Warning: Permanently added '10.128.0.22' (ECDSA) to the list of known hosts. syzkaller login: [ 108.851083] IPVS: ftp: loaded support on port[0] = 21 executing program [ 108.878178] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 108.905663] IPVS: ftp: loaded support on port[0] = 21 [ 108.922706] FAULT_INJECTION: forcing a failure. [ 108.922706] name failslab, interval 1, probability 0, space 0, times 1 [ 108.933983] CPU: 1 PID: 4421 Comm: syzkaller513478 Not tainted 4.16.0-rc6+ #41 [ 108.939477] IPVS: ftp: loaded support on port[0] = 21 [ 108.941325] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 108.941330] Call Trace: [ 108.941342] dump_stack+0x194/0x24d [ 108.941352] ? arch_local_irq_restore+0x53/0x53 [ 108.966638] should_fail+0x8c0/0xa40 [ 108.968289] IPVS: ftp: loaded support on port[0] = 21 [ 108.970327] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 108.970332] ? kasan_kmalloc+0xad/0xe0 [ 108.970348] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 108.989629] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 108.994794] ? kill_litter_super+0x72/0x90 [ 108.999139] ? rpc_kill_sb+0x24a/0x3c0 executing program [ 109.002343] IPVS: ftp: loaded support on port[0] = 21 [ 109.002996] ? deactivate_locked_super+0x88/0xd0 [ 109.003005] ? print_irqtrace_events+0x270/0x270 [ 109.017632] ? trace_hardirqs_off+0x10/0x10 [ 109.021934] ? trace_hardirqs_off+0x10/0x10 [ 109.026231] ? print_irqtrace_events+0x270/0x270 [ 109.030970] ? __lock_acquire+0x664/0x3e00 [ 109.035186] should_failslab+0xec/0x120 [ 109.039132] kmem_cache_alloc+0x47/0x760 [ 109.043164] ? trace_hardirqs_off+0x10/0x10 [ 109.045651] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 109.047456] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 109.047471] __debug_object_init+0xa99/0x1040 [ 109.047484] ? debug_object_fixup+0x30/0x30 [ 109.047494] ? debug_object_activate+0x334/0x730 [ 109.047500] ? lock_downgrade+0x980/0x980 [ 109.075425] ? lock_release+0xa40/0xa40 [ 109.079376] ? mark_held_locks+0xaf/0x100 [ 109.082505] IPVS: ftp: loaded support on port[0] = 21 [ 109.083496] ? _raw_spin_unlock_irqrestore+0x31/0xc0 [ 109.083504] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 109.083516] debug_object_activate+0x456/0x730 executing program executing program [ 109.083521] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 109.083524] ? __lock_acquire+0x664/0x3e00 [ 109.083532] ? debug_object_assert_init+0x570/0x570 [ 109.083550] ? rpc_mount+0xd0/0xd0 [ 109.121268] ? rpc_destroy_inode+0x30/0x30 [ 109.125480] __call_rcu.constprop.67+0xf2/0xef0 [ 109.130122] ? __call_rcu.constprop.67+0xf2/0xef0 [ 109.134940] ? lock_release+0xa40/0xa40 [ 109.138888] ? rcu_process_callbacks+0x17f0/0x17f0 [ 109.143792] ? __lock_is_held+0xb6/0x140 [ 109.147836] ? locks_free_lock_context+0xb4/0x440 [ 109.152657] ? locks_lock_inode_wait+0x430/0x430 [ 109.157389] ? fsnotify_grab_connector+0x17f/0x270 [ 109.162291] ? fsnotify_recalc_mask.part.6+0xa0/0xa0 [ 109.167369] ? inode_has_buffers+0x60/0xd0 [ 109.171579] ? fsnotify_destroy_marks+0x13e/0x190 [ 109.176397] ? __destroy_inode+0x407/0x660 [ 109.180604] ? file_remove_privs+0x4a0/0x4a0 [ 109.184982] ? evict+0x576/0x920 [ 109.188322] ? lock_downgrade+0x980/0x980 [ 109.192440] ? trace_hardirqs_on+0xd/0x10 [ 109.196560] ? rpc_mount+0xd0/0xd0 [ 109.200072] call_rcu_sched+0x12/0x20 [ 109.203842] rpc_destroy_inode+0x20/0x30 [ 109.207871] destroy_inode+0x15d/0x200 [ 109.211730] ? __destroy_inode+0x660/0x660 [ 109.215942] evict+0x57e/0x920 [ 109.219107] ? destroy_inode+0x200/0x200 [ 109.223143] ? iput+0x7b1/0xaf0 [ 109.226394] ? lock_downgrade+0x980/0x980 [ 109.230514] ? debug_object_active_state+0x3a5/0x580 [ 109.235591] ? _raw_spin_lock+0x32/0x40 [ 109.239565] ? _atomic_dec_and_lock+0x125/0x1a0 [ 109.244207] ? do_raw_spin_trylock+0x190/0x190 [ 109.248762] ? cpumask_local_spread+0x260/0x260 [ 109.253402] ? mark_held_locks+0xaf/0x100 [ 109.257520] ? reacquire_held_locks+0x1f9/0x3e0 [ 109.262159] ? shrink_dentry_list+0x46b/0xd80 [ 109.266628] iput+0x7b9/0xaf0 [ 109.269712] ? dispose_list+0x3f0/0x3f0 [ 109.273656] ? dentry_unlink_inode+0x38e/0x5e0 [ 109.278209] ? lock_downgrade+0x980/0x980 [ 109.282331] ? reacquire_held_locks+0x1f9/0x3e0 [ 109.286968] ? reacquire_held_locks+0x1f9/0x3e0 [ 109.291606] ? do_raw_spin_trylock+0x190/0x190 [ 109.296163] ? find_held_lock+0x138/0x1d0 [ 109.300287] dentry_unlink_inode+0x4b0/0x5e0 [ 109.304664] ? __dentry_kill+0x3a2/0x700 [ 109.308701] ? release_dentry_name_snapshot+0x70/0x70 [ 109.313860] ? lock_release+0xa40/0xa40 [ 109.317806] ? find_held_lock+0x35/0x1d0 [ 109.321838] ? do_raw_spin_trylock+0x190/0x190 [ 109.326390] ? d_add+0xa70/0xa70 [ 109.329728] ? lock_acquire+0x1d5/0x580 [ 109.333669] ? lock_acquire+0x1d5/0x580 [ 109.337620] __dentry_kill+0x3de/0x700 [ 109.341481] ? check_and_drop+0x1b0/0x1b0 [ 109.345615] shrink_dentry_list+0x480/0xd80 [ 109.349905] ? d_walk+0x1d2/0xb20 [ 109.353334] ? is_subdir+0x430/0x430 [ 109.357030] ? d_shrink_add+0x280/0x280 [ 109.360976] ? dget_parent+0x5b0/0x5b0 [ 109.364836] ? reacquire_held_locks+0x1f9/0x3e0 [ 109.369471] ? reacquire_held_locks+0x1f9/0x3e0 [ 109.374112] ? find_held_lock+0x35/0x1d0 [ 109.378151] shrink_dcache_parent+0xba/0x230 [ 109.382531] ? path_has_submounts+0x1a0/0x1a0 [ 109.386995] ? lock_release+0xa40/0xa40 [ 109.390945] ? d_walk+0x1d2/0xb20 [ 109.394370] do_one_tree+0x15/0x50 [ 109.397878] shrink_dcache_for_umount+0xbb/0x290 [ 109.402602] ? d_walk+0x6f2/0xb20 [ 109.406028] ? d_set_mounted+0x2d0/0x2d0 [ 109.410062] ? read_word_at_a_time+0x20/0x20 [ 109.414446] generic_shutdown_super+0xcd/0x540 [ 109.418996] ? lock_downgrade+0x980/0x980 [ 109.423114] ? destroy_super_rcu+0x200/0x200 [ 109.427491] ? up_read+0x1a/0x40 [ 109.430831] ? blocking_notifier_call_chain+0x112/0x190 [ 109.436174] kill_litter_super+0x72/0x90 [ 109.440206] rpc_kill_sb+0x24a/0x3c0 [ 109.443890] ? rpc_put_sb_net+0x330/0x330 [ 109.448007] ? down_write+0x87/0x120 [ 109.451690] ? down_read+0x150/0x150 [ 109.455378] deactivate_locked_super+0x88/0xd0 [ 109.459929] deactivate_super+0x141/0x1b0 [ 109.464046] ? __sb_start_write+0x2a0/0x2a0 [ 109.468348] cleanup_mnt+0xb2/0x150 [ 109.471946] __cleanup_mnt+0x16/0x20 [ 109.475641] task_work_run+0x199/0x270 [ 109.479502] ? task_work_cancel+0x210/0x210 [ 109.483804] ? exit_to_usermode_loop+0x8c/0x2f0 [ 109.488449] exit_to_usermode_loop+0x275/0x2f0 [ 109.493004] ? trace_event_raw_event_sys_exit+0x260/0x260 [ 109.498511] ? trace_hardirqs_on+0xd/0x10 [ 109.502638] do_syscall_64+0x6ec/0x940 [ 109.506494] ? __do_page_fault+0xc90/0xc90 [ 109.510698] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 109.515429] ? syscall_return_slowpath+0x550/0x550 [ 109.520340] ? syscall_return_slowpath+0x2ac/0x550 [ 109.525243] ? prepare_exit_to_usermode+0x350/0x350 [ 109.530230] ? entry_SYSCALL_64_after_hwframe+0x52/0xb7 [ 109.535566] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 109.540386] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 109.545544] RIP: 0033:0x442da9 [ 109.548702] RSP: 002b:00007ffd459c4fa8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 executing program executing program [ 109.556377] RAX: ffffffffffffffec RBX: 0000000000000000 RCX: 0000000000442da9 [ 109.563617] RDX: 0000000020000480 RSI: 0000000020000180 RDI: 0000000020000100 [ 109.570858] RBP: 00007ffd459c5850 R08: 0000000000000000 R09: 0000000000000000 [ 109.578096] R10: 0000000000200000 R11: 0000000000000246 R12: ffffffffffffffff [ 109.585338] R13: 0000000000000006 R14: 0000000000000000 R15: 00007ffd459c50e8 [ 109.618935] FAULT_INJECTION: forcing a failure. [ 109.618935] name failslab, interval 1, probability 0, space 0, times 0 [ 109.620723] FAULT_INJECTION: forcing a failure. [ 109.620723] name failslab, interval 1, probability 0, space 0, times 0 [ 109.630199] CPU: 1 PID: 4428 Comm: syzkaller513478 Not tainted 4.16.0-rc6+ #41 [ 109.648677] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 109.658010] Call Trace: [ 109.660574] dump_stack+0x194/0x24d [ 109.664175] ? arch_local_irq_restore+0x53/0x53 [ 109.668818] ? __lock_acquire+0x664/0x3e00 [ 109.673024] ? __kernel_text_address+0xd/0x40 [ 109.677500] should_fail+0x8c0/0xa40 [ 109.681189] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 109.686273] ? get_mem_cgroup_from_mm+0x47c/0x710 [ 109.691088] ? lock_downgrade+0x980/0x980 [ 109.695211] ? trace_hardirqs_off+0x10/0x10 [ 109.699506] ? __lock_is_held+0xb6/0x140 [ 109.703548] ? find_held_lock+0x35/0x1d0 [ 109.707587] ? rcu_read_unlock+0x16/0x70 [ 109.711623] ? lock_downgrade+0x980/0x980 [ 109.715750] should_failslab+0xec/0x120 [ 109.719695] kmem_cache_alloc_trace+0x4b/0x740 [ 109.724259] memcg_kmem_get_cache+0x4d3/0x890 [ 109.728729] ? mem_cgroup_handle_over_high+0x130/0x130 [ 109.734075] ? check_same_owner+0x320/0x320 [ 109.738365] ? d_alloc+0x269/0x340 [ 109.741880] ? rcu_note_context_switch+0x710/0x710 [ 109.746779] ? lock_release+0xa40/0xa40 [ 109.750736] kmem_cache_alloc+0x186/0x760 [ 109.754859] ? d_drop+0x51/0x60 [ 109.758112] ? rpc_i_callback+0x30/0x30 [ 109.762061] rpc_alloc_inode+0x1a/0x20 [ 109.765918] alloc_inode+0x65/0x180 [ 109.769516] new_inode_pseudo+0x69/0x190 [ 109.773548] ? prune_icache_sb+0x1a0/0x1a0 [ 109.777752] ? do_raw_spin_trylock+0x190/0x190 [ 109.782303] ? d_add+0xa70/0xa70 [ 109.785649] new_inode+0x1c/0x40 [ 109.788987] rpc_get_inode+0x20/0x1e0 [ 109.792759] __rpc_create_common+0x5d/0x1d0 [ 109.797054] rpc_populate.constprop.15+0x1ad/0x340 [ 109.801962] rpc_fill_super+0x379/0xae0 [ 109.805909] ? cap_capable+0x1b5/0x230 [ 109.809766] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 109.814930] ? security_capable+0x8e/0xc0 [ 109.819051] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 109.824210] ? ns_capable_common+0xcf/0x160 [ 109.828504] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 109.833665] mount_ns+0xc4/0x190 [ 109.837007] rpc_mount+0x9e/0xd0 [ 109.840350] mount_fs+0x66/0x2d0 [ 109.843691] vfs_kern_mount.part.26+0xc6/0x4a0 [ 109.848246] ? may_umount+0xa0/0xa0 [ 109.851845] ? _raw_read_unlock+0x22/0x30 [ 109.855961] ? __get_fs_type+0x8a/0xc0 [ 109.859824] do_mount+0xea4/0x2bb0 [ 109.863333] ? __might_fault+0x110/0x1d0 [ 109.867370] ? copy_mount_string+0x40/0x40 [ 109.871571] ? check_same_owner+0x320/0x320 [ 109.875863] ? __check_object_size+0x8b/0x530 [ 109.880334] ? __might_sleep+0x95/0x190 [ 109.884284] ? kasan_check_write+0x14/0x20 [ 109.888489] ? _copy_from_user+0x99/0x110 [ 109.892613] ? memdup_user+0x5e/0x90 [ 109.896294] ? copy_mount_options+0x1f7/0x2e0 [ 109.900764] SyS_mount+0xab/0x120 [ 109.904196] ? copy_mnt_ns+0xb30/0xb30 [ 109.908055] do_syscall_64+0x281/0x940 [ 109.911911] ? __do_page_fault+0xc90/0xc90 [ 109.916115] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 109.920842] ? syscall_return_slowpath+0x550/0x550 [ 109.925741] ? syscall_return_slowpath+0x2ac/0x550 [ 109.930645] ? prepare_exit_to_usermode+0x350/0x350 [ 109.935637] ? entry_SYSCALL_64_after_hwframe+0x52/0xb7 [ 109.940975] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 109.945796] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 109.950955] RIP: 0033:0x442da9 [ 109.954114] RSP: 002b:00007ffd459c4fa8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 109.961793] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000442da9 [ 109.969035] RDX: 0000000020000480 RSI: 0000000020000180 RDI: 0000000020000100 [ 109.976277] RBP: 00007ffd459c5850 R08: 0000000000000000 R09: 0000000000000000 [ 109.983526] R10: 0000000000200000 R11: 0000000000000246 R12: ffffffffffffffff [ 109.990765] R13: 0000000000000006 R14: 0000000000000000 R15: 00007ffd459c50e8 [ 109.998028] CPU: 0 PID: 4427 Comm: syzkaller513478 Not tainted 4.16.0-rc6+ #41 [ 109.999489] FAULT_INJECTION: forcing a failure. [ 109.999489] name failslab, interval 1, probability 0, space 0, times 0 [ 110.005384] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 110.005387] Call Trace: [ 110.005399] dump_stack+0x194/0x24d [ 110.005409] ? arch_local_irq_restore+0x53/0x53 [ 110.005429] should_fail+0x8c0/0xa40 [ 110.040414] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 110.045490] ? __lock_is_held+0xb6/0x140 [ 110.049525] ? mark_held_locks+0xaf/0x100 [ 110.053646] ? __raw_spin_lock_init+0x1c/0x100 [ 110.058201] ? find_held_lock+0x35/0x1d0 [ 110.062247] ? __lock_is_held+0xb6/0x140 [ 110.066304] ? check_same_owner+0x320/0x320 [ 110.070601] ? d_alloc+0x269/0x340 [ 110.074113] ? rcu_note_context_switch+0x710/0x710 [ 110.079013] ? lock_release+0xa40/0xa40 [ 110.082964] should_failslab+0xec/0x120 [ 110.086909] kmem_cache_alloc+0x47/0x760 [ 110.090946] ? d_drop+0x51/0x60 [ 110.094216] ? rpc_i_callback+0x30/0x30 [ 110.098161] rpc_alloc_inode+0x1a/0x20 [ 110.102017] alloc_inode+0x65/0x180 [ 110.105615] new_inode_pseudo+0x69/0x190 [ 110.109646] ? prune_icache_sb+0x1a0/0x1a0 [ 110.113852] ? do_raw_spin_trylock+0x190/0x190 [ 110.118406] ? d_add+0xa70/0xa70 [ 110.121748] new_inode+0x1c/0x40 [ 110.125084] rpc_get_inode+0x20/0x1e0 [ 110.128857] __rpc_create_common+0x5d/0x1d0 [ 110.133155] rpc_populate.constprop.15+0x1ad/0x340 [ 110.138064] rpc_fill_super+0x379/0xae0 [ 110.142015] ? cap_capable+0x1b5/0x230 [ 110.145874] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 110.151037] ? security_capable+0x8e/0xc0 [ 110.155164] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 110.160321] ? ns_capable_common+0xcf/0x160 [ 110.164617] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 110.169776] mount_ns+0xc4/0x190 [ 110.173115] rpc_mount+0x9e/0xd0 [ 110.176466] mount_fs+0x66/0x2d0 [ 110.179811] vfs_kern_mount.part.26+0xc6/0x4a0 [ 110.184476] ? may_umount+0xa0/0xa0 [ 110.188080] ? _raw_read_unlock+0x22/0x30 [ 110.192211] ? __get_fs_type+0x8a/0xc0 [ 110.196093] do_mount+0xea4/0x2bb0 [ 110.199611] ? __might_fault+0x110/0x1d0 [ 110.203656] ? copy_mount_string+0x40/0x40 [ 110.207868] ? check_same_owner+0x320/0x320 [ 110.212165] ? __check_object_size+0x8b/0x530 [ 110.216646] ? __might_sleep+0x95/0x190 [ 110.220600] ? kasan_check_write+0x14/0x20 [ 110.224819] ? _copy_from_user+0x99/0x110 [ 110.228943] ? memdup_user+0x5e/0x90 [ 110.232633] ? copy_mount_options+0x1f7/0x2e0 [ 110.237103] SyS_mount+0xab/0x120 [ 110.240525] ? copy_mnt_ns+0xb30/0xb30 [ 110.244398] do_syscall_64+0x281/0x940 [ 110.248256] ? __do_page_fault+0xc90/0xc90 [ 110.252463] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 110.257189] ? syscall_return_slowpath+0x550/0x550 [ 110.262088] ? syscall_return_slowpath+0x2ac/0x550 [ 110.266990] ? prepare_exit_to_usermode+0x350/0x350 [ 110.271979] ? entry_SYSCALL_64_after_hwframe+0x52/0xb7 [ 110.277320] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 110.282142] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 110.287302] RIP: 0033:0x442da9 [ 110.290466] RSP: 002b:00007ffd459c4fa8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 110.298156] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000442da9 [ 110.305396] RDX: 0000000020000480 RSI: 0000000020000180 RDI: 0000000020000100 [ 110.312637] RBP: 00007ffd459c5850 R08: 0000000000000000 R09: 0000000000000000 [ 110.319877] R10: 0000000000200000 R11: 0000000000000246 R12: ffffffffffffffff [ 110.327117] R13: 0000000000000006 R14: 0000000000000000 R15: 00007ffd459c50e8 [ 110.334381] CPU: 1 PID: 4424 Comm: syzkaller513478 Not tainted 4.16.0-rc6+ #41 [ 110.334589] net/sunrpc/rpc_pipe.c: __rpc_create_common failed to allocate inode for dentry nfsd [ 110.341733] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 110.341736] Call Trace: [ 110.341749] dump_stack+0x194/0x24d [ 110.341758] ? arch_local_irq_restore+0x53/0x53 [ 110.352124] FAULT_INJECTION: forcing a failure. [ 110.352124] name failslab, interval 1, probability 0, space 0, times 0 [ 110.360172] should_fail+0x8c0/0xa40 [ 110.360181] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 110.390872] ? __lock_is_held+0xb6/0x140 [ 110.394913] ? mark_held_locks+0xaf/0x100 [ 110.399038] ? __raw_spin_lock_init+0x1c/0x100 [ 110.403600] ? find_held_lock+0x35/0x1d0 [ 110.407634] ? __lock_is_held+0xb6/0x140 [ 110.411679] ? check_same_owner+0x320/0x320 [ 110.415975] ? d_alloc+0x269/0x340 [ 110.419488] ? rcu_note_context_switch+0x710/0x710 [ 110.424386] ? lock_release+0xa40/0xa40 [ 110.428337] should_failslab+0xec/0x120 [ 110.432284] kmem_cache_alloc+0x47/0x760 [ 110.436320] ? d_drop+0x51/0x60 [ 110.439572] ? rpc_i_callback+0x30/0x30 [ 110.443523] rpc_alloc_inode+0x1a/0x20 [ 110.447381] alloc_inode+0x65/0x180 [ 110.450978] new_inode_pseudo+0x69/0x190 [ 110.455007] ? prune_icache_sb+0x1a0/0x1a0 [ 110.459211] ? do_raw_spin_trylock+0x190/0x190 [ 110.463762] ? d_add+0xa70/0xa70 [ 110.467103] new_inode+0x1c/0x40 [ 110.470441] rpc_get_inode+0x20/0x1e0 [ 110.474220] __rpc_create_common+0x5d/0x1d0 [ 110.478520] rpc_populate.constprop.15+0x1ad/0x340 [ 110.483427] rpc_fill_super+0x379/0xae0 [ 110.487374] ? cap_capable+0x1b5/0x230 [ 110.491230] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 110.496400] ? security_capable+0x8e/0xc0 [ 110.500520] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 110.505687] ? ns_capable_common+0xcf/0x160 [ 110.510001] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 110.515185] mount_ns+0xc4/0x190 [ 110.518558] rpc_mount+0x9e/0xd0 [ 110.521916] mount_fs+0x66/0x2d0 [ 110.525273] vfs_kern_mount.part.26+0xc6/0x4a0 [ 110.529840] ? may_umount+0xa0/0xa0 [ 110.533449] ? _raw_read_unlock+0x22/0x30 [ 110.537579] ? __get_fs_type+0x8a/0xc0 [ 110.541459] do_mount+0xea4/0x2bb0 [ 110.544980] ? __might_fault+0x110/0x1d0 [ 110.549039] ? copy_mount_string+0x40/0x40 [ 110.553258] ? check_same_owner+0x320/0x320 [ 110.557561] ? __check_object_size+0x8b/0x530 [ 110.562053] ? __might_sleep+0x95/0x190 [ 110.566023] ? kasan_check_write+0x14/0x20 [ 110.570240] ? _copy_from_user+0x99/0x110 [ 110.574379] ? memdup_user+0x5e/0x90 [ 110.578078] ? copy_mount_options+0x1f7/0x2e0 [ 110.582565] SyS_mount+0xab/0x120 [ 110.586002] ? copy_mnt_ns+0xb30/0xb30 [ 110.589876] do_syscall_64+0x281/0x940 [ 110.593749] ? __do_page_fault+0xc90/0xc90 [ 110.597971] ? trace_event_raw_event_sys_exit+0x260/0x260 [ 110.603493] ? syscall_return_slowpath+0x550/0x550 [ 110.608406] ? syscall_return_slowpath+0x2ac/0x550 [ 110.613324] ? entry_SYSCALL_64_after_hwframe+0x52/0xb7 [ 110.618677] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 110.623511] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 110.628680] RIP: 0033:0x442da9 [ 110.631852] RSP: 002b:00007ffd459c4fa8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 110.639543] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000442da9 [ 110.646796] RDX: 0000000020000480 RSI: 0000000020000180 RDI: 0000000020000100 [ 110.654046] RBP: 00007ffd459c5850 R08: 0000000000000000 R09: 0000000000000000 [ 110.661295] R10: 0000000000200000 R11: 0000000000000246 R12: ffffffffffffffff [ 110.668547] R13: 0000000000000006 R14: 0000000000000000 R15: 00007ffd459c50e8 [ 110.675826] CPU: 0 PID: 4422 Comm: syzkaller513478 Not tainted 4.16.0-rc6+ #41 [ 110.675942] net/sunrpc/rpc_pipe.c: __rpc_create_common failed to allocate inode for dentry nfsd [ 110.683170] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 110.683173] Call Trace: [ 110.683187] dump_stack+0x194/0x24d [ 110.683204] ? arch_local_irq_restore+0x53/0x53 [ 110.692328] net/sunrpc/rpc_pipe.c: rpc_populate failed to populate directory / [ 110.701356] should_fail+0x8c0/0xa40 [ 110.701365] ? __free_insn_slot+0x5c0/0x5c0 [ 110.701380] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 110.701394] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 110.701406] ? __lock_acquire+0x664/0x3e00 [ 110.704216] FAULT_INJECTION: forcing a failure. [ 110.704216] name failslab, interval 1, probability 0, space 0, times 0 [ 110.707624] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 110.707644] ? find_held_lock+0x35/0x1d0 [ 110.707663] ? __lock_is_held+0xb6/0x140 [ 110.766460] ? check_same_owner+0x320/0x320 [ 110.770767] ? __d_lookup+0x4f4/0x830 [ 110.774552] ? rcu_note_context_switch+0x710/0x710 [ 110.779481] should_failslab+0xec/0x120 [ 110.783440] kmem_cache_alloc+0x47/0x760 [ 110.787501] __d_alloc+0xc1/0xbd0 [ 110.790941] ? shrink_dcache_for_umount+0x290/0x290 [ 110.795944] ? d_alloc_parallel+0x1b40/0x1b40 [ 110.800428] ? lock_release+0xa40/0xa40 [ 110.804391] ? mark_held_locks+0xaf/0x100 [ 110.808524] ? d_lookup+0x133/0x2e0 [ 110.812147] ? d_lookup+0x1d5/0x2e0 [ 110.815780] d_alloc+0x8e/0x340 [ 110.819051] ? __d_alloc+0xbd0/0xbd0 [ 110.822749] ? full_name_hash+0x9b/0xe0 [ 110.826723] __rpc_lookup_create_exclusive+0x183/0x1d0 [ 110.832073] ? rpc_d_lookup_sb+0x1a0/0x1a0 [ 110.836305] rpc_populate.constprop.15+0xa3/0x340 [ 110.841143] rpc_fill_super+0x379/0xae0 [ 110.845106] ? cap_capable+0x1b5/0x230 [ 110.848974] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 110.854154] ? security_capable+0x8e/0xc0 [ 110.858286] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 110.863465] ? ns_capable_common+0xcf/0x160 [ 110.867776] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 110.872948] mount_ns+0xc4/0x190 [ 110.876305] rpc_mount+0x9e/0xd0 [ 110.879660] mount_fs+0x66/0x2d0 [ 110.883030] vfs_kern_mount.part.26+0xc6/0x4a0 [ 110.887600] ? may_umount+0xa0/0xa0 [ 110.891206] ? _raw_read_unlock+0x22/0x30 [ 110.895335] ? __get_fs_type+0x8a/0xc0 [ 110.899213] do_mount+0xea4/0x2bb0 [ 110.902731] ? __might_fault+0x110/0x1d0 [ 110.906785] ? copy_mount_string+0x40/0x40 [ 110.911002] ? check_same_owner+0x320/0x320 [ 110.915311] ? __check_object_size+0x8b/0x530 [ 110.919796] ? __might_sleep+0x95/0x190 [ 110.923761] ? kasan_check_write+0x14/0x20 [ 110.927977] ? _copy_from_user+0x99/0x110 [ 110.932113] ? memdup_user+0x5e/0x90 [ 110.935806] ? copy_mount_options+0x1f7/0x2e0 [ 110.940290] SyS_mount+0xab/0x120 [ 110.943722] ? copy_mnt_ns+0xb30/0xb30 [ 110.947593] do_syscall_64+0x281/0x940 [ 110.951464] ? __do_page_fault+0xc90/0xc90 [ 110.955686] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 110.960429] ? syscall_return_slowpath+0x550/0x550 [ 110.965347] ? syscall_return_slowpath+0x2ac/0x550 [ 110.970261] ? prepare_exit_to_usermode+0x350/0x350 [ 110.975263] ? entry_SYSCALL_64_after_hwframe+0x52/0xb7 [ 110.980615] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 110.985447] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 110.990618] RIP: 0033:0x442da9 [ 110.993786] RSP: 002b:00007ffd459c4fa8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 111.001477] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000442da9 [ 111.008726] RDX: 0000000020000480 RSI: 0000000020000180 RDI: 0000000020000100 [ 111.015976] RBP: 00007ffd459c5850 R08: 0000000000000000 R09: 0000000000000000 [ 111.023227] R10: 0000000000200000 R11: 0000000000000246 R12: ffffffffffffffff [ 111.030475] R13: 0000000000000006 R14: 0000000000000000 R15: 00007ffd459c50e8 [ 111.037756] CPU: 1 PID: 4425 Comm: syzkaller513478 Not tainted 4.16.0-rc6+ #41 [ 111.041489] FAULT_INJECTION: forcing a failure. [ 111.041489] name failslab, interval 1, probability 0, space 0, times 0 [ 111.045102] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 111.045107] Call Trace: [ 111.045122] dump_stack+0x194/0x24d [ 111.045136] ? arch_local_irq_restore+0x53/0x53 [ 111.045165] should_fail+0x8c0/0xa40 [ 111.080164] ? __free_insn_slot+0x5c0/0x5c0 [ 111.084470] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 111.089561] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 111.094735] ? __lock_acquire+0x664/0x3e00 [ 111.098954] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 111.104131] ? find_held_lock+0x35/0x1d0 [ 111.108185] ? __lock_is_held+0xb6/0x140 [ 111.112247] ? check_same_owner+0x320/0x320 [ 111.116548] ? __d_lookup+0x4f4/0x830 [ 111.120336] ? rcu_note_context_switch+0x710/0x710 [ 111.125259] should_failslab+0xec/0x120 [ 111.129216] kmem_cache_alloc+0x47/0x760 [ 111.133273] __d_alloc+0xc1/0xbd0 [ 111.136712] ? shrink_dcache_for_umount+0x290/0x290 [ 111.141716] ? d_alloc_parallel+0x1b40/0x1b40 [ 111.146199] ? lock_release+0xa40/0xa40 [ 111.150163] ? mark_held_locks+0xaf/0x100 [ 111.154293] ? d_lookup+0x133/0x2e0 [ 111.157910] ? d_lookup+0x1d5/0x2e0 [ 111.161527] d_alloc+0x8e/0x340 [ 111.165138] ? __d_alloc+0xbd0/0xbd0 [ 111.168836] ? full_name_hash+0x9b/0xe0 [ 111.172806] __rpc_lookup_create_exclusive+0x183/0x1d0 [ 111.178070] ? rpc_d_lookup_sb+0x1a0/0x1a0 [ 111.182303] rpc_populate.constprop.15+0xa3/0x340 [ 111.187139] rpc_fill_super+0x379/0xae0 [ 111.191100] ? cap_capable+0x1b5/0x230 [ 111.194967] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 111.200142] ? security_capable+0x8e/0xc0 [ 111.204273] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 111.209441] ? ns_capable_common+0xcf/0x160 [ 111.213747] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 111.218917] mount_ns+0xc4/0x190 [ 111.222276] rpc_mount+0x9e/0xd0 [ 111.225625] mount_fs+0x66/0x2d0 [ 111.228981] vfs_kern_mount.part.26+0xc6/0x4a0 [ 111.233549] ? may_umount+0xa0/0xa0 [ 111.237157] ? _raw_read_unlock+0x22/0x30 [ 111.241287] ? __get_fs_type+0x8a/0xc0 [ 111.245164] do_mount+0xea4/0x2bb0 [ 111.248685] ? __might_fault+0x110/0x1d0 [ 111.252745] ? copy_mount_string+0x40/0x40 [ 111.256963] ? check_same_owner+0x320/0x320 [ 111.261268] ? __check_object_size+0x8b/0x530 [ 111.265758] ? __might_sleep+0x95/0x190 [ 111.269728] ? kasan_check_write+0x14/0x20 [ 111.273948] ? _copy_from_user+0x99/0x110 [ 111.278082] ? memdup_user+0x5e/0x90 [ 111.281780] ? copy_mount_options+0x1f7/0x2e0 [ 111.286263] SyS_mount+0xab/0x120 [ 111.289697] ? copy_mnt_ns+0xb30/0xb30 [ 111.293568] do_syscall_64+0x281/0x940 [ 111.297433] ? __do_page_fault+0xc90/0xc90 [ 111.301649] ? trace_event_raw_event_sys_exit+0x260/0x260 [ 111.307167] ? syscall_return_slowpath+0x550/0x550 [ 111.312080] ? syscall_return_slowpath+0x2ac/0x550 [ 111.316999] ? entry_SYSCALL_64_after_hwframe+0x52/0xb7 [ 111.322354] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 111.327187] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 111.332356] RIP: 0033:0x442da9 [ 111.335528] RSP: 002b:00007ffd459c4fa8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 111.343215] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000442da9 [ 111.350464] RDX: 0000000020000480 RSI: 0000000020000180 RDI: 0000000020000100 [ 111.357718] RBP: 00007ffd459c5850 R08: 0000000000000000 R09: 0000000000000000 [ 111.364968] R10: 0000000000200000 R11: 0000000000000246 R12: ffffffffffffffff [ 111.372217] R13: 0000000000000006 R14: 0000000000000000 R15: 00007ffd459c50e8 [ 111.379500] CPU: 0 PID: 4431 Comm: syzkaller513478 Not tainted 4.16.0-rc6+ #41 [ 111.386850] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 111.390685] net/sunrpc/rpc_pipe.c: rpc_populate failed to populate directory / [ 111.396195] Call Trace: [ 111.396211] dump_stack+0x194/0x24d [ 111.396226] ? arch_local_irq_restore+0x53/0x53 [ 111.396257] should_fail+0x8c0/0xa40 [ 111.396271] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 111.406345] net/sunrpc/rpc_pipe.c: rpc_populate failed to populate directory / [ 111.409774] ? __lock_is_held+0xb6/0x140 [ 111.409790] ? mark_held_locks+0xaf/0x100 [ 111.409804] ? __raw_spin_lock_init+0x1c/0x100 [ 111.409821] ? find_held_lock+0x35/0x1d0 [ 111.409837] ? __lock_is_held+0xb6/0x140 [ 111.418298] net/sunrpc/rpc_pipe.c: rpc_populate failed to populate directory / [ 111.423266] ? check_same_owner+0x320/0x320 [ 111.423276] ? d_alloc+0x269/0x340 [ 111.423289] ? rcu_note_context_switch+0x710/0x710 [ 111.423299] ? lock_release+0xa40/0xa40 [ 111.432949] FAULT_INJECTION: forcing a failure. [ 111.432949] name failslab, interval 1, probability 0, space 0, times 0 [ 111.434680] should_failslab+0xec/0x120 [ 111.434692] kmem_cache_alloc+0x47/0x760 [ 111.434708] ? d_drop+0x51/0x60 [ 111.497914] ? rpc_i_callback+0x30/0x30 [ 111.501873] rpc_alloc_inode+0x1a/0x20 [ 111.505744] alloc_inode+0x65/0x180 [ 111.509351] new_inode_pseudo+0x69/0x190 [ 111.513399] ? prune_icache_sb+0x1a0/0x1a0 [ 111.517619] ? do_raw_spin_trylock+0x190/0x190 [ 111.522183] ? d_add+0xa70/0xa70 [ 111.525545] new_inode+0x1c/0x40 [ 111.528893] rpc_get_inode+0x20/0x1e0 [ 111.532678] __rpc_create_common+0x5d/0x1d0 [ 111.536987] rpc_mkpipe_dentry+0x122/0x360 [ 111.541211] rpc_fill_super+0x85e/0xae0 [ 111.545182] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 111.550360] ? security_capable+0x8e/0xc0 [ 111.554496] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 111.559668] ? ns_capable_common+0xcf/0x160 [ 111.563977] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 111.569147] mount_ns+0xc4/0x190 [ 111.572499] rpc_mount+0x9e/0xd0 [ 111.575851] mount_fs+0x66/0x2d0 [ 111.579205] vfs_kern_mount.part.26+0xc6/0x4a0 [ 111.583776] ? may_umount+0xa0/0xa0 [ 111.587386] ? _raw_read_unlock+0x22/0x30 [ 111.591517] ? __get_fs_type+0x8a/0xc0 [ 111.595394] do_mount+0xea4/0x2bb0 [ 111.598917] ? __might_fault+0x110/0x1d0 [ 111.602968] ? copy_mount_string+0x40/0x40 [ 111.607185] ? check_same_owner+0x320/0x320 [ 111.611488] ? __check_object_size+0x8b/0x530 [ 111.615978] ? __might_sleep+0x95/0x190 [ 111.619946] ? kasan_check_write+0x14/0x20 [ 111.624164] ? _copy_from_user+0x99/0x110 [ 111.628300] ? memdup_user+0x5e/0x90 [ 111.631994] ? copy_mount_options+0x1f7/0x2e0 [ 111.636480] SyS_mount+0xab/0x120 [ 111.639914] ? copy_mnt_ns+0xb30/0xb30 [ 111.643787] do_syscall_64+0x281/0x940 [ 111.647654] ? __do_page_fault+0xc90/0xc90 [ 111.651878] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 111.656620] ? syscall_return_slowpath+0x550/0x550 [ 111.661535] ? syscall_return_slowpath+0x2ac/0x550 [ 111.666446] ? prepare_exit_to_usermode+0x350/0x350 [ 111.671445] ? entry_SYSCALL_64_after_hwframe+0x52/0xb7 [ 111.676797] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 111.681633] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 111.686799] RIP: 0033:0x442da9 [ 111.689967] RSP: 002b:00007ffd459c4fa8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 111.697657] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000442da9 [ 111.704906] RDX: 0000000020000480 RSI: 0000000020000180 RDI: 0000000020000100 [ 111.712154] RBP: 00007ffd459c5850 R08: 0000000000000000 R09: 0000000300000000 [ 111.719576] R10: 0000000000200000 R11: 0000000000000246 R12: ffffffffffffffff [ 111.726827] R13: 0000000000000006 R14: 0000000000001380 R15: 00007ffd459c50e8 [ 111.734109] CPU: 1 PID: 4423 Comm: syzkaller513478 Not tainted 4.16.0-rc6+ #41 [ 111.734332] net/sunrpc/rpc_pipe.c: __rpc_create_common failed to allocate inode for dentry gssd [ 111.741453] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 111.741457] Call Trace: [ 111.741471] dump_stack+0x194/0x24d [ 111.741485] ? arch_local_irq_restore+0x53/0x53 [ 111.752216] net/sunrpc/rpc_pipe.c: rpc_mkpipe_dentry() failed to create pipe clntXX/gssd (errno = -12) [ 111.759640] should_fail+0x8c0/0xa40 [ 111.759657] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 111.759671] ? __lock_is_held+0xb6/0x140 [ 111.759685] ? mark_held_locks+0xaf/0x100 [ 111.796786] ? __raw_spin_lock_init+0x1c/0x100 [ 111.801357] ? find_held_lock+0x35/0x1d0 [ 111.805398] ? __lock_is_held+0xb6/0x140 [ 111.809444] ? check_same_owner+0x320/0x320 [ 111.813740] ? d_alloc+0x269/0x340 [ 111.817262] ? rcu_note_context_switch+0x710/0x710 [ 111.822165] ? lock_release+0xa40/0xa40 [ 111.826119] should_failslab+0xec/0x120 [ 111.830067] kmem_cache_alloc+0x47/0x760 [ 111.834104] ? d_drop+0x51/0x60 [ 111.837359] ? rpc_i_callback+0x30/0x30 [ 111.841306] rpc_alloc_inode+0x1a/0x20 [ 111.845175] alloc_inode+0x65/0x180 [ 111.848780] new_inode_pseudo+0x69/0x190 [ 111.852819] ? prune_icache_sb+0x1a0/0x1a0 [ 111.857033] ? do_raw_spin_trylock+0x190/0x190 [ 111.861587] ? d_add+0xa70/0xa70 [ 111.864932] new_inode+0x1c/0x40 [ 111.868272] rpc_get_inode+0x20/0x1e0 [ 111.872054] __rpc_create_common+0x5d/0x1d0 [ 111.876352] rpc_populate.constprop.15+0x1ad/0x340 [ 111.881262] rpc_fill_super+0x379/0xae0 [ 111.885212] ? cap_capable+0x1b5/0x230 [ 111.889071] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 111.894250] ? security_capable+0x8e/0xc0 [ 111.898379] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 111.903549] ? ns_capable_common+0xcf/0x160 [ 111.907846] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 111.913022] mount_ns+0xc4/0x190 [ 111.916370] rpc_mount+0x9e/0xd0 [ 111.919715] mount_fs+0x66/0x2d0 [ 111.923059] vfs_kern_mount.part.26+0xc6/0x4a0 [ 111.927616] ? may_umount+0xa0/0xa0 [ 111.931217] ? _raw_read_unlock+0x22/0x30 [ 111.935337] ? __get_fs_type+0x8a/0xc0 [ 111.939203] do_mount+0xea4/0x2bb0 [ 111.942714] ? __might_fault+0x110/0x1d0 [ 111.946753] ? copy_mount_string+0x40/0x40 [ 111.950966] ? check_same_owner+0x320/0x320 [ 111.955271] ? __check_object_size+0x8b/0x530 [ 111.959753] ? __might_sleep+0x95/0x190 [ 111.963707] ? kasan_check_write+0x14/0x20 [ 111.967914] ? _copy_from_user+0x99/0x110 [ 111.972043] ? memdup_user+0x5e/0x90 [ 111.975733] ? copy_mount_options+0x1f7/0x2e0 [ 111.980209] SyS_mount+0xab/0x120 [ 111.983636] ? copy_mnt_ns+0xb30/0xb30 [ 111.987498] do_syscall_64+0x281/0x940 [ 111.991357] ? __do_page_fault+0xc90/0xc90 [ 111.995566] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 112.000295] ? syscall_return_slowpath+0x550/0x550 [ 112.005200] ? syscall_return_slowpath+0x2ac/0x550 [ 112.010104] ? prepare_exit_to_usermode+0x350/0x350 [ 112.015098] ? entry_SYSCALL_64_after_hwframe+0x52/0xb7 [ 112.020452] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 112.025276] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 112.030436] RIP: 0033:0x442da9 [ 112.033599] RSP: 002b:00007ffd459c4fa8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 112.041277] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000442da9 [ 112.048521] RDX: 0000000020000480 RSI: 0000000020000180 RDI: 0000000020000100 [ 112.055760] RBP: 00007ffd459c5850 R08: 0000000000000000 R09: 0000000000000000 [ 112.063014] R10: 0000000000200000 R11: 0000000000000246 R12: ffffffffffffffff [ 112.070262] R13: 0000000000000006 R14: 0000000000000000 R15: 00007ffd459c50e8 executing program executing program executing program executing program executing program executing program executing program [ 112.077720] net/sunrpc/rpc_pipe.c: __rpc_create_common failed to allocate inode for dentry nfsd [ 112.088053] net/sunrpc/rpc_pipe.c: rpc_populate failed to populate directory / [ 112.115269] FAULT_INJECTION: forcing a failure. [ 112.115269] name failslab, interval 1, probability 0, space 0, times 0 [ 112.126539] CPU: 1 PID: 4432 Comm: syzkaller513478 Not tainted 4.16.0-rc6+ #41 [ 112.133883] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 112.143210] Call Trace: [ 112.145775] dump_stack+0x194/0x24d [ 112.149465] ? arch_local_irq_restore+0x53/0x53 [ 112.154120] should_fail+0x8c0/0xa40 [ 112.157828] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 112.162920] ? __lock_is_held+0xb6/0x140 [ 112.166957] ? mark_held_locks+0xaf/0x100 [ 112.171084] ? __raw_spin_lock_init+0x1c/0x100 [ 112.175663] ? find_held_lock+0x35/0x1d0 [ 112.179709] ? __lock_is_held+0xb6/0x140 [ 112.183762] ? check_same_owner+0x320/0x320 [ 112.188422] ? d_alloc+0x269/0x340 [ 112.191961] ? rcu_note_context_switch+0x710/0x710 [ 112.196867] ? lock_release+0xa40/0xa40 [ 112.200836] should_failslab+0xec/0x120 [ 112.204802] kmem_cache_alloc+0x47/0x760 [ 112.208842] ? d_drop+0x51/0x60 [ 112.212117] ? rpc_i_callback+0x30/0x30 [ 112.216076] rpc_alloc_inode+0x1a/0x20 [ 112.219939] alloc_inode+0x65/0x180 [ 112.223549] new_inode_pseudo+0x69/0x190 [ 112.227605] ? prune_icache_sb+0x1a0/0x1a0 [ 112.231825] ? do_raw_spin_trylock+0x190/0x190 [ 112.236384] ? d_add+0xa70/0xa70 [ 112.239739] new_inode+0x1c/0x40 [ 112.243082] rpc_get_inode+0x20/0x1e0 [ 112.246862] __rpc_create_common+0x5d/0x1d0 [ 112.251183] rpc_mkpipe_dentry+0x122/0x360 [ 112.255423] rpc_fill_super+0x85e/0xae0 [ 112.259378] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 112.264549] ? security_capable+0x8e/0xc0 [ 112.268681] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 112.273856] ? ns_capable_common+0xcf/0x160 [ 112.278158] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 112.283322] mount_ns+0xc4/0x190 [ 112.286668] rpc_mount+0x9e/0xd0 [ 112.290014] mount_fs+0x66/0x2d0 [ 112.293368] vfs_kern_mount.part.26+0xc6/0x4a0 [ 112.297927] ? may_umount+0xa0/0xa0 [ 112.301530] ? _raw_read_unlock+0x22/0x30 [ 112.305653] ? __get_fs_type+0x8a/0xc0 [ 112.309535] do_mount+0xea4/0x2bb0 [ 112.313054] ? __might_fault+0x110/0x1d0 [ 112.317097] ? copy_mount_string+0x40/0x40 [ 112.321317] ? check_same_owner+0x320/0x320 [ 112.325614] ? __check_object_size+0x8b/0x530 [ 112.330090] ? __might_sleep+0x95/0x190 [ 112.334053] ? kasan_check_write+0x14/0x20 [ 112.338262] ? _copy_from_user+0x99/0x110 [ 112.342390] ? memdup_user+0x5e/0x90 [ 112.346087] ? copy_mount_options+0x1f7/0x2e0 [ 112.350564] SyS_mount+0xab/0x120 [ 112.354000] ? copy_mnt_ns+0xb30/0xb30 [ 112.357871] do_syscall_64+0x281/0x940 [ 112.361747] ? __do_page_fault+0xc90/0xc90 [ 112.365964] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 112.370696] ? syscall_return_slowpath+0x550/0x550 [ 112.375612] ? syscall_return_slowpath+0x2ac/0x550 [ 112.380526] ? prepare_exit_to_usermode+0x350/0x350 [ 112.385524] ? entry_SYSCALL_64_after_hwframe+0x52/0xb7 [ 112.390886] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 112.395718] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 112.400888] RIP: 0033:0x442da9 [ 112.404059] RSP: 002b:00007ffd459c4fa8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 112.411747] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000442da9 [ 112.418991] RDX: 0000000020000480 RSI: 0000000020000180 RDI: 0000000020000100 [ 112.426238] RBP: 00007ffd459c5850 R08: 0000000000000000 R09: 0000000300000000 [ 112.433480] R10: 0000000000200000 R11: 0000000000000246 R12: ffffffffffffffff [ 112.440737] R13: 0000000000000006 R14: 0000000000001380 R15: 00007ffd459c50e8 [ 112.448309] net/sunrpc/rpc_pipe.c: __rpc_create_common failed to allocate inode for dentry gssd [ 112.457817] net/sunrpc/rpc_pipe.c: rpc_mkpipe_dentry() failed to create pipe clntXX/gssd (errno = -12) [ 112.476955] FAULT_INJECTION: forcing a failure. [ 112.476955] name failslab, interval 1, probability 0, space 0, times 0 [ 112.478137] FAULT_INJECTION: forcing a failure. [ 112.478137] name failslab, interval 1, probability 0, space 0, times 0 [ 112.488254] CPU: 0 PID: 4440 Comm: syzkaller513478 Not tainted 4.16.0-rc6+ #41 [ 112.506725] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 112.516057] Call Trace: [ 112.518634] dump_stack+0x194/0x24d [ 112.522246] ? arch_local_irq_restore+0x53/0x53 [ 112.526915] should_fail+0x8c0/0xa40 [ 112.530618] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 112.535705] ? __lock_is_held+0xb6/0x140 [ 112.539753] ? mark_held_locks+0xaf/0x100 [ 112.543886] ? __raw_spin_lock_init+0x1c/0x100 [ 112.548457] ? find_held_lock+0x35/0x1d0 [ 112.552509] ? __lock_is_held+0xb6/0x140 [ 112.556573] ? check_same_owner+0x320/0x320 [ 112.560876] ? d_alloc+0x269/0x340 [ 112.564405] ? rcu_note_context_switch+0x710/0x710 [ 112.569328] ? lock_release+0xa40/0xa40 [ 112.573296] should_failslab+0xec/0x120 [ 112.577255] kmem_cache_alloc+0x47/0x760 [ 112.581304] ? d_drop+0x51/0x60 [ 112.584573] ? rpc_i_callback+0x30/0x30 [ 112.588536] rpc_alloc_inode+0x1a/0x20 [ 112.592407] alloc_inode+0x65/0x180 [ 112.596020] new_inode_pseudo+0x69/0x190 [ 112.600064] ? prune_icache_sb+0x1a0/0x1a0 [ 112.604282] ? do_raw_spin_trylock+0x190/0x190 [ 112.608844] ? d_add+0xa70/0xa70 [ 112.612201] new_inode+0x1c/0x40 [ 112.615551] rpc_get_inode+0x20/0x1e0 [ 112.619340] __rpc_create_common+0x5d/0x1d0 [ 112.623653] rpc_mkpipe_dentry+0x122/0x360 [ 112.627876] rpc_fill_super+0x85e/0xae0 [ 112.631843] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 112.637027] ? security_capable+0x8e/0xc0 [ 112.641159] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 112.646329] ? ns_capable_common+0xcf/0x160 [ 112.650636] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 112.655805] mount_ns+0xc4/0x190 [ 112.659163] rpc_mount+0x9e/0xd0 [ 112.662517] mount_fs+0x66/0x2d0 [ 112.665875] vfs_kern_mount.part.26+0xc6/0x4a0 [ 112.670441] ? may_umount+0xa0/0xa0 [ 112.674051] ? _raw_read_unlock+0x22/0x30 [ 112.678182] ? __get_fs_type+0x8a/0xc0 [ 112.682065] do_mount+0xea4/0x2bb0 [ 112.685585] ? __might_fault+0x110/0x1d0 [ 112.689638] ? copy_mount_string+0x40/0x40 [ 112.693852] ? check_same_owner+0x320/0x320 [ 112.698156] ? __check_object_size+0x8b/0x530 [ 112.702653] ? __might_sleep+0x95/0x190 [ 112.706714] ? kasan_check_write+0x14/0x20 [ 112.710932] ? _copy_from_user+0x99/0x110 [ 112.715068] ? memdup_user+0x5e/0x90 [ 112.718766] ? copy_mount_options+0x1f7/0x2e0 [ 112.723252] SyS_mount+0xab/0x120 [ 112.726685] ? copy_mnt_ns+0xb30/0xb30 [ 112.730560] do_syscall_64+0x281/0x940 [ 112.734430] ? __do_page_fault+0xc90/0xc90 [ 112.738645] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 112.743387] ? syscall_return_slowpath+0x550/0x550 [ 112.748303] ? syscall_return_slowpath+0x2ac/0x550 [ 112.753219] ? prepare_exit_to_usermode+0x350/0x350 [ 112.758219] ? entry_SYSCALL_64_after_hwframe+0x52/0xb7 [ 112.763571] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 112.768580] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 112.773752] RIP: 0033:0x442da9 [ 112.776923] RSP: 002b:00007ffd459c4fa8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 112.784613] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000442da9 [ 112.791863] RDX: 0000000020000480 RSI: 0000000020000180 RDI: 0000000020000100 [ 112.799111] RBP: 00007ffd459c5850 R08: 0000000000000000 R09: 0000000300000000 [ 112.806360] R10: 0000000000200000 R11: 0000000000000246 R12: ffffffffffffffff [ 112.813609] R13: 0000000000000006 R14: 0000000000001380 R15: 00007ffd459c50e8 [ 112.820889] CPU: 1 PID: 4439 Comm: syzkaller513478 Not tainted 4.16.0-rc6+ #41 [ 112.821071] net/sunrpc/rpc_pipe.c: __rpc_create_common failed to allocate inode for dentry gssd [ 112.828231] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 112.828235] Call Trace: [ 112.828248] dump_stack+0x194/0x24d [ 112.828263] ? arch_local_irq_restore+0x53/0x53 [ 112.842302] FAULT_INJECTION: forcing a failure. [ 112.842302] name failslab, interval 1, probability 0, space 0, times 0 [ 112.846416] should_fail+0x8c0/0xa40 [ 112.846432] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 112.846445] ? __lock_is_held+0xb6/0x140 [ 112.881203] ? mark_held_locks+0xaf/0x100 [ 112.885337] ? __raw_spin_lock_init+0x1c/0x100 [ 112.889908] ? find_held_lock+0x35/0x1d0 [ 112.893961] ? __lock_is_held+0xb6/0x140 [ 112.898025] ? check_same_owner+0x320/0x320 [ 112.902327] ? d_alloc+0x269/0x340 [ 112.905853] ? rcu_note_context_switch+0x710/0x710 [ 112.910760] ? lock_release+0xa40/0xa40 [ 112.914727] should_failslab+0xec/0x120 [ 112.918682] kmem_cache_alloc+0x47/0x760 [ 112.922727] ? d_drop+0x51/0x60 [ 112.925989] ? rpc_i_callback+0x30/0x30 [ 112.929945] rpc_alloc_inode+0x1a/0x20 [ 112.933815] alloc_inode+0x65/0x180 [ 112.937426] new_inode_pseudo+0x69/0x190 [ 112.941466] ? prune_icache_sb+0x1a0/0x1a0 [ 112.945679] ? do_raw_spin_trylock+0x190/0x190 [ 112.950240] ? d_add+0xa70/0xa70 [ 112.953595] new_inode+0x1c/0x40 [ 112.956941] rpc_get_inode+0x20/0x1e0 [ 112.960725] __rpc_create_common+0x5d/0x1d0 [ 112.965036] rpc_mkpipe_dentry+0x122/0x360 [ 112.969261] rpc_fill_super+0x85e/0xae0 [ 112.973226] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 112.978402] ? security_capable+0x8e/0xc0 [ 112.982532] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 112.987703] ? ns_capable_common+0xcf/0x160 [ 112.992014] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 112.997183] mount_ns+0xc4/0x190 [ 113.000535] rpc_mount+0x9e/0xd0 [ 113.003888] mount_fs+0x66/0x2d0 [ 113.007244] vfs_kern_mount.part.26+0xc6/0x4a0 [ 113.011811] ? may_umount+0xa0/0xa0 [ 113.015422] ? _raw_read_unlock+0x22/0x30 [ 113.019550] ? __get_fs_type+0x8a/0xc0 [ 113.023428] do_mount+0xea4/0x2bb0 [ 113.026946] ? __might_fault+0x110/0x1d0 [ 113.030999] ? copy_mount_string+0x40/0x40 [ 113.035214] ? check_same_owner+0x320/0x320 [ 113.039517] ? __check_object_size+0x8b/0x530 [ 113.044005] ? __might_sleep+0x95/0x190 [ 113.047973] ? kasan_check_write+0x14/0x20 [ 113.052192] ? _copy_from_user+0x99/0x110 [ 113.056327] ? memdup_user+0x5e/0x90 [ 113.060021] ? copy_mount_options+0x1f7/0x2e0 [ 113.064503] SyS_mount+0xab/0x120 [ 113.067935] ? copy_mnt_ns+0xb30/0xb30 [ 113.071807] do_syscall_64+0x281/0x940 [ 113.075675] ? __do_page_fault+0xc90/0xc90 [ 113.079892] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 113.084630] ? syscall_return_slowpath+0x550/0x550 [ 113.089540] ? syscall_return_slowpath+0x2ac/0x550 [ 113.094449] ? prepare_exit_to_usermode+0x350/0x350 [ 113.099447] ? entry_SYSCALL_64_after_hwframe+0x52/0xb7 [ 113.104800] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 113.109634] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 113.114804] RIP: 0033:0x442da9 [ 113.117972] RSP: 002b:00007ffd459c4fa8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 113.125658] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000442da9 [ 113.132909] RDX: 0000000020000480 RSI: 0000000020000180 RDI: 0000000020000100 [ 113.140156] RBP: 00007ffd459c5850 R08: 0000000000000000 R09: 0000000300000000 [ 113.147403] R10: 0000000000200000 R11: 0000000000000246 R12: ffffffffffffffff [ 113.154653] R13: 0000000000000006 R14: 0000000000001380 R15: 00007ffd459c50e8 [ 113.161934] CPU: 0 PID: 4441 Comm: syzkaller513478 Not tainted 4.16.0-rc6+ #41 [ 113.162094] net/sunrpc/rpc_pipe.c: __rpc_create_common failed to allocate inode for dentry gssd executing program [ 113.169277] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 113.169281] Call Trace: [ 113.169292] dump_stack+0x194/0x24d [ 113.169308] ? arch_local_irq_restore+0x53/0x53 [ 113.181199] net/sunrpc/rpc_pipe.c: rpc_mkpipe_dentry() failed to create pipe clntXX/gssd (errno = -12) [ 113.187465] should_fail+0x8c0/0xa40 [ 113.187482] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 113.187496] ? __lock_is_held+0xb6/0x140 [ 113.187511] ? mark_held_locks+0xaf/0x100 [ 113.187521] ? __raw_spin_lock_init+0x1c/0x100 [ 113.191837] net/sunrpc/rpc_pipe.c: rpc_mkpipe_dentry() failed to create pipe clntXX/gssd (errno = -12) [ 113.193695] ? find_held_lock+0x35/0x1d0 [ 113.193716] ? __lock_is_held+0xb6/0x140 [ 113.193750] ? check_same_owner+0x320/0x320 [ 113.193760] ? d_alloc+0x269/0x340 [ 113.193772] ? rcu_note_context_switch+0x710/0x710 [ 113.193777] ? lock_release+0xa40/0xa40 [ 113.193797] should_failslab+0xec/0x120 [ 113.267375] kmem_cache_alloc+0x47/0x760 [ 113.271416] ? d_drop+0x51/0x60 [ 113.274670] ? rpc_i_callback+0x30/0x30 [ 113.278622] rpc_alloc_inode+0x1a/0x20 [ 113.282481] alloc_inode+0x65/0x180 [ 113.286087] new_inode_pseudo+0x69/0x190 [ 113.290136] ? prune_icache_sb+0x1a0/0x1a0 [ 113.294346] ? do_raw_spin_trylock+0x190/0x190 [ 113.298901] ? d_add+0xa70/0xa70 [ 113.302261] new_inode+0x1c/0x40 [ 113.305606] rpc_get_inode+0x20/0x1e0 [ 113.309383] __rpc_create_common+0x5d/0x1d0 [ 113.313685] rpc_mkpipe_dentry+0x122/0x360 [ 113.317896] rpc_fill_super+0x85e/0xae0 [ 113.321860] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 113.327049] ? security_capable+0x8e/0xc0 [ 113.331180] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 113.336348] ? ns_capable_common+0xcf/0x160 [ 113.340647] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 113.345816] mount_ns+0xc4/0x190 [ 113.349165] rpc_mount+0x9e/0xd0 [ 113.352926] mount_fs+0x66/0x2d0 [ 113.356291] vfs_kern_mount.part.26+0xc6/0x4a0 [ 113.360857] ? may_umount+0xa0/0xa0 [ 113.364459] ? _raw_read_unlock+0x22/0x30 [ 113.368581] ? __get_fs_type+0x8a/0xc0 [ 113.372450] do_mount+0xea4/0x2bb0 [ 113.375973] ? __might_fault+0x110/0x1d0 [ 113.380030] ? copy_mount_string+0x40/0x40 [ 113.384250] ? check_same_owner+0x320/0x320 [ 113.388545] ? __check_object_size+0x8b/0x530 [ 113.393033] ? __might_sleep+0x95/0x190 [ 113.397008] ? kasan_check_write+0x14/0x20 [ 113.401224] ? _copy_from_user+0x99/0x110 [ 113.405354] ? memdup_user+0x5e/0x90 [ 113.409048] ? copy_mount_options+0x1f7/0x2e0 [ 113.413536] SyS_mount+0xab/0x120 [ 113.416985] ? copy_mnt_ns+0xb30/0xb30 [ 113.420848] do_syscall_64+0x281/0x940 [ 113.424707] ? __do_page_fault+0xc90/0xc90 [ 113.428914] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 113.433646] ? syscall_return_slowpath+0x550/0x550 [ 113.438550] ? syscall_return_slowpath+0x2ac/0x550 [ 113.443453] ? prepare_exit_to_usermode+0x350/0x350 [ 113.448447] ? entry_SYSCALL_64_after_hwframe+0x52/0xb7 [ 113.453788] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 113.458627] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 113.463790] RIP: 0033:0x442da9 [ 113.466953] RSP: 002b:00007ffd459c4fa8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 113.474632] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000442da9 executing program [ 113.481876] RDX: 0000000020000480 RSI: 0000000020000180 RDI: 0000000020000100 [ 113.489120] RBP: 00007ffd459c5850 R08: 0000000000000000 R09: 0000000300000000 [ 113.496361] R10: 0000000000200000 R11: 0000000000000246 R12: ffffffffffffffff [ 113.503615] R13: 0000000000000006 R14: 0000000000001380 R15: 00007ffd459c50e8 [ 113.510996] net/sunrpc/rpc_pipe.c: __rpc_create_common failed to allocate inode for dentry gssd [ 113.519893] net/sunrpc/rpc_pipe.c: rpc_mkpipe_dentry() failed to create pipe clntXX/gssd (errno = -12) [ 113.538118] FAULT_INJECTION: forcing a failure. [ 113.538118] name failslab, interval 1, probability 0, space 0, times 0 [ 113.549424] CPU: 0 PID: 4443 Comm: syzkaller513478 Not tainted 4.16.0-rc6+ #41 [ 113.552921] FAULT_INJECTION: forcing a failure. [ 113.552921] name failslab, interval 1, probability 0, space 0, times 0 [ 113.556764] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 113.556768] Call Trace: [ 113.556782] dump_stack+0x194/0x24d [ 113.556797] ? arch_local_irq_restore+0x53/0x53 [ 113.556825] should_fail+0x8c0/0xa40 [ 113.591786] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 113.596887] ? __lock_is_held+0xb6/0x140 [ 113.600933] ? mark_held_locks+0xaf/0x100 [ 113.605061] ? __raw_spin_lock_init+0x1c/0x100 [ 113.609631] ? find_held_lock+0x35/0x1d0 [ 113.613680] ? __lock_is_held+0xb6/0x140 [ 113.617742] ? check_same_owner+0x320/0x320 [ 113.622047] ? d_alloc+0x269/0x340 [ 113.625571] ? rcu_note_context_switch+0x710/0x710 [ 113.630501] ? lock_release+0xa40/0xa40 [ 113.634562] should_failslab+0xec/0x120 [ 113.638520] kmem_cache_alloc+0x47/0x760 [ 113.642568] ? d_drop+0x51/0x60 [ 113.645832] ? rpc_i_callback+0x30/0x30 [ 113.649788] rpc_alloc_inode+0x1a/0x20 [ 113.653659] alloc_inode+0x65/0x180 [ 113.657270] new_inode_pseudo+0x69/0x190 [ 113.661313] ? prune_icache_sb+0x1a0/0x1a0 [ 113.665528] ? do_raw_spin_trylock+0x190/0x190 [ 113.670092] ? d_add+0xa70/0xa70 [ 113.673451] new_inode+0x1c/0x40 [ 113.676802] rpc_get_inode+0x20/0x1e0 [ 113.680589] __rpc_create_common+0x5d/0x1d0 [ 113.684898] rpc_mkpipe_dentry+0x122/0x360 [ 113.689126] rpc_fill_super+0x85e/0xae0 [ 113.693088] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 113.698266] ? security_capable+0x8e/0xc0 [ 113.702401] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 113.707569] ? ns_capable_common+0xcf/0x160 [ 113.711876] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 113.717049] mount_ns+0xc4/0x190 [ 113.720403] rpc_mount+0x9e/0xd0 [ 113.723754] mount_fs+0x66/0x2d0 [ 113.727109] vfs_kern_mount.part.26+0xc6/0x4a0 [ 113.731676] ? may_umount+0xa0/0xa0 [ 113.735285] ? _raw_read_unlock+0x22/0x30 [ 113.739414] ? __get_fs_type+0x8a/0xc0 [ 113.743291] do_mount+0xea4/0x2bb0 [ 113.746809] ? __might_fault+0x110/0x1d0 [ 113.750861] ? copy_mount_string+0x40/0x40 [ 113.755077] ? check_same_owner+0x320/0x320 [ 113.759378] ? __check_object_size+0x8b/0x530 [ 113.763862] ? __might_sleep+0x95/0x190 [ 113.767829] ? kasan_check_write+0x14/0x20 [ 113.772046] ? _copy_from_user+0x99/0x110 [ 113.776181] ? memdup_user+0x5e/0x90 [ 113.779877] ? copy_mount_options+0x1f7/0x2e0 [ 113.784361] SyS_mount+0xab/0x120 [ 113.787793] ? copy_mnt_ns+0xb30/0xb30 [ 113.791667] do_syscall_64+0x281/0x940 [ 113.795533] ? __do_page_fault+0xc90/0xc90 [ 113.799748] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 113.804489] ? syscall_return_slowpath+0x550/0x550 [ 113.809401] ? syscall_return_slowpath+0x2ac/0x550 [ 113.814310] ? prepare_exit_to_usermode+0x350/0x350 [ 113.819309] ? entry_SYSCALL_64_after_hwframe+0x52/0xb7 [ 113.824660] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 113.829491] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 113.834659] RIP: 0033:0x442da9 [ 113.837826] RSP: 002b:00007ffd459c4fa8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 113.845515] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000442da9 [ 113.852762] RDX: 0000000020000480 RSI: 0000000020000180 RDI: 0000000020000100 [ 113.860012] RBP: 00007ffd459c5850 R08: 0000000000000000 R09: 0000000300000000 [ 113.867259] R10: 0000000000200000 R11: 0000000000000246 R12: ffffffffffffffff [ 113.874510] R13: 0000000000000006 R14: 0000000000001380 R15: 00007ffd459c50e8 [ 113.881788] CPU: 1 PID: 4444 Comm: syzkaller513478 Not tainted 4.16.0-rc6+ #41 [ 113.882031] net/sunrpc/rpc_pipe.c: __rpc_create_common failed to allocate inode for dentry gssd [ 113.889133] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 113.889137] Call Trace: [ 113.889149] dump_stack+0x194/0x24d [ 113.889163] ? arch_local_irq_restore+0x53/0x53 [ 113.904819] FAULT_INJECTION: forcing a failure. [ 113.904819] name failslab, interval 1, probability 0, space 0, times 0 [ 113.907324] should_fail+0x8c0/0xa40 [ 113.907341] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 113.907357] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 113.907364] ? __lock_acquire+0x664/0x3e00 [ 113.907381] ? __lock_acquire+0x664/0x3e00 [ 113.907398] ? find_held_lock+0x35/0x1d0 [ 113.907418] ? __lock_is_held+0xb6/0x140 [ 113.907450] ? check_same_owner+0x320/0x320 [ 113.964081] ? __d_lookup+0x4f4/0x830 [ 113.967865] ? rcu_note_context_switch+0x710/0x710 [ 113.972788] should_failslab+0xec/0x120 [ 113.976742] kmem_cache_alloc+0x47/0x760 [ 113.980803] __d_alloc+0xc1/0xbd0 [ 113.984246] ? shrink_dcache_for_umount+0x290/0x290 [ 113.989250] ? d_alloc_parallel+0x1b40/0x1b40 [ 113.993730] ? lock_release+0xa40/0xa40 [ 113.997696] ? mark_held_locks+0xaf/0x100 [ 114.001831] ? d_lookup+0x133/0x2e0 [ 114.005453] ? d_lookup+0x1d5/0x2e0 [ 114.009058] ? current_kernel_time64+0x1d4/0x2f0 [ 114.013801] d_alloc+0x8e/0x340 [ 114.017065] ? __d_alloc+0xbd0/0xbd0 [ 114.020761] ? full_name_hash+0x9b/0xe0 [ 114.024731] __rpc_lookup_create_exclusive+0x183/0x1d0 [ 114.029988] ? down_write_nested+0x8b/0x120 [ 114.034289] ? rpc_d_lookup_sb+0x1a0/0x1a0 [ 114.038502] ? _down_write_nest_lock+0x120/0x120 [ 114.043237] ? __d_lookup+0x830/0x830 [ 114.047035] rpc_mkpipe_dentry+0xf8/0x360 [ 114.051171] rpc_fill_super+0x85e/0xae0 [ 114.055133] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 114.060311] ? security_capable+0x8e/0xc0 [ 114.064445] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 114.069703] ? ns_capable_common+0xcf/0x160 [ 114.074013] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 114.079184] mount_ns+0xc4/0x190 [ 114.082538] rpc_mount+0x9e/0xd0 [ 114.085889] mount_fs+0x66/0x2d0 [ 114.089242] vfs_kern_mount.part.26+0xc6/0x4a0 [ 114.093807] ? may_umount+0xa0/0xa0 [ 114.097415] ? _raw_read_unlock+0x22/0x30 [ 114.101544] ? __get_fs_type+0x8a/0xc0 [ 114.105420] do_mount+0xea4/0x2bb0 [ 114.108937] ? __might_fault+0x110/0x1d0 [ 114.112988] ? copy_mount_string+0x40/0x40 [ 114.117206] ? check_same_owner+0x320/0x320 [ 114.121507] ? __check_object_size+0x8b/0x530 [ 114.125996] ? __might_sleep+0x95/0x190 [ 114.129962] ? kasan_check_write+0x14/0x20 [ 114.134178] ? _copy_from_user+0x99/0x110 [ 114.138311] ? memdup_user+0x5e/0x90 [ 114.142008] ? copy_mount_options+0x1f7/0x2e0 [ 114.146490] SyS_mount+0xab/0x120 [ 114.149926] ? copy_mnt_ns+0xb30/0xb30 [ 114.153798] do_syscall_64+0x281/0x940 [ 114.157664] ? __do_page_fault+0xc90/0xc90 [ 114.161883] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 114.166624] ? syscall_return_slowpath+0x550/0x550 [ 114.171536] ? syscall_return_slowpath+0x2ac/0x550 [ 114.176450] ? prepare_exit_to_usermode+0x350/0x350 [ 114.181449] ? entry_SYSCALL_64_after_hwframe+0x52/0xb7 [ 114.187276] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 114.192111] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 114.197281] RIP: 0033:0x442da9 [ 114.200458] RSP: 002b:00007ffd459c4fa8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 114.208146] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000442da9 [ 114.215393] RDX: 0000000020000480 RSI: 0000000020000180 RDI: 0000000020000100 [ 114.222644] RBP: 00007ffd459c5850 R08: 0000000000000000 R09: 0000000300000000 [ 114.229892] R10: 0000000000200000 R11: 0000000000000246 R12: ffffffffffffffff [ 114.237142] R13: 0000000000000006 R14: 0000000000001380 R15: 00007ffd459c50e8 [ 114.244422] CPU: 0 PID: 4442 Comm: syzkaller513478 Not tainted 4.16.0-rc6+ #41 [ 114.246659] FAULT_INJECTION: forcing a failure. [ 114.246659] name failslab, interval 1, probability 0, space 0, times 0 [ 114.251765] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 114.251769] Call Trace: [ 114.251783] dump_stack+0x194/0x24d [ 114.251798] ? arch_local_irq_restore+0x53/0x53 [ 114.251826] should_fail+0x8c0/0xa40 [ 114.286772] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 114.291863] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 114.297032] ? __lock_acquire+0x664/0x3e00 [ 114.301261] ? __lock_acquire+0x664/0x3e00 [ 114.305485] ? find_held_lock+0x35/0x1d0 [ 114.309535] ? __lock_is_held+0xb6/0x140 [ 114.313597] ? check_same_owner+0x320/0x320 [ 114.317897] ? __d_lookup+0x4f4/0x830 [ 114.321682] ? rcu_note_context_switch+0x710/0x710 [ 114.326605] should_failslab+0xec/0x120 [ 114.330564] kmem_cache_alloc+0x47/0x760 [ 114.334620] __d_alloc+0xc1/0xbd0 [ 114.338065] ? shrink_dcache_for_umount+0x290/0x290 [ 114.343066] ? d_alloc_parallel+0x1b40/0x1b40 [ 114.347548] ? lock_release+0xa40/0xa40 [ 114.351510] ? mark_held_locks+0xaf/0x100 [ 114.355731] ? d_lookup+0x133/0x2e0 [ 114.359348] ? d_lookup+0x1d5/0x2e0 [ 114.362957] ? current_kernel_time64+0x1d4/0x2f0 [ 114.367702] d_alloc+0x8e/0x340 [ 114.370971] ? __d_alloc+0xbd0/0xbd0 [ 114.374667] ? full_name_hash+0x9b/0xe0 [ 114.378641] __rpc_lookup_create_exclusive+0x183/0x1d0 [ 114.383896] ? down_write_nested+0x8b/0x120 [ 114.388201] ? rpc_d_lookup_sb+0x1a0/0x1a0 [ 114.392416] ? _down_write_nest_lock+0x120/0x120 [ 114.397160] ? __d_lookup+0x830/0x830 [ 114.400952] rpc_mkpipe_dentry+0xf8/0x360 [ 114.405093] rpc_fill_super+0x85e/0xae0 [ 114.409941] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 114.415120] ? security_capable+0x8e/0xc0 [ 114.419255] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 114.424425] ? ns_capable_common+0xcf/0x160 [ 114.428731] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 114.433903] mount_ns+0xc4/0x190 [ 114.437259] rpc_mount+0x9e/0xd0 [ 114.440614] mount_fs+0x66/0x2d0 [ 114.443969] vfs_kern_mount.part.26+0xc6/0x4a0 [ 114.448538] ? may_umount+0xa0/0xa0 [ 114.452146] ? _raw_read_unlock+0x22/0x30 [ 114.456278] ? __get_fs_type+0x8a/0xc0 [ 114.460160] do_mount+0xea4/0x2bb0 [ 114.463682] ? __might_fault+0x110/0x1d0 [ 114.467734] ? copy_mount_string+0x40/0x40 [ 114.471950] ? check_same_owner+0x320/0x320 [ 114.476253] ? __check_object_size+0x8b/0x530 [ 114.480740] ? __might_sleep+0x95/0x190 [ 114.484708] ? kasan_check_write+0x14/0x20 [ 114.488924] ? _copy_from_user+0x99/0x110 [ 114.493061] ? memdup_user+0x5e/0x90 [ 114.496758] ? copy_mount_options+0x1f7/0x2e0 [ 114.501243] SyS_mount+0xab/0x120 [ 114.504676] ? copy_mnt_ns+0xb30/0xb30 [ 114.508552] do_syscall_64+0x281/0x940 [ 114.512420] ? __do_page_fault+0xc90/0xc90 [ 114.516636] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 114.521378] ? syscall_return_slowpath+0x550/0x550 [ 114.526295] ? syscall_return_slowpath+0x2ac/0x550 [ 114.531211] ? prepare_exit_to_usermode+0x350/0x350 [ 114.536217] ? entry_SYSCALL_64_after_hwframe+0x52/0xb7 [ 114.541571] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 114.546409] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 114.551576] RIP: 0033:0x442da9 [ 114.554746] RSP: 002b:00007ffd459c4fa8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 114.562437] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000442da9 [ 114.569685] RDX: 0000000020000480 RSI: 0000000020000180 RDI: 0000000020000100 [ 114.576937] RBP: 00007ffd459c5850 R08: 0000000000000000 R09: 0000000300000000 [ 114.584185] R10: 0000000000200000 R11: 0000000000000246 R12: ffffffffffffffff executing program executing program [ 114.591434] R13: 0000000000000006 R14: 0000000000001380 R15: 00007ffd459c50e8 [ 114.598713] CPU: 1 PID: 4445 Comm: syzkaller513478 Not tainted 4.16.0-rc6+ #41 [ 114.606069] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 114.615415] Call Trace: [ 114.617297] net/sunrpc/rpc_pipe.c: rpc_mkpipe_dentry() failed to create pipe clntXX/gssd (errno = -12) [ 114.617993] dump_stack+0x194/0x24d [ 114.618010] ? arch_local_irq_restore+0x53/0x53 [ 114.618039] should_fail+0x8c0/0xa40 [ 114.639393] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 114.644476] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 114.649649] ? __lock_acquire+0x664/0x3e00 [ 114.653868] ? __lock_acquire+0x664/0x3e00 [ 114.658083] ? find_held_lock+0x35/0x1d0 [ 114.662124] ? __lock_is_held+0xb6/0x140 [ 114.666181] ? check_same_owner+0x320/0x320 [ 114.670485] ? __d_lookup+0x4f4/0x830 [ 114.674270] ? rcu_note_context_switch+0x710/0x710 [ 114.679199] should_failslab+0xec/0x120 [ 114.683148] kmem_cache_alloc+0x47/0x760 [ 114.687211] __d_alloc+0xc1/0xbd0 [ 114.690655] ? shrink_dcache_for_umount+0x290/0x290 [ 114.695653] ? d_alloc_parallel+0x1b40/0x1b40 [ 114.700128] ? lock_release+0xa40/0xa40 [ 114.704087] ? mark_held_locks+0xaf/0x100 [ 114.708210] ? d_lookup+0x133/0x2e0 [ 114.711819] ? d_lookup+0x1d5/0x2e0 [ 114.715421] ? current_kernel_time64+0x1d4/0x2f0 [ 114.720156] d_alloc+0x8e/0x340 [ 114.723415] ? __d_alloc+0xbd0/0xbd0 [ 114.727104] ? full_name_hash+0x9b/0xe0 [ 114.731067] __rpc_lookup_create_exclusive+0x183/0x1d0 [ 114.736315] ? down_write_nested+0x8b/0x120 [ 114.740612] ? rpc_d_lookup_sb+0x1a0/0x1a0 [ 114.744823] ? _down_write_nest_lock+0x120/0x120 [ 114.749553] ? __d_lookup+0x830/0x830 [ 114.753347] rpc_mkpipe_dentry+0xf8/0x360 [ 114.757475] rpc_fill_super+0x85e/0xae0 [ 114.761429] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 114.766597] ? security_capable+0x8e/0xc0 [ 114.770732] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 114.775898] ? ns_capable_common+0xcf/0x160 [ 114.780194] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 114.785367] mount_ns+0xc4/0x190 [ 114.788720] rpc_mount+0x9e/0xd0 [ 114.792062] mount_fs+0x66/0x2d0 [ 114.795406] vfs_kern_mount.part.26+0xc6/0x4a0 [ 114.799983] ? may_umount+0xa0/0xa0 [ 114.803610] ? _raw_read_unlock+0x22/0x30 [ 114.807736] ? __get_fs_type+0x8a/0xc0 [ 114.811614] do_mount+0xea4/0x2bb0 [ 114.815144] ? __might_fault+0x110/0x1d0 [ 114.819200] ? copy_mount_string+0x40/0x40 [ 114.823409] ? check_same_owner+0x320/0x320 [ 114.827707] ? __check_object_size+0x8b/0x530 [ 114.832182] ? __might_sleep+0x95/0x190 [ 114.836136] ? kasan_check_write+0x14/0x20 [ 114.840343] ? _copy_from_user+0x99/0x110 [ 114.844480] ? memdup_user+0x5e/0x90 [ 114.848169] ? copy_mount_options+0x1f7/0x2e0 [ 114.852643] SyS_mount+0xab/0x120 [ 114.856071] ? copy_mnt_ns+0xb30/0xb30 [ 114.859933] do_syscall_64+0x281/0x940 [ 114.863798] ? __do_page_fault+0xc90/0xc90 [ 114.868024] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 114.872760] ? syscall_return_slowpath+0x550/0x550 [ 114.877661] ? syscall_return_slowpath+0x2ac/0x550 [ 114.882567] ? prepare_exit_to_usermode+0x350/0x350 [ 114.887557] ? entry_SYSCALL_64_after_hwframe+0x52/0xb7 [ 114.892898] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 114.897718] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 114.902878] RIP: 0033:0x442da9 [ 114.906056] RSP: 002b:00007ffd459c4fa8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 114.913740] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000442da9 [ 114.920983] RDX: 0000000020000480 RSI: 0000000020000180 RDI: 0000000020000100 [ 114.928227] RBP: 00007ffd459c5850 R08: 0000000000000000 R09: 0000000300000000 [ 114.935470] R10: 0000000000200000 R11: 0000000000000246 R12: ffffffffffffffff executing program executing program executing program [ 114.942712] R13: 0000000000000006 R14: 0000000000001380 R15: 00007ffd459c50e8 [ 114.958354] FAULT_INJECTION: forcing a failure. [ 114.958354] name failslab, interval 1, probability 0, space 0, times 0 [ 114.969717] CPU: 1 PID: 4446 Comm: syzkaller513478 Not tainted 4.16.0-rc6+ #41 [ 114.977082] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 114.986421] Call Trace: [ 114.988990] dump_stack+0x194/0x24d [ 114.992615] ? arch_local_irq_restore+0x53/0x53 [ 114.997277] should_fail+0x8c0/0xa40 [ 115.000972] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 115.006063] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 115.011228] ? __lock_acquire+0x664/0x3e00 [ 115.015455] ? __lock_acquire+0x664/0x3e00 [ 115.019683] ? find_held_lock+0x35/0x1d0 [ 115.023730] ? __lock_is_held+0xb6/0x140 [ 115.027779] ? check_same_owner+0x320/0x320 [ 115.032081] ? __d_lookup+0x4f4/0x830 [ 115.035860] ? rcu_note_context_switch+0x710/0x710 [ 115.040792] should_failslab+0xec/0x120 [ 115.044755] kmem_cache_alloc+0x47/0x760 [ 115.048809] __d_alloc+0xc1/0xbd0 [ 115.052241] ? shrink_dcache_for_umount+0x290/0x290 [ 115.057247] ? d_alloc_parallel+0x1b40/0x1b40 [ 115.061729] ? lock_release+0xa40/0xa40 [ 115.065696] ? mark_held_locks+0xaf/0x100 [ 115.069825] ? d_lookup+0x133/0x2e0 [ 115.073429] ? d_lookup+0x1d5/0x2e0 [ 115.077032] ? current_kernel_time64+0x1d4/0x2f0 [ 115.081773] d_alloc+0x8e/0x340 [ 115.085039] ? __d_alloc+0xbd0/0xbd0 [ 115.088735] ? full_name_hash+0x9b/0xe0 [ 115.092703] __rpc_lookup_create_exclusive+0x183/0x1d0 [ 115.097953] ? down_write_nested+0x8b/0x120 [ 115.102249] ? rpc_d_lookup_sb+0x1a0/0x1a0 [ 115.106461] ? _down_write_nest_lock+0x120/0x120 [ 115.111197] ? __d_lookup+0x830/0x830 [ 115.114978] rpc_mkpipe_dentry+0xf8/0x360 [ 115.119108] rpc_fill_super+0x85e/0xae0 [ 115.123075] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 115.128243] ? security_capable+0x8e/0xc0 [ 115.132369] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 115.137539] ? ns_capable_common+0xcf/0x160 [ 115.141843] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 115.147009] mount_ns+0xc4/0x190 [ 115.150361] rpc_mount+0x9e/0xd0 [ 115.153704] mount_fs+0x66/0x2d0 [ 115.157063] vfs_kern_mount.part.26+0xc6/0x4a0 [ 115.161634] ? may_umount+0xa0/0xa0 [ 115.165246] ? _raw_read_unlock+0x22/0x30 [ 115.169379] ? __get_fs_type+0x8a/0xc0 [ 115.173249] do_mount+0xea4/0x2bb0 [ 115.176763] ? __might_fault+0x110/0x1d0 [ 115.180803] ? copy_mount_string+0x40/0x40 [ 115.185015] ? check_same_owner+0x320/0x320 [ 115.189318] ? __check_object_size+0x8b/0x530 [ 115.193791] ? __might_sleep+0x95/0x190 [ 115.197748] ? kasan_check_write+0x14/0x20 [ 115.201963] ? _copy_from_user+0x99/0x110 [ 115.206097] ? memdup_user+0x5e/0x90 [ 115.209785] ? copy_mount_options+0x1f7/0x2e0 [ 115.214267] SyS_mount+0xab/0x120 [ 115.217706] ? copy_mnt_ns+0xb30/0xb30 [ 115.221591] do_syscall_64+0x281/0x940 [ 115.225466] ? __do_page_fault+0xc90/0xc90 [ 115.229697] ? trace_event_raw_event_sys_exit+0x260/0x260 [ 115.235209] ? syscall_return_slowpath+0x550/0x550 [ 115.240123] ? syscall_return_slowpath+0x2ac/0x550 [ 115.245046] ? entry_SYSCALL_64_after_hwframe+0x52/0xb7 [ 115.250390] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 115.255215] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 115.260381] RIP: 0033:0x442da9 [ 115.263551] RSP: 002b:00007ffd459c4fa8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 115.271231] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000442da9 [ 115.278488] RDX: 0000000020000480 RSI: 0000000020000180 RDI: 0000000020000100 [ 115.285732] RBP: 00007ffd459c5850 R08: 0000000000000000 R09: 0000000300000000 executing program executing program [ 115.292977] R10: 0000000000200000 R11: 0000000000000246 R12: ffffffffffffffff [ 115.300223] R13: 0000000000000006 R14: 0000000000001380 R15: 00007ffd459c50e8 [ 115.324942] FAULT_INJECTION: forcing a failure. [ 115.324942] name failslab, interval 1, probability 0, space 0, times 0 [ 115.332185] FAULT_INJECTION: forcing a failure. [ 115.332185] name failslab, interval 1, probability 0, space 0, times 0 [ 115.336293] CPU: 0 PID: 4447 Comm: syzkaller513478 Not tainted 4.16.0-rc6+ #41 [ 115.355472] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 115.364810] Call Trace: [ 115.367385] dump_stack+0x194/0x24d [ 115.371001] ? arch_local_irq_restore+0x53/0x53 [ 115.375671] should_fail+0x8c0/0xa40 [ 115.379372] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 115.384459] ? __lock_is_held+0xb6/0x140 [ 115.388507] ? mark_held_locks+0xaf/0x100 [ 115.392641] ? __raw_spin_lock_init+0x1c/0x100 [ 115.397214] ? find_held_lock+0x35/0x1d0 [ 115.401266] ? __lock_is_held+0xb6/0x140 [ 115.405330] ? check_same_owner+0x320/0x320 [ 115.409635] ? d_alloc+0x269/0x340 [ 115.413162] ? rcu_note_context_switch+0x710/0x710 [ 115.418076] ? lock_release+0xa40/0xa40 [ 115.422043] should_failslab+0xec/0x120 [ 115.426001] kmem_cache_alloc+0x47/0x760 [ 115.430053] ? d_drop+0x51/0x60 [ 115.433324] ? rpc_i_callback+0x30/0x30 [ 115.437284] rpc_alloc_inode+0x1a/0x20 [ 115.441151] alloc_inode+0x65/0x180 [ 115.444759] new_inode_pseudo+0x69/0x190 [ 115.448800] ? prune_icache_sb+0x1a0/0x1a0 [ 115.453018] ? do_raw_spin_trylock+0x190/0x190 [ 115.457580] ? d_add+0xa70/0xa70 [ 115.460937] new_inode+0x1c/0x40 [ 115.464289] rpc_get_inode+0x20/0x1e0 [ 115.468079] __rpc_create_common+0x5d/0x1d0 [ 115.472388] rpc_mkpipe_dentry+0x122/0x360 [ 115.476613] rpc_fill_super+0x85e/0xae0 [ 115.480579] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 115.485756] ? security_capable+0x8e/0xc0 [ 115.489890] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 115.495059] ? ns_capable_common+0xcf/0x160 [ 115.499369] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 115.504541] mount_ns+0xc4/0x190 [ 115.507895] rpc_mount+0x9e/0xd0 [ 115.511249] mount_fs+0x66/0x2d0 [ 115.514607] vfs_kern_mount.part.26+0xc6/0x4a0 [ 115.519178] ? may_umount+0xa0/0xa0 [ 115.522789] ? _raw_read_unlock+0x22/0x30 [ 115.526918] ? __get_fs_type+0x8a/0xc0 [ 115.530799] do_mount+0xea4/0x2bb0 [ 115.534320] ? __might_fault+0x110/0x1d0 [ 115.538373] ? copy_mount_string+0x40/0x40 [ 115.542590] ? check_same_owner+0x320/0x320 [ 115.546898] ? __check_object_size+0x8b/0x530 [ 115.551383] ? __might_sleep+0x95/0x190 [ 115.555350] ? kasan_check_write+0x14/0x20 [ 115.559576] ? _copy_from_user+0x99/0x110 [ 115.563722] ? memdup_user+0x5e/0x90 [ 115.567420] ? copy_mount_options+0x1f7/0x2e0 [ 115.571905] SyS_mount+0xab/0x120 [ 115.575340] ? copy_mnt_ns+0xb30/0xb30 [ 115.579213] do_syscall_64+0x281/0x940 [ 115.583085] ? __do_page_fault+0xc90/0xc90 [ 115.587301] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 115.592041] ? syscall_return_slowpath+0x550/0x550 [ 115.596958] ? syscall_return_slowpath+0x2ac/0x550 [ 115.601870] ? prepare_exit_to_usermode+0x350/0x350 [ 115.606870] ? entry_SYSCALL_64_after_hwframe+0x52/0xb7 [ 115.612223] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 115.617060] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 115.622230] RIP: 0033:0x442da9 [ 115.625398] RSP: 002b:00007ffd459c4fa8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 115.633088] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000442da9 [ 115.640341] RDX: 0000000020000480 RSI: 0000000020000180 RDI: 0000000020000100 [ 115.647592] RBP: 00007ffd459c5850 R08: 0000000000000000 R09: 0000000300000000 [ 115.654841] R10: 0000000000200000 R11: 0000000000000246 R12: ffffffffffffffff [ 115.662095] R13: 0000000000000006 R14: 0000000000001380 R15: 00007ffd459c50e8 [ 115.669375] CPU: 1 PID: 4448 Comm: syzkaller513478 Not tainted 4.16.0-rc6+ #41 [ 115.669487] net/sunrpc/rpc_pipe.c: __rpc_create_common failed to allocate inode for dentry gssd [ 115.676725] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 115.676728] Call Trace: [ 115.676741] dump_stack+0x194/0x24d [ 115.676755] ? arch_local_irq_restore+0x53/0x53 [ 115.676782] should_fail+0x8c0/0xa40 [ 115.690858] FAULT_INJECTION: forcing a failure. [ 115.690858] name failslab, interval 1, probability 0, space 0, times 0 [ 115.694919] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 115.694935] ? __lock_is_held+0xb6/0x140 [ 115.694951] ? mark_held_locks+0xaf/0x100 [ 115.694962] ? __raw_spin_lock_init+0x1c/0x100 [ 115.694977] ? find_held_lock+0x35/0x1d0 [ 115.742442] ? __lock_is_held+0xb6/0x140 [ 115.746505] ? check_same_owner+0x320/0x320 [ 115.750811] ? d_alloc+0x269/0x340 [ 115.754336] ? rcu_note_context_switch+0x710/0x710 [ 115.759243] ? lock_release+0xa40/0xa40 [ 115.763212] should_failslab+0xec/0x120 [ 115.767170] kmem_cache_alloc+0x47/0x760 [ 115.771219] ? d_drop+0x51/0x60 [ 115.774483] ? rpc_i_callback+0x30/0x30 [ 115.778444] rpc_alloc_inode+0x1a/0x20 [ 115.782310] alloc_inode+0x65/0x180 [ 115.785920] new_inode_pseudo+0x69/0x190 [ 115.789964] ? prune_icache_sb+0x1a0/0x1a0 [ 115.794178] ? do_raw_spin_trylock+0x190/0x190 [ 115.798743] ? d_add+0xa70/0xa70 [ 115.802103] new_inode+0x1c/0x40 [ 115.805454] rpc_get_inode+0x20/0x1e0 [ 115.809240] __rpc_create_common+0x5d/0x1d0 [ 115.813554] rpc_mkpipe_dentry+0x122/0x360 [ 115.817780] rpc_fill_super+0x85e/0xae0 [ 115.821745] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 115.826923] ? security_capable+0x8e/0xc0 [ 115.831061] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 115.836234] ? ns_capable_common+0xcf/0x160 [ 115.840545] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 115.845713] mount_ns+0xc4/0x190 [ 115.849067] rpc_mount+0x9e/0xd0 [ 115.852422] mount_fs+0x66/0x2d0 [ 115.855779] vfs_kern_mount.part.26+0xc6/0x4a0 [ 115.860348] ? may_umount+0xa0/0xa0 [ 115.863956] ? _raw_read_unlock+0x22/0x30 [ 115.868085] ? __get_fs_type+0x8a/0xc0 [ 115.871966] do_mount+0xea4/0x2bb0 [ 115.875484] ? __might_fault+0x110/0x1d0 [ 115.879540] ? copy_mount_string+0x40/0x40 [ 115.883757] ? check_same_owner+0x320/0x320 [ 115.888059] ? __check_object_size+0x8b/0x530 [ 115.892550] ? __might_sleep+0x95/0x190 [ 115.896515] ? kasan_check_write+0x14/0x20 [ 115.900734] ? _copy_from_user+0x99/0x110 [ 115.904869] ? memdup_user+0x5e/0x90 [ 115.908564] ? copy_mount_options+0x1f7/0x2e0 [ 115.913047] SyS_mount+0xab/0x120 [ 115.916481] ? copy_mnt_ns+0xb30/0xb30 [ 115.920353] do_syscall_64+0x281/0x940 [ 115.924222] ? __do_page_fault+0xc90/0xc90 [ 115.928442] ? trace_event_raw_event_sys_exit+0x260/0x260 [ 115.933963] ? syscall_return_slowpath+0x550/0x550 [ 115.938876] ? syscall_return_slowpath+0x2ac/0x550 [ 115.943794] ? entry_SYSCALL_64_after_hwframe+0x52/0xb7 [ 115.949147] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 115.953980] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 115.959151] RIP: 0033:0x442da9 [ 115.962322] RSP: 002b:00007ffd459c4fa8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 115.970012] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000442da9 [ 115.977264] RDX: 0000000020000480 RSI: 0000000020000180 RDI: 0000000020000100 [ 115.984511] RBP: 00007ffd459c5850 R08: 0000000000000000 R09: 0000000300000000 [ 115.991765] R10: 0000000000200000 R11: 0000000000000246 R12: ffffffffffffffff [ 115.999014] R13: 0000000000000006 R14: 0000000000001380 R15: 00007ffd459c50e8 [ 116.006293] CPU: 0 PID: 4449 Comm: syzkaller513478 Not tainted 4.16.0-rc6+ #41 [ 116.006398] net/sunrpc/rpc_pipe.c: __rpc_create_common failed to allocate inode for dentry gssd [ 116.013636] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 116.013639] Call Trace: [ 116.013653] dump_stack+0x194/0x24d [ 116.013667] ? arch_local_irq_restore+0x53/0x53 [ 116.023336] net/sunrpc/rpc_pipe.c: rpc_mkpipe_dentry() failed to create pipe clntXX/gssd (errno = -12) [ 116.031817] should_fail+0x8c0/0xa40 [ 116.031834] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 116.031849] ? __lock_is_held+0xb6/0x140 [ 116.031863] ? mark_held_locks+0xaf/0x100 [ 116.031873] ? __raw_spin_lock_init+0x1c/0x100 [ 116.031889] ? find_held_lock+0x35/0x1d0 [ 116.077561] ? __lock_is_held+0xb6/0x140 [ 116.081611] ? check_same_owner+0x320/0x320 [ 116.085906] ? d_alloc+0x269/0x340 [ 116.089424] ? rcu_note_context_switch+0x710/0x710 [ 116.094324] ? lock_release+0xa40/0xa40 [ 116.098283] should_failslab+0xec/0x120 [ 116.102233] kmem_cache_alloc+0x47/0x760 [ 116.106270] ? d_drop+0x51/0x60 [ 116.109527] ? rpc_i_callback+0x30/0x30 [ 116.113476] rpc_alloc_inode+0x1a/0x20 [ 116.117338] alloc_inode+0x65/0x180 [ 116.120942] new_inode_pseudo+0x69/0x190 [ 116.124979] ? prune_icache_sb+0x1a0/0x1a0 [ 116.129185] ? do_raw_spin_trylock+0x190/0x190 [ 116.133742] ? d_add+0xa70/0xa70 [ 116.137091] new_inode+0x1c/0x40 [ 116.140433] rpc_get_inode+0x20/0x1e0 [ 116.144209] __rpc_create_common+0x5d/0x1d0 [ 116.148514] rpc_mkpipe_dentry+0x122/0x360 [ 116.152728] rpc_fill_super+0x85e/0xae0 [ 116.156680] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 116.161851] ? security_capable+0x8e/0xc0 [ 116.165973] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 116.171134] ? ns_capable_common+0xcf/0x160 [ 116.175434] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 116.180596] mount_ns+0xc4/0x190 [ 116.183942] rpc_mount+0x9e/0xd0 [ 116.187294] mount_fs+0x66/0x2d0 [ 116.190642] vfs_kern_mount.part.26+0xc6/0x4a0 [ 116.195200] ? may_umount+0xa0/0xa0 [ 116.198802] ? _raw_read_unlock+0x22/0x30 [ 116.202925] ? __get_fs_type+0x8a/0xc0 [ 116.206793] do_mount+0xea4/0x2bb0 [ 116.210307] ? __might_fault+0x110/0x1d0 [ 116.214348] ? copy_mount_string+0x40/0x40 [ 116.218556] ? check_same_owner+0x320/0x320 [ 116.222850] ? __check_object_size+0x8b/0x530 [ 116.227329] ? __might_sleep+0x95/0x190 [ 116.231286] ? kasan_check_write+0x14/0x20 [ 116.235492] ? _copy_from_user+0x99/0x110 [ 116.239618] ? memdup_user+0x5e/0x90 [ 116.243307] ? copy_mount_options+0x1f7/0x2e0 [ 116.247780] SyS_mount+0xab/0x120 [ 116.251209] ? copy_mnt_ns+0xb30/0xb30 [ 116.255075] do_syscall_64+0x281/0x940 [ 116.258934] ? __do_page_fault+0xc90/0xc90 [ 116.263143] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 116.267875] ? syscall_return_slowpath+0x550/0x550 [ 116.272780] ? syscall_return_slowpath+0x2ac/0x550 [ 116.277684] ? prepare_exit_to_usermode+0x350/0x350 [ 116.282677] ? entry_SYSCALL_64_after_hwframe+0x52/0xb7 [ 116.288031] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 116.292856] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 116.298021] RIP: 0033:0x442da9 [ 116.301183] RSP: 002b:00007ffd459c4fa8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 116.308864] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000442da9 [ 116.316108] RDX: 0000000020000480 RSI: 0000000020000180 RDI: 0000000020000100 [ 116.323352] RBP: 00007ffd459c5850 R08: 0000000000000000 R09: 0000000300000000 [ 116.330594] R10: 0000000000200000 R11: 0000000000000246 R12: ffffffffffffffff [ 116.337838] R13: 0000000000000006 R14: 0000000000001380 R15: 00007ffd459c50e8 [ 116.345197] net/sunrpc/rpc_pipe.c: __rpc_create_common failed to allocate inode for dentry gssd [ 116.350059] net/sunrpc/rpc_pipe.c: rpc_mkpipe_dentry() failed to create pipe clntXX/gssd (errno = -12) [ 116.354627] net/sunrpc/rpc_pipe.c: rpc_mkpipe_dentry() failed to create pipe clntXX/gssd (errno = -12) [ 116.369996] FAULT_INJECTION: forcing a failure. [ 116.369996] name failslab, interval 1, probability 0, space 0, times 0 [ 116.376759] FAULT_INJECTION: forcing a failure. [ 116.376759] name failslab, interval 1, probability 0, space 0, times 0 [ 116.384187] CPU: 1 PID: 4454 Comm: syzkaller513478 Not tainted 4.16.0-rc6+ #41 [ 116.402677] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 116.412010] Call Trace: [ 116.414585] dump_stack+0x194/0x24d [ 116.418200] ? arch_local_irq_restore+0x53/0x53 [ 116.422868] should_fail+0x8c0/0xa40 [ 116.426571] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 116.431660] ? __lock_is_held+0xb6/0x140 [ 116.435708] ? mark_held_locks+0xaf/0x100 [ 116.439844] ? __raw_spin_lock_init+0x1c/0x100 [ 116.444415] ? find_held_lock+0x35/0x1d0 [ 116.448469] ? __lock_is_held+0xb6/0x140 [ 116.452543] ? check_same_owner+0x320/0x320 [ 116.456846] ? d_alloc+0x269/0x340 [ 116.460370] ? rcu_note_context_switch+0x710/0x710 [ 116.465277] ? lock_release+0xa40/0xa40 [ 116.469247] should_failslab+0xec/0x120 [ 116.473208] kmem_cache_alloc+0x47/0x760 [ 116.477258] ? d_drop+0x51/0x60 [ 116.480526] ? rpc_i_callback+0x30/0x30 [ 116.484488] rpc_alloc_inode+0x1a/0x20 [ 116.488356] alloc_inode+0x65/0x180 [ 116.491967] new_inode_pseudo+0x69/0x190 [ 116.496011] ? prune_icache_sb+0x1a0/0x1a0 [ 116.500227] ? do_raw_spin_trylock+0x190/0x190 [ 116.504793] ? d_add+0xa70/0xa70 [ 116.508150] new_inode+0x1c/0x40 [ 116.511499] rpc_get_inode+0x20/0x1e0 [ 116.515284] __rpc_create_common+0x5d/0x1d0 [ 116.519599] rpc_mkpipe_dentry+0x122/0x360 [ 116.523823] rpc_fill_super+0x85e/0xae0 [ 116.527786] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 116.532964] ? security_capable+0x8e/0xc0 [ 116.537101] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 116.542270] ? ns_capable_common+0xcf/0x160 [ 116.546581] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 116.551749] mount_ns+0xc4/0x190 [ 116.555107] rpc_mount+0x9e/0xd0 [ 116.558460] mount_fs+0x66/0x2d0 [ 116.561820] vfs_kern_mount.part.26+0xc6/0x4a0 [ 116.566390] ? may_umount+0xa0/0xa0 [ 116.570000] ? _raw_read_unlock+0x22/0x30 [ 116.574135] ? __get_fs_type+0x8a/0xc0 [ 116.578018] do_mount+0xea4/0x2bb0 [ 116.581537] ? __might_fault+0x110/0x1d0 [ 116.585590] ? copy_mount_string+0x40/0x40 [ 116.589808] ? check_same_owner+0x320/0x320 [ 116.594116] ? __check_object_size+0x8b/0x530 [ 116.598605] ? __might_sleep+0x95/0x190 [ 116.602571] ? kasan_check_write+0x14/0x20 [ 116.606789] ? _copy_from_user+0x99/0x110 [ 116.610922] ? memdup_user+0x5e/0x90 [ 116.614617] ? copy_mount_options+0x1f7/0x2e0 [ 116.619102] SyS_mount+0xab/0x120 [ 116.622539] ? copy_mnt_ns+0xb30/0xb30 [ 116.626412] do_syscall_64+0x281/0x940 [ 116.630284] ? __do_page_fault+0xc90/0xc90 [ 116.634505] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 116.639248] ? syscall_return_slowpath+0x550/0x550 [ 116.644163] ? syscall_return_slowpath+0x2ac/0x550 [ 116.649076] ? prepare_exit_to_usermode+0x350/0x350 [ 116.654079] ? entry_SYSCALL_64_after_hwframe+0x52/0xb7 [ 116.659431] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 116.664264] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 116.669432] RIP: 0033:0x442da9 [ 116.672600] RSP: 002b:00007ffd459c4fa8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 116.680290] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000442da9 [ 116.687541] RDX: 0000000020000480 RSI: 0000000020000180 RDI: 0000000020000100 [ 116.694789] RBP: 00007ffd459c5850 R08: 0000000000000000 R09: 0000000300000000 executing program [ 116.702040] R10: 0000000000200000 R11: 0000000000000246 R12: ffffffffffffffff [ 116.709288] R13: 0000000000000006 R14: 0000000000001380 R15: 00007ffd459c50e8 [ 116.716567] CPU: 0 PID: 4453 Comm: syzkaller513478 Not tainted 4.16.0-rc6+ #41 [ 116.716649] net/sunrpc/rpc_pipe.c: __rpc_create_common failed to allocate inode for dentry gssd [ 116.723911] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 116.723915] Call Trace: [ 116.723927] dump_stack+0x194/0x24d [ 116.723941] ? arch_local_irq_restore+0x53/0x53 [ 116.740795] net/sunrpc/rpc_pipe.c: rpc_mkpipe_dentry() failed to create pipe clntXX/gssd (errno = -12) [ 116.742212] should_fail+0x8c0/0xa40 [ 116.742230] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 116.742246] ? __lock_is_held+0xb6/0x140 [ 116.750227] FAULT_INJECTION: forcing a failure. [ 116.750227] name failslab, interval 1, probability 0, space 0, times 0 [ 116.753065] ? mark_held_locks+0xaf/0x100 [ 116.753077] ? __raw_spin_lock_init+0x1c/0x100 [ 116.753095] ? find_held_lock+0x35/0x1d0 [ 116.753111] ? __lock_is_held+0xb6/0x140 [ 116.803226] ? check_same_owner+0x320/0x320 [ 116.807531] ? d_alloc+0x269/0x340 [ 116.811055] ? rcu_note_context_switch+0x710/0x710 [ 116.815966] ? lock_release+0xa40/0xa40 [ 116.819933] should_failslab+0xec/0x120 [ 116.823891] kmem_cache_alloc+0x47/0x760 [ 116.827938] ? d_drop+0x51/0x60 [ 116.831206] ? rpc_i_callback+0x30/0x30 [ 116.835166] rpc_alloc_inode+0x1a/0x20 [ 116.839036] alloc_inode+0x65/0x180 [ 116.842649] new_inode_pseudo+0x69/0x190 [ 116.846691] ? prune_icache_sb+0x1a0/0x1a0 [ 116.850911] ? do_raw_spin_trylock+0x190/0x190 [ 116.855475] ? d_add+0xa70/0xa70 [ 116.858832] new_inode+0x1c/0x40 [ 116.862180] rpc_get_inode+0x20/0x1e0 [ 116.865973] __rpc_create_common+0x5d/0x1d0 [ 116.870287] rpc_mkpipe_dentry+0x122/0x360 [ 116.874514] rpc_fill_super+0x85e/0xae0 [ 116.878478] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 116.883657] ? security_capable+0x8e/0xc0 [ 116.887793] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 116.892976] ? ns_capable_common+0xcf/0x160 [ 116.897284] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 116.902454] mount_ns+0xc4/0x190 [ 116.905810] rpc_mount+0x9e/0xd0 [ 116.909164] mount_fs+0x66/0x2d0 [ 116.912518] vfs_kern_mount.part.26+0xc6/0x4a0 [ 116.917086] ? may_umount+0xa0/0xa0 [ 116.920696] ? _raw_read_unlock+0x22/0x30 [ 116.924823] ? __get_fs_type+0x8a/0xc0 [ 116.928704] do_mount+0xea4/0x2bb0 [ 116.932231] ? __might_fault+0x110/0x1d0 [ 116.936285] ? copy_mount_string+0x40/0x40 [ 116.940499] ? check_same_owner+0x320/0x320 [ 116.944803] ? __check_object_size+0x8b/0x530 [ 116.949292] ? __might_sleep+0x95/0x190 [ 116.953260] ? kasan_check_write+0x14/0x20 [ 116.957479] ? _copy_from_user+0x99/0x110 [ 116.961615] ? memdup_user+0x5e/0x90 [ 116.965317] ? copy_mount_options+0x1f7/0x2e0 [ 116.969803] SyS_mount+0xab/0x120 [ 116.973236] ? copy_mnt_ns+0xb30/0xb30 [ 116.977109] do_syscall_64+0x281/0x940 [ 116.980977] ? __do_page_fault+0xc90/0xc90 [ 116.985195] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 116.989942] ? syscall_return_slowpath+0x550/0x550 [ 116.994856] ? syscall_return_slowpath+0x2ac/0x550 [ 116.999770] ? prepare_exit_to_usermode+0x350/0x350 [ 117.004768] ? entry_SYSCALL_64_after_hwframe+0x52/0xb7 [ 117.010122] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 117.014960] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 117.020127] RIP: 0033:0x442da9 [ 117.023297] RSP: 002b:00007ffd459c4fa8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 117.030989] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000442da9 [ 117.038239] RDX: 0000000020000480 RSI: 0000000020000180 RDI: 0000000020000100 [ 117.045487] RBP: 00007ffd459c5850 R08: 0000000000000000 R09: 0000000300000000 [ 117.052735] R10: 0000000000200000 R11: 0000000000000246 R12: ffffffffffffffff [ 117.059984] R13: 0000000000000006 R14: 0000000000001380 R15: 00007ffd459c50e8 [ 117.067267] CPU: 1 PID: 4452 Comm: syzkaller513478 Not tainted 4.16.0-rc6+ #41 [ 117.067512] net/sunrpc/rpc_pipe.c: __rpc_create_common failed to allocate inode for dentry gssd [ 117.074610] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 117.074613] Call Trace: [ 117.074624] dump_stack+0x194/0x24d [ 117.074640] ? arch_local_irq_restore+0x53/0x53 [ 117.074667] should_fail+0x8c0/0xa40 [ 117.087361] FAULT_INJECTION: forcing a failure. [ 117.087361] name failslab, interval 1, probability 0, space 0, times 0 [ 117.092801] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 117.092815] ? __lock_is_held+0xb6/0x140 [ 117.092831] ? mark_held_locks+0xaf/0x100 [ 117.092844] ? __raw_spin_lock_init+0x1c/0x100 [ 117.136281] ? find_held_lock+0x35/0x1d0 [ 117.140335] ? __lock_is_held+0xb6/0x140 [ 117.144397] ? check_same_owner+0x320/0x320 [ 117.148702] ? d_alloc+0x269/0x340 [ 117.152226] ? rcu_note_context_switch+0x710/0x710 [ 117.157133] ? lock_release+0xa40/0xa40 [ 117.161104] should_failslab+0xec/0x120 [ 117.165062] kmem_cache_alloc+0x47/0x760 [ 117.169109] ? d_drop+0x51/0x60 [ 117.172372] ? rpc_i_callback+0x30/0x30 [ 117.176329] rpc_alloc_inode+0x1a/0x20 [ 117.180200] alloc_inode+0x65/0x180 [ 117.183813] new_inode_pseudo+0x69/0x190 [ 117.187857] ? prune_icache_sb+0x1a0/0x1a0 [ 117.192072] ? do_raw_spin_trylock+0x190/0x190 [ 117.196637] ? d_add+0xa70/0xa70 [ 117.199998] new_inode+0x1c/0x40 [ 117.203350] rpc_get_inode+0x20/0x1e0 [ 117.207137] __rpc_create_common+0x5d/0x1d0 [ 117.211448] rpc_mkpipe_dentry+0x122/0x360 [ 117.215673] rpc_fill_super+0x85e/0xae0 [ 117.219637] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 117.224823] ? security_capable+0x8e/0xc0 [ 117.228959] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 117.234128] ? ns_capable_common+0xcf/0x160 [ 117.238440] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 117.243609] mount_ns+0xc4/0x190 [ 117.246967] rpc_mount+0x9e/0xd0 [ 117.250324] mount_fs+0x66/0x2d0 [ 117.253686] vfs_kern_mount.part.26+0xc6/0x4a0 [ 117.258254] ? may_umount+0xa0/0xa0 [ 117.261866] ? _raw_read_unlock+0x22/0x30 [ 117.265997] ? __get_fs_type+0x8a/0xc0 [ 117.269877] do_mount+0xea4/0x2bb0 [ 117.273395] ? __might_fault+0x110/0x1d0 [ 117.277453] ? copy_mount_string+0x40/0x40 [ 117.281668] ? check_same_owner+0x320/0x320 [ 117.285970] ? __check_object_size+0x8b/0x530 [ 117.290458] ? __might_sleep+0x95/0x190 [ 117.294430] ? kasan_check_write+0x14/0x20 [ 117.298649] ? _copy_from_user+0x99/0x110 [ 117.302783] ? memdup_user+0x5e/0x90 [ 117.306480] ? copy_mount_options+0x1f7/0x2e0 [ 117.310964] SyS_mount+0xab/0x120 [ 117.314398] ? copy_mnt_ns+0xb30/0xb30 [ 117.318275] do_syscall_64+0x281/0x940 [ 117.322142] ? __do_page_fault+0xc90/0xc90 [ 117.326356] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 117.331098] ? syscall_return_slowpath+0x550/0x550 [ 117.336013] ? syscall_return_slowpath+0x2ac/0x550 [ 117.340929] ? prepare_exit_to_usermode+0x350/0x350 [ 117.345930] ? entry_SYSCALL_64_after_hwframe+0x52/0xb7 [ 117.351281] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 117.356122] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 117.361292] RIP: 0033:0x442da9 [ 117.364462] RSP: 002b:00007ffd459c4fa8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 117.372152] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000442da9 [ 117.379404] RDX: 0000000020000480 RSI: 0000000020000180 RDI: 0000000020000100 [ 117.386653] RBP: 00007ffd459c5850 R08: 0000000000000000 R09: 0000000300000000 [ 117.393905] R10: 0000000000200000 R11: 0000000000000246 R12: ffffffffffffffff [ 117.401168] R13: 0000000000000006 R14: 0000000000001380 R15: 00007ffd459c50e8 [ 117.408455] CPU: 0 PID: 4451 Comm: syzkaller513478 Not tainted 4.16.0-rc6+ #41 [ 117.408567] net/sunrpc/rpc_pipe.c: __rpc_create_common failed to allocate inode for dentry gssd [ 117.415803] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 117.415806] Call Trace: [ 117.415819] dump_stack+0x194/0x24d [ 117.415834] ? arch_local_irq_restore+0x53/0x53 [ 117.444763] should_fail+0x8c0/0xa40 [ 117.448458] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 117.453541] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 117.458705] ? __lock_acquire+0x664/0x3e00 [ 117.462921] ? __lock_acquire+0x664/0x3e00 [ 117.467136] ? find_held_lock+0x35/0x1d0 [ 117.471177] ? __lock_is_held+0xb6/0x140 [ 117.475227] ? check_same_owner+0x320/0x320 [ 117.479524] ? __d_lookup+0x4f4/0x830 [ 117.483304] ? rcu_note_context_switch+0x710/0x710 [ 117.488216] should_failslab+0xec/0x120 [ 117.492175] kmem_cache_alloc+0x47/0x760 [ 117.496221] __d_alloc+0xc1/0xbd0 [ 117.499656] ? shrink_dcache_for_umount+0x290/0x290 [ 117.504651] ? d_alloc_parallel+0x1b40/0x1b40 [ 117.509125] ? lock_release+0xa40/0xa40 [ 117.513080] ? mark_held_locks+0xaf/0x100 [ 117.517202] ? d_lookup+0x133/0x2e0 [ 117.520811] ? d_lookup+0x1d5/0x2e0 [ 117.524414] ? current_kernel_time64+0x1d4/0x2f0 [ 117.529150] d_alloc+0x8e/0x340 [ 117.532408] ? __d_alloc+0xbd0/0xbd0 [ 117.536098] ? full_name_hash+0x9b/0xe0 [ 117.540060] __rpc_lookup_create_exclusive+0x183/0x1d0 [ 117.545320] ? down_write_nested+0x8b/0x120 [ 117.549627] ? rpc_d_lookup_sb+0x1a0/0x1a0 [ 117.553834] ? _down_write_nest_lock+0x120/0x120 [ 117.558563] ? __d_lookup+0x830/0x830 [ 117.562347] rpc_mkpipe_dentry+0xf8/0x360 [ 117.566474] rpc_fill_super+0x85e/0xae0 [ 117.570430] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 117.575599] ? security_capable+0x8e/0xc0 [ 117.579723] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 117.584890] ? ns_capable_common+0xcf/0x160 [ 117.589190] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 117.594352] mount_ns+0xc4/0x190 [ 117.597697] rpc_mount+0x9e/0xd0 [ 117.601041] mount_fs+0x66/0x2d0 [ 117.604386] vfs_kern_mount.part.26+0xc6/0x4a0 [ 117.608948] ? may_umount+0xa0/0xa0 [ 117.612550] ? _raw_read_unlock+0x22/0x30 [ 117.616672] ? __get_fs_type+0x8a/0xc0 [ 117.620540] do_mount+0xea4/0x2bb0 [ 117.624056] ? __might_fault+0x110/0x1d0 [ 117.628098] ? copy_mount_string+0x40/0x40 [ 117.632305] ? check_same_owner+0x320/0x320 [ 117.636602] ? __check_object_size+0x8b/0x530 [ 117.641078] ? __might_sleep+0x95/0x190 [ 117.645036] ? kasan_check_write+0x14/0x20 [ 117.649247] ? _copy_from_user+0x99/0x110 [ 117.653373] ? memdup_user+0x5e/0x90 [ 117.657063] ? copy_mount_options+0x1f7/0x2e0 [ 117.661539] SyS_mount+0xab/0x120 [ 117.664964] ? copy_mnt_ns+0xb30/0xb30 [ 117.668830] do_syscall_64+0x281/0x940 [ 117.672692] ? __do_page_fault+0xc90/0xc90 [ 117.676904] ? trace_event_raw_event_sys_exit+0x260/0x260 [ 117.682414] ? syscall_return_slowpath+0x550/0x550 [ 117.687320] ? syscall_return_slowpath+0x2ac/0x550 [ 117.692230] ? entry_SYSCALL_64_after_hwframe+0x52/0xb7 [ 117.697572] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 117.702397] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 117.707557] RIP: 0033:0x442da9 [ 117.710720] RSP: 002b:00007ffd459c4fa8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 117.718400] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000442da9 [ 117.725643] RDX: 0000000020000480 RSI: 0000000020000180 RDI: 0000000020000100 [ 117.732885] RBP: 00007ffd459c5850 R08: 0000000000000000 R09: 0000000300000000 [ 117.740126] R10: 0000000000200000 R11: 0000000000000246 R12: ffffffffffffffff [ 117.747370] R13: 0000000000000006 R14: 0000000000001380 R15: 00007ffd459c50e8 executing program executing program executing program executing program executing program [ 117.755332] net/sunrpc/rpc_pipe.c: rpc_mkpipe_dentry() failed to create pipe clntXX/gssd (errno = -12) [ 117.759665] net/sunrpc/rpc_pipe.c: rpc_mkpipe_dentry() failed to create pipe clntXX/gssd (errno = -12) [ 117.787097] FAULT_INJECTION: forcing a failure. [ 117.787097] name failslab, interval 1, probability 0, space 0, times 0 [ 117.798454] CPU: 1 PID: 4455 Comm: syzkaller513478 Not tainted 4.16.0-rc6+ #41 [ 117.805796] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 117.815122] Call Trace: [ 117.817691] dump_stack+0x194/0x24d [ 117.821295] ? arch_local_irq_restore+0x53/0x53 [ 117.825964] should_fail+0x8c0/0xa40 [ 117.829661] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 117.834753] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 117.839924] ? __lock_acquire+0x664/0x3e00 [ 117.844145] ? __lock_acquire+0x664/0x3e00 [ 117.848368] ? find_held_lock+0x35/0x1d0 [ 117.852408] ? __lock_is_held+0xb6/0x140 [ 117.856456] ? check_same_owner+0x320/0x320 [ 117.860752] ? __d_lookup+0x4f4/0x830 [ 117.864530] ? rcu_note_context_switch+0x710/0x710 [ 117.869441] should_failslab+0xec/0x120 [ 117.873391] kmem_cache_alloc+0x47/0x760 [ 117.877457] __d_alloc+0xc1/0xbd0 [ 117.880897] ? shrink_dcache_for_umount+0x290/0x290 [ 117.885892] ? d_alloc_parallel+0x1b40/0x1b40 [ 117.890372] ? lock_release+0xa40/0xa40 [ 117.894337] ? mark_held_locks+0xaf/0x100 [ 117.898470] ? d_lookup+0x133/0x2e0 [ 117.902078] ? d_lookup+0x1d5/0x2e0 [ 117.905685] ? current_kernel_time64+0x1d4/0x2f0 [ 117.910417] d_alloc+0x8e/0x340 [ 117.913673] ? __d_alloc+0xbd0/0xbd0 [ 117.917374] ? full_name_hash+0x9b/0xe0 [ 117.921342] __rpc_lookup_create_exclusive+0x183/0x1d0 [ 117.926597] ? down_write_nested+0x8b/0x120 [ 117.930906] ? rpc_d_lookup_sb+0x1a0/0x1a0 [ 117.935123] ? _down_write_nest_lock+0x120/0x120 [ 117.939853] ? __d_lookup+0x830/0x830 [ 117.943635] rpc_mkpipe_dentry+0xf8/0x360 [ 117.947767] rpc_fill_super+0x85e/0xae0 [ 117.951728] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 117.956912] ? security_capable+0x8e/0xc0 [ 117.961051] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 117.966222] ? ns_capable_common+0xcf/0x160 [ 117.970522] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 117.975694] mount_ns+0xc4/0x190 [ 117.979062] rpc_mount+0x9e/0xd0 [ 117.982415] mount_fs+0x66/0x2d0 [ 117.985765] vfs_kern_mount.part.26+0xc6/0x4a0 [ 117.990333] ? may_umount+0xa0/0xa0 [ 117.993948] ? _raw_read_unlock+0x22/0x30 [ 117.998070] ? __get_fs_type+0x8a/0xc0 [ 118.001940] do_mount+0xea4/0x2bb0 [ 118.005458] ? __might_fault+0x110/0x1d0 [ 118.009507] ? copy_mount_string+0x40/0x40 [ 118.013715] ? check_same_owner+0x320/0x320 [ 118.018018] ? __check_object_size+0x8b/0x530 [ 118.022502] ? __might_sleep+0x95/0x190 [ 118.026462] ? kasan_check_write+0x14/0x20 [ 118.030672] ? _copy_from_user+0x99/0x110 [ 118.034810] ? memdup_user+0x5e/0x90 [ 118.038519] ? copy_mount_options+0x1f7/0x2e0 [ 118.043004] SyS_mount+0xab/0x120 [ 118.046442] ? copy_mnt_ns+0xb30/0xb30 [ 118.050315] do_syscall_64+0x281/0x940 [ 118.054197] ? __do_page_fault+0xc90/0xc90 [ 118.058424] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 118.063158] ? syscall_return_slowpath+0x550/0x550 [ 118.068064] ? syscall_return_slowpath+0x2ac/0x550 [ 118.072972] ? prepare_exit_to_usermode+0x350/0x350 [ 118.077966] ? entry_SYSCALL_64_after_hwframe+0x52/0xb7 [ 118.083318] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 118.088151] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 118.093319] RIP: 0033:0x442da9 [ 118.096488] RSP: 002b:00007ffd459c4fa8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 executing program [ 118.104184] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000442da9 [ 118.111428] RDX: 0000000020000480 RSI: 0000000020000180 RDI: 0000000020000100 [ 118.118676] RBP: 00007ffd459c5850 R08: 0000000000000000 R09: 0000000300000000 [ 118.125923] R10: 0000000000200000 R11: 0000000000000246 R12: ffffffffffffffff [ 118.133169] R13: 0000000000000006 R14: 0000000000001380 R15: 00007ffd459c50e8 [ 118.158234] FAULT_INJECTION: forcing a failure. [ 118.158234] name failslab, interval 1, probability 0, space 0, times 0 [ 118.158256] FAULT_INJECTION: forcing a failure. [ 118.158256] name failslab, interval 1, probability 0, space 0, times 0 [ 118.169497] CPU: 1 PID: 4459 Comm: syzkaller513478 Not tainted 4.16.0-rc6+ #41 [ 118.169506] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 118.197873] Call Trace: [ 118.200448] dump_stack+0x194/0x24d [ 118.204065] ? arch_local_irq_restore+0x53/0x53 [ 118.208733] should_fail+0x8c0/0xa40 [ 118.212433] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 118.217519] ? __lock_is_held+0xb6/0x140 [ 118.221567] ? mark_held_locks+0xaf/0x100 [ 118.225699] ? __raw_spin_lock_init+0x1c/0x100 [ 118.230272] ? find_held_lock+0x35/0x1d0 [ 118.234327] ? __lock_is_held+0xb6/0x140 [ 118.238838] ? check_same_owner+0x320/0x320 [ 118.243145] ? d_alloc+0x269/0x340 [ 118.246673] ? rcu_note_context_switch+0x710/0x710 [ 118.251582] ? lock_release+0xa40/0xa40 [ 118.255551] should_failslab+0xec/0x120 [ 118.259509] kmem_cache_alloc+0x47/0x760 [ 118.263557] ? d_drop+0x51/0x60 [ 118.267257] ? rpc_i_callback+0x30/0x30 [ 118.271216] rpc_alloc_inode+0x1a/0x20 [ 118.275088] alloc_inode+0x65/0x180 [ 118.278874] new_inode_pseudo+0x69/0x190 [ 118.283450] ? prune_icache_sb+0x1a0/0x1a0 [ 118.287667] ? do_raw_spin_trylock+0x190/0x190 [ 118.292234] ? d_add+0xa70/0xa70 [ 118.295592] new_inode+0x1c/0x40 [ 118.298942] rpc_get_inode+0x20/0x1e0 [ 118.302728] __rpc_create_common+0x5d/0x1d0 [ 118.307040] rpc_mkpipe_dentry+0x122/0x360 [ 118.311264] rpc_fill_super+0x85e/0xae0 [ 118.315228] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 118.320408] ? security_capable+0x8e/0xc0 [ 118.324540] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 118.329708] ? ns_capable_common+0xcf/0x160 [ 118.334019] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 118.339190] mount_ns+0xc4/0x190 [ 118.342545] rpc_mount+0x9e/0xd0 [ 118.345900] mount_fs+0x66/0x2d0 [ 118.349257] vfs_kern_mount.part.26+0xc6/0x4a0 [ 118.353828] ? may_umount+0xa0/0xa0 [ 118.357437] ? _raw_read_unlock+0x22/0x30 [ 118.361567] ? __get_fs_type+0x8a/0xc0 [ 118.365446] do_mount+0xea4/0x2bb0 [ 118.368965] ? __might_fault+0x110/0x1d0 [ 118.373019] ? copy_mount_string+0x40/0x40 [ 118.377238] ? check_same_owner+0x320/0x320 [ 118.381542] ? __check_object_size+0x8b/0x530 [ 118.386033] ? __might_sleep+0x95/0x190 [ 118.390001] ? kasan_check_write+0x14/0x20 [ 118.394217] ? _copy_from_user+0x99/0x110 [ 118.398366] ? memdup_user+0x5e/0x90 [ 118.402062] ? copy_mount_options+0x1f7/0x2e0 [ 118.406546] SyS_mount+0xab/0x120 [ 118.409982] ? copy_mnt_ns+0xb30/0xb30 [ 118.413857] do_syscall_64+0x281/0x940 [ 118.417985] ? __do_page_fault+0xc90/0xc90 [ 118.422202] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 118.426942] ? syscall_return_slowpath+0x550/0x550 [ 118.431856] ? syscall_return_slowpath+0x2ac/0x550 [ 118.436772] ? prepare_exit_to_usermode+0x350/0x350 [ 118.441771] ? entry_SYSCALL_64_after_hwframe+0x52/0xb7 [ 118.447126] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 118.451959] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 118.457128] RIP: 0033:0x442da9 [ 118.460297] RSP: 002b:00007ffd459c4fa8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 118.467990] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000442da9 [ 118.475242] RDX: 0000000020000480 RSI: 0000000020000180 RDI: 0000000020000100 [ 118.482491] RBP: 00007ffd459c5850 R08: 0000000000000000 R09: 0000000300000000 [ 118.489742] R10: 0000000000200000 R11: 0000000000000246 R12: ffffffffffffffff [ 118.496994] R13: 0000000000000006 R14: 0000000000001380 R15: 00007ffd459c50e8 [ 118.504275] CPU: 0 PID: 4457 Comm: syzkaller513478 Not tainted 4.16.0-rc6+ #41 [ 118.504421] net/sunrpc/rpc_pipe.c: __rpc_create_common failed to allocate inode for dentry gssd [ 118.511626] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 118.511629] Call Trace: [ 118.511641] dump_stack+0x194/0x24d [ 118.511656] ? arch_local_irq_restore+0x53/0x53 [ 118.526482] FAULT_INJECTION: forcing a failure. [ 118.526482] name failslab, interval 1, probability 0, space 0, times 0 [ 118.529821] should_fail+0x8c0/0xa40 [ 118.529838] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 118.529850] ? __lock_is_held+0xb6/0x140 [ 118.529864] ? mark_held_locks+0xaf/0x100 [ 118.568739] ? __raw_spin_lock_init+0x1c/0x100 [ 118.573310] ? find_held_lock+0x35/0x1d0 [ 118.577361] ? __lock_is_held+0xb6/0x140 [ 118.581424] ? check_same_owner+0x320/0x320 [ 118.585728] ? d_alloc+0x269/0x340 [ 118.589253] ? rcu_note_context_switch+0x710/0x710 [ 118.594160] ? lock_release+0xa40/0xa40 [ 118.598131] should_failslab+0xec/0x120 [ 118.602089] kmem_cache_alloc+0x47/0x760 [ 118.606135] ? d_drop+0x51/0x60 [ 118.609399] ? rpc_i_callback+0x30/0x30 [ 118.613356] rpc_alloc_inode+0x1a/0x20 [ 118.617223] alloc_inode+0x65/0x180 [ 118.620831] new_inode_pseudo+0x69/0x190 [ 118.624872] ? prune_icache_sb+0x1a0/0x1a0 [ 118.629090] ? do_raw_spin_trylock+0x190/0x190 [ 118.633653] ? d_add+0xa70/0xa70 [ 118.637014] new_inode+0x1c/0x40 [ 118.640365] rpc_get_inode+0x20/0x1e0 [ 118.644150] __rpc_create_common+0x5d/0x1d0 [ 118.648462] rpc_mkpipe_dentry+0x122/0x360 [ 118.652688] rpc_fill_super+0x85e/0xae0 [ 118.656653] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 118.661828] ? security_capable+0x8e/0xc0 [ 118.665963] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 118.671137] ? ns_capable_common+0xcf/0x160 [ 118.675446] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 118.680618] mount_ns+0xc4/0x190 [ 118.683972] rpc_mount+0x9e/0xd0 [ 118.687327] mount_fs+0x66/0x2d0 [ 118.690680] vfs_kern_mount.part.26+0xc6/0x4a0 [ 118.695249] ? may_umount+0xa0/0xa0 [ 118.698860] ? _raw_read_unlock+0x22/0x30 [ 118.702987] ? __get_fs_type+0x8a/0xc0 [ 118.706868] do_mount+0xea4/0x2bb0 [ 118.710388] ? __might_fault+0x110/0x1d0 [ 118.714443] ? copy_mount_string+0x40/0x40 [ 118.718655] ? check_same_owner+0x320/0x320 [ 118.722959] ? __check_object_size+0x8b/0x530 [ 118.727449] ? __might_sleep+0x95/0x190 [ 118.731413] ? kasan_check_write+0x14/0x20 [ 118.735630] ? _copy_from_user+0x99/0x110 [ 118.739767] ? memdup_user+0x5e/0x90 [ 118.743465] ? copy_mount_options+0x1f7/0x2e0 [ 118.747952] SyS_mount+0xab/0x120 [ 118.751384] ? copy_mnt_ns+0xb30/0xb30 [ 118.755255] do_syscall_64+0x281/0x940 [ 118.759123] ? __do_page_fault+0xc90/0xc90 [ 118.763338] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 118.768080] ? syscall_return_slowpath+0x550/0x550 [ 118.772993] ? syscall_return_slowpath+0x2ac/0x550 [ 118.777905] ? prepare_exit_to_usermode+0x350/0x350 [ 118.782904] ? entry_SYSCALL_64_after_hwframe+0x52/0xb7 [ 118.788259] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 118.793094] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 118.798264] RIP: 0033:0x442da9 [ 118.801436] RSP: 002b:00007ffd459c4fa8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 118.809125] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000442da9 [ 118.816374] RDX: 0000000020000480 RSI: 0000000020000180 RDI: 0000000020000100 [ 118.823624] RBP: 00007ffd459c5850 R08: 0000000000000000 R09: 0000000300000000 [ 118.830875] R10: 0000000000200000 R11: 0000000000000246 R12: ffffffffffffffff [ 118.838125] R13: 0000000000000006 R14: 0000000000001380 R15: 00007ffd459c50e8 [ 118.845405] CPU: 1 PID: 4458 Comm: syzkaller513478 Not tainted 4.16.0-rc6+ #41 [ 118.845675] net/sunrpc/rpc_pipe.c: __rpc_create_common failed to allocate inode for dentry gssd [ 118.852749] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 118.852753] Call Trace: [ 118.852764] dump_stack+0x194/0x24d [ 118.852778] ? arch_local_irq_restore+0x53/0x53 [ 118.852806] should_fail+0x8c0/0xa40 [ 118.862298] FAULT_INJECTION: forcing a failure. [ 118.862298] name failslab, interval 1, probability 0, space 0, times 0 [ 118.870945] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 118.870959] ? __lock_is_held+0xb6/0x140 [ 118.870975] ? mark_held_locks+0xaf/0x100 [ 118.870987] ? __raw_spin_lock_init+0x1c/0x100 [ 118.914421] ? find_held_lock+0x35/0x1d0 [ 118.918471] ? __lock_is_held+0xb6/0x140 [ 118.922532] ? check_same_owner+0x320/0x320 [ 118.926836] ? d_alloc+0x269/0x340 [ 118.930360] ? rcu_note_context_switch+0x710/0x710 [ 118.935271] ? lock_release+0xa40/0xa40 [ 118.939239] should_failslab+0xec/0x120 [ 118.943199] kmem_cache_alloc+0x47/0x760 [ 118.947245] ? d_drop+0x51/0x60 [ 118.950512] ? rpc_i_callback+0x30/0x30 [ 118.954474] rpc_alloc_inode+0x1a/0x20 [ 118.958352] alloc_inode+0x65/0x180 [ 118.961964] new_inode_pseudo+0x69/0x190 [ 118.966007] ? prune_icache_sb+0x1a0/0x1a0 [ 118.970225] ? do_raw_spin_trylock+0x190/0x190 [ 118.974792] ? d_add+0xa70/0xa70 [ 118.978151] new_inode+0x1c/0x40 [ 118.981503] rpc_get_inode+0x20/0x1e0 [ 118.985289] __rpc_create_common+0x5d/0x1d0 [ 118.989601] rpc_mkpipe_dentry+0x122/0x360 [ 118.993826] rpc_fill_super+0x85e/0xae0 [ 118.997789] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 119.002967] ? security_capable+0x8e/0xc0 [ 119.007099] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 119.012269] ? ns_capable_common+0xcf/0x160 [ 119.016577] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 119.021746] mount_ns+0xc4/0x190 [ 119.025103] rpc_mount+0x9e/0xd0 [ 119.028473] mount_fs+0x66/0x2d0 [ 119.031833] vfs_kern_mount.part.26+0xc6/0x4a0 [ 119.036400] ? may_umount+0xa0/0xa0 [ 119.040011] ? _raw_read_unlock+0x22/0x30 [ 119.044143] ? __get_fs_type+0x8a/0xc0 [ 119.048028] do_mount+0xea4/0x2bb0 [ 119.051548] ? __might_fault+0x110/0x1d0 [ 119.055600] ? copy_mount_string+0x40/0x40 [ 119.059817] ? check_same_owner+0x320/0x320 [ 119.064123] ? __check_object_size+0x8b/0x530 [ 119.068612] ? __might_sleep+0x95/0x190 [ 119.072576] ? kasan_check_write+0x14/0x20 [ 119.076791] ? _copy_from_user+0x99/0x110 [ 119.080926] ? memdup_user+0x5e/0x90 [ 119.084622] ? copy_mount_options+0x1f7/0x2e0 [ 119.089106] SyS_mount+0xab/0x120 [ 119.092538] ? copy_mnt_ns+0xb30/0xb30 [ 119.096409] do_syscall_64+0x281/0x940 [ 119.100277] ? __do_page_fault+0xc90/0xc90 [ 119.104495] ? trace_event_raw_event_sys_exit+0x260/0x260 [ 119.110014] ? syscall_return_slowpath+0x550/0x550 [ 119.114928] ? syscall_return_slowpath+0x2ac/0x550 [ 119.119844] ? entry_SYSCALL_64_after_hwframe+0x52/0xb7 [ 119.125199] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 119.130033] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 119.135206] RIP: 0033:0x442da9 [ 119.138378] RSP: 002b:00007ffd459c4fa8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 119.146066] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000442da9 [ 119.153316] RDX: 0000000020000480 RSI: 0000000020000180 RDI: 0000000020000100 [ 119.160724] RBP: 00007ffd459c5850 R08: 0000000000000000 R09: 0000000300000000 [ 119.167973] R10: 0000000000200000 R11: 0000000000000246 R12: ffffffffffffffff [ 119.175224] R13: 0000000000000006 R14: 0000000000001380 R15: 00007ffd459c50e8 [ 119.182507] CPU: 0 PID: 4456 Comm: syzkaller513478 Not tainted 4.16.0-rc6+ #41 [ 119.182624] net/sunrpc/rpc_pipe.c: __rpc_create_common failed to allocate inode for dentry gssd [ 119.189850] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 119.189853] Call Trace: [ 119.189866] dump_stack+0x194/0x24d [ 119.189880] ? arch_local_irq_restore+0x53/0x53 [ 119.203887] FAULT_INJECTION: forcing a failure. [ 119.203887] name failslab, interval 1, probability 0, space 0, times 0 [ 119.208016] ? finish_task_switch+0x1c1/0x7e0 [ 119.208023] ? finish_task_switch+0x182/0x7e0 [ 119.208052] should_fail+0x8c0/0xa40 [ 119.242628] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 119.247724] ? mark_held_locks+0xaf/0x100 [ 119.251873] ? __sched_text_start+0x8/0x8 [ 119.256003] ? find_held_lock+0x35/0x1d0 [ 119.260054] ? __lock_is_held+0xb6/0x140 [ 119.264121] ? check_same_owner+0x320/0x320 [ 119.268422] ? d_alloc+0x269/0x340 [ 119.271944] ? lock_downgrade+0x980/0x980 [ 119.276069] ? lock_release+0xa40/0xa40 [ 119.280038] should_failslab+0xec/0x120 [ 119.283995] kmem_cache_alloc+0x47/0x760 [ 119.288063] ? d_drop+0x51/0x60 [ 119.291325] ? rpc_i_callback+0x30/0x30 [ 119.295287] rpc_alloc_inode+0x1a/0x20 [ 119.299157] alloc_inode+0x65/0x180 [ 119.302770] new_inode_pseudo+0x69/0x190 [ 119.306812] ? prune_icache_sb+0x1a0/0x1a0 [ 119.311028] ? do_raw_spin_trylock+0x190/0x190 [ 119.315593] ? d_add+0xa70/0xa70 [ 119.318955] new_inode+0x1c/0x40 [ 119.322303] rpc_get_inode+0x20/0x1e0 [ 119.326089] __rpc_create_common+0x5d/0x1d0 [ 119.330399] rpc_mkpipe_dentry+0x122/0x360 [ 119.334621] rpc_fill_super+0x85e/0xae0 [ 119.338585] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 119.343764] ? security_capable+0x8e/0xc0 [ 119.347899] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 119.353602] ? ns_capable_common+0xcf/0x160 [ 119.357913] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 119.363087] mount_ns+0xc4/0x190 [ 119.366441] rpc_mount+0x9e/0xd0 [ 119.369797] mount_fs+0x66/0x2d0 [ 119.373153] vfs_kern_mount.part.26+0xc6/0x4a0 [ 119.377720] ? may_umount+0xa0/0xa0 [ 119.381332] ? _raw_read_unlock+0x22/0x30 [ 119.385460] ? __get_fs_type+0x8a/0xc0 [ 119.389338] do_mount+0xea4/0x2bb0 [ 119.392858] ? __might_fault+0x110/0x1d0 [ 119.396911] ? copy_mount_string+0x40/0x40 [ 119.401126] ? check_same_owner+0x320/0x320 [ 119.405430] ? __check_object_size+0x8b/0x530 [ 119.409917] ? __might_sleep+0x95/0x190 [ 119.413888] ? kasan_check_write+0x14/0x20 [ 119.418104] ? _copy_from_user+0x99/0x110 [ 119.422239] ? memdup_user+0x5e/0x90 [ 119.425935] ? copy_mount_options+0x1f7/0x2e0 [ 119.430419] SyS_mount+0xab/0x120 [ 119.433854] ? copy_mnt_ns+0xb30/0xb30 [ 119.437731] do_syscall_64+0x281/0x940 [ 119.441602] ? __do_page_fault+0xc90/0xc90 [ 119.445818] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 119.450560] ? syscall_return_slowpath+0x550/0x550 [ 119.455470] ? syscall_return_slowpath+0x2ac/0x550 [ 119.460382] ? prepare_exit_to_usermode+0x350/0x350 [ 119.465381] ? entry_SYSCALL_64_after_hwframe+0x52/0xb7 [ 119.470737] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 119.475570] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 119.480740] RIP: 0033:0x442da9 [ 119.483912] RSP: 002b:00007ffd459c4fa8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 119.491603] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000442da9 [ 119.498850] RDX: 0000000020000480 RSI: 0000000020000180 RDI: 0000000020000100 [ 119.506103] RBP: 00007ffd459c5850 R08: 0000000000000000 R09: 0000000300000000 [ 119.513354] R10: 0000000000200000 R11: 0000000000000246 R12: ffffffffffffffff [ 119.520603] R13: 0000000000000006 R14: 0000000000001380 R15: 00007ffd459c50e8 [ 119.527883] CPU: 1 PID: 4461 Comm: syzkaller513478 Not tainted 4.16.0-rc6+ #41 [ 119.528072] net/sunrpc/rpc_pipe.c: __rpc_create_common failed to allocate inode for dentry gssd [ 119.535230] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 119.535234] Call Trace: [ 119.535246] dump_stack+0x194/0x24d [ 119.535261] ? arch_local_irq_restore+0x53/0x53 [ 119.544148] net/sunrpc/rpc_pipe.c: rpc_mkpipe_dentry() failed to create pipe clntXX/gssd (errno = -12) [ 119.553414] should_fail+0x8c0/0xa40 [ 119.553430] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 119.559112] net/sunrpc/rpc_pipe.c: rpc_mkpipe_dentry() failed to create pipe clntXX/gssd (errno = -12) [ 119.559599] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 119.559607] ? __lock_acquire+0x664/0x3e00 [ 119.566171] net/sunrpc/rpc_pipe.c: rpc_mkpipe_dentry() failed to create pipe clntXX/gssd (errno = -12) [ 119.573682] ? __lock_acquire+0x664/0x3e00 [ 119.573701] ? find_held_lock+0x35/0x1d0 [ 119.573719] ? __lock_is_held+0xb6/0x140 [ 119.573749] ? check_same_owner+0x320/0x320 [ 119.579453] net/sunrpc/rpc_pipe.c: rpc_mkpipe_dentry() failed to create pipe clntXX/gssd (errno = -12) [ 119.582508] ? __d_lookup+0x4f4/0x830 [ 119.582524] ? rcu_note_context_switch+0x710/0x710 [ 119.582549] should_failslab+0xec/0x120 [ 119.582561] kmem_cache_alloc+0x47/0x760 [ 119.582587] __d_alloc+0xc1/0xbd0 [ 119.618932] FAULT_INJECTION: forcing a failure. [ 119.618932] name failslab, interval 1, probability 0, space 0, times 0 [ 119.619042] ? shrink_dcache_for_umount+0x290/0x290 [ 119.619057] ? d_alloc_parallel+0x1b40/0x1b40 [ 119.619072] ? lock_release+0xa40/0xa40 [ 119.681448] ? mark_held_locks+0xaf/0x100 [ 119.685582] ? d_lookup+0x133/0x2e0 [ 119.689203] ? d_lookup+0x1d5/0x2e0 [ 119.692810] ? current_kernel_time64+0x1d4/0x2f0 [ 119.697552] d_alloc+0x8e/0x340 [ 119.700816] ? __d_alloc+0xbd0/0xbd0 [ 119.704511] ? full_name_hash+0x9b/0xe0 [ 119.708485] __rpc_lookup_create_exclusive+0x183/0x1d0 [ 119.713741] ? down_write_nested+0x8b/0x120 [ 119.718044] ? rpc_d_lookup_sb+0x1a0/0x1a0 [ 119.722257] ? _down_write_nest_lock+0x120/0x120 [ 119.726994] ? __d_lookup+0x830/0x830 [ 119.730792] rpc_mkpipe_dentry+0xf8/0x360 [ 119.734931] rpc_fill_super+0x85e/0xae0 [ 119.738894] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 119.744084] ? security_capable+0x8e/0xc0 [ 119.748218] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 119.753387] ? ns_capable_common+0xcf/0x160 [ 119.757693] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 119.762865] mount_ns+0xc4/0x190 [ 119.766220] rpc_mount+0x9e/0xd0 [ 119.769574] mount_fs+0x66/0x2d0 [ 119.772930] vfs_kern_mount.part.26+0xc6/0x4a0 [ 119.777500] ? may_umount+0xa0/0xa0 [ 119.781108] ? _raw_read_unlock+0x22/0x30 [ 119.785238] ? __get_fs_type+0x8a/0xc0 [ 119.789119] do_mount+0xea4/0x2bb0 [ 119.792643] ? __might_fault+0x110/0x1d0 [ 119.796697] ? copy_mount_string+0x40/0x40 [ 119.800914] ? check_same_owner+0x320/0x320 [ 119.805217] ? __check_object_size+0x8b/0x530 [ 119.809706] ? __might_sleep+0x95/0x190 [ 119.813675] ? kasan_check_write+0x14/0x20 [ 119.817890] ? _copy_from_user+0x99/0x110 [ 119.822026] ? memdup_user+0x5e/0x90 [ 119.825721] ? copy_mount_options+0x1f7/0x2e0 [ 119.830214] SyS_mount+0xab/0x120 [ 119.833649] ? copy_mnt_ns+0xb30/0xb30 [ 119.837523] do_syscall_64+0x281/0x940 [ 119.841392] ? __do_page_fault+0xc90/0xc90 [ 119.845955] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 119.850696] ? syscall_return_slowpath+0x550/0x550 [ 119.855608] ? syscall_return_slowpath+0x2ac/0x550 [ 119.860521] ? prepare_exit_to_usermode+0x350/0x350 [ 119.865523] ? entry_SYSCALL_64_after_hwframe+0x52/0xb7 [ 119.870875] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 119.875709] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 119.880877] RIP: 0033:0x442da9 [ 119.884045] RSP: 002b:00007ffd459c4fa8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 119.891735] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000442da9 [ 119.898986] RDX: 0000000020000480 RSI: 0000000020000180 RDI: 0000000020000100 [ 119.906237] RBP: 00007ffd459c5850 R08: 0000000000000000 R09: 0000000300000000 executing program [ 119.913485] R10: 0000000000200000 R11: 0000000000000246 R12: ffffffffffffffff [ 119.920736] R13: 0000000000000006 R14: 0000000000001380 R15: 00007ffd459c50e8 [ 119.928031] CPU: 0 PID: 4460 Comm: syzkaller513478 Not tainted 4.16.0-rc6+ #41 [ 119.935395] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 119.944733] Call Trace: [ 119.947295] dump_stack+0x194/0x24d [ 119.950898] ? arch_local_irq_restore+0x53/0x53 [ 119.955551] should_fail+0x8c0/0xa40 [ 119.959249] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 119.964328] ? __lock_is_held+0xb6/0x140 [ 119.968375] ? mark_held_locks+0xaf/0x100 [ 119.972511] ? __raw_spin_lock_init+0x1c/0x100 [ 119.977072] ? find_held_lock+0x35/0x1d0 [ 119.981117] ? __lock_is_held+0xb6/0x140 [ 119.985164] ? check_same_owner+0x320/0x320 [ 119.989459] ? d_alloc+0x269/0x340 [ 119.992973] ? rcu_note_context_switch+0x710/0x710 [ 119.997876] ? lock_release+0xa40/0xa40 [ 120.001861] should_failslab+0xec/0x120 [ 120.005818] kmem_cache_alloc+0x47/0x760 [ 120.009866] ? d_drop+0x51/0x60 [ 120.013133] ? rpc_i_callback+0x30/0x30 [ 120.017092] rpc_alloc_inode+0x1a/0x20 [ 120.020955] alloc_inode+0x65/0x180 [ 120.024569] new_inode_pseudo+0x69/0x190 [ 120.028601] ? prune_icache_sb+0x1a0/0x1a0 [ 120.032811] ? do_raw_spin_trylock+0x190/0x190 [ 120.037366] ? d_add+0xa70/0xa70 [ 120.040712] new_inode+0x1c/0x40 [ 120.044054] rpc_get_inode+0x20/0x1e0 [ 120.047831] __rpc_create_common+0x5d/0x1d0 [ 120.052130] rpc_mkpipe_dentry+0x122/0x360 [ 120.056341] rpc_fill_super+0x85e/0xae0 [ 120.060294] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 120.065473] ? security_capable+0x8e/0xc0 [ 120.069602] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 120.074775] ? ns_capable_common+0xcf/0x160 [ 120.079083] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 120.084248] mount_ns+0xc4/0x190 [ 120.087596] rpc_mount+0x9e/0xd0 [ 120.090939] mount_fs+0x66/0x2d0 [ 120.094283] vfs_kern_mount.part.26+0xc6/0x4a0 [ 120.098841] ? may_umount+0xa0/0xa0 [ 120.102443] ? _raw_read_unlock+0x22/0x30 [ 120.106564] ? __get_fs_type+0x8a/0xc0 [ 120.110446] do_mount+0xea4/0x2bb0 [ 120.113959] ? __might_fault+0x110/0x1d0 [ 120.118014] ? copy_mount_string+0x40/0x40 [ 120.122230] ? check_same_owner+0x320/0x320 [ 120.126526] ? __check_object_size+0x8b/0x530 [ 120.131008] ? __might_sleep+0x95/0x190 [ 120.134969] ? kasan_check_write+0x14/0x20 [ 120.139176] ? _copy_from_user+0x99/0x110 [ 120.143300] ? memdup_user+0x5e/0x90 [ 120.146998] ? copy_mount_options+0x1f7/0x2e0 [ 120.151475] SyS_mount+0xab/0x120 [ 120.154900] ? copy_mnt_ns+0xb30/0xb30 [ 120.158764] do_syscall_64+0x281/0x940 [ 120.162623] ? __do_page_fault+0xc90/0xc90 [ 120.166832] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 120.171563] ? syscall_return_slowpath+0x550/0x550 [ 120.176476] ? syscall_return_slowpath+0x2ac/0x550 [ 120.181382] ? prepare_exit_to_usermode+0x350/0x350 [ 120.186370] ? entry_SYSCALL_64_after_hwframe+0x52/0xb7 [ 120.191717] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 120.196542] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 120.201713] RIP: 0033:0x442da9 [ 120.204875] RSP: 002b:00007ffd459c4fa8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 executing program executing program [ 120.212554] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000442da9 [ 120.219802] RDX: 0000000020000480 RSI: 0000000020000180 RDI: 0000000020000100 [ 120.227049] RBP: 00007ffd459c5850 R08: 0000000000000000 R09: 0000000300000000 [ 120.234290] R10: 0000000000200000 R11: 0000000000000246 R12: ffffffffffffffff [ 120.241531] R13: 0000000000000006 R14: 0000000000001380 R15: 00007ffd459c50e8 [ 120.248843] net/sunrpc/rpc_pipe.c: __rpc_create_common failed to allocate inode for dentry gssd [ 120.258250] net/sunrpc/rpc_pipe.c: rpc_mkpipe_dentry() failed to create pipe clntXX/gssd (errno = -12) executing program executing program executing program [ 120.282362] FAULT_INJECTION: forcing a failure. [ 120.282362] name failslab, interval 1, probability 0, space 0, times 0 [ 120.293595] CPU: 1 PID: 4462 Comm: syzkaller513478 Not tainted 4.16.0-rc6+ #41 [ 120.300931] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 120.310285] Call Trace: [ 120.312855] dump_stack+0x194/0x24d [ 120.316466] ? arch_local_irq_restore+0x53/0x53 [ 120.321141] should_fail+0x8c0/0xa40 [ 120.324848] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 120.329935] ? __lock_is_held+0xb6/0x140 [ 120.333995] ? mark_held_locks+0xaf/0x100 [ 120.338127] ? __raw_spin_lock_init+0x1c/0x100 [ 120.342704] ? find_held_lock+0x35/0x1d0 [ 120.346751] ? __lock_is_held+0xb6/0x140 [ 120.350802] ? check_same_owner+0x320/0x320 [ 120.355106] ? d_alloc+0x269/0x340 [ 120.358630] ? rcu_note_context_switch+0x710/0x710 [ 120.363538] ? lock_release+0xa40/0xa40 [ 120.367494] should_failslab+0xec/0x120 [ 120.371451] kmem_cache_alloc+0x47/0x760 [ 120.375493] ? d_drop+0x51/0x60 [ 120.378749] ? rpc_i_callback+0x30/0x30 [ 120.382712] rpc_alloc_inode+0x1a/0x20 [ 120.386582] alloc_inode+0x65/0x180 [ 120.390189] new_inode_pseudo+0x69/0x190 [ 120.394227] ? prune_icache_sb+0x1a0/0x1a0 [ 120.398437] ? do_raw_spin_trylock+0x190/0x190 [ 120.402992] ? d_add+0xa70/0xa70 [ 120.406353] new_inode+0x1c/0x40 [ 120.409697] rpc_get_inode+0x20/0x1e0 [ 120.413477] __rpc_create_common+0x5d/0x1d0 [ 120.417781] rpc_mkpipe_dentry+0x122/0x360 [ 120.421995] rpc_fill_super+0x85e/0xae0 [ 120.425965] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 120.431157] ? security_capable+0x8e/0xc0 [ 120.435289] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 120.440451] ? ns_capable_common+0xcf/0x160 [ 120.444751] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 120.449923] mount_ns+0xc4/0x190 [ 120.453285] rpc_mount+0x9e/0xd0 [ 120.456643] mount_fs+0x66/0x2d0 [ 120.460009] vfs_kern_mount.part.26+0xc6/0x4a0 [ 120.464576] ? may_umount+0xa0/0xa0 [ 120.468180] ? _raw_read_unlock+0x22/0x30 [ 120.472305] ? __get_fs_type+0x8a/0xc0 [ 120.476174] do_mount+0xea4/0x2bb0 [ 120.479692] ? __might_fault+0x110/0x1d0 [ 120.483742] ? copy_mount_string+0x40/0x40 [ 120.487950] ? check_same_owner+0x320/0x320 [ 120.492247] ? __check_object_size+0x8b/0x530 [ 120.496722] ? __might_sleep+0x95/0x190 [ 120.500686] ? kasan_check_write+0x14/0x20 [ 120.504898] ? _copy_from_user+0x99/0x110 [ 120.509032] ? memdup_user+0x5e/0x90 [ 120.512733] ? copy_mount_options+0x1f7/0x2e0 [ 120.517210] SyS_mount+0xab/0x120 [ 120.520637] ? copy_mnt_ns+0xb30/0xb30 [ 120.524506] do_syscall_64+0x281/0x940 [ 120.528368] ? __do_page_fault+0xc90/0xc90 [ 120.532587] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 120.537322] ? syscall_return_slowpath+0x550/0x550 [ 120.542226] ? syscall_return_slowpath+0x2ac/0x550 [ 120.547135] ? prepare_exit_to_usermode+0x350/0x350 [ 120.552135] ? entry_SYSCALL_64_after_hwframe+0x52/0xb7 [ 120.557479] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 120.562303] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 120.567468] RIP: 0033:0x442da9 [ 120.570630] RSP: 002b:00007ffd459c4fa8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 executing program executing program [ 120.578311] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000442da9 [ 120.585558] RDX: 0000000020000480 RSI: 0000000020000180 RDI: 0000000020000100 [ 120.592807] RBP: 00007ffd459c5850 R08: 0000000000000000 R09: 0000000300000000 [ 120.600398] R10: 0000000000200000 R11: 0000000000000246 R12: ffffffffffffffff [ 120.607641] R13: 0000000000000006 R14: 0000000000001380 R15: 00007ffd459c50e8 [ 120.614982] net/sunrpc/rpc_pipe.c: __rpc_create_common failed to allocate inode for dentry gssd [ 120.623871] net/sunrpc/rpc_pipe.c: rpc_mkpipe_dentry() failed to create pipe clntXX/gssd (errno = -12) [ 120.650776] FAULT_INJECTION: forcing a failure. [ 120.650776] name failslab, interval 1, probability 0, space 0, times 0 [ 120.654895] FAULT_INJECTION: forcing a failure. [ 120.654895] name failslab, interval 1, probability 0, space 0, times 0 [ 120.662045] CPU: 0 PID: 4463 Comm: syzkaller513478 Not tainted 4.16.0-rc6+ #41 [ 120.662054] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 120.689912] Call Trace: [ 120.692486] dump_stack+0x194/0x24d [ 120.696099] ? arch_local_irq_restore+0x53/0x53 [ 120.700753] ? should_fail+0x8bb/0xa40 [ 120.704633] should_fail+0x8c0/0xa40 [ 120.708335] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 120.713432] ? __lock_is_held+0xb6/0x140 [ 120.717487] ? mark_held_locks+0xaf/0x100 [ 120.721622] ? __raw_spin_lock_init+0x1c/0x100 [ 120.726191] ? find_held_lock+0x35/0x1d0 [ 120.730242] ? __lock_is_held+0xb6/0x140 [ 120.734305] ? check_same_owner+0x320/0x320 [ 120.738615] ? d_alloc+0x269/0x340 [ 120.742138] ? rcu_note_context_switch+0x710/0x710 [ 120.747049] ? lock_release+0xa40/0xa40 [ 120.751018] should_failslab+0xec/0x120 [ 120.754975] kmem_cache_alloc+0x47/0x760 [ 120.759026] ? d_drop+0x51/0x60 [ 120.762290] ? rpc_i_callback+0x30/0x30 [ 120.766250] rpc_alloc_inode+0x1a/0x20 [ 120.770120] alloc_inode+0x65/0x180 [ 120.773732] new_inode_pseudo+0x69/0x190 [ 120.777773] ? prune_icache_sb+0x1a0/0x1a0 [ 120.781989] ? do_raw_spin_trylock+0x190/0x190 [ 120.786558] ? d_add+0xa70/0xa70 [ 120.789917] new_inode+0x1c/0x40 [ 120.793265] rpc_get_inode+0x20/0x1e0 [ 120.797051] __rpc_create_common+0x5d/0x1d0 [ 120.801362] rpc_mkpipe_dentry+0x122/0x360 [ 120.805585] rpc_fill_super+0x85e/0xae0 [ 120.809550] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 120.814727] ? security_capable+0x8e/0xc0 [ 120.818861] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 120.824035] ? ns_capable_common+0xcf/0x160 [ 120.828341] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 120.833514] mount_ns+0xc4/0x190 [ 120.836868] rpc_mount+0x9e/0xd0 [ 120.840221] mount_fs+0x66/0x2d0 [ 120.843580] vfs_kern_mount.part.26+0xc6/0x4a0 [ 120.848150] ? may_umount+0xa0/0xa0 [ 120.851759] ? _raw_read_unlock+0x22/0x30 [ 120.855887] ? __get_fs_type+0x8a/0xc0 [ 120.859765] do_mount+0xea4/0x2bb0 [ 120.863283] ? __might_fault+0x110/0x1d0 [ 120.867338] ? copy_mount_string+0x40/0x40 [ 120.871552] ? check_same_owner+0x320/0x320 [ 120.875858] ? __check_object_size+0x8b/0x530 [ 120.880346] ? __might_sleep+0x95/0x190 [ 120.884312] ? kasan_check_write+0x14/0x20 [ 120.888529] ? _copy_from_user+0x99/0x110 [ 120.892663] ? memdup_user+0x5e/0x90 [ 120.896356] ? copy_mount_options+0x1f7/0x2e0 [ 120.900842] SyS_mount+0xab/0x120 [ 120.904278] ? copy_mnt_ns+0xb30/0xb30 [ 120.908150] do_syscall_64+0x281/0x940 [ 120.912021] ? __do_page_fault+0xc90/0xc90 [ 120.916241] ? trace_event_raw_event_sys_exit+0x260/0x260 [ 120.921763] ? syscall_return_slowpath+0x550/0x550 [ 120.926677] ? syscall_return_slowpath+0x2ac/0x550 [ 120.931600] ? entry_SYSCALL_64_after_hwframe+0x52/0xb7 [ 120.936951] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 120.941784] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 120.946952] RIP: 0033:0x442da9 [ 120.950121] RSP: 002b:00007ffd459c4fa8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 120.957809] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000442da9 [ 120.965058] RDX: 0000000020000480 RSI: 0000000020000180 RDI: 0000000020000100 [ 120.972307] RBP: 00007ffd459c5850 R08: 0000000000000000 R09: 0000000300000000 [ 120.979555] R10: 0000000000200000 R11: 0000000000000246 R12: ffffffffffffffff [ 120.986807] R13: 0000000000000006 R14: 0000000000001380 R15: 00007ffd459c50e8 [ 120.994092] CPU: 1 PID: 4465 Comm: syzkaller513478 Not tainted 4.16.0-rc6+ #41 [ 120.994235] net/sunrpc/rpc_pipe.c: __rpc_create_common failed to allocate inode for dentry gssd [ 121.001436] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 121.001440] Call Trace: [ 121.001452] dump_stack+0x194/0x24d [ 121.001470] ? arch_local_irq_restore+0x53/0x53 [ 121.011433] FAULT_INJECTION: forcing a failure. [ 121.011433] name failslab, interval 1, probability 0, space 0, times 0 [ 121.019630] should_fail+0x8c0/0xa40 [ 121.019647] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 121.019661] ? __lock_is_held+0xb6/0x140 [ 121.054408] ? mark_held_locks+0xaf/0x100 [ 121.058541] ? __raw_spin_lock_init+0x1c/0x100 [ 121.063115] ? find_held_lock+0x35/0x1d0 [ 121.067166] ? __lock_is_held+0xb6/0x140 [ 121.071229] ? check_same_owner+0x320/0x320 [ 121.075534] ? d_alloc+0x269/0x340 [ 121.079059] ? rcu_note_context_switch+0x710/0x710 [ 121.083972] ? lock_release+0xa40/0xa40 [ 121.087939] should_failslab+0xec/0x120 [ 121.091901] kmem_cache_alloc+0x47/0x760 [ 121.095951] ? d_drop+0x51/0x60 [ 121.099216] ? rpc_i_callback+0x30/0x30 [ 121.103175] rpc_alloc_inode+0x1a/0x20 [ 121.107046] alloc_inode+0x65/0x180 [ 121.110658] new_inode_pseudo+0x69/0x190 [ 121.114701] ? prune_icache_sb+0x1a0/0x1a0 [ 121.118915] ? do_raw_spin_trylock+0x190/0x190 [ 121.123477] ? d_add+0xa70/0xa70 [ 121.126833] new_inode+0x1c/0x40 [ 121.130183] rpc_get_inode+0x20/0x1e0 [ 121.133970] __rpc_create_common+0x5d/0x1d0 [ 121.138284] rpc_mkpipe_dentry+0x122/0x360 [ 121.142509] rpc_fill_super+0x85e/0xae0 [ 121.146473] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 121.151650] ? security_capable+0x8e/0xc0 [ 121.155784] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 121.160953] ? ns_capable_common+0xcf/0x160 [ 121.165261] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 121.170433] mount_ns+0xc4/0x190 [ 121.173790] rpc_mount+0x9e/0xd0 [ 121.177149] mount_fs+0x66/0x2d0 [ 121.180506] vfs_kern_mount.part.26+0xc6/0x4a0 [ 121.185081] ? may_umount+0xa0/0xa0 [ 121.188692] ? _raw_read_unlock+0x22/0x30 [ 121.192824] ? __get_fs_type+0x8a/0xc0 [ 121.196703] do_mount+0xea4/0x2bb0 [ 121.200223] ? __might_fault+0x110/0x1d0 [ 121.204277] ? copy_mount_string+0x40/0x40 [ 121.208492] ? check_same_owner+0x320/0x320 [ 121.212797] ? __check_object_size+0x8b/0x530 [ 121.217284] ? __might_sleep+0x95/0x190 [ 121.221250] ? kasan_check_write+0x14/0x20 [ 121.225467] ? _copy_from_user+0x99/0x110 [ 121.229602] ? memdup_user+0x5e/0x90 [ 121.233295] ? copy_mount_options+0x1f7/0x2e0 [ 121.237780] SyS_mount+0xab/0x120 [ 121.241215] ? copy_mnt_ns+0xb30/0xb30 [ 121.245091] do_syscall_64+0x281/0x940 [ 121.248960] ? __do_page_fault+0xc90/0xc90 [ 121.253176] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 121.257919] ? syscall_return_slowpath+0x550/0x550 [ 121.262829] ? syscall_return_slowpath+0x2ac/0x550 [ 121.267740] ? prepare_exit_to_usermode+0x350/0x350 [ 121.272737] ? entry_SYSCALL_64_after_hwframe+0x52/0xb7 [ 121.278095] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 121.282932] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 121.288100] RIP: 0033:0x442da9 [ 121.291272] RSP: 002b:00007ffd459c4fa8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 121.298965] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000442da9 [ 121.306215] RDX: 0000000020000480 RSI: 0000000020000180 RDI: 0000000020000100 [ 121.313468] RBP: 00007ffd459c5850 R08: 0000000000000000 R09: 0000000300000000 [ 121.320720] R10: 0000000000200000 R11: 0000000000000246 R12: ffffffffffffffff [ 121.327969] R13: 0000000000000006 R14: 0000000000001380 R15: 00007ffd459c50e8 [ 121.335252] CPU: 0 PID: 4464 Comm: syzkaller513478 Not tainted 4.16.0-rc6+ #41 [ 121.335405] net/sunrpc/rpc_pipe.c: __rpc_create_common failed to allocate inode for dentry gssd [ 121.342593] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 121.342597] Call Trace: [ 121.342610] dump_stack+0x194/0x24d [ 121.342624] ? arch_local_irq_restore+0x53/0x53 [ 121.353545] net/sunrpc/rpc_pipe.c: rpc_mkpipe_dentry() failed to create pipe clntXX/gssd (errno = -12) [ 121.361136] should_fail+0x8c0/0xa40 [ 121.361153] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 121.361165] ? __lock_is_held+0xb6/0x140 [ 121.361180] ? mark_held_locks+0xaf/0x100 [ 121.361192] ? __raw_spin_lock_init+0x1c/0x100 [ 121.361209] ? find_held_lock+0x35/0x1d0 [ 121.361227] ? __lock_is_held+0xb6/0x140 [ 121.361258] ? check_same_owner+0x320/0x320 [ 121.361268] ? d_alloc+0x269/0x340 [ 121.366870] FAULT_INJECTION: forcing a failure. [ 121.366870] name failslab, interval 1, probability 0, space 0, times 0 [ 121.367441] ? rcu_note_context_switch+0x710/0x710 [ 121.367450] ? lock_release+0xa40/0xa40 [ 121.367474] should_failslab+0xec/0x120 [ 121.367484] kmem_cache_alloc+0x47/0x760 [ 121.447309] ? d_drop+0x51/0x60 [ 121.450577] ? rpc_i_callback+0x30/0x30 [ 121.454536] rpc_alloc_inode+0x1a/0x20 [ 121.458407] alloc_inode+0x65/0x180 [ 121.462019] new_inode_pseudo+0x69/0x190 [ 121.466062] ? prune_icache_sb+0x1a0/0x1a0 [ 121.470277] ? do_raw_spin_trylock+0x190/0x190 [ 121.474842] ? d_add+0xa70/0xa70 [ 121.478202] new_inode+0x1c/0x40 [ 121.481556] rpc_get_inode+0x20/0x1e0 [ 121.485342] __rpc_create_common+0x5d/0x1d0 [ 121.489656] rpc_mkpipe_dentry+0x122/0x360 [ 121.493879] rpc_fill_super+0x85e/0xae0 [ 121.497842] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 121.503024] ? security_capable+0x8e/0xc0 [ 121.507158] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 121.512330] ? ns_capable_common+0xcf/0x160 [ 121.516642] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 121.521813] mount_ns+0xc4/0x190 [ 121.525170] rpc_mount+0x9e/0xd0 [ 121.528521] mount_fs+0x66/0x2d0 [ 121.531879] vfs_kern_mount.part.26+0xc6/0x4a0 [ 121.536448] ? may_umount+0xa0/0xa0 [ 121.540061] ? _raw_read_unlock+0x22/0x30 [ 121.544192] ? __get_fs_type+0x8a/0xc0 [ 121.548073] do_mount+0xea4/0x2bb0 [ 121.551594] ? __might_fault+0x110/0x1d0 [ 121.555646] ? copy_mount_string+0x40/0x40 [ 121.559864] ? check_same_owner+0x320/0x320 [ 121.564170] ? __check_object_size+0x8b/0x530 [ 121.568657] ? __might_sleep+0x95/0x190 [ 121.572625] ? kasan_check_write+0x14/0x20 [ 121.576843] ? _copy_from_user+0x99/0x110 [ 121.580983] ? memdup_user+0x5e/0x90 [ 121.584681] ? copy_mount_options+0x1f7/0x2e0 [ 121.589166] SyS_mount+0xab/0x120 [ 121.592602] ? copy_mnt_ns+0xb30/0xb30 [ 121.596477] do_syscall_64+0x281/0x940 [ 121.600352] ? __do_page_fault+0xc90/0xc90 [ 121.604568] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 121.609309] ? syscall_return_slowpath+0x550/0x550 [ 121.614221] ? syscall_return_slowpath+0x2ac/0x550 [ 121.619136] ? prepare_exit_to_usermode+0x350/0x350 [ 121.624135] ? entry_SYSCALL_64_after_hwframe+0x52/0xb7 [ 121.629488] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 121.634321] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 121.639493] RIP: 0033:0x442da9 [ 121.642662] RSP: 002b:00007ffd459c4fa8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 121.650351] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000442da9 [ 121.657603] RDX: 0000000020000480 RSI: 0000000020000180 RDI: 0000000020000100 [ 121.664851] RBP: 00007ffd459c5850 R08: 0000000000000000 R09: 0000000300000000 [ 121.672103] R10: 0000000000200000 R11: 0000000000000246 R12: ffffffffffffffff [ 121.679353] R13: 0000000000000006 R14: 0000000000001380 R15: 00007ffd459c50e8 [ 121.686632] CPU: 1 PID: 4467 Comm: syzkaller513478 Not tainted 4.16.0-rc6+ #41 [ 121.686770] net/sunrpc/rpc_pipe.c: __rpc_create_common failed to allocate inode for dentry gssd [ 121.693973] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 121.693977] Call Trace: [ 121.693988] dump_stack+0x194/0x24d [ 121.694003] ? arch_local_irq_restore+0x53/0x53 [ 121.694035] should_fail+0x8c0/0xa40 [ 121.702872] net/sunrpc/rpc_pipe.c: rpc_mkpipe_dentry() failed to create pipe clntXX/gssd (errno = -12) [ 121.712159] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 121.712176] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 121.712182] ? __lock_acquire+0x664/0x3e00 [ 121.712198] ? __lock_acquire+0x664/0x3e00 [ 121.715450] FAULT_INJECTION: forcing a failure. [ 121.715450] name failslab, interval 1, probability 0, space 0, times 0 [ 121.718389] ? find_held_lock+0x35/0x1d0 [ 121.718408] ? __lock_is_held+0xb6/0x140 [ 121.774036] ? check_same_owner+0x320/0x320 [ 121.778340] ? __d_lookup+0x4f4/0x830 [ 121.782126] ? rcu_note_context_switch+0x710/0x710 [ 121.787053] should_failslab+0xec/0x120 [ 121.791021] kmem_cache_alloc+0x47/0x760 [ 121.795084] __d_alloc+0xc1/0xbd0 [ 121.798527] ? shrink_dcache_for_umount+0x290/0x290 [ 121.803530] ? d_alloc_parallel+0x1b40/0x1b40 [ 121.808013] ? lock_release+0xa40/0xa40 [ 121.811983] ? mark_held_locks+0xaf/0x100 [ 121.816134] ? d_lookup+0x133/0x2e0 [ 121.819752] ? d_lookup+0x1d5/0x2e0 [ 121.823359] ? current_kernel_time64+0x1d4/0x2f0 [ 121.828105] d_alloc+0x8e/0x340 [ 121.831372] ? __d_alloc+0xbd0/0xbd0 [ 121.835068] ? full_name_hash+0x9b/0xe0 [ 121.839047] __rpc_lookup_create_exclusive+0x183/0x1d0 [ 121.844303] ? down_write_nested+0x8b/0x120 [ 121.848606] ? rpc_d_lookup_sb+0x1a0/0x1a0 [ 121.852818] ? _down_write_nest_lock+0x120/0x120 [ 121.857554] ? __d_lookup+0x830/0x830 [ 121.861348] rpc_mkpipe_dentry+0xf8/0x360 [ 121.865487] rpc_fill_super+0x85e/0xae0 [ 121.869450] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 121.874632] ? security_capable+0x8e/0xc0 [ 121.878767] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 121.883936] ? ns_capable_common+0xcf/0x160 [ 121.888243] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 121.893589] mount_ns+0xc4/0x190 [ 121.896945] rpc_mount+0x9e/0xd0 [ 121.900298] mount_fs+0x66/0x2d0 [ 121.903652] vfs_kern_mount.part.26+0xc6/0x4a0 [ 121.908220] ? may_umount+0xa0/0xa0 [ 121.911829] ? _raw_read_unlock+0x22/0x30 [ 121.915958] ? __get_fs_type+0x8a/0xc0 [ 121.919838] do_mount+0xea4/0x2bb0 [ 121.923358] ? __might_fault+0x110/0x1d0 [ 121.927410] ? copy_mount_string+0x40/0x40 [ 121.931627] ? check_same_owner+0x320/0x320 [ 121.935933] ? __check_object_size+0x8b/0x530 [ 121.940421] ? __might_sleep+0x95/0x190 [ 121.944388] ? kasan_check_write+0x14/0x20 [ 121.948604] ? _copy_from_user+0x99/0x110 [ 121.952742] ? memdup_user+0x5e/0x90 [ 121.956525] ? copy_mount_options+0x1f7/0x2e0 [ 121.961013] SyS_mount+0xab/0x120 [ 121.964451] ? copy_mnt_ns+0xb30/0xb30 [ 121.968324] do_syscall_64+0x281/0x940 [ 121.972190] ? __do_page_fault+0xc90/0xc90 [ 121.976406] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 121.981146] ? syscall_return_slowpath+0x550/0x550 [ 121.986057] ? syscall_return_slowpath+0x2ac/0x550 [ 121.990973] ? prepare_exit_to_usermode+0x350/0x350 [ 121.995975] ? entry_SYSCALL_64_after_hwframe+0x52/0xb7 [ 122.001333] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 122.006167] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 122.011335] RIP: 0033:0x442da9 [ 122.014503] RSP: 002b:00007ffd459c4fa8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 122.022190] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000442da9 [ 122.029441] RDX: 0000000020000480 RSI: 0000000020000180 RDI: 0000000020000100 [ 122.036694] RBP: 00007ffd459c5850 R08: 0000000000000000 R09: 0000000300000000 [ 122.043944] R10: 0000000000200000 R11: 0000000000000246 R12: ffffffffffffffff [ 122.051192] R13: 0000000000000006 R14: 0000000000001380 R15: 00007ffd459c50e8 [ 122.058473] CPU: 0 PID: 4466 Comm: syzkaller513478 Not tainted 4.16.0-rc6+ #41 [ 122.065841] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 122.075177] Call Trace: [ 122.077743] dump_stack+0x194/0x24d [ 122.081349] ? arch_local_irq_restore+0x53/0x53 [ 122.086003] should_fail+0x8c0/0xa40 [ 122.089698] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 122.094787] ? __lock_is_held+0xb6/0x140 [ 122.098832] ? mark_held_locks+0xaf/0x100 [ 122.102953] ? __raw_spin_lock_init+0x1c/0x100 [ 122.107518] ? find_held_lock+0x35/0x1d0 [ 122.111556] ? __lock_is_held+0xb6/0x140 [ 122.113491] net/sunrpc/rpc_pipe.c: rpc_mkpipe_dentry() failed to create pipe clntXX/gssd (errno = -12) [ 122.115616] ? check_same_owner+0x320/0x320 [ 122.115627] ? d_alloc+0x269/0x340 [ 122.115640] ? rcu_note_context_switch+0x710/0x710 [ 122.115647] ? lock_release+0xa40/0xa40 [ 122.115668] should_failslab+0xec/0x120 [ 122.129933] FAULT_INJECTION: forcing a failure. [ 122.129933] name failslab, interval 1, probability 0, space 0, times 0 [ 122.132894] kmem_cache_alloc+0x47/0x760 [ 122.132912] ? d_drop+0x51/0x60 [ 122.132925] ? rpc_i_callback+0x30/0x30 [ 122.132938] rpc_alloc_inode+0x1a/0x20 [ 122.132947] alloc_inode+0x65/0x180 [ 122.132957] new_inode_pseudo+0x69/0x190 [ 122.179629] ? prune_icache_sb+0x1a0/0x1a0 [ 122.183844] ? do_raw_spin_trylock+0x190/0x190 [ 122.188414] ? d_add+0xa70/0xa70 [ 122.191776] new_inode+0x1c/0x40 [ 122.195125] rpc_get_inode+0x20/0x1e0 [ 122.198912] __rpc_create_common+0x5d/0x1d0 [ 122.203225] rpc_mkpipe_dentry+0x122/0x360 [ 122.207449] rpc_fill_super+0x85e/0xae0 [ 122.211411] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 122.216592] ? security_capable+0x8e/0xc0 [ 122.220725] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 122.225897] ? ns_capable_common+0xcf/0x160 [ 122.230204] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 122.235376] mount_ns+0xc4/0x190 [ 122.238734] rpc_mount+0x9e/0xd0 [ 122.242087] mount_fs+0x66/0x2d0 [ 122.245446] vfs_kern_mount.part.26+0xc6/0x4a0 [ 122.250015] ? may_umount+0xa0/0xa0 [ 122.253629] ? _raw_read_unlock+0x22/0x30 [ 122.257759] ? __get_fs_type+0x8a/0xc0 [ 122.261641] do_mount+0xea4/0x2bb0 [ 122.265162] ? __might_fault+0x110/0x1d0 [ 122.269214] ? copy_mount_string+0x40/0x40 [ 122.273429] ? check_same_owner+0x320/0x320 [ 122.277734] ? __check_object_size+0x8b/0x530 [ 122.282221] ? __might_sleep+0x95/0x190 [ 122.286189] ? kasan_check_write+0x14/0x20 [ 122.290406] ? _copy_from_user+0x99/0x110 [ 122.294540] ? memdup_user+0x5e/0x90 [ 122.298234] ? copy_mount_options+0x1f7/0x2e0 [ 122.302718] SyS_mount+0xab/0x120 [ 122.306156] ? copy_mnt_ns+0xb30/0xb30 [ 122.310030] do_syscall_64+0x281/0x940 [ 122.313900] ? __do_page_fault+0xc90/0xc90 [ 122.318117] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 122.322871] ? syscall_return_slowpath+0x550/0x550 [ 122.327783] ? syscall_return_slowpath+0x2ac/0x550 [ 122.332696] ? prepare_exit_to_usermode+0x350/0x350 [ 122.337696] ? entry_SYSCALL_64_after_hwframe+0x52/0xb7 [ 122.343050] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 122.347888] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 122.353055] RIP: 0033:0x442da9 [ 122.356228] RSP: 002b:00007ffd459c4fa8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 122.363919] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000442da9 [ 122.371168] RDX: 0000000020000480 RSI: 0000000020000180 RDI: 0000000020000100 [ 122.378418] RBP: 00007ffd459c5850 R08: 0000000000000000 R09: 0000000300000000 [ 122.385667] R10: 0000000000200000 R11: 0000000000000246 R12: ffffffffffffffff [ 122.392914] R13: 0000000000000006 R14: 0000000000001380 R15: 00007ffd459c50e8 [ 122.400192] CPU: 1 PID: 4468 Comm: syzkaller513478 Not tainted 4.16.0-rc6+ #41 [ 122.400395] net/sunrpc/rpc_pipe.c: __rpc_create_common failed to allocate inode for dentry gssd [ 122.407536] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 122.407540] Call Trace: [ 122.407553] dump_stack+0x194/0x24d [ 122.407567] ? arch_local_irq_restore+0x53/0x53 [ 122.407594] should_fail+0x8c0/0xa40 [ 122.419198] net/sunrpc/rpc_pipe.c: rpc_mkpipe_dentry() failed to create pipe clntXX/gssd (errno = -12) [ 122.425725] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 122.425742] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 122.425749] ? __lock_acquire+0x664/0x3e00 [ 122.425765] ? __lock_acquire+0x664/0x3e00 [ 122.468331] ? find_held_lock+0x35/0x1d0 [ 122.472374] ? __lock_is_held+0xb6/0x140 [ 122.476422] ? check_same_owner+0x320/0x320 [ 122.480719] ? __d_lookup+0x4f4/0x830 [ 122.484497] ? rcu_note_context_switch+0x710/0x710 [ 122.489410] should_failslab+0xec/0x120 [ 122.493364] kmem_cache_alloc+0x47/0x760 [ 122.497416] __d_alloc+0xc1/0xbd0 [ 122.500845] ? shrink_dcache_for_umount+0x290/0x290 [ 122.505837] ? d_alloc_parallel+0x1b40/0x1b40 [ 122.510310] ? lock_release+0xa40/0xa40 [ 122.514263] ? mark_held_locks+0xaf/0x100 [ 122.518384] ? d_lookup+0x133/0x2e0 [ 122.522004] ? d_lookup+0x1d5/0x2e0 [ 122.525612] ? current_kernel_time64+0x1d4/0x2f0 [ 122.530345] d_alloc+0x8e/0x340 [ 122.533600] ? __d_alloc+0xbd0/0xbd0 [ 122.537288] ? full_name_hash+0x9b/0xe0 [ 122.541254] __rpc_lookup_create_exclusive+0x183/0x1d0 [ 122.546505] ? down_write_nested+0x8b/0x120 [ 122.550806] ? rpc_d_lookup_sb+0x1a0/0x1a0 [ 122.555025] ? _down_write_nest_lock+0x120/0x120 [ 122.559758] ? __d_lookup+0x830/0x830 [ 122.563550] rpc_mkpipe_dentry+0xf8/0x360 [ 122.567680] rpc_fill_super+0x85e/0xae0 [ 122.571635] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 122.576813] ? security_capable+0x8e/0xc0 [ 122.580956] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 122.586128] ? ns_capable_common+0xcf/0x160 [ 122.590427] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 122.595590] mount_ns+0xc4/0x190 [ 122.598934] rpc_mount+0x9e/0xd0 [ 122.602280] mount_fs+0x66/0x2d0 [ 122.605623] vfs_kern_mount.part.26+0xc6/0x4a0 [ 122.610181] ? may_umount+0xa0/0xa0 [ 122.613874] ? _raw_read_unlock+0x22/0x30 [ 122.617997] ? __get_fs_type+0x8a/0xc0 [ 122.621871] do_mount+0xea4/0x2bb0 [ 122.625384] ? __might_fault+0x110/0x1d0 [ 122.629427] ? copy_mount_string+0x40/0x40 [ 122.633641] ? check_same_owner+0x320/0x320 [ 122.637947] ? __check_object_size+0x8b/0x530 [ 122.642436] ? __might_sleep+0x95/0x190 [ 122.646398] ? kasan_check_write+0x14/0x20 [ 122.650609] ? _copy_from_user+0x99/0x110 [ 122.654734] ? memdup_user+0x5e/0x90 [ 122.658420] ? copy_mount_options+0x1f7/0x2e0 [ 122.662894] SyS_mount+0xab/0x120 [ 122.666322] ? copy_mnt_ns+0xb30/0xb30 [ 122.670186] do_syscall_64+0x281/0x940 [ 122.674049] ? __do_page_fault+0xc90/0xc90 [ 122.678260] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 122.682993] ? syscall_return_slowpath+0x550/0x550 [ 122.687901] ? syscall_return_slowpath+0x2ac/0x550 [ 122.692806] ? prepare_exit_to_usermode+0x350/0x350 [ 122.697811] ? entry_SYSCALL_64_after_hwframe+0x52/0xb7 [ 122.703155] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 122.707983] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 122.713146] RIP: 0033:0x442da9 [ 122.716308] RSP: 002b:00007ffd459c4fa8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 122.723988] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000442da9 [ 122.731245] RDX: 0000000020000480 RSI: 0000000020000180 RDI: 0000000020000100 [ 122.738489] RBP: 00007ffd459c5850 R08: 0000000000000000 R09: 0000000300000000 [ 122.745743] R10: 0000000000200000 R11: 0000000000000246 R12: ffffffffffffffff [ 122.752990] R13: 0000000000000006 R14: 0000000000001380 R15: 00007ffd459c50e8 executing program executing program executing program executing program executing program executing program [ 122.780079] FAULT_INJECTION: forcing a failure. [ 122.780079] name failslab, interval 1, probability 0, space 0, times 0 [ 122.791439] CPU: 0 PID: 4469 Comm: syzkaller513478 Not tainted 4.16.0-rc6+ #41 [ 122.794966] FAULT_INJECTION: forcing a failure. [ 122.794966] name failslab, interval 1, probability 0, space 0, times 0 [ 122.798790] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 122.798794] Call Trace: [ 122.798810] dump_stack+0x194/0x24d [ 122.798826] ? arch_local_irq_restore+0x53/0x53 [ 122.798854] should_fail+0x8c0/0xa40 [ 122.833833] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 122.838924] ? __lock_is_held+0xb6/0x140 [ 122.842972] ? mark_held_locks+0xaf/0x100 [ 122.847103] ? __raw_spin_lock_init+0x1c/0x100 [ 122.851673] ? find_held_lock+0x35/0x1d0 [ 122.855723] ? __lock_is_held+0xb6/0x140 [ 122.859785] ? check_same_owner+0x320/0x320 [ 122.864090] ? d_alloc+0x269/0x340 [ 122.867617] ? rcu_note_context_switch+0x710/0x710 [ 122.872525] ? lock_release+0xa40/0xa40 [ 122.876493] should_failslab+0xec/0x120 [ 122.880449] kmem_cache_alloc+0x47/0x760 [ 122.884496] ? d_drop+0x51/0x60 [ 122.887760] ? rpc_i_callback+0x30/0x30 [ 122.891717] rpc_alloc_inode+0x1a/0x20 [ 122.895585] alloc_inode+0x65/0x180 [ 122.899196] new_inode_pseudo+0x69/0x190 [ 122.903241] ? prune_icache_sb+0x1a0/0x1a0 [ 122.907461] ? do_raw_spin_trylock+0x190/0x190 [ 122.912028] ? d_add+0xa70/0xa70 [ 122.915384] new_inode+0x1c/0x40 [ 122.918731] rpc_get_inode+0x20/0x1e0 [ 122.922519] __rpc_create_common+0x5d/0x1d0 [ 122.926829] rpc_mkpipe_dentry+0x122/0x360 [ 122.931053] rpc_fill_super+0x85e/0xae0 [ 122.935020] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 122.940199] ? security_capable+0x8e/0xc0 [ 122.944331] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 122.949504] ? ns_capable_common+0xcf/0x160 [ 122.953812] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 122.958985] mount_ns+0xc4/0x190 [ 122.962362] rpc_mount+0x9e/0xd0 [ 122.965714] mount_fs+0x66/0x2d0 [ 122.969073] vfs_kern_mount.part.26+0xc6/0x4a0 [ 122.973639] ? may_umount+0xa0/0xa0 [ 122.977250] ? _raw_read_unlock+0x22/0x30 [ 122.981378] ? __get_fs_type+0x8a/0xc0 [ 122.985258] do_mount+0xea4/0x2bb0 [ 122.988779] ? __might_fault+0x110/0x1d0 [ 122.992833] ? copy_mount_string+0x40/0x40 [ 122.997049] ? check_same_owner+0x320/0x320 [ 123.001352] ? __check_object_size+0x8b/0x530 [ 123.005842] ? __might_sleep+0x95/0x190 [ 123.009808] ? kasan_check_write+0x14/0x20 [ 123.014025] ? _copy_from_user+0x99/0x110 [ 123.018162] ? memdup_user+0x5e/0x90 [ 123.021857] ? copy_mount_options+0x1f7/0x2e0 [ 123.026341] SyS_mount+0xab/0x120 [ 123.029778] ? copy_mnt_ns+0xb30/0xb30 [ 123.033651] do_syscall_64+0x281/0x940 [ 123.037519] ? __do_page_fault+0xc90/0xc90 [ 123.041735] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 123.046474] ? syscall_return_slowpath+0x550/0x550 [ 123.051388] ? syscall_return_slowpath+0x2ac/0x550 [ 123.056305] ? prepare_exit_to_usermode+0x350/0x350 [ 123.061308] ? entry_SYSCALL_64_after_hwframe+0x52/0xb7 [ 123.066661] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 123.071496] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 123.076668] RIP: 0033:0x442da9 [ 123.079837] RSP: 002b:00007ffd459c4fa8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 123.087525] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000442da9 [ 123.094776] RDX: 0000000020000480 RSI: 0000000020000180 RDI: 0000000020000100 [ 123.102026] RBP: 00007ffd459c5850 R08: 0000000000000000 R09: 0000000300000000 [ 123.109276] R10: 0000000000200000 R11: 0000000000000246 R12: ffffffffffffffff [ 123.116524] R13: 0000000000000006 R14: 0000000000001380 R15: 00007ffd459c50e8 [ 123.123806] CPU: 1 PID: 4470 Comm: syzkaller513478 Not tainted 4.16.0-rc6+ #41 [ 123.123929] net/sunrpc/rpc_pipe.c: __rpc_create_common failed to allocate inode for dentry gssd [ 123.131149] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 123.131152] Call Trace: [ 123.131166] dump_stack+0x194/0x24d [ 123.131184] ? arch_local_irq_restore+0x53/0x53 [ 123.142712] net/sunrpc/rpc_pipe.c: rpc_mkpipe_dentry() failed to create pipe clntXX/gssd (errno = -12) [ 123.149346] should_fail+0x8c0/0xa40 [ 123.149363] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 123.149377] ? __lock_is_held+0xb6/0x140 [ 123.149393] ? mark_held_locks+0xaf/0x100 [ 123.149403] ? __raw_spin_lock_init+0x1c/0x100 [ 123.149418] ? find_held_lock+0x35/0x1d0 [ 123.195115] ? __lock_is_held+0xb6/0x140 [ 123.199166] ? check_same_owner+0x320/0x320 [ 123.203462] ? d_alloc+0x269/0x340 [ 123.206984] ? rcu_note_context_switch+0x710/0x710 [ 123.211899] ? lock_release+0xa40/0xa40 [ 123.215860] should_failslab+0xec/0x120 [ 123.219818] kmem_cache_alloc+0x47/0x760 [ 123.223858] ? d_drop+0x51/0x60 [ 123.227114] ? rpc_i_callback+0x30/0x30 [ 123.231065] rpc_alloc_inode+0x1a/0x20 [ 123.234942] alloc_inode+0x65/0x180 [ 123.238554] new_inode_pseudo+0x69/0x190 [ 123.242594] ? prune_icache_sb+0x1a0/0x1a0 [ 123.246819] ? do_raw_spin_trylock+0x190/0x190 [ 123.251396] ? d_add+0xa70/0xa70 [ 123.254746] new_inode+0x1c/0x40 [ 123.258090] rpc_get_inode+0x20/0x1e0 [ 123.261869] __rpc_create_common+0x5d/0x1d0 [ 123.266172] rpc_mkpipe_dentry+0x122/0x360 [ 123.270385] rpc_fill_super+0x85e/0xae0 [ 123.274339] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 123.279508] ? security_capable+0x8e/0xc0 [ 123.283643] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 123.288814] ? ns_capable_common+0xcf/0x160 [ 123.293126] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 123.298298] mount_ns+0xc4/0x190 [ 123.301643] rpc_mount+0x9e/0xd0 [ 123.304998] mount_fs+0x66/0x2d0 [ 123.308352] vfs_kern_mount.part.26+0xc6/0x4a0 [ 123.312920] ? may_umount+0xa0/0xa0 [ 123.316531] ? _raw_read_unlock+0x22/0x30 [ 123.320660] ? __get_fs_type+0x8a/0xc0 [ 123.324545] do_mount+0xea4/0x2bb0 [ 123.328059] ? __might_fault+0x110/0x1d0 [ 123.332106] ? copy_mount_string+0x40/0x40 [ 123.336316] ? check_same_owner+0x320/0x320 [ 123.340613] ? __check_object_size+0x8b/0x530 [ 123.345092] ? __might_sleep+0x95/0x190 [ 123.349053] ? kasan_check_write+0x14/0x20 [ 123.353269] ? _copy_from_user+0x99/0x110 [ 123.357409] ? memdup_user+0x5e/0x90 [ 123.361109] ? copy_mount_options+0x1f7/0x2e0 [ 123.365589] SyS_mount+0xab/0x120 [ 123.369037] ? copy_mnt_ns+0xb30/0xb30 [ 123.372908] do_syscall_64+0x281/0x940 [ 123.376778] ? __do_page_fault+0xc90/0xc90 [ 123.380990] ? trace_event_raw_event_sys_exit+0x260/0x260 [ 123.386518] ? syscall_return_slowpath+0x550/0x550 [ 123.391431] ? syscall_return_slowpath+0x2ac/0x550 [ 123.396340] ? entry_SYSCALL_64_after_hwframe+0x52/0xb7 [ 123.401698] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 123.406700] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 123.411867] RIP: 0033:0x442da9 [ 123.415038] RSP: 002b:00007ffd459c4fa8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 123.422732] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000442da9 executing program executing program [ 123.429978] RDX: 0000000020000480 RSI: 0000000020000180 RDI: 0000000020000100 [ 123.437221] RBP: 00007ffd459c5850 R08: 0000000000000000 R09: 0000000300000000 [ 123.444465] R10: 0000000000200000 R11: 0000000000000246 R12: ffffffffffffffff [ 123.451709] R13: 0000000000000006 R14: 0000000000001380 R15: 00007ffd459c50e8 [ 123.459198] net/sunrpc/rpc_pipe.c: __rpc_create_common failed to allocate inode for dentry gssd [ 123.468098] net/sunrpc/rpc_pipe.c: rpc_mkpipe_dentry() failed to create pipe clntXX/gssd (errno = -12) [ 123.489766] FAULT_INJECTION: forcing a failure. [ 123.489766] name failslab, interval 1, probability 0, space 0, times 0 [ 123.501118] CPU: 1 PID: 4471 Comm: syzkaller513478 Not tainted 4.16.0-rc6+ #41 [ 123.508466] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 123.517798] Call Trace: [ 123.520367] dump_stack+0x194/0x24d [ 123.523974] ? arch_local_irq_restore+0x53/0x53 [ 123.528633] should_fail+0x8c0/0xa40 [ 123.532329] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 123.537413] ? __lock_is_held+0xb6/0x140 [ 123.541455] ? mark_held_locks+0xaf/0x100 [ 123.545579] ? __raw_spin_lock_init+0x1c/0x100 [ 123.550160] ? find_held_lock+0x35/0x1d0 [ 123.554202] ? __lock_is_held+0xb6/0x140 [ 123.558254] ? check_same_owner+0x320/0x320 [ 123.562552] ? d_alloc+0x269/0x340 [ 123.566070] ? rcu_note_context_switch+0x710/0x710 [ 123.570973] ? lock_release+0xa40/0xa40 [ 123.574931] should_failslab+0xec/0x120 [ 123.578886] kmem_cache_alloc+0x47/0x760 [ 123.582928] ? d_drop+0x51/0x60 [ 123.586186] ? rpc_i_callback+0x30/0x30 [ 123.590138] rpc_alloc_inode+0x1a/0x20 [ 123.594000] alloc_inode+0x65/0x180 [ 123.597607] new_inode_pseudo+0x69/0x190 [ 123.601642] ? prune_icache_sb+0x1a0/0x1a0 [ 123.605852] ? do_raw_spin_trylock+0x190/0x190 [ 123.610415] ? d_add+0xa70/0xa70 [ 123.613764] new_inode+0x1c/0x40 [ 123.617107] rpc_get_inode+0x20/0x1e0 [ 123.620884] __rpc_create_common+0x5d/0x1d0 [ 123.625190] rpc_mkpipe_dentry+0x122/0x360 [ 123.629405] rpc_fill_super+0x85e/0xae0 [ 123.633360] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 123.638529] ? security_capable+0x8e/0xc0 [ 123.642657] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 123.647820] ? ns_capable_common+0xcf/0x160 [ 123.652122] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 123.657285] mount_ns+0xc4/0x190 [ 123.660632] rpc_mount+0x9e/0xd0 [ 123.663983] mount_fs+0x66/0x2d0 [ 123.667331] vfs_kern_mount.part.26+0xc6/0x4a0 [ 123.671893] ? may_umount+0xa0/0xa0 [ 123.675495] ? _raw_read_unlock+0x22/0x30 [ 123.679619] ? __get_fs_type+0x8a/0xc0 [ 123.683493] do_mount+0xea4/0x2bb0 [ 123.687009] ? __might_fault+0x110/0x1d0 [ 123.691057] ? copy_mount_string+0x40/0x40 [ 123.695266] ? check_same_owner+0x320/0x320 [ 123.699563] ? __check_object_size+0x8b/0x530 [ 123.704042] ? __might_sleep+0x95/0x190 [ 123.707999] ? kasan_check_write+0x14/0x20 [ 123.712215] ? _copy_from_user+0x99/0x110 [ 123.716343] ? memdup_user+0x5e/0x90 [ 123.720031] ? copy_mount_options+0x1f7/0x2e0 [ 123.724506] SyS_mount+0xab/0x120 [ 123.727936] ? copy_mnt_ns+0xb30/0xb30 [ 123.731801] do_syscall_64+0x281/0x940 [ 123.735674] ? __do_page_fault+0xc90/0xc90 [ 123.739885] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 123.744625] ? syscall_return_slowpath+0x550/0x550 [ 123.749540] ? syscall_return_slowpath+0x2ac/0x550 [ 123.754448] ? prepare_exit_to_usermode+0x350/0x350 [ 123.759442] ? entry_SYSCALL_64_after_hwframe+0x52/0xb7 [ 123.764786] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 123.769612] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 123.774775] RIP: 0033:0x442da9 [ 123.777940] RSP: 002b:00007ffd459c4fa8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 123.785623] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000442da9 [ 123.792868] RDX: 0000000020000480 RSI: 0000000020000180 RDI: 0000000020000100 [ 123.800113] RBP: 00007ffd459c5850 R08: 0000000000000000 R09: 0000000300000000 [ 123.807359] R10: 0000000000200000 R11: 0000000000000246 R12: ffffffffffffffff [ 123.814603] R13: 0000000000000006 R14: 0000000000001380 R15: 00007ffd459c50e8 [ 123.822125] net/sunrpc/rpc_pipe.c: __rpc_create_common failed to allocate inode for dentry gssd [ 123.831569] net/sunrpc/rpc_pipe.c: rpc_mkpipe_dentry() failed to create pipe clntXX/gssd (errno = -12) [ 123.847261] FAULT_INJECTION: forcing a failure. [ 123.847261] name failslab, interval 1, probability 0, space 0, times 0 [ 123.847582] FAULT_INJECTION: forcing a failure. [ 123.847582] name failslab, interval 1, probability 0, space 0, times 0 [ 123.858531] CPU: 0 PID: 4473 Comm: syzkaller513478 Not tainted 4.16.0-rc6+ #41 [ 123.877022] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 123.886716] Call Trace: [ 123.889290] dump_stack+0x194/0x24d [ 123.892904] ? arch_local_irq_restore+0x53/0x53 [ 123.897574] should_fail+0x8c0/0xa40 [ 123.901290] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 123.906377] ? __lock_is_held+0xb6/0x140 [ 123.910428] ? mark_held_locks+0xaf/0x100 [ 123.914560] ? __raw_spin_lock_init+0x1c/0x100 [ 123.919132] ? find_held_lock+0x35/0x1d0 [ 123.923185] ? __lock_is_held+0xb6/0x140 [ 123.927248] ? check_same_owner+0x320/0x320 [ 123.931554] ? d_alloc+0x269/0x340 [ 123.935079] ? rcu_note_context_switch+0x710/0x710 [ 123.939990] ? lock_release+0xa40/0xa40 [ 123.943962] should_failslab+0xec/0x120 [ 123.947919] kmem_cache_alloc+0x47/0x760 [ 123.951967] ? d_drop+0x51/0x60 [ 123.955233] ? rpc_i_callback+0x30/0x30 [ 123.959193] rpc_alloc_inode+0x1a/0x20 [ 123.963060] alloc_inode+0x65/0x180 [ 123.966670] new_inode_pseudo+0x69/0x190 [ 123.970711] ? prune_icache_sb+0x1a0/0x1a0 [ 123.974946] ? do_raw_spin_trylock+0x190/0x190 [ 123.979512] ? d_add+0xa70/0xa70 [ 123.982872] new_inode+0x1c/0x40 [ 123.986222] rpc_get_inode+0x20/0x1e0 [ 123.990009] __rpc_create_common+0x5d/0x1d0 [ 123.994330] rpc_mkpipe_dentry+0x122/0x360 [ 123.998559] rpc_fill_super+0x85e/0xae0 [ 124.002524] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 124.007713] ? security_capable+0x8e/0xc0 [ 124.011846] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 124.017017] ? ns_capable_common+0xcf/0x160 [ 124.021416] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 124.026588] mount_ns+0xc4/0x190 [ 124.029944] rpc_mount+0x9e/0xd0 [ 124.033300] mount_fs+0x66/0x2d0 [ 124.036662] vfs_kern_mount.part.26+0xc6/0x4a0 [ 124.041233] ? may_umount+0xa0/0xa0 [ 124.044843] ? _raw_read_unlock+0x22/0x30 [ 124.048974] ? __get_fs_type+0x8a/0xc0 [ 124.052854] do_mount+0xea4/0x2bb0 [ 124.056374] ? __might_fault+0x110/0x1d0 [ 124.060433] ? copy_mount_string+0x40/0x40 [ 124.064648] ? check_same_owner+0x320/0x320 [ 124.068957] ? __check_object_size+0x8b/0x530 [ 124.073447] ? __might_sleep+0x95/0x190 [ 124.077413] ? kasan_check_write+0x14/0x20 [ 124.081628] ? _copy_from_user+0x99/0x110 [ 124.085765] ? memdup_user+0x5e/0x90 [ 124.089465] ? copy_mount_options+0x1f7/0x2e0 [ 124.093948] SyS_mount+0xab/0x120 [ 124.097824] ? copy_mnt_ns+0xb30/0xb30 [ 124.101696] do_syscall_64+0x281/0x940 [ 124.105564] ? __do_page_fault+0xc90/0xc90 [ 124.109780] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 124.114522] ? syscall_return_slowpath+0x550/0x550 [ 124.119433] ? syscall_return_slowpath+0x2ac/0x550 [ 124.124346] ? prepare_exit_to_usermode+0x350/0x350 [ 124.129347] ? entry_SYSCALL_64_after_hwframe+0x52/0xb7 [ 124.134703] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 124.139537] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 124.144710] RIP: 0033:0x442da9 [ 124.147880] RSP: 002b:00007ffd459c4fa8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 124.155571] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000442da9 [ 124.162824] RDX: 0000000020000480 RSI: 0000000020000180 RDI: 0000000020000100 [ 124.170076] RBP: 00007ffd459c5850 R08: 0000000000000000 R09: 0000000300000000 [ 124.177416] R10: 0000000000200000 R11: 0000000000000246 R12: ffffffffffffffff [ 124.184672] R13: 0000000000000006 R14: 0000000000001380 R15: 00007ffd459c50e8 [ 124.191957] CPU: 1 PID: 4475 Comm: syzkaller513478 Not tainted 4.16.0-rc6+ #41 [ 124.192258] net/sunrpc/rpc_pipe.c: __rpc_create_common failed to allocate inode for dentry gssd [ 124.199301] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 124.199304] Call Trace: [ 124.199319] dump_stack+0x194/0x24d [ 124.199335] ? arch_local_irq_restore+0x53/0x53 [ 124.199362] should_fail+0x8c0/0xa40 [ 124.231974] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 124.237065] ? __lock_is_held+0xb6/0x140 [ 124.241107] ? mark_held_locks+0xaf/0x100 [ 124.245235] ? __raw_spin_lock_init+0x1c/0x100 [ 124.249801] ? find_held_lock+0x35/0x1d0 [ 124.253849] ? __lock_is_held+0xb6/0x140 [ 124.257901] ? check_same_owner+0x320/0x320 [ 124.262198] ? d_alloc+0x269/0x340 [ 124.265718] ? rcu_note_context_switch+0x710/0x710 [ 124.270632] ? lock_release+0xa40/0xa40 [ 124.274600] should_failslab+0xec/0x120 [ 124.278552] kmem_cache_alloc+0x47/0x760 [ 124.282591] ? d_drop+0x51/0x60 [ 124.285847] ? rpc_i_callback+0x30/0x30 [ 124.289807] rpc_alloc_inode+0x1a/0x20 [ 124.293669] alloc_inode+0x65/0x180 [ 124.297273] new_inode_pseudo+0x69/0x190 [ 124.301397] ? prune_icache_sb+0x1a0/0x1a0 [ 124.305614] ? do_raw_spin_trylock+0x190/0x190 [ 124.310173] ? d_add+0xa70/0xa70 [ 124.313521] new_inode+0x1c/0x40 [ 124.316863] rpc_get_inode+0x20/0x1e0 [ 124.320644] __rpc_create_common+0x5d/0x1d0 [ 124.324948] rpc_mkpipe_dentry+0x122/0x360 [ 124.329167] rpc_fill_super+0x85e/0xae0 [ 124.333130] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 124.338301] ? security_capable+0x8e/0xc0 [ 124.342426] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 124.347589] ? ns_capable_common+0xcf/0x160 [ 124.351890] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 124.357054] mount_ns+0xc4/0x190 [ 124.360401] rpc_mount+0x9e/0xd0 [ 124.363745] mount_fs+0x66/0x2d0 [ 124.367094] vfs_kern_mount.part.26+0xc6/0x4a0 [ 124.371654] ? may_umount+0xa0/0xa0 [ 124.375255] ? _raw_read_unlock+0x22/0x30 [ 124.379376] ? __get_fs_type+0x8a/0xc0 [ 124.383250] do_mount+0xea4/0x2bb0 [ 124.386765] ? __might_fault+0x110/0x1d0 [ 124.390810] ? copy_mount_string+0x40/0x40 [ 124.395024] ? check_same_owner+0x320/0x320 [ 124.399321] ? __check_object_size+0x8b/0x530 [ 124.403804] ? __might_sleep+0x95/0x190 [ 124.407759] ? kasan_check_write+0x14/0x20 [ 124.411971] ? _copy_from_user+0x99/0x110 [ 124.416098] ? memdup_user+0x5e/0x90 [ 124.419786] ? copy_mount_options+0x1f7/0x2e0 [ 124.424267] SyS_mount+0xab/0x120 [ 124.427694] ? copy_mnt_ns+0xb30/0xb30 [ 124.431561] do_syscall_64+0x281/0x940 [ 124.435422] ? __do_page_fault+0xc90/0xc90 [ 124.439633] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 124.444368] ? syscall_return_slowpath+0x550/0x550 [ 124.449274] ? syscall_return_slowpath+0x2ac/0x550 [ 124.454179] ? prepare_exit_to_usermode+0x350/0x350 [ 124.459177] ? entry_SYSCALL_64_after_hwframe+0x52/0xb7 [ 124.464520] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 124.469346] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 124.474511] RIP: 0033:0x442da9 [ 124.477674] RSP: 002b:00007ffd459c4fa8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 124.485366] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000442da9 [ 124.492611] RDX: 0000000020000480 RSI: 0000000020000180 RDI: 0000000020000100 [ 124.499854] RBP: 00007ffd459c5850 R08: 0000000000000000 R09: 0000000300000000 [ 124.507098] R10: 0000000000200000 R11: 0000000000000246 R12: ffffffffffffffff [ 124.514341] R13: 0000000000000006 R14: 0000000000001380 R15: 00007ffd459c50e8 [ 124.522158] net/sunrpc/rpc_pipe.c: __rpc_create_common failed to allocate inode for dentry gssd [ 124.523981] net/sunrpc/rpc_pipe.c: rpc_mkpipe_dentry() failed to create pipe clntXX/gssd (errno = -12) [ 124.531803] net/sunrpc/rpc_pipe.c: rpc_mkpipe_dentry() failed to create pipe clntXX/gssd (errno = -12) [ 124.549732] FAULT_INJECTION: forcing a failure. [ 124.549732] name failslab, interval 1, probability 0, space 0, times 0 [ 124.552695] FAULT_INJECTION: forcing a failure. [ 124.552695] name failslab, interval 1, probability 0, space 0, times 0 [ 124.561339] CPU: 0 PID: 4472 Comm: syzkaller513478 Not tainted 4.16.0-rc6+ #41 [ 124.579918] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 124.589251] Call Trace: [ 124.591828] dump_stack+0x194/0x24d [ 124.595443] ? arch_local_irq_restore+0x53/0x53 [ 124.600116] should_fail+0x8c0/0xa40 [ 124.603819] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 124.608998] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 124.614169] ? __lock_acquire+0x664/0x3e00 [ 124.618394] ? __lock_acquire+0x664/0x3e00 [ 124.622618] ? find_held_lock+0x35/0x1d0 [ 124.626669] ? __lock_is_held+0xb6/0x140 [ 124.630735] ? check_same_owner+0x320/0x320 [ 124.635038] ? __d_lookup+0x4f4/0x830 [ 124.638825] ? rcu_note_context_switch+0x710/0x710 [ 124.643752] should_failslab+0xec/0x120 [ 124.647712] kmem_cache_alloc+0x47/0x760 [ 124.651773] __d_alloc+0xc1/0xbd0 [ 124.655221] ? shrink_dcache_for_umount+0x290/0x290 [ 124.660227] ? d_alloc_parallel+0x1b40/0x1b40 [ 124.664711] ? lock_release+0xa40/0xa40 [ 124.668678] ? mark_held_locks+0xaf/0x100 [ 124.672811] ? d_lookup+0x133/0x2e0 [ 124.676434] ? d_lookup+0x1d5/0x2e0 [ 124.680053] ? current_kernel_time64+0x1d4/0x2f0 [ 124.684800] d_alloc+0x8e/0x340 [ 124.688067] ? __d_alloc+0xbd0/0xbd0 [ 124.691761] ? full_name_hash+0x9b/0xe0 [ 124.695732] __rpc_lookup_create_exclusive+0x183/0x1d0 [ 124.700987] ? down_write_nested+0x8b/0x120 [ 124.705294] ? rpc_d_lookup_sb+0x1a0/0x1a0 [ 124.709509] ? _down_write_nest_lock+0x120/0x120 [ 124.714245] ? __d_lookup+0x830/0x830 [ 124.718043] rpc_mkpipe_dentry+0xf8/0x360 [ 124.722182] rpc_fill_super+0x85e/0xae0 [ 124.726145] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 124.731323] ? security_capable+0x8e/0xc0 [ 124.735460] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 124.740634] ? ns_capable_common+0xcf/0x160 [ 124.744943] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 124.750116] mount_ns+0xc4/0x190 [ 124.753471] rpc_mount+0x9e/0xd0 [ 124.756824] mount_fs+0x66/0x2d0 [ 124.760182] vfs_kern_mount.part.26+0xc6/0x4a0 [ 124.764750] ? may_umount+0xa0/0xa0 [ 124.768363] ? _raw_read_unlock+0x22/0x30 [ 124.772494] ? __get_fs_type+0x8a/0xc0 [ 124.776373] do_mount+0xea4/0x2bb0 [ 124.779893] ? __might_fault+0x110/0x1d0 [ 124.783948] ? copy_mount_string+0x40/0x40 [ 124.788165] ? check_same_owner+0x320/0x320 [ 124.792471] ? __check_object_size+0x8b/0x530 [ 124.796958] ? __might_sleep+0x95/0x190 [ 124.800924] ? kasan_check_write+0x14/0x20 [ 124.805143] ? _copy_from_user+0x99/0x110 [ 124.809284] ? memdup_user+0x5e/0x90 [ 124.812979] ? copy_mount_options+0x1f7/0x2e0 [ 124.817464] SyS_mount+0xab/0x120 [ 124.820900] ? copy_mnt_ns+0xb30/0xb30 [ 124.824775] do_syscall_64+0x281/0x940 [ 124.828641] ? __do_page_fault+0xc90/0xc90 [ 124.832856] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 124.837604] ? syscall_return_slowpath+0x550/0x550 [ 124.842518] ? syscall_return_slowpath+0x2ac/0x550 [ 124.847430] ? prepare_exit_to_usermode+0x350/0x350 [ 124.852432] ? entry_SYSCALL_64_after_hwframe+0x52/0xb7 [ 124.857784] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 124.862622] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 124.867793] RIP: 0033:0x442da9 [ 124.870963] RSP: 002b:00007ffd459c4fa8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 124.878655] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000442da9 [ 124.885905] RDX: 0000000020000480 RSI: 0000000020000180 RDI: 0000000020000100 [ 124.893157] RBP: 00007ffd459c5850 R08: 0000000000000000 R09: 0000000300000000 [ 124.900407] R10: 0000000000200000 R11: 0000000000000246 R12: ffffffffffffffff [ 124.907656] R13: 0000000000000006 R14: 0000000000001380 R15: 00007ffd459c50e8 [ 124.914937] CPU: 1 PID: 4474 Comm: syzkaller513478 Not tainted 4.16.0-rc6+ #41 [ 124.919661] FAULT_INJECTION: forcing a failure. [ 124.919661] name failslab, interval 1, probability 0, space 0, times 0 [ 124.922286] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 124.922290] Call Trace: [ 124.922304] dump_stack+0x194/0x24d [ 124.922321] ? arch_local_irq_restore+0x53/0x53 [ 124.922351] should_fail+0x8c0/0xa40 [ 124.957328] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 124.962420] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 124.967590] ? __lock_acquire+0x664/0x3e00 [ 124.971815] ? __lock_acquire+0x664/0x3e00 [ 124.976041] ? find_held_lock+0x35/0x1d0 [ 124.980092] ? __lock_is_held+0xb6/0x140 [ 124.984157] ? check_same_owner+0x320/0x320 [ 124.988462] ? __d_lookup+0x4f4/0x830 [ 124.992248] ? rcu_note_context_switch+0x710/0x710 [ 124.997171] should_failslab+0xec/0x120 [ 125.001131] kmem_cache_alloc+0x47/0x760 [ 125.005194] __d_alloc+0xc1/0xbd0 [ 125.008637] ? shrink_dcache_for_umount+0x290/0x290 [ 125.013639] ? d_alloc_parallel+0x1b40/0x1b40 [ 125.018123] ? lock_release+0xa40/0xa40 [ 125.022089] ? mark_held_locks+0xaf/0x100 [ 125.026221] ? d_lookup+0x133/0x2e0 [ 125.029843] ? d_lookup+0x1d5/0x2e0 [ 125.033451] ? current_kernel_time64+0x1d4/0x2f0 [ 125.038195] d_alloc+0x8e/0x340 [ 125.041462] ? __d_alloc+0xbd0/0xbd0 [ 125.045159] ? full_name_hash+0x9b/0xe0 [ 125.049130] __rpc_lookup_create_exclusive+0x183/0x1d0 [ 125.054385] ? down_write_nested+0x8b/0x120 [ 125.058709] ? rpc_d_lookup_sb+0x1a0/0x1a0 [ 125.062922] ? _down_write_nest_lock+0x120/0x120 [ 125.067661] ? __d_lookup+0x830/0x830 [ 125.071456] rpc_mkpipe_dentry+0xf8/0x360 [ 125.075597] rpc_fill_super+0x85e/0xae0 [ 125.079561] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 125.084745] ? security_capable+0x8e/0xc0 [ 125.088879] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 125.094051] ? ns_capable_common+0xcf/0x160 [ 125.098363] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 125.103531] mount_ns+0xc4/0x190 [ 125.106885] rpc_mount+0x9e/0xd0 [ 125.110238] mount_fs+0x66/0x2d0 [ 125.113593] vfs_kern_mount.part.26+0xc6/0x4a0 [ 125.118162] ? may_umount+0xa0/0xa0 [ 125.121770] ? _raw_read_unlock+0x22/0x30 [ 125.125900] ? __get_fs_type+0x8a/0xc0 [ 125.129778] do_mount+0xea4/0x2bb0 [ 125.133300] ? __might_fault+0x110/0x1d0 [ 125.137353] ? copy_mount_string+0x40/0x40 [ 125.141568] ? check_same_owner+0x320/0x320 [ 125.145871] ? __check_object_size+0x8b/0x530 [ 125.150358] ? __might_sleep+0x95/0x190 [ 125.154342] ? kasan_check_write+0x14/0x20 [ 125.158559] ? _copy_from_user+0x99/0x110 [ 125.162694] ? memdup_user+0x5e/0x90 [ 125.166390] ? copy_mount_options+0x1f7/0x2e0 [ 125.170876] SyS_mount+0xab/0x120 [ 125.174312] ? copy_mnt_ns+0xb30/0xb30 [ 125.178188] do_syscall_64+0x281/0x940 [ 125.182057] ? __do_page_fault+0xc90/0xc90 [ 125.186277] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 125.191024] ? syscall_return_slowpath+0x550/0x550 [ 125.195937] ? syscall_return_slowpath+0x2ac/0x550 [ 125.200851] ? prepare_exit_to_usermode+0x350/0x350 [ 125.205850] ? entry_SYSCALL_64_after_hwframe+0x52/0xb7 [ 125.211205] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 125.216041] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 125.221211] RIP: 0033:0x442da9 [ 125.224384] RSP: 002b:00007ffd459c4fa8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 125.232073] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000442da9 [ 125.239323] RDX: 0000000020000480 RSI: 0000000020000180 RDI: 0000000020000100 [ 125.246594] RBP: 00007ffd459c5850 R08: 0000000000000000 R09: 0000000300000000 [ 125.253845] R10: 0000000000200000 R11: 0000000000000246 R12: ffffffffffffffff [ 125.261096] R13: 0000000000000006 R14: 0000000000001380 R15: 00007ffd459c50e8 [ 125.268378] CPU: 0 PID: 4476 Comm: syzkaller513478 Not tainted 4.16.0-rc6+ #41 [ 125.275729] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 125.285072] Call Trace: [ 125.287644] dump_stack+0x194/0x24d [ 125.291255] ? arch_local_irq_restore+0x53/0x53 [ 125.295906] should_fail+0x8c0/0xa40 [ 125.299596] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 125.304687] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 125.309847] ? __lock_acquire+0x664/0x3e00 [ 125.314070] ? __lock_acquire+0x664/0x3e00 [ 125.318285] ? find_held_lock+0x35/0x1d0 [ 125.322323] ? __lock_is_held+0xb6/0x140 [ 125.326370] ? check_same_owner+0x320/0x320 [ 125.330664] ? __d_lookup+0x4f4/0x830 [ 125.334439] ? rcu_note_context_switch+0x710/0x710 [ 125.339350] should_failslab+0xec/0x120 [ 125.343308] kmem_cache_alloc+0x47/0x760 [ 125.347361] __d_alloc+0xc1/0xbd0 [ 125.350792] ? shrink_dcache_for_umount+0x290/0x290 [ 125.356042] ? d_alloc_parallel+0x1b40/0x1b40 [ 125.360517] ? lock_release+0xa40/0xa40 [ 125.364485] ? mark_held_locks+0xaf/0x100 [ 125.368610] ? d_lookup+0x133/0x2e0 [ 125.372221] ? d_lookup+0x1d5/0x2e0 [ 125.375824] ? current_kernel_time64+0x1d4/0x2f0 [ 125.380560] d_alloc+0x8e/0x340 [ 125.383816] ? __d_alloc+0xbd0/0xbd0 [ 125.387507] ? full_name_hash+0x9b/0xe0 [ 125.391474] __rpc_lookup_create_exclusive+0x183/0x1d0 [ 125.396724] ? down_write_nested+0x8b/0x120 [ 125.401118] ? rpc_d_lookup_sb+0x1a0/0x1a0 [ 125.405334] ? _down_write_nest_lock+0x120/0x120 [ 125.410064] ? __d_lookup+0x830/0x830 [ 125.413847] rpc_mkpipe_dentry+0xf8/0x360 [ 125.417977] rpc_fill_super+0x85e/0xae0 [ 125.421939] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 125.427113] ? security_capable+0x8e/0xc0 [ 125.431239] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 125.436402] ? ns_capable_common+0xcf/0x160 [ 125.440700] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 125.445863] mount_ns+0xc4/0x190 [ 125.449212] rpc_mount+0x9e/0xd0 [ 125.452552] mount_fs+0x66/0x2d0 [ 125.455897] vfs_kern_mount.part.26+0xc6/0x4a0 [ 125.460463] ? may_umount+0xa0/0xa0 [ 125.464065] ? _raw_read_unlock+0x22/0x30 [ 125.468188] ? __get_fs_type+0x8a/0xc0 [ 125.472063] do_mount+0xea4/0x2bb0 [ 125.475575] ? __might_fault+0x110/0x1d0 [ 125.479615] ? copy_mount_string+0x40/0x40 [ 125.483833] ? check_same_owner+0x320/0x320 [ 125.488129] ? __check_object_size+0x8b/0x530 [ 125.492605] ? __might_sleep+0x95/0x190 [ 125.496563] ? kasan_check_write+0x14/0x20 [ 125.500771] ? _copy_from_user+0x99/0x110 [ 125.504981] ? memdup_user+0x5e/0x90 [ 125.508670] ? copy_mount_options+0x1f7/0x2e0 [ 125.513142] SyS_mount+0xab/0x120 [ 125.516570] ? copy_mnt_ns+0xb30/0xb30 [ 125.520434] do_syscall_64+0x281/0x940 [ 125.524298] ? __do_page_fault+0xc90/0xc90 [ 125.528507] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 125.533237] ? syscall_return_slowpath+0x550/0x550 [ 125.538141] ? syscall_return_slowpath+0x2ac/0x550 [ 125.543049] ? prepare_exit_to_usermode+0x350/0x350 [ 125.548044] ? entry_SYSCALL_64_after_hwframe+0x52/0xb7 [ 125.553385] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 125.558211] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 125.563380] RIP: 0033:0x442da9 [ 125.566546] RSP: 002b:00007ffd459c4fa8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 125.574230] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000442da9 [ 125.581485] RDX: 0000000020000480 RSI: 0000000020000180 RDI: 0000000020000100 [ 125.588728] RBP: 00007ffd459c5850 R08: 0000000000000000 R09: 0000000300000000 [ 125.595972] R10: 0000000000200000 R11: 0000000000000246 R12: ffffffffffffffff executing program executing program [ 125.603215] R13: 0000000000000006 R14: 0000000000001380 R15: 00007ffd459c50e8 executing program [ 125.627904] FAULT_INJECTION: forcing a failure. [ 125.627904] name failslab, interval 1, probability 0, space 0, times 0 [ 125.639202] CPU: 0 PID: 4477 Comm: syzkaller513478 Not tainted 4.16.0-rc6+ #41 [ 125.646550] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 125.647646] FAULT_INJECTION: forcing a failure. [ 125.647646] name failslab, interval 1, probability 0, space 0, times 0 [ 125.655883] Call Trace: [ 125.655899] dump_stack+0x194/0x24d [ 125.655916] ? arch_local_irq_restore+0x53/0x53 [ 125.655946] should_fail+0x8c0/0xa40 [ 125.682174] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 125.687269] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 125.692439] ? __lock_acquire+0x664/0x3e00 [ 125.696664] ? __lock_acquire+0x664/0x3e00 [ 125.700891] ? find_held_lock+0x35/0x1d0 [ 125.704946] ? __lock_is_held+0xb6/0x140 [ 125.709018] ? check_same_owner+0x320/0x320 [ 125.713320] ? __d_lookup+0x4f4/0x830 [ 125.717113] ? rcu_note_context_switch+0x710/0x710 [ 125.722040] should_failslab+0xec/0x120 [ 125.725999] kmem_cache_alloc+0x47/0x760 [ 125.730061] __d_alloc+0xc1/0xbd0 [ 125.733502] ? shrink_dcache_for_umount+0x290/0x290 [ 125.738505] ? d_alloc_parallel+0x1b40/0x1b40 [ 125.742997] ? lock_release+0xa40/0xa40 [ 125.746965] ? mark_held_locks+0xaf/0x100 [ 125.751097] ? d_lookup+0x133/0x2e0 [ 125.754717] ? d_lookup+0x1d5/0x2e0 [ 125.758325] ? current_kernel_time64+0x1d4/0x2f0 [ 125.763072] d_alloc+0x8e/0x340 [ 125.766337] ? __d_alloc+0xbd0/0xbd0 [ 125.770034] ? full_name_hash+0x9b/0xe0 [ 125.774010] __rpc_lookup_create_exclusive+0x183/0x1d0 [ 125.779268] ? down_write_nested+0x8b/0x120 [ 125.783572] ? rpc_d_lookup_sb+0x1a0/0x1a0 [ 125.787790] ? _down_write_nest_lock+0x120/0x120 [ 125.792526] ? __d_lookup+0x830/0x830 [ 125.796323] rpc_mkpipe_dentry+0xf8/0x360 [ 125.800464] rpc_fill_super+0x85e/0xae0 [ 125.804431] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 125.809610] ? security_capable+0x8e/0xc0 [ 125.813746] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 125.818923] ? ns_capable_common+0xcf/0x160 [ 125.823230] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 125.828402] mount_ns+0xc4/0x190 [ 125.831756] rpc_mount+0x9e/0xd0 [ 125.835111] mount_fs+0x66/0x2d0 [ 125.838468] vfs_kern_mount.part.26+0xc6/0x4a0 [ 125.843041] ? may_umount+0xa0/0xa0 [ 125.846649] ? _raw_read_unlock+0x22/0x30 [ 125.850782] ? __get_fs_type+0x8a/0xc0 [ 125.854663] do_mount+0xea4/0x2bb0 [ 125.858187] ? __might_fault+0x110/0x1d0 [ 125.862243] ? copy_mount_string+0x40/0x40 [ 125.866460] ? check_same_owner+0x320/0x320 [ 125.870764] ? __check_object_size+0x8b/0x530 [ 125.875253] ? __might_sleep+0x95/0x190 [ 125.879222] ? kasan_check_write+0x14/0x20 [ 125.883441] ? _copy_from_user+0x99/0x110 [ 125.887575] ? memdup_user+0x5e/0x90 [ 125.891270] ? copy_mount_options+0x1f7/0x2e0 [ 125.895755] SyS_mount+0xab/0x120 [ 125.899193] ? copy_mnt_ns+0xb30/0xb30 [ 125.903067] do_syscall_64+0x281/0x940 [ 125.906946] ? __do_page_fault+0xc90/0xc90 [ 125.911168] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 125.915912] ? syscall_return_slowpath+0x550/0x550 [ 125.920831] ? syscall_return_slowpath+0x2ac/0x550 [ 125.925748] ? prepare_exit_to_usermode+0x350/0x350 [ 125.930751] ? entry_SYSCALL_64_after_hwframe+0x52/0xb7 [ 125.936104] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 125.940942] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 125.946111] RIP: 0033:0x442da9 [ 125.949282] RSP: 002b:00007ffd459c4fa8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 125.956983] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000442da9 [ 125.964234] RDX: 0000000020000480 RSI: 0000000020000180 RDI: 0000000020000100 [ 125.971484] RBP: 00007ffd459c5850 R08: 0000000000000000 R09: 0000000300000000 executing program executing program [ 125.978734] R10: 0000000000200000 R11: 0000000000000246 R12: ffffffffffffffff [ 125.985984] R13: 0000000000000006 R14: 0000000000001380 R15: 00007ffd459c50e8 [ 125.993263] CPU: 1 PID: 4478 Comm: syzkaller513478 Not tainted 4.16.0-rc6+ #41 [ 126.000613] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 126.009943] Call Trace: [ 126.012510] dump_stack+0x194/0x24d [ 126.016132] ? arch_local_irq_restore+0x53/0x53 [ 126.020794] should_fail+0x8c0/0xa40 [ 126.024487] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 126.029570] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 126.034739] ? __lock_acquire+0x664/0x3e00 [ 126.038963] ? find_held_lock+0x35/0x1d0 [ 126.043016] ? __lock_is_held+0xb6/0x140 [ 126.047076] ? check_same_owner+0x320/0x320 [ 126.051376] ? __d_lookup+0x4f4/0x830 [ 126.055158] ? rcu_note_context_switch+0x710/0x710 [ 126.060077] should_failslab+0xec/0x120 [ 126.064035] kmem_cache_alloc+0x47/0x760 [ 126.068088] __d_alloc+0xc1/0xbd0 [ 126.071519] ? shrink_dcache_for_umount+0x290/0x290 [ 126.076519] ? d_alloc_parallel+0x1b40/0x1b40 [ 126.081003] ? lock_release+0xa40/0xa40 [ 126.084963] ? d_alloc_parallel+0x1b40/0x1b40 [ 126.089436] ? mark_held_locks+0xaf/0x100 [ 126.093560] ? d_lookup+0x133/0x2e0 [ 126.097168] ? d_lookup+0x1d5/0x2e0 [ 126.100787] d_alloc+0x8e/0x340 [ 126.104061] ? __d_alloc+0xbd0/0xbd0 [ 126.107755] ? full_name_hash+0x9b/0xe0 [ 126.111729] __rpc_lookup_create_exclusive+0x183/0x1d0 [ 126.116989] ? down_write_nested+0x8b/0x120 [ 126.121287] ? rpc_d_lookup_sb+0x1a0/0x1a0 [ 126.125496] ? _down_write_nest_lock+0x120/0x120 [ 126.130239] ? rpc_d_lookup_sb+0x115/0x1a0 [ 126.134455] ? lock_release+0xa40/0xa40 [ 126.138423] rpc_mkpipe_dentry+0xf8/0x360 [ 126.142552] nfs4blocklayout_register_sb+0x4b/0x70 [ 126.147459] rpc_pipefs_event+0x3a4/0x480 [ 126.151597] ? nfs4blocklayout_net_init+0x460/0x460 [ 126.156591] ? lock_release+0xa40/0xa40 [ 126.160539] ? check_same_owner+0x320/0x320 [ 126.164847] ? dput.part.20+0x1d9/0x830 [ 126.168806] notifier_call_chain+0x136/0x2c0 [ 126.173198] ? raw_notifier_chain_unregister+0x1b0/0x1b0 [ 126.178627] ? down_read+0x96/0x150 [ 126.182232] ? blocking_notifier_call_chain+0xe1/0x190 [ 126.187893] ? __down_interruptible+0x6b0/0x6b0 [ 126.192554] ? _raw_spin_unlock+0x22/0x30 [ 126.196684] blocking_notifier_call_chain+0x102/0x190 [ 126.201866] ? srcu_init_notifier_head+0x80/0x80 [ 126.206609] rpc_fill_super+0x525/0xae0 [ 126.210564] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 126.215734] ? security_capable+0x8e/0xc0 [ 126.219871] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 126.225050] ? ns_capable_common+0xcf/0x160 [ 126.229362] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 126.234527] mount_ns+0xc4/0x190 [ 126.237874] rpc_mount+0x9e/0xd0 [ 126.241220] mount_fs+0x66/0x2d0 [ 126.244565] vfs_kern_mount.part.26+0xc6/0x4a0 [ 126.249132] ? may_umount+0xa0/0xa0 [ 126.252739] ? _raw_read_unlock+0x22/0x30 [ 126.256869] ? __get_fs_type+0x8a/0xc0 [ 126.260739] do_mount+0xea4/0x2bb0 [ 126.264258] ? __might_fault+0x110/0x1d0 [ 126.268306] ? copy_mount_string+0x40/0x40 [ 126.272515] ? check_same_owner+0x320/0x320 [ 126.276811] ? __check_object_size+0x8b/0x530 [ 126.281287] ? __might_sleep+0x95/0x190 [ 126.285243] ? kasan_check_write+0x14/0x20 [ 126.289452] ? _copy_from_user+0x99/0x110 [ 126.293579] ? memdup_user+0x5e/0x90 [ 126.297270] ? copy_mount_options+0x1f7/0x2e0 [ 126.301745] SyS_mount+0xab/0x120 [ 126.305178] ? copy_mnt_ns+0xb30/0xb30 [ 126.309049] do_syscall_64+0x281/0x940 [ 126.312917] ? __do_page_fault+0xc90/0xc90 [ 126.317133] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 126.321867] ? syscall_return_slowpath+0x550/0x550 [ 126.326779] ? syscall_return_slowpath+0x2ac/0x550 [ 126.331691] ? prepare_exit_to_usermode+0x350/0x350 [ 126.336693] ? entry_SYSCALL_64_after_hwframe+0x52/0xb7 [ 126.342054] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 126.346883] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 126.352051] RIP: 0033:0x442da9 [ 126.355220] RSP: 002b:00007ffd459c4fa8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 126.362916] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000442da9 [ 126.370165] RDX: 0000000020000480 RSI: 0000000020000180 RDI: 0000000020000100 [ 126.377409] RBP: 00007ffd459c5850 R08: 0000000000000000 R09: 0000000300000000 [ 126.384654] R10: 0000000000200000 R11: 0000000000000246 R12: ffffffffffffffff [ 126.391906] R13: 0000000000000006 R14: 0000000000001380 R15: 00007ffd459c50e8 [ 126.400853] list_del corruption. prev->next should be 00000000fece16d8, but was 000000001bb16633 [ 126.410519] ------------[ cut here ]------------ [ 126.415602] kernel BUG at lib/list_debug.c:53! [ 126.420228] invalid opcode: 0000 [#1] SMP KASAN [ 126.424888] Dumping ftrace buffer: [ 126.428403] (ftrace buffer empty) [ 126.432089] Modules linked in: [ 126.435255] CPU: 1 PID: 4478 Comm: syzkaller513478 Not tainted 4.16.0-rc6+ #41 [ 126.442583] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 126.451917] RIP: 0010:__list_del_entry_valid+0xef/0x150 [ 126.457249] RSP: 0018:ffff8801b1cbf7a0 EFLAGS: 00010282 [ 126.462585] RAX: 0000000000000054 RBX: ffff8801ad06a270 RCX: 0000000000000000 [ 126.469827] RDX: 0000000000000054 RSI: 1ffff10036397ea9 RDI: ffffed0036397ee8 [ 126.477068] RBP: ffff8801b1cbf7b8 R08: 1ffff10036397e40 R09: 0000000000000000 [ 126.484311] R10: ffff8801b1cbf778 R11: 0000000000000000 R12: ffff8801ad06a0f0 [ 126.491552] R13: 1ffff10036397efd R14: ffff8801ad06ff50 R15: dffffc0000000000 [ 126.498792] FS: 0000000001eb2880(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000 [ 126.506991] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 126.512848] CR2: 00000000006cf0a0 CR3: 00000001b243b004 CR4: 00000000001606e0 [ 126.520090] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 126.527333] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 126.534575] Call Trace: [ 126.537139] __dentry_kill+0x260/0x700 [ 126.541002] ? check_and_drop+0x1b0/0x1b0 [ 126.545128] ? d_path+0x930/0x930 [ 126.548556] ? rcu_note_context_switch+0x710/0x710 [ 126.553469] dput.part.20+0x5a0/0x830 [ 126.557245] ? d_path+0x930/0x930 [ 126.560670] ? rpc_show_info+0x460/0x460 [ 126.564701] ? d_delete+0x181/0x280 [ 126.568302] dput+0x1f/0x30 [ 126.571205] rpc_fill_super+0x628/0xae0 [ 126.575157] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 126.580326] ? security_capable+0x8e/0xc0 [ 126.584450] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 126.589613] ? ns_capable_common+0xcf/0x160 [ 126.593909] ? rpc_remove_pipe_dir_object+0x6d0/0x6d0 [ 126.599073] mount_ns+0xc4/0x190 [ 126.602414] rpc_mount+0x9e/0xd0 [ 126.605752] mount_fs+0x66/0x2d0 [ 126.609095] vfs_kern_mount.part.26+0xc6/0x4a0 [ 126.613653] ? may_umount+0xa0/0xa0 [ 126.617255] ? _raw_read_unlock+0x22/0x30 [ 126.621383] ? __get_fs_type+0x8a/0xc0 [ 126.625247] do_mount+0xea4/0x2bb0 [ 126.628760] ? __might_fault+0x110/0x1d0 [ 126.632795] ? copy_mount_string+0x40/0x40 [ 126.637005] ? check_same_owner+0x320/0x320 [ 126.641309] ? __check_object_size+0x8b/0x530 [ 126.645780] ? __might_sleep+0x95/0x190 [ 126.649729] ? kasan_check_write+0x14/0x20 [ 126.653937] ? _copy_from_user+0x99/0x110 [ 126.658058] ? memdup_user+0x5e/0x90 [ 126.661742] ? copy_mount_options+0x1f7/0x2e0 [ 126.666219] SyS_mount+0xab/0x120 [ 126.669646] ? copy_mnt_ns+0xb30/0xb30 [ 126.673506] do_syscall_64+0x281/0x940 [ 126.677374] ? __do_page_fault+0xc90/0xc90 [ 126.681585] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 126.686335] ? syscall_return_slowpath+0x550/0x550 [ 126.691236] ? syscall_return_slowpath+0x2ac/0x550 [ 126.696141] ? prepare_exit_to_usermode+0x350/0x350 [ 126.701129] ? entry_SYSCALL_64_after_hwframe+0x52/0xb7 [ 126.706467] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 126.711286] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 126.716445] RIP: 0033:0x442da9 [ 126.719617] RSP: 002b:00007ffd459c4fa8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 126.727298] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000442da9 [ 126.734545] RDX: 0000000020000480 RSI: 0000000020000180 RDI: 0000000020000100 [ 126.741795] RBP: 00007ffd459c5850 R08: 0000000000000000 R09: 0000000300000000 [ 126.749040] R10: 0000000000200000 R11: 0000000000000246 R12: ffffffffffffffff [ 126.756286] R13: 0000000000000006 R14: 0000000000001380 R15: 00007ffd459c50e8 [ 126.763535] Code: 4c 89 e2 48 c7 c7 00 91 e5 86 e8 65 a4 a6 fe 0f 0b 48 c7 c7 60 91 e5 86 e8 57 a4 a6 fe 0f 0b 48 c7 c7 c0 91 e5 86 e8 49 a4 a6 fe <0f> 0b 48 c7 c7 20 92 e5 86 e8 3b a4 a6 fe 0f 0b 48 89 df 48 89 [ 126.782612] RIP: __list_del_entry_valid+0xef/0x150 RSP: ffff8801b1cbf7a0 [ 126.789453] ---[ end trace b8fe6ad6bc78a345 ]--- [ 126.794200] Kernel panic - not syncing: Fatal exception [ 126.799918] Dumping ftrace buffer: [ 126.803431] (ftrace buffer empty) [ 126.807110] Kernel Offset: disabled [ 126.810706] Rebooting in 86400 seconds..