client+0x55e/0x800 [ 42.847839] nfs_init_client+0xc2/0x200 [ 42.851829] ? nfs_init_server_rpcclient+0x450/0x450 [ 42.856950] nfs_get_client+0x1577/0x1780 [ 42.861134] ? __msan_metadata_ptr_for_load_4+0x10/0x20 [ 42.866538] nfs_create_server+0xb60/0x3310 [ 42.870911] ? should_failslab+0x279/0x2a0 [ 42.875187] ? nfs_free_server+0x2f0/0x2f0 [ 42.879453] nfs_try_mount+0x48a/0x1510 [ 42.883448] ? kmsan_memcpy_origins+0xf1/0x170 [ 42.888088] ? get_nfs_version+0x48b/0x550 [ 42.892356] ? get_nfs_version+0x4c2/0x550 [ 42.896612] ? nfs_auth_info_match+0x190/0x190 [ 42.901222] nfs_fs_mount+0x3872/0x3f40 [ 42.905215] ? nfs_parse_mount_options+0x5210/0x5210 [ 42.910313] ? nfs_fill_super+0xba0/0xba0 [ 42.914465] ? nfs_auth_info_match+0x190/0x190 [ 42.919072] ? init_once+0x5a0/0x5a0 [ 42.922814] mount_fs+0x296/0x780 [ 42.926283] vfs_kern_mount+0x222/0x990 [ 42.930261] do_mount+0xca5/0x4ed0 [ 42.933836] ? __kmalloc+0x23c/0x350 [ 42.937577] ? copy_mount_options+0x91/0x540 [ 42.942017] SYSC_mount+0x32e/0x3d0 [ 42.945655] SyS_mount+0x77/0xa0 [ 42.949020] do_syscall_64+0x309/0x430 [ 42.952912] ? put_mnt_ns+0x2f0/0x2f0 [ 42.956716] entry_SYSCALL_64_after_hwframe+0x3d/0xa2 [ 42.961903] RIP: 0033:0x440519 [ 42.965085] RSP: 002b:00007ffd793c1418 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 42.972795] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000440519 [ 42.980078] RDX: 000000002015bffc RSI: 0000000020343ff8 RDI: 00000000208deff8 [ 42.987360] RBP: 00007ffd793c1420 R08: 000000002000a000 R09: 0000000000003736 [ 42.994625] R10: 0000000000000000 R11: 0000000000000246 R12: 0030656c69662f2e [ 43.001889] R13: ffffffffffffffff R14: 0000000a00000400 R15: 0000000000000004 [ 43.010470] BUG: unable to handle kernel NULL pointer dereference at 0000000000000000 [ 43.018532] IP: strlen+0x45/0xa0 [ 43.021908] PGD 8000000199826067 P4D 8000000199826067 PUD 196e7c067 PMD 0 [ 43.028944] Oops: 0000 [#1] SMP PTI [ 43.032558] Dumping ftrace buffer: [ 43.036329] (ftrace buffer empty) [ 43.040024] Modules linked in: [ 43.043218] CPU: 0 PID: 732 Comm: kworker/u4:7 Not tainted 4.16.0+ #87 [ 43.049867] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 43.059226] Workqueue: rpciod rpc_async_schedule [ 43.063986] RIP: 0010:strlen+0x45/0xa0 [ 43.067858] RSP: 0018:ffff8801d8a6f8f0 EFLAGS: 00010246 [ 43.073212] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 43.080471] RDX: ffff88019c2c8aa0 RSI: aaaaaaaaaaaab000 RDI: 0000000000000000 [ 43.087732] RBP: ffff8801d8a6f920 R08: 00000000c1e00096 R09: 0000000000000000 [ 43.095530] R10: 0000000000000000 R11: 0000000000000000 R12: ffff8801d933a698 [ 43.102874] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 43.110136] FS: 0000000000000000(0000) GS:ffff88021fc00000(0000) knlGS:0000000000000000 [ 43.118357] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 43.124251] CR2: 0000000000000000 CR3: 00000001cc22e000 CR4: 00000000001406f0 [ 43.131527] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 43.138788] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 43.146046] Call Trace: [ 43.148653] rpcb_enc_getaddr+0x2bb/0x5f0 [ 43.152804] rpcauth_wrap_req+0x269/0x290 [ 43.156969] ? rpcb_getport_async+0x1540/0x1540 [ 43.161629] ? rpcb_getport_async+0x1540/0x1540 [ 43.166289] call_transmit+0x9fc/0x1250 [ 43.170261] __rpc_execute+0x58c/0x1530 [ 43.174246] ? call_bind_status+0x6a0/0x6a0 [ 43.178559] rpc_async_schedule+0x3b/0x50 [ 43.182709] ? __rpc_queue_timer_fn+0x4e0/0x4e0 [ 43.187404] process_one_work+0x12c6/0x1f60 [ 43.191732] worker_thread+0x113c/0x24f0 [ 43.195798] ? process_one_work+0x1f60/0x1f60 [ 43.200288] kthread+0x539/0x720 [ 43.203655] ? process_one_work+0x1f60/0x1f60 [ 43.208154] ? kthread_blkcg+0xf0/0xf0 [ 43.212034] ret_from_fork+0x35/0x40 [ 43.215733] Code: 8b 28 8b 80 88 0c 00 00 89 45 d4 4c 89 f3 eb 16 8b 7d d4 e8 4e 38 eb f7 eb 11 8b 3a e8 45 38 eb f7 eb 22 0f 1f 00 4d 85 ed 75 e5 <44> 0f b6 3b 48 89 df e8 2f 2b eb f7 0f b6 00 84 c0 74 07 f6 d0 [ 43.235628] RIP: strlen+0x45/0xa0 RSP: ffff8801d8a6f8f0 [ 43.240989] CR2: 0000000000000000 [ 43.244444] ---[ end trace 9e6af8b9db2ae749 ]--- [ 43.249189] Kernel panic - not syncing: Fatal exception [ 43.255058] Dumping ftrace buffer: [ 43.258588] (ftrace buffer empty) [ 43.262292] Kernel Offset: disabled [ 43.265910] Rebooting in 86400 seconds..