[....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[ 14.787833] random: sshd: uninitialized urandom read (32 bytes read) [?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 18.630336] random: sshd: uninitialized urandom read (32 bytes read) [ 18.930504] random: sshd: uninitialized urandom read (32 bytes read) [ 19.628383] random: sshd: uninitialized urandom read (32 bytes read) [ 39.217831] random: sshd: uninitialized urandom read (32 bytes read) Warning: Permanently added '10.128.0.3' (ECDSA) to the list of known hosts. [ 44.768841] random: sshd: uninitialized urandom read (32 bytes read) [ 44.859858] IPVS: ftp: loaded support on port[0] = 21 [ 44.863554] IPVS: ftp: loaded support on port[0] = 21 [ 44.868343] IPVS: ftp: loaded support on port[0] = 21 [ 44.872597] IPVS: ftp: loaded support on port[0] = 21 [ 44.880197] IPVS: ftp: loaded support on port[0] = 21 [ 44.882147] IPVS: ftp: loaded support on port[0] = 21 [ 44.888293] IPVS: ftp: loaded support on port[0] = 21 [ 44.895776] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 44.992931] FAULT_INJECTION: forcing a failure. [ 44.992931] name failslab, interval 1, probability 0, space 0, times 1 [ 45.004173] CPU: 1 PID: 4473 Comm: syz-executor348 Not tainted 4.18.0-rc3-next-20180706+ #1 [ 45.012549] FAULT_INJECTION: forcing a failure. [ 45.012549] name failslab, interval 1, probability 0, space 0, times 1 [ 45.012665] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 45.033246] Call Trace: [ 45.035859] dump_stack+0x1c9/0x2b4 [ 45.039487] ? dump_stack_print_info.cold.2+0x52/0x52 [ 45.044675] ? dequeue_task_fair+0xa10/0xa10 [ 45.049077] should_fail.cold.4+0xa/0x11 [ 45.053122] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 45.058211] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 45.063215] ? bpf_prog_kallsyms_find+0xde/0x4c0 [ 45.067970] ? lock_acquire+0x1e4/0x540 [ 45.071929] ? is_bpf_text_address+0xae/0x170 [ 45.076409] ? lock_downgrade+0x8f0/0x8f0 [ 45.080540] ? trace_hardirqs_on+0x10/0x10 [ 45.084760] ? __update_load_avg_blocked_se.isra.34+0x460/0x460 [ 45.090817] ? rcu_cleanup_dead_rnp+0x200/0x200 [ 45.095568] ? trace_hardirqs_on+0x10/0x10 [ 45.099789] ? attach_entity_load_avg+0x860/0x860 [ 45.104624] ? __save_stack_trace+0x8d/0xf0 [ 45.108942] __should_failslab+0x124/0x180 [ 45.113163] should_failslab+0x9/0x14 [ 45.116955] kmem_cache_alloc+0x47/0x760 [ 45.121012] ? trace_hardirqs_on+0x10/0x10 [ 45.125239] xas_alloc+0x38a/0x490 [ 45.128768] ? minmax_running_min+0x690/0x690 [ 45.133257] ? trace_hardirqs_on+0x10/0x10 [ 45.137505] ? percpu_ref_put_many+0x119/0x240 [ 45.142079] xas_create+0x3ae/0x1150 [ 45.145787] ? fs_reclaim_acquire+0x20/0x20 [ 45.150368] ? xas_descend+0x5f0/0x5f0 [ 45.154258] ? lock_acquire+0x1e4/0x540 [ 45.158222] ? percpu_ref_tryget_live+0x143/0x440 [ 45.163058] ? lock_downgrade+0x8f0/0x8f0 [ 45.167198] ? lock_release+0xa30/0xa30 [ 45.171164] ? __alloc_pages_nodemask+0x6e3/0xdb0 [ 45.176000] ? kasan_check_read+0x11/0x20 [ 45.180131] ? trace_hardirqs_on+0xd/0x10 [ 45.184355] ? try_charge+0xbc2/0x1680 [ 45.188230] xas_store+0xce/0x1720 [ 45.191754] ? xas_find_tagged+0x1440/0x1440 [ 45.196141] ? lock_acquire+0x1e4/0x540 [ 45.200096] ? shmem_add_to_page_cache+0x8b9/0x1450 [ 45.205093] ? xa_find_after+0x9a0/0x9a0 [ 45.209153] ? percpu_ref_put_many+0x119/0x240 [ 45.213716] ? lock_downgrade+0x8f0/0x8f0 [ 45.217841] ? xas_find_conflict+0x360/0x8d0 [ 45.222230] ? kasan_check_write+0x14/0x20 [ 45.226445] ? do_raw_spin_lock+0xc1/0x200 [ 45.230663] shmem_add_to_page_cache+0x98e/0x1450 [ 45.235487] ? shmem_write_end+0x9a0/0x9a0 [ 45.239727] ? mem_cgroup_try_charge+0x548/0xa70 [ 45.244463] ? mem_cgroup_protected+0xa60/0xa60 [ 45.249115] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 45.254631] ? shmem_alloc_and_acct_page+0x31a/0x820 [ 45.259716] ? shmem_getattr+0x2c0/0x2c0 [ 45.263773] ? dequeue_task_fair+0xa10/0xa10 [ 45.268176] ? rb_erase+0x3550/0x3550 [ 45.271960] shmem_getpage_gfp+0xaad/0x3ec0 [ 45.276263] ? check_preempt_curr+0x1ec/0x3a0 [ 45.280751] ? shmem_writepage+0x13a0/0x13a0 [ 45.285161] ? lock_release+0xa30/0xa30 [ 45.289117] ? update_curr+0x4c8/0xc00 [ 45.292986] ? lock_downgrade+0x8f0/0x8f0 [ 45.297114] ? trace_hardirqs_on+0x10/0x10 [ 45.301327] ? cpuacct_charge+0x30a/0x5d0 [ 45.305453] ? cgroup_rstat_updated+0xe6/0x470 [ 45.310015] ? migrate_swap_stop+0x850/0x850 [ 45.314407] ? trace_hardirqs_on+0x10/0x10 [ 45.318638] ? __account_cfs_rq_runtime+0x770/0x770 [ 45.323634] ? is_bpf_text_address+0xae/0x170 [ 45.328108] ? lock_downgrade+0x8f0/0x8f0 [ 45.332244] ? __account_cfs_rq_runtime+0x770/0x770 [ 45.337242] ? trace_hardirqs_on+0x10/0x10 [ 45.341468] ? active_load_balance_cpu_stop+0x1030/0x1030 [ 45.346984] ? trace_hardirqs_on+0x10/0x10 [ 45.351199] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 45.356197] ? bpf_prog_kallsyms_find+0xde/0x4c0 [ 45.360936] ? trace_hardirqs_on+0x10/0x10 [ 45.365150] ? lock_acquire+0x1e4/0x540 [ 45.369103] ? is_bpf_text_address+0xae/0x170 [ 45.373580] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 45.378578] ? bpf_prog_kallsyms_find+0xde/0x4c0 [ 45.383316] ? trace_hardirqs_on+0x10/0x10 [ 45.387528] ? lock_downgrade+0x8f0/0x8f0 [ 45.391657] ? trace_hardirqs_on+0x10/0x10 [ 45.395886] ? lock_acquire+0x1e4/0x540 [ 45.399838] ? simple_xattr_get+0x106/0x180 [ 45.404142] ? current_time+0x72/0x1b0 [ 45.408008] ? lock_downgrade+0x8f0/0x8f0 [ 45.412139] ? kasan_check_read+0x11/0x20 [ 45.416281] ? lock_release+0xa30/0xa30 [ 45.420248] ? kasan_check_write+0x14/0x20 [ 45.424460] ? do_raw_spin_lock+0xc1/0x200 [ 45.428677] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 45.434208] ? iov_iter_fault_in_readable+0x23d/0x460 [ 45.439378] ? copy_page_from_iter+0x890/0x890 [ 45.443938] ? __sanitizer_cov_trace_cmp4+0x10/0x20 [ 45.448933] ? ktime_get_coarse_real_ts64+0x243/0x3a0 [ 45.454105] shmem_write_begin+0x10a/0x1e0 [ 45.458325] generic_perform_write+0x3ae/0x6c0 [ 45.462888] ? add_page_wait_queue+0x2c0/0x2c0 [ 45.467466] ? file_update_time+0xe4/0x640 [ 45.471683] ? current_time+0x1b0/0x1b0 [ 45.475642] ? down_write+0x8f/0x130 [ 45.479337] __generic_file_write_iter+0x26e/0x630 [ 45.484246] ? timespec64_trunc+0xea/0x180 [ 45.488461] generic_file_write_iter+0x438/0x870 [ 45.493207] ? __generic_file_write_iter+0x630/0x630 [ 45.498302] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 45.503818] ? iov_iter_init+0xc9/0x1f0 [ 45.507775] __vfs_write+0x6c6/0x9f0 [ 45.511469] ? kernel_read+0x120/0x120 [ 45.515857] ? lock_release+0xa30/0xa30 [ 45.519813] ? check_same_owner+0x340/0x340 [ 45.524123] ? __fget_light+0x2f7/0x440 [ 45.528075] ? fget_raw+0x20/0x20 [ 45.531526] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 45.537048] ? __sb_start_write+0x17f/0x300 [ 45.541351] vfs_write+0x1fc/0x560 [ 45.544874] ksys_pwrite64+0x181/0x1b0 [ 45.548849] ? __ia32_sys_pread64+0xf0/0xf0 [ 45.553150] ? __sb_end_write+0xac/0xe0 [ 45.557117] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 45.562646] ? do_sys_ftruncate+0x44e/0x560 [ 45.566951] __x64_sys_pwrite64+0x97/0xf0 [ 45.571111] do_syscall_64+0x1b9/0x820 [ 45.575006] ? syscall_return_slowpath+0x5e0/0x5e0 [ 45.579939] ? syscall_return_slowpath+0x31d/0x5e0 [ 45.584872] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 45.589885] ? prepare_exit_to_usermode+0x291/0x3b0 [ 45.594901] ? perf_trace_sys_enter+0xb10/0xb10 [ 45.599563] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 45.604488] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 45.609667] RIP: 0033:0x401d43 [ 45.612847] Code: ff 0f 83 70 0a 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 83 3d 8d 69 2d 00 00 75 17 49 89 ca b8 12 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 41 0a 00 00 c3 48 83 ec 08 e8 f7 00 00 00 [ 45.631999] RSP: 002b:00007fff17a0fb78 EFLAGS: 00000246 ORIG_RAX: 0000000000000012 [ 45.639781] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 0000000000401d43 [ 45.647037] RDX: 000000000000003d RSI: 0000000020000240 RDI: 0000000000000005 [ 45.654290] RBP: 0000000000020000 R08: 0000000000000001 R09: 0000000000000000 [ 45.661556] R10: 0000000000010000 R11: 0000000000000246 R12: ffffffffffffffff [ 45.668808] R13: 0000000000000004 R14: 0000000000000000 R15: 0000000000000000 [ 45.676085] CPU: 0 PID: 4475 Comm: syz-executor348 Not tainted 4.18.0-rc3-next-20180706+ #1 [ 45.684593] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 45.693934] Call Trace: [ 45.696620] dump_stack+0x1c9/0x2b4 [ 45.700243] ? dump_stack_print_info.cold.2+0x52/0x52 [ 45.705422] ? save_stack+0xa9/0xd0 [ 45.709035] should_fail.cold.4+0xa/0x11 [ 45.713179] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 45.718269] ? address_space_init_once+0x30/0x30 [ 45.723017] ? __put_user_ns+0x60/0x60 [ 45.726908] ? lock_downgrade+0x8f0/0x8f0 [ 45.731036] ? current_time+0x72/0x1b0 [ 45.734925] ? lock_downgrade+0x8f0/0x8f0 [ 45.739055] ? kasan_check_write+0x14/0x20 [ 45.743274] ? __lockdep_init_map+0x105/0x590 [ 45.747764] ? lock_acquire+0x1e4/0x540 [ 45.751720] ? fs_reclaim_acquire+0x20/0x20 [ 45.756029] ? lock_downgrade+0x8f0/0x8f0 [ 45.760258] ? check_same_owner+0x340/0x340 [ 45.764560] ? rcu_note_context_switch+0x730/0x730 [ 45.769471] ? kasan_check_read+0x11/0x20 [ 45.773609] __should_failslab+0x124/0x180 [ 45.777826] should_failslab+0x9/0x14 [ 45.781620] kmem_cache_alloc+0x2af/0x760 [ 45.785751] ? _raw_spin_unlock+0x22/0x30 [ 45.790003] ? __d_instantiate+0x522/0x750 [ 45.794231] __get_empty_filp+0x11b/0x620 [ 45.798357] ? d_instantiate+0x79/0xa0 [ 45.802225] ? proc_nr_files+0x60/0x60 [ 45.806104] ? do_raw_spin_lock+0xc1/0x200 [ 45.810323] ? kasan_check_read+0x11/0x20 [ 45.814462] ? do_raw_spin_unlock+0xa7/0x2f0 [ 45.818861] ? do_raw_spin_trylock+0x1c0/0x1c0 [ 45.823435] ? kasan_check_write+0x14/0x20 [ 45.827648] ? do_raw_spin_lock+0xc1/0x200 [ 45.831862] alloc_file+0x29/0x3e0 [ 45.835395] ? clear_nlink.part.10+0x65/0x80 [ 45.839799] __shmem_file_setup+0x313/0x700 [ 45.844106] ? check_same_owner+0x340/0x340 [ 45.848442] ? shmem_fill_super+0xa50/0xa50 [ 45.852747] ? get_unused_fd_flags+0x122/0x1a0 [ 45.857308] ? __alloc_fd+0x710/0x710 [ 45.861092] shmem_file_setup+0x2f/0x40 [ 45.865059] __x64_sys_memfd_create+0x2af/0x4f0 [ 45.869709] ? memfd_fcntl+0x1e80/0x1e80 [ 45.873756] do_syscall_64+0x1b9/0x820 [ 45.877624] ? syscall_return_slowpath+0x5e0/0x5e0 [ 45.882536] ? syscall_return_slowpath+0x31d/0x5e0 [ 45.887462] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 45.892458] ? prepare_exit_to_usermode+0x291/0x3b0 [ 45.897474] ? perf_trace_sys_enter+0xb10/0xb10 [ 45.902995] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 45.907938] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 45.913113] RIP: 0033:0x445bd9 [ 45.916277] Code: dd cb fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 ab cb fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 45.935411] RSP: 002b:00007fff17a0fb78 EFLAGS: 00000293 ORIG_RAX: 000000000000013f executing program [ 45.943108] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000445bd9 [ 45.950358] RDX: 0000000000010000 RSI: 0000000000000000 RDI: 00000000004a79ef [ 45.957625] RBP: 0000000000010000 R08: 0000000000000001 R09: 0000000000000000 [ 45.964875] R10: 0000000000000000 R11: 0000000000000293 R12: ffffffffffffffff [ 45.972125] R13: 0000000000000004 R14: 0000000000000000 R15: 0000000000000000 [ 45.996154] FAULT_INJECTION: forcing a failure. [ 45.996154] name failslab, interval 1, probability 0, space 0, times 0 [ 46.007909] CPU: 0 PID: 4480 Comm: syz-executor348 Not tainted 4.18.0-rc3-next-20180706+ #1 [ 46.016376] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 46.025722] Call Trace: [ 46.028300] dump_stack+0x1c9/0x2b4 [ 46.031910] ? dump_stack_print_info.cold.2+0x52/0x52 [ 46.037083] ? attach_entity_load_avg+0x860/0x860 [ 46.041905] should_fail.cold.4+0xa/0x11 [ 46.045955] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 46.051050] ? rb_erase+0x3550/0x3550 [ 46.054833] ? account_entity_enqueue+0x3ec/0x700 [ 46.059656] ? __enqueue_entity+0x10d/0x1f0 [ 46.063959] ? trace_hardirqs_on+0x10/0x10 [ 46.068172] ? enqueue_entity+0x34b/0x2130 [ 46.072534] ? __update_load_avg_blocked_se.isra.34+0x460/0x460 [ 46.078580] ? __update_load_avg_blocked_se.isra.34+0x460/0x460 [ 46.084632] ? update_load_avg+0x2de/0x2590 [ 46.088941] ? attach_entity_load_avg+0x860/0x860 [ 46.093772] __should_failslab+0x124/0x180 [ 46.097995] should_failslab+0x9/0x14 [ 46.101781] kmem_cache_alloc+0x47/0x760 [ 46.105827] ? trace_hardirqs_on+0x10/0x10 [ 46.110046] xas_alloc+0x38a/0x490 [ 46.113567] ? minmax_running_min+0x690/0x690 [ 46.118043] xas_create+0x3ae/0x1150 [ 46.121736] ? fs_reclaim_acquire+0x20/0x20 [ 46.126048] ? xas_descend+0x5f0/0x5f0 [ 46.129916] ? lock_acquire+0x1e4/0x540 [ 46.133869] ? percpu_ref_tryget_live+0x143/0x440 [ 46.138700] ? lock_downgrade+0x8f0/0x8f0 [ 46.142828] ? lock_release+0xa30/0xa30 [ 46.146782] ? __alloc_pages_nodemask+0x6e3/0xdb0 [ 46.151618] ? trace_hardirqs_on+0xd/0x10 [ 46.155747] ? try_charge+0xbc2/0x1680 [ 46.159615] xas_store+0xce/0x1720 [ 46.163146] ? xas_find_tagged+0x1440/0x1440 [ 46.167535] ? lock_acquire+0x1e4/0x540 [ 46.171489] ? shmem_add_to_page_cache+0x8b9/0x1450 [ 46.176499] ? xa_find_after+0x9a0/0x9a0 [ 46.180549] ? percpu_ref_put_many+0x119/0x240 [ 46.185111] ? lock_downgrade+0x8f0/0x8f0 [ 46.189240] ? xas_find_conflict+0x360/0x8d0 [ 46.193628] ? kasan_check_write+0x14/0x20 [ 46.198207] ? do_raw_spin_lock+0xc1/0x200 [ 46.202424] shmem_add_to_page_cache+0x98e/0x1450 [ 46.207353] ? shmem_write_end+0x9a0/0x9a0 [ 46.211570] ? mem_cgroup_try_charge+0x548/0xa70 [ 46.216345] ? mem_cgroup_protected+0xa60/0xa60 [ 46.220999] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 46.226517] ? shmem_alloc_and_acct_page+0x31a/0x820 [ 46.231611] ? shmem_getattr+0x2c0/0x2c0 [ 46.235651] ? dequeue_task_fair+0xa10/0xa10 [ 46.240044] ? rb_erase+0x3550/0x3550 [ 46.243842] shmem_getpage_gfp+0xaad/0x3ec0 [ 46.248156] ? check_preempt_curr+0x1ec/0x3a0 [ 46.252639] ? shmem_writepage+0x13a0/0x13a0 [ 46.257027] ? lock_release+0xa30/0xa30 [ 46.260992] ? update_curr+0x4c8/0xc00 [ 46.264859] ? lock_downgrade+0x8f0/0x8f0 [ 46.268997] ? trace_hardirqs_on+0x10/0x10 [ 46.273212] ? cpuacct_charge+0x30a/0x5d0 [ 46.277342] ? cgroup_rstat_updated+0xe6/0x470 [ 46.281906] ? migrate_swap_stop+0x850/0x850 [ 46.286386] ? trace_hardirqs_on+0x10/0x10 [ 46.290601] ? __account_cfs_rq_runtime+0x770/0x770 [ 46.295599] ? is_bpf_text_address+0xae/0x170 [ 46.300084] ? lock_downgrade+0x8f0/0x8f0 [ 46.304210] ? __account_cfs_rq_runtime+0x770/0x770 [ 46.309208] ? set_next_entity+0x2eb/0xc70 [ 46.313420] ? trace_hardirqs_on+0x10/0x10 [ 46.317635] ? active_load_balance_cpu_stop+0x1030/0x1030 [ 46.323156] ? trace_hardirqs_on+0x10/0x10 [ 46.327382] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 46.332396] ? bpf_prog_kallsyms_find+0xde/0x4c0 [ 46.337135] ? trace_hardirqs_on+0x10/0x10 [ 46.341349] ? lock_acquire+0x1e4/0x540 [ 46.345306] ? is_bpf_text_address+0xae/0x170 [ 46.349781] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 46.354777] ? bpf_prog_kallsyms_find+0xde/0x4c0 [ 46.359513] ? trace_hardirqs_on+0x10/0x10 [ 46.363725] ? lock_downgrade+0x8f0/0x8f0 [ 46.367849] ? trace_hardirqs_on+0x10/0x10 [ 46.372075] ? kasan_check_read+0x11/0x20 [ 46.376205] ? lock_acquire+0x1e4/0x540 [ 46.380173] ? simple_xattr_get+0x106/0x180 [ 46.384486] ? current_time+0x72/0x1b0 [ 46.388368] ? lock_downgrade+0x8f0/0x8f0 [ 46.392493] ? kasan_check_read+0x11/0x20 [ 46.396622] ? lock_release+0xa30/0xa30 [ 46.400584] ? kasan_check_write+0x14/0x20 [ 46.404800] ? do_raw_spin_lock+0xc1/0x200 [ 46.409017] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 46.414534] ? iov_iter_fault_in_readable+0x23d/0x460 [ 46.419705] ? copy_page_from_iter+0x890/0x890 [ 46.424281] ? __sanitizer_cov_trace_cmp4+0x10/0x20 [ 46.429284] ? ktime_get_coarse_real_ts64+0x243/0x3a0 [ 46.434461] shmem_write_begin+0x10a/0x1e0 [ 46.438693] generic_perform_write+0x3ae/0x6c0 [ 46.443266] ? add_page_wait_queue+0x2c0/0x2c0 [ 46.447833] ? file_update_time+0xe4/0x640 [ 46.452051] ? current_time+0x1b0/0x1b0 [ 46.456012] ? down_write+0x8f/0x130 [ 46.459708] __generic_file_write_iter+0x26e/0x630 [ 46.464618] ? timespec64_trunc+0xea/0x180 [ 46.468839] generic_file_write_iter+0x438/0x870 [ 46.473590] ? __generic_file_write_iter+0x630/0x630 [ 46.478680] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 46.484201] ? iov_iter_init+0xc9/0x1f0 [ 46.488170] __vfs_write+0x6c6/0x9f0 [ 46.491864] ? kernel_read+0x120/0x120 [ 46.495736] ? lock_release+0xa30/0xa30 [ 46.499698] ? check_same_owner+0x340/0x340 [ 46.504002] ? __fget_light+0x2f7/0x440 [ 46.507956] ? fget_raw+0x20/0x20 [ 46.511402] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 46.516930] ? __sb_start_write+0x17f/0x300 [ 46.521231] vfs_write+0x1fc/0x560 [ 46.524752] ksys_pwrite64+0x181/0x1b0 [ 46.528618] ? __ia32_sys_pread64+0xf0/0xf0 [ 46.532920] ? __sb_end_write+0xac/0xe0 [ 46.536872] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 46.542390] ? do_sys_ftruncate+0x44e/0x560 [ 46.546691] __x64_sys_pwrite64+0x97/0xf0 [ 46.550822] do_syscall_64+0x1b9/0x820 [ 46.554689] ? syscall_return_slowpath+0x5e0/0x5e0 [ 46.559598] ? syscall_return_slowpath+0x31d/0x5e0 [ 46.564507] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 46.569512] ? prepare_exit_to_usermode+0x291/0x3b0 [ 46.574518] ? perf_trace_sys_enter+0xb10/0xb10 [ 46.579169] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 46.583995] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 46.589164] RIP: 0033:0x401d43 [ 46.592330] Code: ff 0f 83 70 0a 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 83 3d 8d 69 2d 00 00 75 17 49 89 ca b8 12 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 41 0a 00 00 c3 48 83 ec 08 e8 f7 00 00 00 [ 46.611457] RSP: 002b:00007fff17a0fb78 EFLAGS: 00000246 ORIG_RAX: 0000000000000012 [ 46.619144] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 0000000000401d43 [ 46.626392] RDX: 000000000000003d RSI: 0000000020000240 RDI: 0000000000000005 [ 46.633725] RBP: 0000000000020000 R08: 0000000000000001 R09: 0000000000000000 [ 46.642103] R10: 0000000000010000 R11: 0000000000000246 R12: ffffffffffffffff executing program [ 46.649355] R13: 0000000000000004 R14: 0000000000000000 R15: 0000000000000000 [ 46.667661] FAULT_INJECTION: forcing a failure. [ 46.667661] name failslab, interval 1, probability 0, space 0, times 0 [ 46.678873] CPU: 0 PID: 4482 Comm: syz-executor348 Not tainted 4.18.0-rc3-next-20180706+ #1 [ 46.687352] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 46.696831] Call Trace: [ 46.699421] dump_stack+0x1c9/0x2b4 [ 46.703056] ? dump_stack_print_info.cold.2+0x52/0x52 [ 46.708237] ? dequeue_task_fair+0xa10/0xa10 [ 46.712637] should_fail.cold.4+0xa/0x11 [ 46.716703] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 46.721810] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 46.726860] ? bpf_prog_kallsyms_find+0xde/0x4c0 [ 46.731624] ? lock_acquire+0x1e4/0x540 [ 46.735592] ? is_bpf_text_address+0xae/0x170 [ 46.740078] ? lock_downgrade+0x8f0/0x8f0 [ 46.744209] ? lock_release+0xa30/0xa30 [ 46.748168] ? trace_hardirqs_on+0x10/0x10 [ 46.752386] ? kasan_check_read+0x11/0x20 [ 46.756522] ? __update_load_avg_blocked_se.isra.34+0x460/0x460 [ 46.763021] ? rcu_cleanup_dead_rnp+0x200/0x200 [ 46.767675] ? trace_hardirqs_on+0x10/0x10 [ 46.771889] ? attach_entity_load_avg+0x860/0x860 [ 46.776711] ? __save_stack_trace+0x8d/0xf0 [ 46.781017] __should_failslab+0x124/0x180 [ 46.785242] should_failslab+0x9/0x14 [ 46.789022] kmem_cache_alloc+0x47/0x760 [ 46.793411] ? trace_hardirqs_on+0x10/0x10 [ 46.797627] xas_alloc+0x38a/0x490 [ 46.801146] ? minmax_running_min+0x690/0x690 [ 46.805619] ? trace_hardirqs_on+0x10/0x10 [ 46.809830] ? percpu_ref_put_many+0x119/0x240 [ 46.814403] xas_create+0x3ae/0x1150 [ 46.818194] ? fs_reclaim_acquire+0x20/0x20 [ 46.822500] ? xas_descend+0x5f0/0x5f0 [ 46.826368] ? lock_acquire+0x1e4/0x540 [ 46.830321] ? percpu_ref_tryget_live+0x143/0x440 [ 46.835158] ? lock_downgrade+0x8f0/0x8f0 [ 46.839297] ? lock_release+0xa30/0xa30 [ 46.843252] ? __alloc_pages_nodemask+0x6e3/0xdb0 [ 46.848181] ? kasan_check_read+0x11/0x20 [ 46.852317] ? trace_hardirqs_on+0xd/0x10 [ 46.856450] ? try_charge+0xbc2/0x1680 [ 46.860337] xas_store+0xce/0x1720 [ 46.863866] ? xas_find_tagged+0x1440/0x1440 [ 46.868256] ? lock_acquire+0x1e4/0x540 [ 46.872214] ? shmem_add_to_page_cache+0x8b9/0x1450 [ 46.877210] ? xa_find_after+0x9a0/0x9a0 [ 46.881255] ? percpu_ref_put_many+0x119/0x240 [ 46.885816] ? lock_downgrade+0x8f0/0x8f0 [ 46.889960] ? xas_find_conflict+0x360/0x8d0 [ 46.894361] ? kasan_check_write+0x14/0x20 [ 46.898574] ? do_raw_spin_lock+0xc1/0x200 [ 46.902798] shmem_add_to_page_cache+0x98e/0x1450 [ 46.907623] ? shmem_write_end+0x9a0/0x9a0 [ 46.911867] ? mem_cgroup_try_charge+0x548/0xa70 [ 46.916604] ? mem_cgroup_protected+0xa60/0xa60 [ 46.921258] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 46.926776] ? shmem_alloc_and_acct_page+0x31a/0x820 [ 46.931861] ? shmem_getattr+0x2c0/0x2c0 [ 46.935902] ? dequeue_task_fair+0xa10/0xa10 [ 46.940291] ? rb_erase+0x3550/0x3550 [ 46.944076] shmem_getpage_gfp+0xaad/0x3ec0 [ 46.948386] ? shmem_writepage+0x13a0/0x13a0 [ 46.952780] ? lock_release+0xa30/0xa30 [ 46.956752] ? update_curr+0x4c8/0xc00 [ 46.960621] ? lock_downgrade+0x8f0/0x8f0 [ 46.964752] ? trace_hardirqs_on+0x10/0x10 [ 46.968980] ? cpuacct_charge+0x30a/0x5d0 [ 46.973114] ? cgroup_rstat_updated+0xe6/0x470 [ 46.977679] ? migrate_swap_stop+0x850/0x850 [ 46.982076] ? trace_hardirqs_on+0x10/0x10 [ 46.986292] ? __account_cfs_rq_runtime+0x770/0x770 [ 46.993308] ? is_bpf_text_address+0xae/0x170 [ 46.997906] ? lock_downgrade+0x8f0/0x8f0 [ 47.002053] ? __account_cfs_rq_runtime+0x770/0x770 [ 47.007064] ? set_next_entity+0x2eb/0xc70 [ 47.011298] ? trace_hardirqs_on+0x10/0x10 [ 47.015528] ? active_load_balance_cpu_stop+0x1030/0x1030 [ 47.021064] ? trace_hardirqs_on+0x10/0x10 [ 47.025300] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 47.030315] ? bpf_prog_kallsyms_find+0xde/0x4c0 [ 47.035108] ? trace_hardirqs_on+0x10/0x10 [ 47.039338] ? lock_acquire+0x1e4/0x540 [ 47.043393] ? is_bpf_text_address+0xae/0x170 [ 47.047898] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 47.052911] ? bpf_prog_kallsyms_find+0xde/0x4c0 [ 47.057665] ? trace_hardirqs_on+0x10/0x10 [ 47.061894] ? lock_downgrade+0x8f0/0x8f0 [ 47.066126] ? trace_hardirqs_on+0x10/0x10 [ 47.070364] ? kasan_check_read+0x11/0x20 [ 47.074511] ? lock_acquire+0x1e4/0x540 [ 47.078492] ? simple_xattr_get+0x106/0x180 [ 47.082814] ? current_time+0x72/0x1b0 [ 47.086698] ? lock_downgrade+0x8f0/0x8f0 [ 47.090840] ? kasan_check_read+0x11/0x20 [ 47.094986] ? lock_release+0xa30/0xa30 [ 47.098956] ? kasan_check_write+0x14/0x20 [ 47.103184] ? do_raw_spin_lock+0xc1/0x200 [ 47.107417] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 47.112954] ? iov_iter_fault_in_readable+0x23d/0x460 [ 47.118139] ? copy_page_from_iter+0x890/0x890 [ 47.122715] ? __sanitizer_cov_trace_cmp4+0x10/0x20 [ 47.127739] ? ktime_get_coarse_real_ts64+0x243/0x3a0 [ 47.132928] shmem_write_begin+0x10a/0x1e0 [ 47.137163] generic_perform_write+0x3ae/0x6c0 [ 47.141748] ? add_page_wait_queue+0x2c0/0x2c0 [ 47.146324] ? file_update_time+0xe4/0x640 [ 47.150556] ? current_time+0x1b0/0x1b0 [ 47.154535] ? down_write+0x8f/0x130 [ 47.158246] __generic_file_write_iter+0x26e/0x630 [ 47.163168] ? timespec64_trunc+0xea/0x180 [ 47.167402] generic_file_write_iter+0x438/0x870 [ 47.172157] ? __generic_file_write_iter+0x630/0x630 [ 47.177670] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 47.183202] ? iov_iter_init+0xc9/0x1f0 [ 47.187350] __vfs_write+0x6c6/0x9f0 [ 47.191072] ? kernel_read+0x120/0x120 [ 47.194955] ? lock_release+0xa30/0xa30 [ 47.199010] ? check_same_owner+0x340/0x340 [ 47.203427] ? __fget_light+0x2f7/0x440 [ 47.209315] ? fget_raw+0x20/0x20 [ 47.212768] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 47.218300] ? __sb_start_write+0x17f/0x300 [ 47.222617] vfs_write+0x1fc/0x560 [ 47.226155] ksys_pwrite64+0x181/0x1b0 [ 47.230039] ? __ia32_sys_pread64+0xf0/0xf0 [ 47.234357] ? __sb_end_write+0xac/0xe0 [ 47.238348] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 47.243888] ? do_sys_ftruncate+0x44e/0x560 [ 47.248209] __x64_sys_pwrite64+0x97/0xf0 [ 47.252360] do_syscall_64+0x1b9/0x820 [ 47.256246] ? syscall_return_slowpath+0x5e0/0x5e0 [ 47.261169] ? syscall_return_slowpath+0x31d/0x5e0 [ 47.266094] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 47.271107] ? prepare_exit_to_usermode+0x291/0x3b0 [ 47.276118] ? perf_trace_sys_enter+0xb10/0xb10 [ 47.280784] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 47.285624] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 47.290804] RIP: 0033:0x401d43 [ 47.293980] Code: ff 0f 83 70 0a 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 83 3d 8d 69 2d 00 00 75 17 49 89 ca b8 12 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 41 0a 00 00 c3 48 83 ec 08 e8 f7 00 00 00 [ 47.313846] RSP: 002b:00007fff17a0fb78 EFLAGS: 00000246 ORIG_RAX: 0000000000000012 [ 47.321563] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 0000000000401d43 [ 47.328823] RDX: 000000000000003d RSI: 0000000020000240 RDI: 0000000000000005 [ 47.336086] RBP: 0000000000020000 R08: 0000000000000001 R09: 0000000000000000 [ 47.343346] R10: 0000000000010000 R11: 0000000000000246 R12: ffffffffffffffff executing program executing program [ 47.350609] R13: 0000000000000004 R14: 0000000000000000 R15: 0000000000000000 [ 47.372009] FAULT_INJECTION: forcing a failure. [ 47.372009] name failslab, interval 1, probability 0, space 0, times 0 [ 47.383233] CPU: 0 PID: 4486 Comm: syz-executor348 Not tainted 4.18.0-rc3-next-20180706+ #1 [ 47.391728] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 47.401073] Call Trace: [ 47.403660] dump_stack+0x1c9/0x2b4 [ 47.407285] ? dump_stack_print_info.cold.2+0x52/0x52 [ 47.412474] should_fail.cold.4+0xa/0x11 [ 47.416545] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 47.421647] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 47.426658] ? bpf_prog_kallsyms_find+0xde/0x4c0 [ 47.431436] ? try_to_wake_up+0x10a/0x12b0 [ 47.435671] ? lock_downgrade+0x8f0/0x8f0 [ 47.439813] ? trace_hardirqs_on+0x10/0x10 [ 47.444045] ? do_raw_spin_unlock+0xa7/0x2f0 [ 47.448451] ? do_raw_spin_trylock+0x1c0/0x1c0 [ 47.453042] ? trace_hardirqs_on+0x10/0x10 [ 47.457273] ? kasan_check_write+0x14/0x20 [ 47.461503] ? do_raw_spin_lock+0xc1/0x200 [ 47.465736] ? trace_hardirqs_on+0x10/0x10 [ 47.469965] ? unwind_get_return_address+0x61/0xa0 [ 47.474890] __should_failslab+0x124/0x180 [ 47.479124] should_failslab+0x9/0x14 [ 47.482919] kmem_cache_alloc+0x47/0x760 [ 47.486995] ? trace_hardirqs_on+0x10/0x10 [ 47.491242] xas_alloc+0x38a/0x490 [ 47.494785] ? minmax_running_min+0x690/0x690 [ 47.499279] xas_create+0x3ae/0x1150 [ 47.502991] ? fs_reclaim_acquire+0x20/0x20 [ 47.507310] ? xas_descend+0x5f0/0x5f0 [ 47.511198] ? lock_acquire+0x1e4/0x540 [ 47.515167] ? percpu_ref_tryget_live+0x143/0x440 [ 47.520015] ? lock_downgrade+0x8f0/0x8f0 [ 47.524162] ? lock_release+0xa30/0xa30 [ 47.528132] ? __alloc_pages_nodemask+0x6e3/0xdb0 [ 47.532984] ? trace_hardirqs_on+0xd/0x10 [ 47.537126] ? try_charge+0xbc2/0x1680 [ 47.541008] xas_store+0xce/0x1720 [ 47.544637] ? xas_find_tagged+0x1440/0x1440 [ 47.549057] ? lock_acquire+0x1e4/0x540 [ 47.553030] ? shmem_add_to_page_cache+0x8b9/0x1450 [ 47.558046] ? xa_find_after+0x9a0/0x9a0 [ 47.562101] ? percpu_ref_put_many+0x119/0x240 [ 47.566681] ? lock_downgrade+0x8f0/0x8f0 [ 47.570823] ? xas_find_conflict+0x360/0x8d0 [ 47.575229] ? kasan_check_write+0x14/0x20 [ 47.579470] ? do_raw_spin_lock+0xc1/0x200 [ 47.583717] shmem_add_to_page_cache+0x98e/0x1450 [ 47.588565] ? shmem_write_end+0x9a0/0x9a0 [ 47.592809] ? mem_cgroup_try_charge+0x548/0xa70 [ 47.597560] ? mem_cgroup_protected+0xa60/0xa60 [ 47.602255] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 47.607804] ? shmem_alloc_and_acct_page+0x31a/0x820 [ 47.612904] ? shmem_getattr+0x2c0/0x2c0 [ 47.616965] ? trace_hardirqs_on+0x10/0x10 [ 47.621207] ? __wake_up_common_lock+0x1d0/0x330 [ 47.625965] shmem_getpage_gfp+0xaad/0x3ec0 [ 47.630306] ? shmem_writepage+0x13a0/0x13a0 [ 47.634896] ? kasan_check_write+0x14/0x20 [ 47.639126] ? do_raw_spin_lock+0xc1/0x200 [ 47.643442] ? trace_hardirqs_off+0xd/0x10 [ 47.648564] ? _raw_spin_unlock_irqrestore+0x63/0xc0 [ 47.653663] ? trace_hardirqs_on+0x10/0x10 [ 47.657894] ? migrate_swap_stop+0x850/0x850 [ 47.662299] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 47.667311] ? bpf_prog_kallsyms_find+0xde/0x4c0 [ 47.672064] ? trace_hardirqs_on+0x10/0x10 [ 47.676295] ? lock_acquire+0x1e4/0x540 [ 47.680264] ? is_bpf_text_address+0xae/0x170 [ 47.684760] ? lock_downgrade+0x8f0/0x8f0 [ 47.688903] ? lock_release+0xa30/0xa30 [ 47.692876] ? trace_hardirqs_on+0x10/0x10 [ 47.697107] ? trace_hardirqs_on+0x10/0x10 [ 47.701334] ? need_to_create_worker+0x280/0x280 [ 47.706358] ? do_raw_spin_unlock+0xa7/0x2f0 [ 47.710765] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 47.715779] ? bpf_prog_kallsyms_find+0xde/0x4c0 [ 47.720534] ? trace_hardirqs_on+0x10/0x10 [ 47.724762] ? lock_acquire+0x1e4/0x540 [ 47.728727] ? is_bpf_text_address+0xae/0x170 [ 47.733222] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 47.738247] ? bpf_prog_kallsyms_find+0xde/0x4c0 [ 47.743003] ? trace_hardirqs_on+0x10/0x10 [ 47.747235] ? lock_downgrade+0x8f0/0x8f0 [ 47.751378] ? trace_hardirqs_on+0x10/0x10 [ 47.755703] ? kasan_check_read+0x11/0x20 [ 47.759847] ? lock_acquire+0x1e4/0x540 [ 47.763813] ? simple_xattr_get+0x106/0x180 [ 47.768218] ? current_time+0x72/0x1b0 [ 47.772104] ? lock_downgrade+0x8f0/0x8f0 [ 47.776245] ? kasan_check_read+0x11/0x20 [ 47.780392] ? lock_release+0xa30/0xa30 [ 47.784363] ? kasan_check_write+0x14/0x20 [ 47.788595] ? do_raw_spin_lock+0xc1/0x200 [ 47.792828] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 47.798448] ? iov_iter_fault_in_readable+0x23d/0x460 [ 47.803635] ? copy_page_from_iter+0x890/0x890 [ 47.808210] ? __sanitizer_cov_trace_cmp4+0x10/0x20 [ 47.813223] ? ktime_get_coarse_real_ts64+0x243/0x3a0 [ 47.818416] shmem_write_begin+0x10a/0x1e0 [ 47.822651] generic_perform_write+0x3ae/0x6c0 [ 47.827236] ? add_page_wait_queue+0x2c0/0x2c0 [ 47.832097] ? file_update_time+0xe4/0x640 [ 47.836346] ? current_time+0x1b0/0x1b0 [ 47.840321] ? down_write+0x8f/0x130 [ 47.844040] __generic_file_write_iter+0x26e/0x630 [ 47.848962] ? timespec64_trunc+0xea/0x180 [ 47.853206] generic_file_write_iter+0x438/0x870 [ 47.857959] ? __generic_file_write_iter+0x630/0x630 [ 47.863060] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 47.868590] ? iov_iter_init+0xc9/0x1f0 [ 47.872563] __vfs_write+0x6c6/0x9f0 [ 47.876273] ? kernel_read+0x120/0x120 [ 47.880159] ? lock_release+0xa30/0xa30 [ 47.884127] ? check_same_owner+0x340/0x340 [ 47.888454] ? __fget_light+0x2f7/0x440 [ 47.892425] ? fget_raw+0x20/0x20 [ 47.895964] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 47.901495] ? __sb_start_write+0x17f/0x300 [ 47.905820] vfs_write+0x1fc/0x560 [ 47.909359] ksys_pwrite64+0x181/0x1b0 [ 47.913247] ? __ia32_sys_pread64+0xf0/0xf0 [ 47.917563] ? __sb_end_write+0xac/0xe0 [ 47.921538] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 47.927085] ? do_sys_ftruncate+0x44e/0x560 [ 47.931402] __x64_sys_pwrite64+0x97/0xf0 [ 47.935556] do_syscall_64+0x1b9/0x820 [ 47.939450] ? syscall_return_slowpath+0x5e0/0x5e0 [ 47.944397] ? syscall_return_slowpath+0x31d/0x5e0 [ 47.949320] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 47.954346] ? prepare_exit_to_usermode+0x291/0x3b0 [ 47.959386] ? perf_trace_sys_enter+0xb10/0xb10 [ 47.964050] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 47.968890] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 47.974071] RIP: 0033:0x401d43 [ 47.977246] Code: ff 0f 83 70 0a 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 83 3d 8d 69 2d 00 00 75 17 49 89 ca b8 12 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 41 0a 00 00 c3 48 83 ec 08 e8 f7 00 00 00 [ 47.996527] RSP: 002b:00007fff17a0fb78 EFLAGS: 00000246 ORIG_RAX: 0000000000000012 [ 48.004405] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 0000000000401d43 [ 48.011926] RDX: 000000000000003d RSI: 0000000020000240 RDI: 0000000000000005 [ 48.019187] RBP: 0000000000020000 R08: 0000000000000001 R09: 0000000000000000 [ 48.026458] R10: 0000000000010000 R11: 0000000000000246 R12: ffffffffffffffff [ 48.033719] R13: 0000000000000004 R14: 0000000000000000 R15: 0000000000000000 [ 48.048395] FAULT_INJECTION: forcing a failure. [ 48.048395] name failslab, interval 1, probability 0, space 0, times 0 [ 48.059623] CPU: 1 PID: 4484 Comm: syz-executor348 Not tainted 4.18.0-rc3-next-20180706+ #1 [ 48.068102] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 48.078834] Call Trace: [ 48.082009] dump_stack+0x1c9/0x2b4 [ 48.085634] ? dump_stack_print_info.cold.2+0x52/0x52 [ 48.090821] ? lock_acquire+0x1e4/0x540 [ 48.094789] ? percpu_ref_put_many+0x119/0x240 [ 48.099370] should_fail.cold.4+0xa/0x11 [ 48.103428] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 48.108527] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 48.113538] ? bpf_prog_kallsyms_find+0xde/0x4c0 [ 48.118638] ? lock_acquire+0x1e4/0x540 [ 48.122654] ? is_bpf_text_address+0xae/0x170 [ 48.127148] ? lock_downgrade+0x8f0/0x8f0 [ 48.131307] ? lock_release+0xa30/0xa30 [ 48.135280] ? trace_hardirqs_on+0x10/0x10 [ 48.139508] ? kasan_check_read+0x11/0x20 [ 48.143654] ? rcu_is_watching+0x8c/0x150 [ 48.147800] ? rcu_cleanup_dead_rnp+0x200/0x200 [ 48.152467] ? __update_load_avg_blocked_se.isra.34+0x460/0x460 [ 48.158527] ? update_load_avg+0x2de/0x2590 [ 48.162846] ? unwind_get_return_address+0x61/0xa0 [ 48.167786] __should_failslab+0x124/0x180 [ 48.172023] should_failslab+0x9/0x14 [ 48.175819] kmem_cache_alloc+0x47/0x760 [ 48.179887] ? trace_hardirqs_on+0x10/0x10 [ 48.184122] xas_alloc+0x38a/0x490 [ 48.187677] ? minmax_running_min+0x690/0x690 [ 48.192169] ? trace_hardirqs_on+0x10/0x10 [ 48.196397] ? percpu_ref_put_many+0x119/0x240 [ 48.200992] xas_create+0x3ae/0x1150 [ 48.204717] ? fs_reclaim_acquire+0x20/0x20 [ 48.209037] ? xas_descend+0x5f0/0x5f0 [ 48.212924] ? lock_acquire+0x1e4/0x540 [ 48.216896] ? percpu_ref_tryget_live+0x143/0x440 [ 48.221754] ? lock_downgrade+0x8f0/0x8f0 [ 48.225900] ? lock_release+0xa30/0xa30 [ 48.229870] ? __alloc_pages_nodemask+0x6e3/0xdb0 [ 48.234709] ? kasan_check_read+0x11/0x20 [ 48.238857] ? trace_hardirqs_on+0xd/0x10 [ 48.242998] ? try_charge+0xbc2/0x1680 [ 48.246882] xas_store+0xce/0x1720 [ 48.250416] ? xas_find_tagged+0x1440/0x1440 [ 48.254837] ? lock_acquire+0x1e4/0x540 [ 48.258818] ? shmem_add_to_page_cache+0x8b9/0x1450 [ 48.263850] ? xa_find_after+0x9a0/0x9a0 [ 48.267905] ? percpu_ref_put_many+0x119/0x240 [ 48.272483] ? lock_downgrade+0x8f0/0x8f0 [ 48.276627] ? xas_find_conflict+0x360/0x8d0 [ 48.281036] ? kasan_check_write+0x14/0x20 [ 48.285272] ? do_raw_spin_lock+0xc1/0x200 [ 48.289509] shmem_add_to_page_cache+0x98e/0x1450 [ 48.294356] ? shmem_write_end+0x9a0/0x9a0 [ 48.298590] ? mem_cgroup_try_charge+0x548/0xa70 [ 48.303341] ? mem_cgroup_protected+0xa60/0xa60 [ 48.308009] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 48.313543] ? shmem_alloc_and_acct_page+0x31a/0x820 [ 48.318643] ? shmem_getattr+0x2c0/0x2c0 [ 48.322705] ? trace_hardirqs_on+0x10/0x10 [ 48.326934] ? __wake_up_common_lock+0x1d0/0x330 [ 48.331690] shmem_getpage_gfp+0xaad/0x3ec0 [ 48.336017] ? shmem_writepage+0x13a0/0x13a0 [ 48.340426] ? kasan_check_write+0x14/0x20 [ 48.344651] ? do_raw_spin_lock+0xc1/0x200 [ 48.348897] ? trace_hardirqs_off+0xd/0x10 [ 48.353141] ? _raw_spin_unlock_irqrestore+0x63/0xc0 [ 48.358243] ? trace_hardirqs_on+0x10/0x10 [ 48.362476] ? migrate_swap_stop+0x850/0x850 [ 48.366882] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 48.371895] ? bpf_prog_kallsyms_find+0xde/0x4c0 [ 48.376645] ? trace_hardirqs_on+0x10/0x10 [ 48.380878] ? lock_acquire+0x1e4/0x540 [ 48.384848] ? is_bpf_text_address+0xae/0x170 [ 48.389342] ? lock_downgrade+0x8f0/0x8f0 [ 48.393495] ? lock_release+0xa30/0xa30 [ 48.397469] ? trace_hardirqs_on+0x10/0x10 [ 48.401702] ? trace_hardirqs_on+0x10/0x10 [ 48.405933] ? need_to_create_worker+0x280/0x280 [ 48.410685] ? kasan_check_read+0x11/0x20 [ 48.414834] ? do_raw_spin_unlock+0xa7/0x2f0 [ 48.419239] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 48.424251] ? bpf_prog_kallsyms_find+0xde/0x4c0 [ 48.429009] ? trace_hardirqs_on+0x10/0x10 [ 48.433234] ? is_bpf_text_address+0xae/0x170 [ 48.437740] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 48.442752] ? bpf_prog_kallsyms_find+0xde/0x4c0 [ 48.447505] ? trace_hardirqs_on+0x10/0x10 [ 48.451733] ? lock_downgrade+0x8f0/0x8f0 [ 48.455893] ? trace_hardirqs_on+0x10/0x10 [ 48.460127] ? kasan_check_read+0x11/0x20 [ 48.464271] ? lock_acquire+0x1e4/0x540 [ 48.468498] ? simple_xattr_get+0x106/0x180 [ 48.472819] ? current_time+0x72/0x1b0 [ 48.476705] ? lock_downgrade+0x8f0/0x8f0 [ 48.480849] ? kasan_check_read+0x11/0x20 [ 48.484997] ? lock_release+0xa30/0xa30 [ 48.488976] ? kasan_check_write+0x14/0x20 [ 48.493203] ? do_raw_spin_lock+0xc1/0x200 [ 48.497434] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 48.502969] ? iov_iter_fault_in_readable+0x23d/0x460 [ 48.508154] ? copy_page_from_iter+0x890/0x890 [ 48.512730] ? __sanitizer_cov_trace_cmp4+0x10/0x20 [ 48.517740] ? ktime_get_coarse_real_ts64+0x243/0x3a0 [ 48.522926] shmem_write_begin+0x10a/0x1e0 [ 48.527160] generic_perform_write+0x3ae/0x6c0 [ 48.531760] ? add_page_wait_queue+0x2c0/0x2c0 [ 48.536337] ? file_update_time+0xe4/0x640 [ 48.540569] ? current_time+0x1b0/0x1b0 [ 48.544545] ? down_write+0x8f/0x130 [ 48.548257] __generic_file_write_iter+0x26e/0x630 [ 48.553180] ? timespec64_trunc+0xea/0x180 [ 48.557415] generic_file_write_iter+0x438/0x870 [ 48.562168] ? __generic_file_write_iter+0x630/0x630 [ 48.567267] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 48.572797] ? iov_iter_init+0xc9/0x1f0 [ 48.576786] __vfs_write+0x6c6/0x9f0 [ 48.580518] ? kernel_read+0x120/0x120 [ 48.584420] ? lock_release+0xa30/0xa30 [ 48.588402] ? check_same_owner+0x340/0x340 [ 48.592716] ? __fget_light+0x2f7/0x440 [ 48.596682] ? fget_raw+0x20/0x20 [ 48.600140] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 48.605669] ? __sb_start_write+0x17f/0x300 [ 48.609987] vfs_write+0x1fc/0x560 [ 48.613522] ksys_pwrite64+0x181/0x1b0 [ 48.617404] ? __ia32_sys_pread64+0xf0/0xf0 [ 48.621722] ? __sb_end_write+0xac/0xe0 [ 48.625693] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 48.631225] ? do_sys_ftruncate+0x44e/0x560 [ 48.635545] __x64_sys_pwrite64+0x97/0xf0 [ 48.639690] do_syscall_64+0x1b9/0x820 [ 48.643574] ? syscall_return_slowpath+0x5e0/0x5e0 [ 48.648502] ? syscall_return_slowpath+0x31d/0x5e0 [ 48.653445] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 48.658457] ? prepare_exit_to_usermode+0x291/0x3b0 [ 48.663486] ? perf_trace_sys_enter+0xb10/0xb10 [ 48.668166] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 48.673009] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 48.678193] RIP: 0033:0x401d43 [ 48.681373] Code: ff 0f 83 70 0a 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 83 3d 8d 69 2d 00 00 75 17 49 89 ca b8 12 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 41 0a 00 00 c3 48 83 ec 08 e8 f7 00 00 00 [ 48.700630] RSP: 002b:00007fff17a0fb78 EFLAGS: 00000246 ORIG_RAX: 0000000000000012 executing program [ 48.708334] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 0000000000401d43 [ 48.715598] RDX: 000000000000003d RSI: 0000000020000240 RDI: 0000000000000005 [ 48.722877] RBP: 0000000000020000 R08: 0000000000000001 R09: 0000000000000000 [ 48.730139] R10: 0000000000010000 R11: 0000000000000246 R12: ffffffffffffffff [ 48.737401] R13: 0000000000000004 R14: 0000000000000000 R15: 0000000000000000 [ 48.758953] FAULT_INJECTION: forcing a failure. [ 48.758953] name failslab, interval 1, probability 0, space 0, times 0 [ 48.770184] CPU: 1 PID: 4488 Comm: syz-executor348 Not tainted 4.18.0-rc3-next-20180706+ #1 [ 48.778670] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 48.788013] Call Trace: [ 48.790605] dump_stack+0x1c9/0x2b4 [ 48.794230] ? dump_stack_print_info.cold.2+0x52/0x52 [ 48.799435] ? dequeue_task_fair+0xa10/0xa10 [ 48.803858] should_fail.cold.4+0xa/0x11 [ 48.807914] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 48.813014] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 48.818031] ? bpf_prog_kallsyms_find+0xde/0x4c0 [ 48.822803] ? lock_acquire+0x1e4/0x540 [ 48.826770] ? is_bpf_text_address+0xae/0x170 [ 48.831261] ? trace_hardirqs_on+0x10/0x10 [ 48.835492] ? trace_hardirqs_on+0x10/0x10 [ 48.839721] ? __update_load_avg_blocked_se.isra.34+0x460/0x460 [ 48.845774] ? rcu_cleanup_dead_rnp+0x200/0x200 [ 48.850446] ? trace_hardirqs_on+0x10/0x10 [ 48.854675] ? attach_entity_load_avg+0x860/0x860 [ 48.859511] ? __save_stack_trace+0x8d/0xf0 [ 48.863827] __should_failslab+0x124/0x180 [ 48.868059] should_failslab+0x9/0x14 [ 48.871854] kmem_cache_alloc+0x47/0x760 [ 48.875910] ? trace_hardirqs_on+0x10/0x10 [ 48.880141] xas_alloc+0x38a/0x490 [ 48.884373] ? minmax_running_min+0x690/0x690 [ 48.889038] ? lock_release+0xa30/0xa30 [ 48.893014] xas_create+0x3ae/0x1150 [ 48.896730] ? xas_descend+0x5f0/0x5f0 [ 48.900609] ? mem_cgroup_id_get_online+0x310/0x310 [ 48.905621] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 48.911152] ? page_counter_cancel+0x4d/0x60 [ 48.915904] ? drain_stock.isra.47+0x1cb/0x240 [ 48.920479] ? trace_hardirqs_on+0xd/0x10 [ 48.925226] ? refill_stock+0x126/0x1a0 [ 48.929292] ? kasan_check_read+0x11/0x20 [ 48.933456] ? try_charge+0x8fd/0x1680 [ 48.937338] xas_store+0xce/0x1720 [ 48.940885] ? xas_find_tagged+0x1440/0x1440 [ 48.945298] ? lock_acquire+0x1e4/0x540 [ 48.949277] ? shmem_add_to_page_cache+0x8b9/0x1450 [ 48.954286] ? xa_find_after+0x9a0/0x9a0 [ 48.958342] ? percpu_ref_put_many+0x119/0x240 [ 48.962919] ? lock_downgrade+0x8f0/0x8f0 [ 48.967060] ? xas_find_conflict+0x360/0x8d0 [ 48.971462] ? kasan_check_write+0x14/0x20 [ 48.975688] ? do_raw_spin_lock+0xc1/0x200 [ 48.979961] shmem_add_to_page_cache+0x98e/0x1450 [ 48.984812] ? shmem_write_end+0x9a0/0x9a0 [ 48.989044] ? mem_cgroup_try_charge+0x548/0xa70 [ 48.993816] ? mem_cgroup_protected+0xa60/0xa60 [ 48.998490] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 49.004035] ? shmem_alloc_and_acct_page+0x31a/0x820 [ 49.009134] ? shmem_getattr+0x2c0/0x2c0 [ 49.013200] ? dequeue_task_fair+0xa10/0xa10 [ 49.017606] ? rb_erase+0x3550/0x3550 [ 49.021402] shmem_getpage_gfp+0xaad/0x3ec0 [ 49.025719] ? check_preempt_curr+0x1ec/0x3a0 [ 49.030226] ? shmem_writepage+0x13a0/0x13a0 [ 49.034628] ? lock_release+0xa30/0xa30 [ 49.038597] ? update_curr+0x4c8/0xc00 [ 49.042482] ? lock_downgrade+0x8f0/0x8f0 [ 49.046628] ? trace_hardirqs_on+0x10/0x10 [ 49.050859] ? cpuacct_charge+0x30a/0x5d0 [ 49.055005] ? cgroup_rstat_updated+0xe6/0x470 [ 49.059580] ? migrate_swap_stop+0x850/0x850 [ 49.063991] ? trace_hardirqs_on+0x10/0x10 [ 49.068222] ? __account_cfs_rq_runtime+0x770/0x770 [ 49.073228] ? is_bpf_text_address+0xae/0x170 [ 49.077718] ? lock_downgrade+0x8f0/0x8f0 [ 49.081858] ? __account_cfs_rq_runtime+0x770/0x770 [ 49.086875] ? set_next_entity+0x2eb/0xc70 [ 49.091121] ? trace_hardirqs_on+0x10/0x10 [ 49.095368] ? active_load_balance_cpu_stop+0x1030/0x1030 [ 49.100937] ? trace_hardirqs_on+0x10/0x10 [ 49.105173] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 49.110204] ? bpf_prog_kallsyms_find+0xde/0x4c0 [ 49.114968] ? trace_hardirqs_on+0x10/0x10 [ 49.119198] ? lock_acquire+0x1e4/0x540 [ 49.123165] ? is_bpf_text_address+0xae/0x170 [ 49.127670] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 49.132772] ? bpf_prog_kallsyms_find+0xde/0x4c0 [ 49.137525] ? trace_hardirqs_on+0x10/0x10 [ 49.141756] ? lock_downgrade+0x8f0/0x8f0 [ 49.145907] ? trace_hardirqs_on+0x10/0x10 [ 49.150154] ? kasan_check_read+0x11/0x20 [ 49.154299] ? lock_acquire+0x1e4/0x540 [ 49.158264] ? simple_xattr_get+0x106/0x180 [ 49.162581] ? current_time+0x72/0x1b0 [ 49.166465] ? lock_downgrade+0x8f0/0x8f0 [ 49.170605] ? kasan_check_read+0x11/0x20 [ 49.174747] ? lock_release+0xa30/0xa30 [ 49.178718] ? kasan_check_write+0x14/0x20 [ 49.182946] ? do_raw_spin_lock+0xc1/0x200 [ 49.187262] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 49.192807] ? iov_iter_fault_in_readable+0x23d/0x460 [ 49.197992] ? copy_page_from_iter+0x890/0x890 [ 49.202567] ? __sanitizer_cov_trace_cmp4+0x10/0x20 [ 49.207576] ? ktime_get_coarse_real_ts64+0x243/0x3a0 [ 49.212778] shmem_write_begin+0x10a/0x1e0 [ 49.217025] generic_perform_write+0x3ae/0x6c0 [ 49.221608] ? add_page_wait_queue+0x2c0/0x2c0 [ 49.226184] ? file_update_time+0xe4/0x640 [ 49.230412] ? current_time+0x1b0/0x1b0 [ 49.234475] ? down_write+0x8f/0x130 [ 49.238199] __generic_file_write_iter+0x26e/0x630 [ 49.243124] ? timespec64_trunc+0xea/0x180 [ 49.247363] generic_file_write_iter+0x438/0x870 [ 49.252117] ? __generic_file_write_iter+0x630/0x630 [ 49.257304] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 49.262932] ? iov_iter_init+0xc9/0x1f0 [ 49.266915] __vfs_write+0x6c6/0x9f0 [ 49.270626] ? kernel_read+0x120/0x120 [ 49.274510] ? lock_release+0xa30/0xa30 [ 49.278490] ? check_same_owner+0x340/0x340 [ 49.283261] ? __fget_light+0x2f7/0x440 [ 49.287230] ? fget_raw+0x20/0x20 [ 49.290702] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 49.296268] ? __sb_start_write+0x17f/0x300 [ 49.300944] vfs_write+0x1fc/0x560 [ 49.304490] ksys_pwrite64+0x181/0x1b0 [ 49.308388] ? __ia32_sys_pread64+0xf0/0xf0 [ 49.312703] ? __sb_end_write+0xac/0xe0 [ 49.316693] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 49.322229] ? do_sys_ftruncate+0x44e/0x560 [ 49.326636] __x64_sys_pwrite64+0x97/0xf0 [ 49.330785] do_syscall_64+0x1b9/0x820 [ 49.335279] ? syscall_return_slowpath+0x5e0/0x5e0 [ 49.340213] ? syscall_return_slowpath+0x31d/0x5e0 [ 49.345230] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 49.350242] ? prepare_exit_to_usermode+0x291/0x3b0 [ 49.355251] ? perf_trace_sys_enter+0xb10/0xb10 [ 49.359917] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 49.364764] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 49.369946] RIP: 0033:0x401d43 [ 49.373125] Code: ff 0f 83 70 0a 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 83 3d 8d 69 2d 00 00 75 17 49 89 ca b8 12 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 41 0a 00 00 c3 48 83 ec 08 e8 f7 00 00 00 [ 49.392396] RSP: 002b:00007fff17a0fb78 EFLAGS: 00000246 ORIG_RAX: 0000000000000012 [ 49.400098] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 0000000000401d43 executing program [ 49.407359] RDX: 000000000000003d RSI: 0000000020000240 RDI: 0000000000000005 [ 49.414619] RBP: 0000000000020000 R08: 0000000000000001 R09: 0000000000000000 [ 49.421899] R10: 0000000000010000 R11: 0000000000000246 R12: ffffffffffffffff [ 49.429246] R13: 0000000000000004 R14: 0000000000000000 R15: 0000000000000000 [ 49.443766] FAULT_INJECTION: forcing a failure. [ 49.443766] name failslab, interval 1, probability 0, space 0, times 0 [ 49.455036] CPU: 1 PID: 4493 Comm: syz-executor348 Not tainted 4.18.0-rc3-next-20180706+ #1 [ 49.463512] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 49.472852] Call Trace: [ 49.475436] dump_stack+0x1c9/0x2b4 [ 49.479062] ? dump_stack_print_info.cold.2+0x52/0x52 [ 49.484248] ? vprintk_func+0x81/0xe7 [ 49.488045] should_fail.cold.4+0xa/0x11 [ 49.492190] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 49.497288] ? up_write+0x7b/0x220 [ 49.500821] ? up_read+0x110/0x110 [ 49.504360] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 49.509891] ? __generic_file_write_iter+0x1bd/0x630 [ 49.514987] ? timespec64_trunc+0xea/0x180 [ 49.519219] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 49.524752] ? generic_file_write_iter+0x4a3/0x870 [ 49.529678] ? lock_acquire+0x1e4/0x540 [ 49.533644] ? fs_reclaim_acquire+0x20/0x20 [ 49.537960] ? lock_downgrade+0x8f0/0x8f0 [ 49.542108] ? check_same_owner+0x340/0x340 [ 49.546424] ? fsnotify+0xbac/0x14e0 [ 49.550131] ? rcu_note_context_switch+0x730/0x730 [ 49.555056] ? lock_downgrade+0x8f0/0x8f0 [ 49.559204] __should_failslab+0x124/0x180 [ 49.563435] should_failslab+0x9/0x14 [ 49.567230] kmem_cache_alloc+0x2af/0x760 [ 49.571376] getname_flags+0xd0/0x5a0 [ 49.575182] getname+0x19/0x20 [ 49.578368] do_sys_open+0x3a2/0x720 [ 49.582078] ? filp_open+0x80/0x80 [ 49.585613] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 49.591246] ? do_sys_ftruncate+0x44e/0x560 [ 49.595561] __x64_sys_open+0x7e/0xc0 [ 49.599359] do_syscall_64+0x1b9/0x820 [ 49.603241] ? syscall_slow_exit_work+0x500/0x500 [ 49.608078] ? syscall_return_slowpath+0x5e0/0x5e0 [ 49.613003] ? syscall_return_slowpath+0x31d/0x5e0 [ 49.617930] ? prepare_exit_to_usermode+0x291/0x3b0 [ 49.622938] ? perf_trace_sys_enter+0xb10/0xb10 [ 49.627615] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 49.632471] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 49.637650] RIP: 0033:0x401ce0 [ 49.640847] Code: 01 f0 ff ff 0f 83 d0 0a 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 83 3d ed 69 2d 00 00 75 14 b8 02 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 a4 0a 00 00 c3 48 83 ec 08 e8 5a 01 00 00 [ 49.660099] RSP: 002b:00007fff17a0fb78 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 [ 49.667800] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 0000000000401ce0 [ 49.675065] RDX: 00007fff17a0fcda RSI: 0000000000000002 RDI: 00007fff17a0fcd0 [ 49.682325] RBP: 0000000000020000 R08: 0000000000000000 R09: 000000000000000a [ 49.689600] R10: 0000000000000075 R11: 0000000000000246 R12: ffffffffffffffff [ 49.696876] R13: 0000000000000004 R14: 0000000000000000 R15: 0000000000000000 [ 49.705386] page:ffffea0007055e00 count:2 mapcount:0 mapping:ffff8801a8cd79f8 index:0x25 [ 49.713991] flags: 0x2fffc0000010028(uptodate|lru|mappedtodisk) [ 49.720069] raw: 02fffc0000010028 ffffea0006ff5a88 ffffea0007022608 ffff8801a8cd79f8 [ 49.728142] raw: 0000000000000025 0000000000000000 00000002ffffffff ffff8801d9a44c80 [ 49.736023] page dumped because: VM_BUG_ON_PAGE(page_to_pgoff(page) != index) [ 49.743476] page->mem_cgroup:ffff8801d9a44c80 [ 49.748063] ------------[ cut here ]------------ [ 49.752806] kernel BUG at mm/shmem.c:815! [ 49.756974] invalid opcode: 0000 [#1] SMP KASAN [ 49.761639] CPU: 1 PID: 4480 Comm: syz-executor348 Not tainted 4.18.0-rc3-next-20180706+ #1 [ 49.770206] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 49.779567] RIP: 0010:shmem_undo_range+0xdaa/0x29a0 [ 49.784567] Code: 00 0f 85 bd 19 00 00 48 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 a5 f0 d6 ff 48 c7 c6 e0 32 f1 87 4c 89 e7 e8 16 10 05 00 <0f> 0b e8 8f f0 d6 ff 49 8d 7c 24 20 48 89 f8 48 c1 e8 03 80 3c 18 [ 49.803826] RSP: 0018:ffff8801d8c16158 EFLAGS: 00010246 [ 49.809184] RAX: 0000000000000000 RBX: dffffc0000000000 RCX: 0000000000000000 [ 49.816443] RDX: 0000000000000000 RSI: ffffffff81aaab95 RDI: ffffed003b182c18 [ 49.823723] RBP: ffff8801d8c168d0 R08: ffff8801a92942c0 R09: fffffbfff11f1260 [ 49.830985] R10: fffffbfff11f1260 R11: ffffffff88f89303 R12: ffffea0007055e00 [ 49.838265] R13: ffff8801d8c168a8 R14: 0000000000000000 R15: 0000000000000025 [ 49.845532] FS: 0000000000000000(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000 [ 49.854181] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 49.860053] CR2: 00000000004ba3fc CR3: 0000000008e6a000 CR4: 00000000001406e0 [ 49.867316] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 49.874575] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 49.881833] Call Trace: [ 49.884424] ? trace_hardirqs_on+0x10/0x10 [ 49.888918] ? shmem_get_link+0x690/0x690 [ 49.893063] ? lock_release+0xa30/0xa30 [ 49.897039] ? free_unref_page_commit.isra.87+0x610/0x610 [ 49.902583] ? __mem_cgroup_threshold+0x240/0x740 [ 49.907423] ? trace_hardirqs_on+0x10/0x10 [ 49.911650] ? lock_downgrade+0x8f0/0x8f0 [ 49.915793] ? memcg_check_events+0x179/0x5f0 [ 49.920282] ? trace_hardirqs_on+0x10/0x10 [ 49.924599] ? start_stop_khugepaged.cold.50+0x46/0x46 [ 49.929884] ? lock_acquire+0x1e4/0x540 [ 49.933870] ? debug_check_no_obj_freed+0x30b/0x595 [ 49.938880] ? lock_downgrade+0x8f0/0x8f0 [ 49.943121] ? kasan_check_read+0x11/0x20 [ 49.947262] ? do_raw_spin_unlock+0xa7/0x2f0 [ 49.951748] ? do_raw_spin_trylock+0x1c0/0x1c0 [ 49.956325] ? kasan_check_write+0x14/0x20 [ 49.960562] ? do_raw_spin_lock+0xc1/0x200 [ 49.965157] ? trace_hardirqs_on+0xd/0x10 [ 49.969313] ? free_unref_page_commit.isra.87+0x1ac/0x610 [ 49.975104] ? drain_local_pages_wq+0x20/0x20 [ 49.979596] ? free_obj_work+0xbb0/0xbb0 [ 49.983652] ? lock_acquire+0x1e4/0x540 [ 49.987621] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 49.993152] ? kernel_poison_pages+0x136/0x220 [ 49.997727] ? trace_hardirqs_on+0xd/0x10 [ 50.001873] ? trace_hardirqs_on+0x10/0x10 [ 50.006101] ? trace_hardirqs_on+0x10/0x10 [ 50.010330] ? __page_frag_cache_drain+0x1f0/0x1f0 [ 50.015255] ? percpu_ref_put_many+0x131/0x240 [ 50.019831] ? do_raw_spin_unlock+0xa7/0x2f0 [ 50.024316] ? mem_cgroup_id_get_online+0x310/0x310 [ 50.029330] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 50.034863] ? trace_hardirqs_on+0x10/0x10 [ 50.039092] ? trace_hardirqs_on+0x10/0x10 [ 50.043326] shmem_truncate_range+0x27/0xa0 [ 50.047656] shmem_evict_inode+0x3b2/0xcb0 [ 50.051901] ? trace_hardirqs_on+0x10/0x10 [ 50.056139] ? do_raw_spin_lock+0xc1/0x200 [ 50.060405] ? shmem_truncate_range+0xa0/0xa0 [ 50.064900] ? trace_hardirqs_on+0x10/0x10 [ 50.069129] ? release_pages+0x7cf/0x14e0 [ 50.073298] ? lock_acquire+0x1e4/0x540 [ 50.077269] ? inode_wait_for_writeback+0x2f/0x40 [ 50.082107] ? lock_downgrade+0x8f0/0x8f0 [ 50.086247] ? evict+0x468/0x990 [ 50.089617] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 50.095152] ? __inode_wait_for_writeback+0x2cf/0x380 [ 50.100879] ? kasan_check_read+0x11/0x20 [ 50.105021] ? do_raw_spin_unlock+0xa7/0x2f0 [ 50.109425] ? do_raw_spin_trylock+0x1c0/0x1c0 [ 50.114003] ? kasan_check_write+0x14/0x20 [ 50.118242] ? do_raw_spin_lock+0xc1/0x200 [ 50.122477] ? shmem_truncate_range+0xa0/0xa0 [ 50.126967] evict+0x4ae/0x990 [ 50.130158] ? destroy_inode+0x200/0x200 [ 50.134214] ? do_raw_spin_lock+0xc1/0x200 [ 50.138446] ? lock_downgrade+0x8f0/0x8f0 [ 50.142589] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 50.148123] ? kasan_check_read+0x11/0x20 [ 50.152352] ? do_raw_spin_trylock+0x1c0/0x1c0 [ 50.156934] iput+0x635/0xaa0 [ 50.160036] ? fsnotify_final_mark_destroy+0xc0/0xc0 [ 50.165154] ? inode_add_lru+0x2a0/0x2a0 [ 50.169213] ? fsnotify_destroy_marks+0x2e7/0x5c0 [ 50.174048] ? kasan_check_read+0x11/0x20 [ 50.178187] ? do_raw_spin_unlock+0xa7/0x2f0 [ 50.182600] ? fsnotify_clear_marks_by_group+0x640/0x640 [ 50.188050] ? debug_object_active_state+0x2f5/0x4d0 [ 50.193153] dentry_unlink_inode+0x4ae/0x640 [ 50.197554] ? kasan_check_read+0x11/0x20 [ 50.201701] ? d_lru_add+0x120/0x120 [ 50.205419] ? kasan_check_write+0x14/0x20 [ 50.209660] ? do_raw_spin_lock+0xc1/0x200 [ 50.213901] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 50.219432] ? lockref_mark_dead+0xef/0x170 [ 50.223761] ? lockref_get_not_dead+0x90/0x90 [ 50.228252] ? lock_acquire+0x1e4/0x540 [ 50.232221] __dentry_kill+0x44c/0x7a0 [ 50.236101] ? d_drop+0x70/0x70 [ 50.239379] ? do_raw_spin_lock+0x200/0x200 [ 50.243697] ? lock_release+0xa30/0xa30 [ 50.247682] ? check_same_owner+0x340/0x340 [ 50.252003] dentry_kill+0xc9/0x5a0 [ 50.255626] dput.part.26+0x66b/0x7a0 [ 50.259420] ? shrink_dcache_sb+0x350/0x350 [ 50.263736] ? rcu_note_context_switch+0x730/0x730 [ 50.268657] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 50.273674] dput+0x15/0x20 [ 50.276621] __fput+0x558/0x930 [ 50.279898] ? fput+0x1a0/0x1a0 [ 50.283170] ? check_same_owner+0x340/0x340 [ 50.287490] ? kasan_check_write+0x14/0x20 [ 50.291729] ? do_raw_spin_lock+0xc1/0x200 [ 50.295971] ____fput+0x15/0x20 [ 50.299245] task_work_run+0x1ec/0x2a0 [ 50.303130] ? task_work_cancel+0x250/0x250 [ 50.307451] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 50.312980] ? switch_task_namespaces+0xa2/0xd0 [ 50.317643] do_exit+0x1b08/0x2750 [ 50.321188] ? mm_update_next_owner+0x9a0/0x9a0 [ 50.325849] ? lock_acquire+0x1e4/0x540 [ 50.329817] ? __schedule+0x1ed0/0x1ed0 [ 50.333786] ? lock_downgrade+0x8f0/0x8f0 [ 50.337934] ? lock_acquire+0x1e4/0x540 [ 50.341901] ? wait_for_completion_killable+0x5a7/0x9a0 [ 50.347257] ? lock_downgrade+0x8f0/0x8f0 [ 50.351404] ? kasan_check_read+0x11/0x20 [ 50.355543] ? do_raw_spin_unlock+0xa7/0x2f0 [ 50.359956] ? do_raw_spin_trylock+0x1c0/0x1c0 [ 50.364532] ? kasan_check_write+0x14/0x20 [ 50.368758] ? do_raw_spin_lock+0xc1/0x200 [ 50.373001] ? trace_hardirqs_on+0x10/0x10 [ 50.377230] ? trace_hardirqs_on+0xd/0x10 [ 50.381369] ? _raw_spin_unlock_irq+0x27/0x70 [ 50.385859] ? wait_for_completion_killable+0x5a7/0x9a0 [ 50.391219] ? wait_for_completion_interruptible_timeout+0x9a0/0x9a0 [ 50.397717] ? lock_downgrade+0x8f0/0x8f0 [ 50.401861] ? wake_up_q+0x100/0x100 [ 50.405571] ? kasan_check_read+0x11/0x20 [ 50.409713] ? lo_ioctl+0x1dc/0x1d00 [ 50.413438] ? kasan_check_write+0x14/0x20 [ 50.417666] ? do_raw_spin_lock+0xc1/0x200 [ 50.421898] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 50.427426] ? __kthread_create_on_node+0x34f/0x4c0 [ 50.432435] ? cpu_load_update_nohz_stop+0x70/0x2d0 [ 50.437450] ? kasan_check_write+0x14/0x20 [ 50.441682] ? __mutex_unlock_slowpath+0x197/0x8c0 [ 50.446604] ? memset+0x31/0x40 [ 50.449879] ? __dequeue_signal+0xf9/0x7d0 [ 50.454108] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 50.459635] ? recalc_sigpending_tsk+0x140/0x180 [ 50.464391] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 50.469920] ? recalc_sigpending_tsk+0x180/0x180 [ 50.474674] ? get_signal+0x918/0x1970 [ 50.478555] ? lock_downgrade+0x8f0/0x8f0 [ 50.482701] do_group_exit+0x177/0x440 [ 50.486583] ? do_raw_spin_trylock+0x1c0/0x1c0 [ 50.491155] ? __ia32_sys_exit+0x50/0x50 [ 50.495219] ? kasan_check_write+0x14/0x20 [ 50.499469] ? do_raw_spin_lock+0xc1/0x200 [ 50.503702] get_signal+0x88e/0x1970 [ 50.507413] ? ptrace_notify+0x130/0x130 [ 50.511469] ? save_stack+0xa9/0xd0 [ 50.515102] ? save_stack+0x43/0xd0 [ 50.518737] ? __kasan_slab_free+0x11a/0x170 [ 50.523134] ? kasan_slab_free+0xe/0x10 [ 50.527100] ? kmem_cache_free+0x86/0x2d0 [ 50.531238] ? putname+0xf2/0x130 [ 50.534691] ? do_sys_open+0x569/0x720 [ 50.538568] ? __x64_sys_open+0x7e/0xc0 [ 50.542536] ? do_syscall_64+0x1b9/0x820 [ 50.546588] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 50.551945] ? kasan_check_read+0x11/0x20 [ 50.556090] do_signal+0x9c/0x21c0 [ 50.559622] ? kasan_check_write+0x14/0x20 [ 50.563853] ? do_raw_spin_lock+0xc1/0x200 [ 50.568084] ? setup_sigcontext+0x7d0/0x7d0 [ 50.572398] ? blkdev_fallocate+0x400/0x400 [ 50.577149] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 50.582687] ? do_vfs_ioctl+0x201/0x1720 [ 50.586743] ? ioctl_preallocate+0x300/0x300 [ 50.591233] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 50.596762] ? __fget_light+0x2f7/0x440 [ 50.600738] ? putname+0xf7/0x130 [ 50.604186] ? do_sys_open+0x3cb/0x720 [ 50.608068] exit_to_usermode_loop+0x2e0/0x370 [ 50.612652] ? syscall_slow_exit_work+0x500/0x500 [ 50.617488] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 50.623016] ? ksys_ioctl+0x81/0xd0 [ 50.626646] do_syscall_64+0x6be/0x820 [ 50.630530] ? syscall_return_slowpath+0x5e0/0x5e0 [ 50.635453] ? syscall_return_slowpath+0x31d/0x5e0 [ 50.640376] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 50.645388] ? prepare_exit_to_usermode+0x291/0x3b0 [ 50.650740] ? perf_trace_sys_enter+0xb10/0xb10 [ 50.655418] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 50.660254] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 50.665438] RIP: 0033:0x445ac7 [ 50.668615] Code: Bad RIP value. [ 50.671997] RSP: 002b:00007fff17a0fb78 EFLAGS: 00000213 ORIG_RAX: 0000000000000010 [ 50.679701] RAX: fffffffffffffff4 RBX: 0000000000000005 RCX: 0000000000445ac7 [ 50.686961] RDX: 0000000000000005 RSI: 0000000000004c00 RDI: 0000000000000006 [ 50.694219] RBP: 0000000000000006 R08: 0000000000000000 R09: 000000000000000a [ 50.701479] R10: 0000000000000075 R11: 0000000000000213 R12: ffffffffffffffff [ 50.708739] R13: 0000000000000004 R14: 0000000000000000 R15: 0000000000000000 [ 50.716001] Modules linked in: [ 50.719189] Dumping ftrace buffer: [ 50.722715] (ftrace buffer empty) [ 50.726580] ---[ end trace 5f0bd532e5940860 ]--- [ 50.731471] RIP: 0010:shmem_undo_range+0xdaa/0x29a0 [ 50.736504] Code: 00 0f 85 bd 19 00 00 48 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 a5 f0 d6 ff 48 c7 c6 e0 32 f1 87 4c 89 e7 e8 16 10 05 00 <0f> 0b e8 8f f0 d6 ff 49 8d 7c 24 20 48 89 f8 48 c1 e8 03 80 3c 18 [ 50.755787] RSP: 0018:ffff8801d8c16158 EFLAGS: 00010246 [ 50.761164] RAX: 0000000000000000 RBX: dffffc0000000000 RCX: 0000000000000000 [ 50.768444] RDX: 0000000000000000 RSI: ffffffff81aaab95 RDI: ffffed003b182c18 [ 50.775812] RBP: ffff8801d8c168d0 R08: ffff8801a92942c0 R09: fffffbfff11f1260 [ 50.783450] R10: fffffbfff11f1260 R11: ffffffff88f89303 R12: ffffea0007055e00 [ 50.790750] R13: ffff8801d8c168a8 R14: 0000000000000000 R15: 0000000000000025 [ 50.798296] FS: 0000000000000000(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000 [ 50.806968] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 50.812859] CR2: 0000000000445a9d CR3: 0000000008e6a000 CR4: 00000000001406e0 [ 50.820143] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 50.827424] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 50.834876] Kernel panic - not syncing: Fatal exception [ 50.840710] Dumping ftrace buffer: [ 50.844238] (ftrace buffer empty) [ 50.847936] Kernel Offset: disabled [ 50.851542] Rebooting in 86400 seconds..