[....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[ 14.523065] random: sshd: uninitialized urandom read (32 bytes read) [?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 15.679335] random: sshd: uninitialized urandom read (32 bytes read) [ 15.827269] random: sshd: uninitialized urandom read (32 bytes read) [ 16.540690] random: sshd: uninitialized urandom read (32 bytes read) [ 154.101649] random: sshd: uninitialized urandom read (32 bytes read) Warning: Permanently added '10.128.0.7' (ECDSA) to the list of known hosts. [ 159.571533] random: sshd: uninitialized urandom read (32 bytes read) 2018/07/23 10:49:03 parsed 1 programs [ 160.617855] random: cc1: uninitialized urandom read (8 bytes read) 2018/07/23 10:49:04 executed programs: 0 [ 161.456365] IPVS: ftp: loaded support on port[0] = 21 [ 161.457610] IPVS: ftp: loaded support on port[0] = 21 [ 161.478643] IPVS: ftp: loaded support on port[0] = 21 [ 161.494897] IPVS: ftp: loaded support on port[0] = 21 [ 161.504357] IPVS: ftp: loaded support on port[0] = 21 [ 161.506152] IPVS: ftp: loaded support on port[0] = 21 [ 161.512643] IPVS: ftp: loaded support on port[0] = 21 [ 161.517107] IPVS: ftp: loaded support on port[0] = 21 [ 161.710915] x86/PAT: syz-executor3:4521 map pfn RAM range req write-combining for [mem 0x1b4640000-0x1b4643fff], got write-back [ 161.730766] x86/PAT: syz-executor0:4525 map pfn RAM range req write-combining for [mem 0x1bff90000-0x1bff93fff], got write-back [ 161.756249] FAULT_INJECTION: forcing a failure. [ 161.756249] name failslab, interval 1, probability 0, space 0, times 1 [ 161.767489] CPU: 0 PID: 4521 Comm: syz-executor3 Not tainted 4.18.0-rc5-next-20180720+ #12 [ 161.775864] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 161.785188] Call Trace: [ 161.787754] dump_stack+0x1c9/0x2b4 [ 161.790464] FAULT_INJECTION: forcing a failure. [ 161.790464] name fail_page_alloc, interval 1, probability 0, space 0, times 1 [ 161.791359] ? dump_stack_print_info.cold.2+0x52/0x52 [ 161.791369] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 161.791385] should_fail.cold.4+0xa/0x11 [ 161.817330] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 161.822411] ? lock_release+0xa30/0xa30 [ 161.826365] ? kasan_check_read+0x11/0x20 [ 161.830490] ? rcu_is_watching+0x8c/0x150 [ 161.834615] ? rcu_cleanup_dead_rnp+0x200/0x200 [ 161.839260] ? is_bpf_text_address+0xd7/0x170 [ 161.843733] ? kernel_text_address+0x79/0xf0 [ 161.848117] ? __kernel_text_address+0xd/0x40 [ 161.852589] ? unwind_get_return_address+0x61/0xa0 [ 161.857495] ? __save_stack_trace+0x8d/0xf0 [ 161.861793] ? save_stack+0xa9/0xd0 [ 161.865393] ? save_stack+0x43/0xd0 [ 161.868997] ? kasan_kmalloc+0xc4/0xe0 [ 161.872863] __should_failslab+0x124/0x180 [ 161.877074] should_failslab+0x9/0x14 [ 161.880851] kmem_cache_alloc+0x47/0x760 [ 161.884890] ? lock_acquire+0x1e4/0x540 [ 161.888841] ? percpu_ref_put_many+0x119/0x240 [ 161.893410] ? lock_downgrade+0x8f0/0x8f0 [ 161.897535] anon_vma_clone+0x140/0x740 [ 161.901498] ? fs_reclaim_acquire+0x20/0x20 [ 161.905795] ? unlink_anon_vmas+0xa60/0xa60 [ 161.910093] ? dup_userfaultfd+0x775/0x9a0 [ 161.914304] anon_vma_fork+0xf0/0x960 [ 161.918093] ? kasan_unpoison_shadow+0x35/0x50 [ 161.922652] ? anon_vma_clone+0x740/0x740 [ 161.926774] ? kasan_slab_alloc+0x12/0x20 [ 161.930900] ? kmem_cache_alloc+0x2fc/0x760 [ 161.935203] copy_process.part.41+0x6705/0x73d0 [ 161.939854] ? __cleanup_sighand+0x70/0x70 [ 161.944065] ? lock_release+0xa30/0xa30 [ 161.948016] ? retint_kernel+0x10/0x10 [ 161.951886] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 161.956880] ? check_pgprot+0xdf/0x180 [ 161.960744] ? put_page+0x280/0x280 [ 161.964349] ? kasan_check_write+0x14/0x20 [ 161.968562] ? do_raw_spin_lock+0xc1/0x200 [ 161.972775] ? alloc_set_pte+0xaf6/0x1790 [ 161.976905] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 161.981897] ? filemap_map_pages+0xca2/0x1990 [ 161.986369] ? lock_downgrade+0x8f0/0x8f0 [ 161.990503] ? xa_set_tag+0x40/0x40 [ 161.994106] ? do_raw_spin_trylock+0x1c0/0x1c0 [ 161.998665] ? kasan_check_write+0x14/0x20 [ 162.002875] ? do_raw_spin_lock+0xc1/0x200 [ 162.007087] ? trace_hardirqs_on+0x10/0x10 [ 162.011295] ? filemap_map_pages+0xccb/0x1990 [ 162.015771] ? find_get_entries_tag+0x1410/0x1410 [ 162.020595] ? kasan_check_read+0x11/0x20 [ 162.024718] ? do_raw_spin_unlock+0xa7/0x2f0 [ 162.029103] ? do_raw_spin_trylock+0x1c0/0x1c0 [ 162.033661] ? __pte_alloc_kernel+0x2e0/0x2e0 [ 162.038150] ? shrink_dcache_sb+0x350/0x350 [ 162.042447] ? chown_common+0x730/0x730 [ 162.046400] ? do_wp_page+0x435/0x1670 [ 162.050269] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 162.055781] ? _parse_integer+0x13b/0x190 [ 162.059907] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 162.065420] ? _kstrtoull+0x188/0x250 [ 162.069196] ? _parse_integer+0x190/0x190 [ 162.073323] ? lock_release+0xa30/0xa30 [ 162.077275] ? check_same_owner+0x340/0x340 [ 162.081572] ? __check_object_size+0xa3/0x5d7 [ 162.086044] ? lock_acquire+0x1e4/0x540 [ 162.089996] ? get_pid_task+0xd8/0x1a0 [ 162.093864] ? lock_downgrade+0x8f0/0x8f0 [ 162.097987] ? lock_release+0xa30/0xa30 [ 162.101939] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 162.107453] ? pid_task+0x115/0x200 [ 162.111055] ? find_vpid+0xf0/0xf0 [ 162.114573] ? vmf_insert_mixed_mkwrite+0xa0/0xa0 [ 162.119407] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 162.124922] ? proc_fail_nth_write+0x9e/0x210 [ 162.129393] ? proc_cwd_link+0x1d0/0x1d0 [ 162.133432] ? lock_acquire+0x1e4/0x540 [ 162.137385] ? handle_mm_fault+0x417/0xc80 [ 162.141597] _do_fork+0x291/0x12a0 [ 162.145123] ? fork_idle+0x1a0/0x1a0 [ 162.148815] ? fsnotify_first_mark+0x350/0x350 [ 162.153371] ? __fsnotify_parent+0xcc/0x420 [ 162.157669] ? fsnotify+0x14e0/0x14e0 [ 162.161449] ? __sb_end_write+0xac/0xe0 [ 162.165409] ? vfs_write+0x2ad/0x560 [ 162.169101] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 162.174615] ? ksys_write+0x1ae/0x260 [ 162.178393] ? __ia32_sys_read+0xb0/0xb0 [ 162.182441] __x64_sys_clone+0xbf/0x150 [ 162.186403] do_syscall_64+0x1b9/0x820 [ 162.190278] ? syscall_return_slowpath+0x5e0/0x5e0 [ 162.195194] ? syscall_return_slowpath+0x31d/0x5e0 [ 162.200099] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 162.205097] ? prepare_exit_to_usermode+0x291/0x3b0 [ 162.210107] ? perf_trace_sys_enter+0xb10/0xb10 [ 162.214757] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 162.219589] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 162.224755] RIP: 0033:0x455ab9 [ 162.227919] Code: 1d ba 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 eb b9 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 162.247030] RSP: 002b:00007ffece7170e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 [ 162.254714] RAX: ffffffffffffffda RBX: 00000000023c4914 RCX: 0000000000455ab9 [ 162.261969] RDX: 00000000200000c0 RSI: 0000000020000080 RDI: 0000000000000000 [ 162.269223] RBP: 000000000072bea0 R08: 0000000020000180 R09: 0000000000000000 [ 162.276482] R10: 0000000020000040 R11: 0000000000000246 R12: 0000000000000008 [ 162.283737] R13: 00000000004bb85d R14: 00000000004c8d28 R15: 0000000000000037 [ 162.290998] CPU: 1 PID: 4525 Comm: syz-executor0 Not tainted 4.18.0-rc5-next-20180720+ #12 [ 162.299416] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 162.308758] Call Trace: [ 162.310060] x86/PAT: syz-executor3:4521 map pfn RAM range req write-combining for [mem 0x1c5680000-0x1c5680fff], got write-back [ 162.311335] dump_stack+0x1c9/0x2b4 [ 162.311349] ? dump_stack_print_info.cold.2+0x52/0x52 [ 162.331725] ? is_bpf_text_address+0xae/0x170 [ 162.333137] x86/PAT: syz-executor1:4552 map pfn RAM range req write-combining for [mem 0x1ba0a0000-0x1ba0a3fff], got write-back [ 162.336199] ? lock_downgrade+0x8f0/0x8f0 [ 162.336209] should_fail.cold.4+0xa/0x11 [ 162.336221] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 162.361032] ? rcu_cleanup_dead_rnp+0x200/0x200 [ 162.365687] ? percpu_ref_tryget_live+0x15b/0x440 [ 162.366816] x86/PAT: syz-executor7:4554 map pfn RAM range req write-combining for [mem 0x1ba0e0000-0x1ba0e3fff], got write-back [ 162.370507] ? is_bpf_text_address+0xd7/0x170 [ 162.370517] ? trace_hardirqs_on+0x10/0x10 [ 162.370530] ? trace_hardirqs_on+0x10/0x10 [ 162.388400] x86/PAT: syz-executor3:4556 map pfn RAM range req write-combining for [mem 0x1ba240000-0x1ba243fff], got write-back [ 162.390791] ? lock_acquire+0x1e4/0x540 [ 162.390799] ? fs_reclaim_acquire+0x20/0x20 [ 162.390806] ? lock_downgrade+0x8f0/0x8f0 [ 162.390818] ? check_same_owner+0x340/0x340 [ 162.405513] x86/PAT: syz-executor5:4557 map pfn RAM range req write-combining for [mem 0x1ba350000-0x1ba353fff], got write-back [ 162.406636] ? __pte_alloc+0x2a/0x3c0 [ 162.406643] ? copy_page_range+0x1670/0x24c0 [ 162.406650] ? rcu_note_context_switch+0x730/0x730 [ 162.406659] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 162.406670] __alloc_pages_nodemask+0x36e/0xdb0 [ 162.411439] FAULT_INJECTION: forcing a failure. [ 162.411439] name failslab, interval 1, probability 0, space 0, times 0 [ 162.414920] ? __alloc_pages_slowpath+0x2d00/0x2d00 [ 162.414926] ? fs_reclaim_acquire+0x20/0x20 [ 162.414934] ? lock_downgrade+0x8f0/0x8f0 [ 162.414942] ? lock_release+0xa30/0xa30 [ 162.414952] ? check_same_owner+0x340/0x340 [ 162.490788] ? lock_acquire+0x1e4/0x540 [ 162.494748] ? lock_acquire+0x1e4/0x540 [ 162.498700] ? copy_page_range+0x159a/0x24c0 [ 162.503086] ? lock_downgrade+0x8f0/0x8f0 [ 162.507222] ? __sanitizer_cov_trace_const_cmp2+0x18/0x20 [ 162.512737] alloc_pages_current+0x10c/0x210 [ 162.517126] pte_alloc_one+0x1b/0x1a0 [ 162.520903] __pte_alloc+0x2a/0x3c0 [ 162.524507] copy_page_range+0x1670/0x24c0 [ 162.528719] ? kernel_text_address+0x79/0xf0 [ 162.533111] ? __pmd_alloc+0x530/0x530 [ 162.536973] ? _do_fork+0x291/0x12a0 [ 162.540662] ? do_syscall_64+0x1b9/0x820 [ 162.544700] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 162.550040] ? lock_acquire+0x1e4/0x540 [ 162.553991] ? percpu_ref_put_many+0x119/0x240 [ 162.558547] ? lock_downgrade+0x8f0/0x8f0 [ 162.562680] ? lock_release+0xa30/0xa30 [ 162.566642] ? memcg_kmem_get_cache+0x3a9/0x9d0 [ 162.571299] ? anon_vma_fork+0x651/0x960 [ 162.575347] ? lock_downgrade+0x8f0/0x8f0 [ 162.579470] ? lock_release+0xa30/0xa30 [ 162.583419] ? check_same_owner+0x340/0x340 [ 162.587728] ? percpu_ref_put_many+0x131/0x240 [ 162.592283] ? rcu_note_context_switch+0x730/0x730 [ 162.597200] ? up_write+0x7b/0x220 [ 162.600715] ? up_read+0x110/0x110 [ 162.604233] ? anon_vma_interval_tree_insert+0x26b/0x300 [ 162.609664] ? anon_vma_clone+0x740/0x740 [ 162.613790] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 162.618781] ? __vma_link_rb+0x2a4/0x3f0 [ 162.622818] copy_process.part.41+0x5ead/0x73d0 [ 162.627554] ? __cleanup_sighand+0x70/0x70 [ 162.631764] ? lock_release+0xa30/0xa30 [ 162.635713] ? xas_descend+0x20c/0x5f0 [ 162.639575] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 162.644577] ? check_pgprot+0xdf/0x180 [ 162.648454] ? put_page+0x280/0x280 [ 162.652061] ? kasan_check_write+0x14/0x20 [ 162.656270] ? do_raw_spin_lock+0xc1/0x200 [ 162.660493] ? alloc_set_pte+0xaf6/0x1790 [ 162.664618] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 162.669610] ? filemap_map_pages+0xca2/0x1990 [ 162.674080] ? lock_downgrade+0x8f0/0x8f0 [ 162.678204] ? xa_set_tag+0x40/0x40 [ 162.681806] ? do_raw_spin_trylock+0x1c0/0x1c0 [ 162.686367] ? kasan_check_write+0x14/0x20 [ 162.690575] ? do_raw_spin_lock+0xc1/0x200 [ 162.694796] ? trace_hardirqs_on+0x10/0x10 [ 162.699005] ? filemap_map_pages+0xccb/0x1990 [ 162.703489] ? find_get_entries_tag+0x1410/0x1410 [ 162.708313] ? kasan_check_read+0x11/0x20 [ 162.712435] ? do_raw_spin_unlock+0xa7/0x2f0 [ 162.716821] ? do_raw_spin_trylock+0x1c0/0x1c0 [ 162.721390] ? __pte_alloc_kernel+0x2e0/0x2e0 [ 162.725863] ? shrink_dcache_sb+0x350/0x350 [ 162.730161] ? chown_common+0x730/0x730 [ 162.734125] ? do_wp_page+0x435/0x1670 [ 162.738009] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 162.743533] ? _parse_integer+0x13b/0x190 [ 162.747659] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 162.753182] ? _kstrtoull+0x188/0x250 [ 162.756958] ? _parse_integer+0x190/0x190 [ 162.761082] ? lock_release+0xa30/0xa30 [ 162.765031] ? check_same_owner+0x340/0x340 [ 162.769328] ? __check_object_size+0xa3/0x5d7 [ 162.773811] ? lock_acquire+0x1e4/0x540 [ 162.777763] ? get_pid_task+0xd8/0x1a0 [ 162.781628] ? lock_downgrade+0x8f0/0x8f0 [ 162.785751] ? lock_release+0xa30/0xa30 [ 162.789701] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 162.795214] ? pid_task+0x115/0x200 [ 162.798819] ? find_vpid+0xf0/0xf0 [ 162.802338] ? vmf_insert_mixed_mkwrite+0xa0/0xa0 [ 162.807158] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 162.812673] ? proc_fail_nth_write+0x9e/0x210 [ 162.817146] ? proc_cwd_link+0x1d0/0x1d0 [ 162.821184] ? lock_acquire+0x1e4/0x540 [ 162.825140] ? handle_mm_fault+0x417/0xc80 [ 162.829366] _do_fork+0x291/0x12a0 [ 162.832887] ? fork_idle+0x1a0/0x1a0 [ 162.836589] ? fsnotify_first_mark+0x350/0x350 [ 162.841159] ? __fsnotify_parent+0xcc/0x420 [ 162.845467] ? fsnotify+0x14e0/0x14e0 [ 162.849246] ? __sb_end_write+0xac/0xe0 [ 162.853196] ? vfs_write+0x2ad/0x560 [ 162.856889] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 162.862401] ? ksys_write+0x1ae/0x260 [ 162.866176] ? __ia32_sys_read+0xb0/0xb0 [ 162.870227] __x64_sys_clone+0xbf/0x150 [ 162.874189] do_syscall_64+0x1b9/0x820 [ 162.878052] ? syscall_return_slowpath+0x5e0/0x5e0 [ 162.882959] ? syscall_return_slowpath+0x31d/0x5e0 [ 162.887880] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 162.892885] ? prepare_exit_to_usermode+0x291/0x3b0 [ 162.897888] ? perf_trace_sys_enter+0xb10/0xb10 [ 162.902537] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 162.907359] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 162.912538] RIP: 0033:0x455ab9 [ 162.915712] Code: 1d ba 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 eb b9 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 162.934824] RSP: 002b:00007ffdd193e648 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 [ 162.942508] RAX: ffffffffffffffda RBX: 0000000000b34914 RCX: 0000000000455ab9 [ 162.949753] RDX: 00000000200000c0 RSI: 0000000020000080 RDI: 0000000000000000 [ 162.957000] RBP: 000000000072bea0 R08: 0000000020000180 R09: 0000000000000000 [ 162.964258] R10: 0000000020000040 R11: 0000000000000246 R12: 0000000000000008 [ 162.971515] R13: 00000000004bb85d R14: 00000000004c8d28 R15: 0000000000000037 [ 162.978772] CPU: 0 PID: 4557 Comm: syz-executor5 Not tainted 4.18.0-rc5-next-20180720+ #12 [ 162.983387] x86/PAT: syz-executor2:4553 map pfn RAM range req write-combining for [mem 0x1baba0000-0x1baba3fff], got write-back [ 162.987183] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 162.987186] Call Trace: [ 162.987199] dump_stack+0x1c9/0x2b4 [ 162.987211] ? dump_stack_print_info.cold.2+0x52/0x52 [ 163.007453] x86/PAT: syz-executor4:4555 map pfn RAM range req write-combining for [mem 0x1ba820000-0x1ba823fff], got write-back [ 163.008133] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 163.008145] should_fail.cold.4+0xa/0x11 [ 163.008157] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 163.026646] FAULT_INJECTION: forcing a failure. [ 163.026646] name failslab, interval 1, probability 0, space 0, times 0 [ 163.031083] ? lock_release+0xa30/0xa30 [ 163.031101] ? kasan_check_read+0x11/0x20 [ 163.031114] ? rcu_is_watching+0x8c/0x150 [ 163.031131] ? rcu_cleanup_dead_rnp+0x200/0x200 [ 163.073242] ? is_bpf_text_address+0xd7/0x170 [ 163.077728] ? kernel_text_address+0x79/0xf0 [ 163.082125] ? __kernel_text_address+0xd/0x40 [ 163.086605] ? unwind_get_return_address+0x61/0xa0 [ 163.091520] ? __save_stack_trace+0x8d/0xf0 [ 163.095831] ? save_stack+0xa9/0xd0 [ 163.099441] ? save_stack+0x43/0xd0 [ 163.103050] ? kasan_kmalloc+0xc4/0xe0 [ 163.106927] __should_failslab+0x124/0x180 [ 163.111148] should_failslab+0x9/0x14 [ 163.114937] kmem_cache_alloc+0x47/0x760 [ 163.118983] ? lock_acquire+0x1e4/0x540 [ 163.123287] ? percpu_ref_put_many+0x119/0x240 [ 163.127860] ? lock_downgrade+0x8f0/0x8f0 [ 163.131995] anon_vma_clone+0x140/0x740 [ 163.135960] ? fs_reclaim_acquire+0x20/0x20 [ 163.140267] ? unlink_anon_vmas+0xa60/0xa60 [ 163.144575] ? dup_userfaultfd+0x775/0x9a0 [ 163.148797] anon_vma_fork+0xf0/0x960 [ 163.152583] ? kasan_unpoison_shadow+0x35/0x50 [ 163.157149] ? anon_vma_clone+0x740/0x740 [ 163.161280] ? kasan_slab_alloc+0x12/0x20 [ 163.165415] ? kmem_cache_alloc+0x2fc/0x760 [ 163.169726] copy_process.part.41+0x6705/0x73d0 [ 163.174390] ? __cleanup_sighand+0x70/0x70 [ 163.178609] ? lock_release+0xa30/0xa30 [ 163.182571] ? xas_descend+0x20c/0x5f0 [ 163.186445] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 163.191446] ? check_pgprot+0xdf/0x180 [ 163.195319] ? put_page+0x280/0x280 [ 163.198931] ? kasan_check_write+0x14/0x20 [ 163.203154] ? do_raw_spin_lock+0xc1/0x200 [ 163.207378] ? alloc_set_pte+0xaf6/0x1790 [ 163.211516] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 163.216521] ? filemap_map_pages+0xca2/0x1990 [ 163.221024] ? lock_downgrade+0x8f0/0x8f0 [ 163.225159] ? xa_set_tag+0x40/0x40 [ 163.228775] ? environ_open+0x90/0x90 [ 163.232580] ? trace_hardirqs_on+0x10/0x10 [ 163.236806] ? trace_hardirqs_on+0x10/0x10 [ 163.241033] ? filemap_map_pages+0xccb/0x1990 [ 163.245522] ? find_get_entries_tag+0x1410/0x1410 [ 163.250376] ? __account_cfs_rq_runtime+0x770/0x770 [ 163.255382] ? set_next_entity+0x2dd/0xb00 [ 163.259604] ? trace_hardirqs_on+0x10/0x10 [ 163.263828] ? do_raw_spin_lock+0xc1/0x200 [ 163.268049] ? update_load_avg+0x27d0/0x27d0 [ 163.272459] ? __enqueue_entity+0x10d/0x1f0 [ 163.276771] ? pick_next_task_fair+0x999/0x16e0 [ 163.281429] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 163.286954] ? _parse_integer+0x13b/0x190 [ 163.291091] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 163.296613] ? _kstrtoull+0x188/0x250 [ 163.300411] ? _parse_integer+0x190/0x190 [ 163.304546] ? lock_release+0xa30/0xa30 [ 163.308515] ? check_same_owner+0x340/0x340 [ 163.312826] ? __check_object_size+0xa3/0x5d7 [ 163.317310] ? lock_acquire+0x1e4/0x540 [ 163.321271] ? get_pid_task+0xd8/0x1a0 [ 163.325146] ? lock_downgrade+0x8f0/0x8f0 [ 163.329280] ? lock_release+0xa30/0xa30 [ 163.333252] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 163.338774] ? pid_task+0x115/0x200 [ 163.342400] ? find_vpid+0xf0/0xf0 [ 163.345931] ? vmf_insert_mixed_mkwrite+0xa0/0xa0 [ 163.350761] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 163.356289] ? proc_fail_nth_write+0x9e/0x210 [ 163.360770] ? proc_cwd_link+0x1d0/0x1d0 [ 163.364821] ? lock_acquire+0x1e4/0x540 [ 163.368795] ? handle_mm_fault+0x417/0xc80 [ 163.373027] _do_fork+0x291/0x12a0 [ 163.376567] ? fork_idle+0x1a0/0x1a0 [ 163.380280] ? fsnotify_first_mark+0x350/0x350 [ 163.384853] ? __fsnotify_parent+0xcc/0x420 [ 163.389159] ? fsnotify+0x14e0/0x14e0 [ 163.392950] ? __sb_end_write+0xac/0xe0 [ 163.396910] ? vfs_write+0x2ad/0x560 [ 163.400614] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 163.406134] ? ksys_write+0x1ae/0x260 [ 163.409922] ? __ia32_sys_read+0xb0/0xb0 [ 163.413970] __x64_sys_clone+0xbf/0x150 [ 163.417930] do_syscall_64+0x1b9/0x820 [ 163.421805] ? syscall_return_slowpath+0x5e0/0x5e0 [ 163.426721] ? syscall_return_slowpath+0x31d/0x5e0 [ 163.431637] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 163.436639] ? prepare_exit_to_usermode+0x291/0x3b0 [ 163.441638] ? perf_trace_sys_enter+0xb10/0xb10 [ 163.446293] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 163.451124] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 163.456299] RIP: 0033:0x455ab9 [ 163.459467] Code: 1d ba 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 eb b9 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 163.478658] RSP: 002b:00007ffee0f80c88 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 [ 163.486351] RAX: ffffffffffffffda RBX: 0000000000ef0914 RCX: 0000000000455ab9 [ 163.493604] RDX: 00000000200000c0 RSI: 0000000020000080 RDI: 0000000000000000 [ 163.500856] RBP: 000000000072bea0 R08: 0000000020000180 R09: 0000000000000000 [ 163.508108] R10: 0000000020000040 R11: 0000000000000246 R12: 0000000000000008 [ 163.515360] R13: 00000000004bb85d R14: 00000000004c8d28 R15: 0000000000000037 [ 163.522627] CPU: 1 PID: 4555 Comm: syz-executor4 Not tainted 4.18.0-rc5-next-20180720+ #12 [ 163.531027] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 163.535371] FAULT_INJECTION: forcing a failure. [ 163.535371] name failslab, interval 1, probability 0, space 0, times 0 [ 163.540368] Call Trace: [ 163.540385] dump_stack+0x1c9/0x2b4 [ 163.540400] ? dump_stack_print_info.cold.2+0x52/0x52 [ 163.540420] ? lock_release+0xa30/0xa30 [ 163.566853] should_fail.cold.4+0xa/0x11 [ 163.570902] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 163.575994] ? percpu_ref_put_many+0x131/0x240 [ 163.580563] ? mem_cgroup_id_get_online+0x310/0x310 [ 163.585567] ? check_same_owner+0x340/0x340 [ 163.589875] ? __pte_alloc+0x2a/0x3c0 [ 163.593661] ? copy_page_range+0x1670/0x24c0 [ 163.598053] ? rcu_note_context_switch+0x730/0x730 [ 163.602971] ? memcg_kmem_charge+0x1c2/0x300 [ 163.607370] ? __alloc_pages_nodemask+0x6e3/0xdb0 [ 163.612198] ? lock_acquire+0x1e4/0x540 [ 163.616158] ? fs_reclaim_acquire+0x20/0x20 [ 163.620466] ? lock_downgrade+0x8f0/0x8f0 [ 163.624603] ? check_same_owner+0x340/0x340 [ 163.628911] ? rcu_note_context_switch+0x730/0x730 [ 163.633824] ? lock_acquire+0x1e4/0x540 [ 163.637789] __should_failslab+0x124/0x180 [ 163.642011] should_failslab+0x9/0x14 [ 163.645800] kmem_cache_alloc+0x2af/0x760 [ 163.649949] ? __sanitizer_cov_trace_const_cmp2+0x18/0x20 [ 163.655491] ptlock_alloc+0x20/0x80 [ 163.659107] pte_alloc_one+0x6b/0x1a0 [ 163.662894] __pte_alloc+0x2a/0x3c0 [ 163.666509] copy_page_range+0x1670/0x24c0 [ 163.670729] ? kernel_text_address+0x79/0xf0 [ 163.675133] ? __pmd_alloc+0x530/0x530 [ 163.679006] ? _do_fork+0x291/0x12a0 [ 163.682707] ? do_syscall_64+0x1b9/0x820 [ 163.686756] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 163.692107] ? lock_acquire+0x1e4/0x540 [ 163.696079] ? percpu_ref_put_many+0x119/0x240 [ 163.700660] ? lock_downgrade+0x8f0/0x8f0 [ 163.704799] ? lock_release+0xa30/0xa30 [ 163.708760] ? memcg_kmem_get_cache+0x3a9/0x9d0 [ 163.713417] ? anon_vma_fork+0x651/0x960 [ 163.717465] ? lock_downgrade+0x8f0/0x8f0 [ 163.721603] ? lock_release+0xa30/0xa30 [ 163.725560] ? check_same_owner+0x340/0x340 [ 163.729865] ? percpu_ref_put_many+0x131/0x240 [ 163.734431] ? do_raw_spin_unlock+0xa7/0x2f0 [ 163.738831] ? rcu_note_context_switch+0x730/0x730 [ 163.743757] ? up_write+0x7b/0x220 [ 163.747284] ? up_read+0x110/0x110 [ 163.750810] ? anon_vma_interval_tree_insert+0x26b/0x300 [ 163.756250] ? anon_vma_clone+0x740/0x740 [ 163.760385] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 163.765388] ? __vma_link_rb+0x2a4/0x3f0 [ 163.769436] copy_process.part.41+0x5ead/0x73d0 [ 163.774099] ? __cleanup_sighand+0x70/0x70 [ 163.778333] ? lock_release+0xa30/0xa30 [ 163.782293] ? xas_descend+0x20c/0x5f0 [ 163.786180] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 163.791183] ? check_pgprot+0xdf/0x180 [ 163.795059] ? put_page+0x280/0x280 [ 163.798672] ? kasan_check_write+0x14/0x20 [ 163.802891] ? do_raw_spin_lock+0xc1/0x200 [ 163.807115] ? alloc_set_pte+0xaf6/0x1790 [ 163.811252] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 163.816256] ? filemap_map_pages+0xca2/0x1990 [ 163.820735] ? lock_downgrade+0x8f0/0x8f0 [ 163.824869] ? xa_set_tag+0x40/0x40 [ 163.828486] ? environ_open+0x90/0x90 [ 163.832273] ? trace_hardirqs_on+0x10/0x10 [ 163.836495] ? trace_hardirqs_on+0x10/0x10 [ 163.840716] ? filemap_map_pages+0xccb/0x1990 [ 163.845201] ? find_get_entries_tag+0x1410/0x1410 [ 163.850034] ? mntput_no_expire+0x18e/0xbc0 [ 163.854340] ? do_raw_spin_lock+0xc1/0x200 [ 163.858559] ? mnt_get_count+0x150/0x150 [ 163.862607] ? dput.part.26+0x276/0x7a0 [ 163.866569] ? shrink_dcache_sb+0x350/0x350 [ 163.870879] ? chown_common+0x730/0x730 [ 163.874841] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 163.879841] ? bpf_prog_kallsyms_find+0xde/0x4c0 [ 163.884585] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 163.890108] ? _parse_integer+0x13b/0x190 [ 163.894255] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 163.899777] ? _kstrtoull+0x188/0x250 [ 163.903564] ? _parse_integer+0x190/0x190 [ 163.907698] ? lock_release+0xa30/0xa30 [ 163.911654] ? check_same_owner+0x340/0x340 [ 163.915964] ? __check_object_size+0xa3/0x5d7 [ 163.920447] ? lock_acquire+0x1e4/0x540 [ 163.924413] ? get_pid_task+0xd8/0x1a0 [ 163.928286] ? lock_downgrade+0x8f0/0x8f0 [ 163.932419] ? lock_release+0xa30/0xa30 [ 163.936382] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 163.941902] ? pid_task+0x115/0x200 [ 163.945517] ? find_vpid+0xf0/0xf0 [ 163.949046] ? vmf_insert_mixed_mkwrite+0xa0/0xa0 [ 163.954230] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 163.959754] ? proc_fail_nth_write+0x9e/0x210 [ 163.964234] ? proc_cwd_link+0x1d0/0x1d0 [ 163.968282] ? lock_acquire+0x1e4/0x540 [ 163.972243] ? handle_mm_fault+0x417/0xc80 [ 163.976479] _do_fork+0x291/0x12a0 [ 163.980021] ? fork_idle+0x1a0/0x1a0 [ 163.983725] ? fsnotify_first_mark+0x350/0x350 [ 163.988291] ? __fsnotify_parent+0xcc/0x420 [ 163.992599] ? fsnotify+0x14e0/0x14e0 [ 163.996392] ? __sb_end_write+0xac/0xe0 [ 164.000365] ? vfs_write+0x2ad/0x560 [ 164.004067] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 164.009599] ? ksys_write+0x1ae/0x260 [ 164.013398] ? __ia32_sys_read+0xb0/0xb0 [ 164.017448] __x64_sys_clone+0xbf/0x150 [ 164.021412] do_syscall_64+0x1b9/0x820 [ 164.025284] ? syscall_return_slowpath+0x5e0/0x5e0 [ 164.030213] ? syscall_return_slowpath+0x31d/0x5e0 [ 164.035140] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 164.040165] ? prepare_exit_to_usermode+0x291/0x3b0 [ 164.045180] ? perf_trace_sys_enter+0xb10/0xb10 [ 164.049838] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 164.054669] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 164.059852] RIP: 0033:0x455ab9 [ 164.063022] Code: 1d ba 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 eb b9 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 164.082228] RSP: 002b:00007ffe1a74c898 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 [ 164.089922] RAX: ffffffffffffffda RBX: 00000000011c1914 RCX: 0000000000455ab9 [ 164.097187] RDX: 00000000200000c0 RSI: 0000000020000080 RDI: 0000000000000000 [ 164.104442] RBP: 000000000072bea0 R08: 0000000020000180 R09: 0000000000000000 [ 164.111697] R10: 0000000020000040 R11: 0000000000000246 R12: 0000000000000008 [ 164.118955] R13: 00000000004bb85d R14: 00000000004c8d28 R15: 0000000000000037 [ 164.126221] CPU: 0 PID: 4556 Comm: syz-executor3 Not tainted 4.18.0-rc5-next-20180720+ #12 [ 164.127311] FAULT_INJECTION: forcing a failure. [ 164.127311] name failslab, interval 1, probability 0, space 0, times 0 [ 164.134614] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 164.134618] Call Trace: [ 164.134633] dump_stack+0x1c9/0x2b4 [ 164.134647] ? dump_stack_print_info.cold.2+0x52/0x52 [ 164.134664] ? save_stack+0x43/0xd0 [ 164.170064] ? kasan_kmalloc+0xc4/0xe0 [ 164.173937] ? kmem_cache_alloc+0x12e/0x760 [ 164.178249] should_fail.cold.4+0xa/0x11 [ 164.182300] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 164.187402] ? lock_downgrade+0x8f0/0x8f0 [ 164.191540] ? anon_vma_clone+0x4e0/0x740 [ 164.195673] ? lock_downgrade+0x8f0/0x8f0 [ 164.199808] ? lock_release+0xa30/0xa30 [ 164.203770] ? check_same_owner+0x340/0x340 [ 164.208078] ? percpu_ref_put_many+0x131/0x240 [ 164.212647] ? lock_acquire+0x1e4/0x540 [ 164.216609] ? fs_reclaim_acquire+0x20/0x20 [ 164.220917] ? lock_downgrade+0x8f0/0x8f0 [ 164.225073] ? check_same_owner+0x340/0x340 [ 164.229380] ? rcu_note_context_switch+0x730/0x730 [ 164.234294] __should_failslab+0x124/0x180 [ 164.238512] should_failslab+0x9/0x14 [ 164.242300] kmem_cache_alloc+0x2af/0x760 [ 164.246435] ? dup_userfaultfd+0x775/0x9a0 [ 164.250655] anon_vma_fork+0x192/0x960 [ 164.254526] ? kasan_unpoison_shadow+0x35/0x50 [ 164.259093] ? anon_vma_clone+0x740/0x740 [ 164.263225] ? kasan_slab_alloc+0x12/0x20 [ 164.267356] ? kmem_cache_alloc+0x2fc/0x760 [ 164.271663] ? __vma_link_rb+0x2a4/0x3f0 [ 164.275712] copy_process.part.41+0x6705/0x73d0 [ 164.280375] ? __cleanup_sighand+0x70/0x70 [ 164.284607] ? lock_release+0xa30/0xa30 [ 164.288566] ? xas_descend+0x20c/0x5f0 [ 164.292439] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 164.297440] ? check_pgprot+0xdf/0x180 [ 164.301311] ? put_page+0x280/0x280 [ 164.304923] ? kasan_check_write+0x14/0x20 [ 164.309144] ? do_raw_spin_lock+0xc1/0x200 [ 164.313367] ? alloc_set_pte+0xaf6/0x1790 [ 164.317504] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 164.322504] ? filemap_map_pages+0xca2/0x1990 [ 164.326985] ? lock_downgrade+0x8f0/0x8f0 [ 164.331120] ? xa_set_tag+0x40/0x40 [ 164.334733] ? do_raw_spin_trylock+0x1c0/0x1c0 [ 164.339303] ? kasan_check_write+0x14/0x20 [ 164.343521] ? do_raw_spin_lock+0xc1/0x200 [ 164.347759] ? trace_hardirqs_on+0x10/0x10 [ 164.351982] ? filemap_map_pages+0xccb/0x1990 [ 164.356469] ? find_get_entries_tag+0x1410/0x1410 [ 164.361307] ? kasan_check_read+0x11/0x20 [ 164.365439] ? do_raw_spin_unlock+0xa7/0x2f0 [ 164.369831] ? do_raw_spin_trylock+0x1c0/0x1c0 [ 164.374402] ? __pte_alloc_kernel+0x2e0/0x2e0 [ 164.378884] ? shrink_dcache_sb+0x350/0x350 [ 164.383191] ? chown_common+0x730/0x730 [ 164.387153] ? do_wp_page+0x435/0x1670 [ 164.391028] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 164.395774] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 164.401296] ? _parse_integer+0x13b/0x190 [ 164.405431] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 164.410955] ? _kstrtoull+0x188/0x250 [ 164.414740] ? _parse_integer+0x190/0x190 [ 164.418872] ? lock_release+0xa30/0xa30 [ 164.422831] ? check_same_owner+0x340/0x340 [ 164.427142] ? __check_object_size+0xa3/0x5d7 [ 164.431626] ? lock_acquire+0x1e4/0x540 [ 164.435584] ? get_pid_task+0xd8/0x1a0 [ 164.439458] ? lock_downgrade+0x8f0/0x8f0 [ 164.443594] ? lock_release+0xa30/0xa30 [ 164.447553] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 164.453073] ? pid_task+0x115/0x200 [ 164.456683] ? find_vpid+0xf0/0xf0 [ 164.460213] ? vmf_insert_mixed_mkwrite+0xa0/0xa0 [ 164.465043] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 164.470566] ? proc_fail_nth_write+0x9e/0x210 [ 164.475049] ? proc_cwd_link+0x1d0/0x1d0 [ 164.479095] ? lock_acquire+0x1e4/0x540 [ 164.483055] ? handle_mm_fault+0x417/0xc80 [ 164.487275] _do_fork+0x291/0x12a0 [ 164.490804] ? fork_idle+0x1a0/0x1a0 [ 164.494503] ? fsnotify_first_mark+0x350/0x350 [ 164.499070] ? __fsnotify_parent+0xcc/0x420 [ 164.503376] ? fsnotify+0x14e0/0x14e0 [ 164.507166] ? __sb_end_write+0xac/0xe0 [ 164.511125] ? vfs_write+0x2ad/0x560 [ 164.514828] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 164.520347] ? ksys_write+0x1ae/0x260 [ 164.524134] ? __ia32_sys_read+0xb0/0xb0 [ 164.528194] __x64_sys_clone+0xbf/0x150 [ 164.532155] do_syscall_64+0x1b9/0x820 [ 164.536028] ? syscall_slow_exit_work+0x500/0x500 [ 164.540857] ? syscall_return_slowpath+0x5e0/0x5e0 [ 164.545773] ? syscall_return_slowpath+0x31d/0x5e0 [ 164.550691] ? prepare_exit_to_usermode+0x291/0x3b0 [ 164.555695] ? perf_trace_sys_enter+0xb10/0xb10 [ 164.560350] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 164.565180] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 164.570351] RIP: 0033:0x455ab9 [ 164.573519] Code: 1d ba 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 eb b9 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 164.592714] RSP: 002b:00007ffece7170e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 [ 164.600405] RAX: ffffffffffffffda RBX: 00000000023c4914 RCX: 0000000000455ab9 [ 164.607657] RDX: 00000000200000c0 RSI: 0000000020000080 RDI: 0000000000000000 [ 164.614909] RBP: 000000000072bea0 R08: 0000000020000180 R09: 0000000000000000 [ 164.622165] R10: 0000000020000040 R11: 0000000000000246 R12: 0000000000000008 [ 164.629419] R13: 00000000004bb85d R14: 00000000004c8d28 R15: 0000000000000037 [ 164.636688] CPU: 1 PID: 4552 Comm: syz-executor1 Not tainted 4.18.0-rc5-next-20180720+ #12 [ 164.637989] FAULT_INJECTION: forcing a failure. [ 164.637989] name failslab, interval 1, probability 0, space 0, times 0 [ 164.645078] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 164.645082] Call Trace: [ 164.645097] dump_stack+0x1c9/0x2b4 [ 164.645117] ? dump_stack_print_info.cold.2+0x52/0x52 [ 164.676933] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 164.681940] should_fail.cold.4+0xa/0x11 [ 164.686001] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 164.691097] ? lock_release+0xa30/0xa30 [ 164.695061] ? kasan_check_read+0x11/0x20 [ 164.699196] ? rcu_is_watching+0x8c/0x150 [ 164.703331] ? rcu_cleanup_dead_rnp+0x200/0x200 [ 164.707989] ? is_bpf_text_address+0xd7/0x170 [ 164.712475] ? kernel_text_address+0x79/0xf0 [ 164.716869] ? __kernel_text_address+0xd/0x40 [ 164.721350] ? unwind_get_return_address+0x61/0xa0 [ 164.726266] ? __save_stack_trace+0x8d/0xf0 [ 164.730574] ? save_stack+0xa9/0xd0 [ 164.734184] ? save_stack+0x43/0xd0 [ 164.737793] ? kasan_kmalloc+0xc4/0xe0 [ 164.741665] __should_failslab+0x124/0x180 [ 164.745884] should_failslab+0x9/0x14 [ 164.749672] kmem_cache_alloc+0x47/0x760 [ 164.753716] ? lock_acquire+0x1e4/0x540 [ 164.757676] ? percpu_ref_put_many+0x119/0x240 [ 164.762256] ? lock_downgrade+0x8f0/0x8f0 [ 164.766409] anon_vma_clone+0x140/0x740 [ 164.770369] ? fs_reclaim_acquire+0x20/0x20 [ 164.774676] ? unlink_anon_vmas+0xa60/0xa60 [ 164.778984] ? dup_userfaultfd+0x775/0x9a0 [ 164.783221] anon_vma_fork+0xf0/0x960 [ 164.787011] ? kasan_unpoison_shadow+0x35/0x50 [ 164.791582] ? anon_vma_clone+0x740/0x740 [ 164.795717] ? kasan_slab_alloc+0x12/0x20 [ 164.799849] ? kmem_cache_alloc+0x2fc/0x760 [ 164.804163] copy_process.part.41+0x6705/0x73d0 [ 164.808827] ? __cleanup_sighand+0x70/0x70 [ 164.813047] ? lock_release+0xa30/0xa30 [ 164.817008] ? xas_descend+0x20c/0x5f0 [ 164.820897] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 164.825901] ? check_pgprot+0xdf/0x180 [ 164.829772] ? put_page+0x280/0x280 [ 164.833387] ? kasan_check_write+0x14/0x20 [ 164.837610] ? do_raw_spin_lock+0xc1/0x200 [ 164.841838] ? alloc_set_pte+0xaf6/0x1790 [ 164.845989] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 164.850992] ? filemap_map_pages+0xca2/0x1990 [ 164.855473] ? lock_downgrade+0x8f0/0x8f0 [ 164.859609] ? xa_set_tag+0x40/0x40 [ 164.863222] ? do_raw_spin_trylock+0x1c0/0x1c0 [ 164.867790] ? kasan_check_write+0x14/0x20 [ 164.872011] ? do_raw_spin_lock+0xc1/0x200 [ 164.876234] ? trace_hardirqs_on+0x10/0x10 [ 164.880454] ? filemap_map_pages+0xccb/0x1990 [ 164.884952] ? find_get_entries_tag+0x1410/0x1410 [ 164.889787] ? kasan_check_read+0x11/0x20 [ 164.893919] ? do_raw_spin_unlock+0xa7/0x2f0 [ 164.898313] ? do_raw_spin_trylock+0x1c0/0x1c0 [ 164.902881] ? __pte_alloc_kernel+0x2e0/0x2e0 [ 164.907363] ? shrink_dcache_sb+0x350/0x350 [ 164.911671] ? chown_common+0x730/0x730 [ 164.915634] ? do_wp_page+0x435/0x1670 [ 164.919510] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 164.925031] ? _parse_integer+0x13b/0x190 [ 164.929167] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 164.934690] ? _kstrtoull+0x188/0x250 [ 164.938490] ? _parse_integer+0x190/0x190 [ 164.942622] ? lock_release+0xa30/0xa30 [ 164.946581] ? check_same_owner+0x340/0x340 [ 164.950887] ? __check_object_size+0xa3/0x5d7 [ 164.955372] ? lock_acquire+0x1e4/0x540 [ 164.959333] ? get_pid_task+0xd8/0x1a0 [ 164.963205] ? lock_downgrade+0x8f0/0x8f0 [ 164.967341] ? lock_release+0xa30/0xa30 [ 164.971307] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 164.976831] ? pid_task+0x115/0x200 [ 164.980446] ? find_vpid+0xf0/0xf0 [ 164.983976] ? vmf_insert_mixed_mkwrite+0xa0/0xa0 [ 164.988807] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 164.994329] ? proc_fail_nth_write+0x9e/0x210 [ 164.998810] ? proc_cwd_link+0x1d0/0x1d0 [ 165.002857] ? lock_acquire+0x1e4/0x540 [ 165.006815] ? handle_mm_fault+0x417/0xc80 [ 165.011039] _do_fork+0x291/0x12a0 [ 165.014568] ? fork_idle+0x1a0/0x1a0 [ 165.018286] ? fsnotify_first_mark+0x350/0x350 [ 165.022853] ? __fsnotify_parent+0xcc/0x420 [ 165.027172] ? fsnotify+0x14e0/0x14e0 [ 165.030964] ? __sb_end_write+0xac/0xe0 [ 165.034922] ? vfs_write+0x2ad/0x560 [ 165.038622] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 165.044144] ? ksys_write+0x1ae/0x260 [ 165.047931] ? __ia32_sys_read+0xb0/0xb0 [ 165.051980] __x64_sys_clone+0xbf/0x150 [ 165.055943] do_syscall_64+0x1b9/0x820 [ 165.059816] ? syscall_return_slowpath+0x5e0/0x5e0 [ 165.064733] ? syscall_return_slowpath+0x31d/0x5e0 [ 165.069652] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 165.074653] ? prepare_exit_to_usermode+0x291/0x3b0 [ 165.079657] ? perf_trace_sys_enter+0xb10/0xb10 [ 165.084312] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 165.089144] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 165.094317] RIP: 0033:0x455ab9 [ 165.097485] Code: 1d ba 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 eb b9 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 165.116689] RSP: 002b:00007fff66d3e588 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 [ 165.124391] RAX: ffffffffffffffda RBX: 0000000000cfa914 RCX: 0000000000455ab9 [ 165.131646] RDX: 00000000200000c0 RSI: 0000000020000080 RDI: 0000000000000000 [ 165.138899] RBP: 000000000072bea0 R08: 0000000020000180 R09: 0000000000000000 [ 165.146173] R10: 0000000020000040 R11: 0000000000000246 R12: 0000000000000008 [ 165.153427] R13: 00000000004bb85d R14: 00000000004c8d28 R15: 0000000000000037 [ 165.160711] CPU: 0 PID: 4553 Comm: syz-executor2 Not tainted 4.18.0-rc5-next-20180720+ #12 [ 165.165829] FAULT_INJECTION: forcing a failure. [ 165.165829] name failslab, interval 1, probability 0, space 0, times 0 [ 165.169106] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 165.169111] Call Trace: [ 165.169126] dump_stack+0x1c9/0x2b4 [ 165.169139] ? dump_stack_print_info.cold.2+0x52/0x52 [ 165.169158] ? _do_fork+0x291/0x12a0 [ 165.204684] should_fail.cold.4+0xa/0x11 [ 165.208731] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 165.213821] ? lock_release+0xa30/0xa30 [ 165.217781] ? memcg_kmem_get_cache+0x3a9/0x9d0 [ 165.222436] ? anon_vma_fork+0x651/0x960 [ 165.226497] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 165.231502] ? percpu_counter_add_batch+0xf2/0x150 [ 165.236420] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 165.241420] ? __vm_enough_memory+0x590/0x980 [ 165.245905] ? lock_acquire+0x1e4/0x540 [ 165.249881] ? fs_reclaim_acquire+0x20/0x20 [ 165.254200] ? lock_downgrade+0x8f0/0x8f0 [ 165.258332] ? up_write+0x7b/0x220 [ 165.261864] ? check_same_owner+0x340/0x340 [ 165.266171] ? rcu_note_context_switch+0x730/0x730 [ 165.271089] __should_failslab+0x124/0x180 [ 165.275308] should_failslab+0x9/0x14 [ 165.279094] kmem_cache_alloc+0x2af/0x760 [ 165.283231] ? security_vm_enough_memory_mm+0x9d/0xc0 [ 165.288409] copy_process.part.41+0x2f81/0x73d0 [ 165.293075] ? __cleanup_sighand+0x70/0x70 [ 165.297294] ? lock_release+0xa30/0xa30 [ 165.301254] ? xas_descend+0x20c/0x5f0 [ 165.305129] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 165.310129] ? check_pgprot+0xdf/0x180 [ 165.314000] ? put_page+0x280/0x280 [ 165.317705] ? kasan_check_write+0x14/0x20 [ 165.321925] ? do_raw_spin_lock+0xc1/0x200 [ 165.326160] ? alloc_set_pte+0xaf6/0x1790 [ 165.330296] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 165.335302] ? filemap_map_pages+0xca2/0x1990 [ 165.339782] ? lock_downgrade+0x8f0/0x8f0 [ 165.343918] ? xa_set_tag+0x40/0x40 [ 165.347533] ? environ_open+0x90/0x90 [ 165.351322] ? trace_hardirqs_on+0x10/0x10 [ 165.355543] ? trace_hardirqs_on+0x10/0x10 [ 165.359764] ? filemap_map_pages+0xccb/0x1990 [ 165.364247] ? find_get_entries_tag+0x1410/0x1410 [ 165.369080] ? mntput_no_expire+0x18e/0xbc0 [ 165.373385] ? do_raw_spin_lock+0xc1/0x200 [ 165.377606] ? mnt_get_count+0x150/0x150 [ 165.381655] ? dput.part.26+0x276/0x7a0 [ 165.385615] ? shrink_dcache_sb+0x350/0x350 [ 165.389921] ? chown_common+0x730/0x730 [ 165.393898] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 165.398899] ? bpf_prog_kallsyms_find+0xde/0x4c0 [ 165.403649] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 165.409174] ? _parse_integer+0x13b/0x190 [ 165.413310] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 165.418832] ? _kstrtoull+0x188/0x250 [ 165.422622] ? _parse_integer+0x190/0x190 [ 165.426756] ? lock_release+0xa30/0xa30 [ 165.430713] ? check_same_owner+0x340/0x340 [ 165.435036] ? __check_object_size+0xa3/0x5d7 [ 165.439521] ? lock_acquire+0x1e4/0x540 [ 165.443482] ? get_pid_task+0xd8/0x1a0 [ 165.447357] ? lock_downgrade+0x8f0/0x8f0 [ 165.451496] ? lock_release+0xa30/0xa30 [ 165.455455] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 165.460975] ? pid_task+0x115/0x200 [ 165.464588] ? find_vpid+0xf0/0xf0 [ 165.468115] ? vmf_insert_mixed_mkwrite+0xa0/0xa0 [ 165.472948] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 165.478471] ? proc_fail_nth_write+0x9e/0x210 [ 165.482951] ? proc_cwd_link+0x1d0/0x1d0 [ 165.486997] ? lock_acquire+0x1e4/0x540 [ 165.490958] ? handle_mm_fault+0x417/0xc80 [ 165.495184] _do_fork+0x291/0x12a0 [ 165.498710] ? fork_idle+0x1a0/0x1a0 [ 165.502427] ? fsnotify_first_mark+0x350/0x350 [ 165.506992] ? __fsnotify_parent+0xcc/0x420 [ 165.511299] ? fsnotify+0x14e0/0x14e0 [ 165.515089] ? __sb_end_write+0xac/0xe0 [ 165.519050] ? vfs_write+0x2ad/0x560 [ 165.522750] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 165.528284] ? ksys_write+0x1ae/0x260 [ 165.532073] ? __ia32_sys_read+0xb0/0xb0 [ 165.536120] __x64_sys_clone+0xbf/0x150 [ 165.540085] do_syscall_64+0x1b9/0x820 [ 165.543962] ? syscall_return_slowpath+0x5e0/0x5e0 [ 165.548882] ? syscall_return_slowpath+0x31d/0x5e0 [ 165.553796] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 165.558798] ? prepare_exit_to_usermode+0x291/0x3b0 [ 165.563817] ? perf_trace_sys_enter+0xb10/0xb10 [ 165.568485] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 165.573319] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 165.578492] RIP: 0033:0x455ab9 [ 165.581663] Code: 1d ba 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 eb b9 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 165.600862] RSP: 002b:00007fffdc1d8e08 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 [ 165.608567] RAX: ffffffffffffffda RBX: 0000000001654914 RCX: 0000000000455ab9 [ 165.615822] RDX: 00000000200000c0 RSI: 0000000020000080 RDI: 0000000000000000 [ 165.623079] RBP: 000000000072bea0 R08: 0000000020000180 R09: 0000000000000000 [ 165.630332] R10: 0000000020000040 R11: 0000000000000246 R12: 0000000000000008 [ 165.637587] R13: 00000000004bb85d R14: 00000000004c8d28 R15: 0000000000000037 [ 165.644855] CPU: 1 PID: 4554 Comm: syz-executor7 Not tainted 4.18.0-rc5-next-20180720+ #12 [ 165.653260] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 165.660550] x86/PAT: syz-executor0:4569 map pfn RAM range req write-combining for [mem 0x1aed70000-0x1aed73fff], got write-back [ 165.662603] Call Trace: [ 165.662619] dump_stack+0x1c9/0x2b4 [ 165.662636] ? dump_stack_print_info.cold.2+0x52/0x52 [ 165.685579] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 165.690602] should_fail.cold.4+0xa/0x11 [ 165.694667] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 165.699771] ? lock_release+0xa30/0xa30 [ 165.702518] FAULT_INJECTION: forcing a failure. [ 165.702518] name failslab, interval 1, probability 0, space 0, times 0 [ 165.703745] ? kasan_check_read+0x11/0x20 [ 165.703758] ? rcu_is_watching+0x8c/0x150 [ 165.703778] ? rcu_cleanup_dead_rnp+0x200/0x200 [ 165.727827] ? is_bpf_text_address+0xd7/0x170 [ 165.732309] ? kernel_text_address+0x79/0xf0 [ 165.736706] ? __kernel_text_address+0xd/0x40 [ 165.741188] ? unwind_get_return_address+0x61/0xa0 [ 165.746103] ? __save_stack_trace+0x8d/0xf0 [ 165.750415] ? save_stack+0xa9/0xd0 [ 165.754029] ? save_stack+0x43/0xd0 [ 165.757639] ? kasan_kmalloc+0xc4/0xe0 [ 165.761512] __should_failslab+0x124/0x180 [ 165.765732] should_failslab+0x9/0x14 [ 165.769521] kmem_cache_alloc+0x47/0x760 [ 165.773566] ? lock_acquire+0x1e4/0x540 [ 165.777524] ? percpu_ref_put_many+0x119/0x240 [ 165.782094] ? lock_downgrade+0x8f0/0x8f0 [ 165.786228] anon_vma_clone+0x140/0x740 [ 165.790189] ? fs_reclaim_acquire+0x20/0x20 [ 165.794495] ? unlink_anon_vmas+0xa60/0xa60 [ 165.798804] ? dup_userfaultfd+0x775/0x9a0 [ 165.803026] anon_vma_fork+0xf0/0x960 [ 165.806811] ? kasan_unpoison_shadow+0x35/0x50 [ 165.811380] ? anon_vma_clone+0x740/0x740 [ 165.815514] ? kasan_slab_alloc+0x12/0x20 [ 165.819667] ? kmem_cache_alloc+0x2fc/0x760 [ 165.823979] copy_process.part.41+0x6705/0x73d0 [ 165.828645] ? __cleanup_sighand+0x70/0x70 [ 165.832867] ? lock_release+0xa30/0xa30 [ 165.836827] ? xas_descend+0x20c/0x5f0 [ 165.840714] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 165.845714] ? check_pgprot+0xdf/0x180 [ 165.849598] ? put_page+0x280/0x280 [ 165.853210] ? kasan_check_write+0x14/0x20 [ 165.857430] ? do_raw_spin_lock+0xc1/0x200 [ 165.861653] ? alloc_set_pte+0xaf6/0x1790 [ 165.865801] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 165.870804] ? filemap_map_pages+0xca2/0x1990 [ 165.875297] ? lock_downgrade+0x8f0/0x8f0 [ 165.879436] ? xa_set_tag+0x40/0x40 [ 165.883051] ? do_raw_spin_trylock+0x1c0/0x1c0 [ 165.887619] ? kasan_check_write+0x14/0x20 [ 165.891839] ? do_raw_spin_lock+0xc1/0x200 [ 165.896059] ? trace_hardirqs_on+0x10/0x10 [ 165.900279] ? filemap_map_pages+0xccb/0x1990 [ 165.904765] ? find_get_entries_tag+0x1410/0x1410 [ 165.909606] ? kasan_check_read+0x11/0x20 [ 165.913738] ? do_raw_spin_unlock+0xa7/0x2f0 [ 165.918130] ? do_raw_spin_trylock+0x1c0/0x1c0 [ 165.922697] ? __pte_alloc_kernel+0x2e0/0x2e0 [ 165.927178] ? shrink_dcache_sb+0x350/0x350 [ 165.931485] ? chown_common+0x730/0x730 [ 165.935450] ? do_wp_page+0x435/0x1670 [ 165.939328] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 165.944852] ? _parse_integer+0x13b/0x190 [ 165.948988] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 165.954823] ? _kstrtoull+0x188/0x250 [ 165.958610] ? _parse_integer+0x190/0x190 [ 165.962746] ? lock_release+0xa30/0xa30 [ 165.966707] ? check_same_owner+0x340/0x340 [ 165.971020] ? __check_object_size+0xa3/0x5d7 [ 165.975503] ? lock_acquire+0x1e4/0x540 [ 165.979461] ? get_pid_task+0xd8/0x1a0 [ 165.983356] ? lock_downgrade+0x8f0/0x8f0 [ 165.987489] ? lock_release+0xa30/0xa30 [ 165.991450] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 165.996970] ? pid_task+0x115/0x200 [ 166.000586] ? find_vpid+0xf0/0xf0 [ 166.004113] ? vmf_insert_mixed_mkwrite+0xa0/0xa0 [ 166.008944] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 166.014466] ? proc_fail_nth_write+0x9e/0x210 [ 166.018945] ? proc_cwd_link+0x1d0/0x1d0 [ 166.022992] ? lock_acquire+0x1e4/0x540 [ 166.026951] ? handle_mm_fault+0x417/0xc80 [ 166.031177] _do_fork+0x291/0x12a0 [ 166.034704] ? fork_idle+0x1a0/0x1a0 [ 166.038406] ? fsnotify_first_mark+0x350/0x350 [ 166.042972] ? __fsnotify_parent+0xcc/0x420 [ 166.047277] ? fsnotify+0x14e0/0x14e0 [ 166.051071] ? __sb_end_write+0xac/0xe0 [ 166.055030] ? vfs_write+0x2ad/0x560 [ 166.058734] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 166.064253] ? ksys_write+0x1ae/0x260 [ 166.068041] ? __ia32_sys_read+0xb0/0xb0 [ 166.072089] __x64_sys_clone+0xbf/0x150 [ 166.076051] do_syscall_64+0x1b9/0x820 [ 166.079926] ? syscall_return_slowpath+0x5e0/0x5e0 [ 166.084845] ? syscall_return_slowpath+0x31d/0x5e0 [ 166.089761] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 166.094765] ? prepare_exit_to_usermode+0x291/0x3b0 [ 166.099765] ? perf_trace_sys_enter+0xb10/0xb10 [ 166.104420] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 166.109252] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 166.114436] RIP: 0033:0x455ab9 [ 166.117606] Code: 1d ba 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 eb b9 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 166.136812] RSP: 002b:00007ffea9330498 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 [ 166.144504] RAX: ffffffffffffffda RBX: 00000000011b5914 RCX: 0000000000455ab9 [ 166.151770] RDX: 00000000200000c0 RSI: 0000000020000080 RDI: 0000000000000000 [ 166.159026] RBP: 000000000072bea0 R08: 0000000020000180 R09: 0000000000000000 [ 166.166280] R10: 0000000020000040 R11: 0000000000000246 R12: 0000000000000008 [ 166.173534] R13: 00000000004bb85d R14: 00000000004c8d28 R15: 0000000000000037 [ 166.180806] CPU: 0 PID: 4569 Comm: syz-executor0 Not tainted 4.18.0-rc5-next-20180720+ #12 [ 166.185930] x86/PAT: syz-executor6:4568 map pfn RAM range req write-combining for [mem 0x1b2910000-0x1b2913fff], got write-back [ 166.189197] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 166.189201] Call Trace: [ 166.189216] dump_stack+0x1c9/0x2b4 [ 166.189228] ? dump_stack_print_info.cold.2+0x52/0x52 [ 166.189243] ? __kernel_text_address+0xd/0x40 [ 166.219532] FAULT_INJECTION: forcing a failure. [ 166.219532] name failslab, interval 1, probability 0, space 0, times 0 [ 166.221518] ? unwind_get_return_address+0x61/0xa0 [ 166.221534] should_fail.cold.4+0xa/0x11 [ 166.221550] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 166.251199] ? save_stack+0xa9/0xd0 [ 166.254812] ? kasan_kmalloc+0xc4/0xe0 [ 166.258686] ? kasan_slab_alloc+0x12/0x20 [ 166.262819] ? kmem_cache_alloc+0x12e/0x760 [ 166.267139] ? anon_vma_fork+0x192/0x960 [ 166.271185] ? copy_process.part.41+0x6705/0x73d0 [ 166.276012] ? _do_fork+0x291/0x12a0 [ 166.279711] ? __x64_sys_clone+0xbf/0x150 [ 166.283848] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 166.289200] ? lock_acquire+0x1e4/0x540 [ 166.293159] ? percpu_ref_put_many+0x119/0x240 [ 166.297729] ? lock_downgrade+0x8f0/0x8f0 [ 166.301866] ? lock_acquire+0x1e4/0x540 [ 166.305825] ? fs_reclaim_acquire+0x20/0x20 [ 166.310132] ? lock_downgrade+0x8f0/0x8f0 [ 166.314269] ? check_same_owner+0x340/0x340 [ 166.318577] ? rcu_note_context_switch+0x730/0x730 [ 166.323489] ? kasan_unpoison_shadow+0x35/0x50 [ 166.328061] __should_failslab+0x124/0x180 [ 166.332281] should_failslab+0x9/0x14 [ 166.336068] kmem_cache_alloc+0x2af/0x760 [ 166.340202] ? dup_userfaultfd+0x775/0x9a0 [ 166.344419] ? anon_vma_fork+0x192/0x960 [ 166.348468] anon_vma_fork+0x2dc/0x960 [ 166.352341] ? anon_vma_clone+0x740/0x740 [ 166.356473] ? kasan_slab_alloc+0x12/0x20 [ 166.360609] ? kmem_cache_alloc+0x2fc/0x760 [ 166.365002] ? __vma_link_rb+0x2a4/0x3f0 [ 166.369054] copy_process.part.41+0x6705/0x73d0 [ 166.373721] ? __cleanup_sighand+0x70/0x70 [ 166.377945] ? lock_release+0xa30/0xa30 [ 166.381902] ? xas_descend+0x20c/0x5f0 [ 166.385783] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 166.390790] ? check_pgprot+0xdf/0x180 [ 166.394663] ? put_page+0x280/0x280 [ 166.398293] ? kasan_check_write+0x14/0x20 [ 166.402513] ? do_raw_spin_lock+0xc1/0x200 [ 166.406735] ? alloc_set_pte+0xaf6/0x1790 [ 166.410873] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 166.415878] ? filemap_map_pages+0xca2/0x1990 [ 166.420359] ? lock_downgrade+0x8f0/0x8f0 [ 166.424507] ? xa_set_tag+0x40/0x40 [ 166.428120] ? do_raw_spin_trylock+0x1c0/0x1c0 [ 166.432689] ? kasan_check_write+0x14/0x20 [ 166.436921] ? do_raw_spin_lock+0xc1/0x200 [ 166.441143] ? trace_hardirqs_on+0x10/0x10 [ 166.445365] ? filemap_map_pages+0xccb/0x1990 [ 166.449850] ? find_get_entries_tag+0x1410/0x1410 [ 166.454685] ? kasan_check_read+0x11/0x20 [ 166.458819] ? do_raw_spin_unlock+0xa7/0x2f0 [ 166.463226] ? do_raw_spin_trylock+0x1c0/0x1c0 [ 166.467795] ? __pte_alloc_kernel+0x2e0/0x2e0 [ 166.472275] ? shrink_dcache_sb+0x350/0x350 [ 166.476583] ? chown_common+0x730/0x730 [ 166.480545] ? do_wp_page+0x435/0x1670 [ 166.484422] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 166.489943] ? _parse_integer+0x13b/0x190 [ 166.494080] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 166.499601] ? _kstrtoull+0x188/0x250 [ 166.503386] ? _parse_integer+0x190/0x190 [ 166.507522] ? lock_release+0xa30/0xa30 [ 166.511482] ? check_same_owner+0x340/0x340 [ 166.515791] ? __check_object_size+0xa3/0x5d7 [ 166.520275] ? lock_acquire+0x1e4/0x540 [ 166.524249] ? get_pid_task+0xd8/0x1a0 [ 166.528122] ? lock_downgrade+0x8f0/0x8f0 [ 166.532260] ? lock_release+0xa30/0xa30 [ 166.536234] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 166.541755] ? pid_task+0x115/0x200 [ 166.545370] ? find_vpid+0xf0/0xf0 [ 166.548911] ? vmf_insert_mixed_mkwrite+0xa0/0xa0 [ 166.553741] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 166.559271] ? proc_fail_nth_write+0x9e/0x210 [ 166.563751] ? proc_cwd_link+0x1d0/0x1d0 [ 166.567804] ? lock_acquire+0x1e4/0x540 [ 166.571768] ? handle_mm_fault+0x417/0xc80 [ 166.575990] _do_fork+0x291/0x12a0 [ 166.579518] ? fork_idle+0x1a0/0x1a0 [ 166.583218] ? fsnotify_first_mark+0x350/0x350 [ 166.587783] ? __fsnotify_parent+0xcc/0x420 [ 166.592093] ? fsnotify+0x14e0/0x14e0 [ 166.595883] ? __sb_end_write+0xac/0xe0 [ 166.599842] ? vfs_write+0x2ad/0x560 [ 166.603549] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 166.609068] ? ksys_write+0x1ae/0x260 [ 166.612855] ? __ia32_sys_read+0xb0/0xb0 [ 166.616908] __x64_sys_clone+0xbf/0x150 [ 166.620872] do_syscall_64+0x1b9/0x820 [ 166.624745] ? syscall_return_slowpath+0x5e0/0x5e0 [ 166.629662] ? syscall_return_slowpath+0x31d/0x5e0 [ 166.634576] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 166.639579] ? prepare_exit_to_usermode+0x291/0x3b0 [ 166.644581] ? perf_trace_sys_enter+0xb10/0xb10 [ 166.649235] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 166.654070] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 166.659242] RIP: 0033:0x455ab9 [ 166.662411] Code: 1d ba 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 eb b9 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 166.681604] RSP: 002b:00007ffdd193e648 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 [ 166.689297] RAX: ffffffffffffffda RBX: 0000000000b34914 RCX: 0000000000455ab9 [ 166.696550] RDX: 00000000200000c0 RSI: 0000000020000080 RDI: 0000000000000000 [ 166.703803] RBP: 000000000072bea0 R08: 0000000020000180 R09: 0000000000000000 [ 166.711057] R10: 0000000020000040 R11: 0000000000000246 R12: 0000000000000008 [ 166.718308] R13: 00000000004bb85d R14: 00000000004c8d28 R15: 0000000000000037 2018/07/23 10:49:10 executed programs: 10 [ 166.725576] CPU: 1 PID: 4568 Comm: syz-executor6 Not tainted 4.18.0-rc5-next-20180720+ #12 [ 166.733977] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 166.741488] x86/PAT: syz-executor7:4554 map pfn RAM range req write-combining for [mem 0x1bd9d9000-0x1bd9d9fff], got write-back [ 166.743317] Call Trace: [ 166.743334] dump_stack+0x1c9/0x2b4 [ 166.743348] ? dump_stack_print_info.cold.2+0x52/0x52 [ 166.743365] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 166.771300] should_fail.cold.4+0xa/0x11 [ 166.773992] x86/PAT: syz-executor4:4575 map pfn RAM range req write-combining for [mem 0x1b2490000-0x1b2493fff], got write-back [ 166.775361] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 166.775375] ? lock_release+0xa30/0xa30 [ 166.775393] ? kasan_check_read+0x11/0x20 [ 166.800151] ? rcu_is_watching+0x8c/0x150 [ 166.804300] ? rcu_cleanup_dead_rnp+0x200/0x200 [ 166.808970] ? is_bpf_text_address+0xd7/0x170 [ 166.813468] ? kernel_text_address+0x79/0xf0 [ 166.816088] FAULT_INJECTION: forcing a failure. [ 166.816088] name failslab, interval 1, probability 0, space 0, times 0 [ 166.817872] ? __kernel_text_address+0xd/0x40 [ 166.817886] ? unwind_get_return_address+0x61/0xa0 [ 166.817898] ? __save_stack_trace+0x8d/0xf0 [ 166.817917] ? save_stack+0xa9/0xd0 [ 166.846345] ? save_stack+0x43/0xd0 [ 166.849954] ? kasan_kmalloc+0xc4/0xe0 [ 166.853827] __should_failslab+0x124/0x180 [ 166.858047] should_failslab+0x9/0x14 [ 166.861833] kmem_cache_alloc+0x47/0x760 [ 166.865880] ? lock_acquire+0x1e4/0x540 [ 166.869855] ? percpu_ref_put_many+0x119/0x240 [ 166.874424] ? lock_downgrade+0x8f0/0x8f0 [ 166.878572] anon_vma_clone+0x140/0x740 [ 166.882536] ? fs_reclaim_acquire+0x20/0x20 [ 166.886845] ? unlink_anon_vmas+0xa60/0xa60 [ 166.891154] ? dup_userfaultfd+0x775/0x9a0 [ 166.895375] anon_vma_fork+0xf0/0x960 [ 166.899158] ? kasan_unpoison_shadow+0x35/0x50 [ 166.903728] ? anon_vma_clone+0x740/0x740 [ 166.907861] ? kasan_slab_alloc+0x12/0x20 [ 166.911994] ? kmem_cache_alloc+0x2fc/0x760 [ 166.916311] copy_process.part.41+0x6705/0x73d0 [ 166.920976] ? __cleanup_sighand+0x70/0x70 [ 166.925197] ? lock_release+0xa30/0xa30 [ 166.929158] ? xas_descend+0x20c/0x5f0 [ 166.933034] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 166.938036] ? check_pgprot+0xdf/0x180 [ 166.941911] ? put_page+0x280/0x280 [ 166.945524] ? kasan_check_write+0x14/0x20 [ 166.949744] ? do_raw_spin_lock+0xc1/0x200 [ 166.953968] ? alloc_set_pte+0xaf6/0x1790 [ 166.958108] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 166.963115] ? filemap_map_pages+0xca2/0x1990 [ 166.967595] ? lock_downgrade+0x8f0/0x8f0 [ 166.971728] ? xa_set_tag+0x40/0x40 [ 166.975341] ? environ_open+0x90/0x90 [ 166.979128] ? trace_hardirqs_on+0x10/0x10 [ 166.983377] ? trace_hardirqs_on+0x10/0x10 [ 166.987622] ? filemap_map_pages+0xccb/0x1990 [ 166.992109] ? find_get_entries_tag+0x1410/0x1410 [ 166.996941] ? mntput_no_expire+0x18e/0xbc0 [ 167.001250] ? do_raw_spin_lock+0xc1/0x200 [ 167.005472] ? mnt_get_count+0x150/0x150 [ 167.009524] ? dput.part.26+0x276/0x7a0 [ 167.013484] ? shrink_dcache_sb+0x350/0x350 [ 167.017793] ? chown_common+0x730/0x730 [ 167.021758] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 167.026759] ? bpf_prog_kallsyms_find+0xde/0x4c0 [ 167.031505] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 167.037028] ? _parse_integer+0x13b/0x190 [ 167.041166] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 167.046687] ? _kstrtoull+0x188/0x250 [ 167.050488] ? _parse_integer+0x190/0x190 [ 167.054628] ? lock_release+0xa30/0xa30 [ 167.058589] ? check_same_owner+0x340/0x340 [ 167.062900] ? __check_object_size+0xa3/0x5d7 [ 167.067384] ? lock_acquire+0x1e4/0x540 [ 167.071346] ? get_pid_task+0xd8/0x1a0 [ 167.075219] ? lock_downgrade+0x8f0/0x8f0 [ 167.079358] ? lock_release+0xa30/0xa30 [ 167.083321] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 167.088842] ? pid_task+0x115/0x200 [ 167.092454] ? find_vpid+0xf0/0xf0 [ 167.095985] ? vmf_insert_mixed_mkwrite+0xa0/0xa0 [ 167.100817] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 167.106340] ? proc_fail_nth_write+0x9e/0x210 [ 167.110823] ? proc_cwd_link+0x1d0/0x1d0 [ 167.114872] ? lock_acquire+0x1e4/0x540 [ 167.118833] ? handle_mm_fault+0x417/0xc80 [ 167.123065] _do_fork+0x291/0x12a0 [ 167.126599] ? fork_idle+0x1a0/0x1a0 [ 167.130303] ? fsnotify_first_mark+0x350/0x350 [ 167.134870] ? __fsnotify_parent+0xcc/0x420 [ 167.139179] ? fsnotify+0x14e0/0x14e0 [ 167.142970] ? __sb_end_write+0xac/0xe0 [ 167.146932] ? vfs_write+0x2ad/0x560 [ 167.150647] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 167.156169] ? ksys_write+0x1ae/0x260 [ 167.159955] ? __ia32_sys_read+0xb0/0xb0 [ 167.164005] __x64_sys_clone+0xbf/0x150 [ 167.167967] do_syscall_64+0x1b9/0x820 [ 167.171841] ? syscall_return_slowpath+0x5e0/0x5e0 [ 167.176757] ? syscall_return_slowpath+0x31d/0x5e0 [ 167.181675] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 167.186680] ? prepare_exit_to_usermode+0x291/0x3b0 [ 167.191684] ? perf_trace_sys_enter+0xb10/0xb10 [ 167.196341] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 167.201187] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 167.206366] RIP: 0033:0x455ab9 [ 167.209542] Code: 1d ba 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 eb b9 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 167.228750] RSP: 002b:00007fff349e6fd8 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 [ 167.236442] RAX: ffffffffffffffda RBX: 0000000002810914 RCX: 0000000000455ab9 [ 167.243695] RDX: 00000000200000c0 RSI: 0000000020000080 RDI: 0000000000000000 [ 167.250962] RBP: 000000000072bea0 R08: 0000000020000180 R09: 0000000000000000 [ 167.258218] R10: 0000000020000040 R11: 0000000000000246 R12: 0000000000000008 [ 167.265474] R13: 00000000004bb85d R14: 00000000004c8d28 R15: 0000000000000037 [ 167.272740] CPU: 0 PID: 4575 Comm: syz-executor4 Not tainted 4.18.0-rc5-next-20180720+ #12 [ 167.281143] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 167.290485] Call Trace: [ 167.292047] x86/PAT: syz-executor6:4568 map pfn RAM range req write-combining for [mem 0x1bb1d5000-0x1bb1d5fff], got write-back [ 167.293068] dump_stack+0x1c9/0x2b4 [ 167.293081] ? dump_stack_print_info.cold.2+0x52/0x52 [ 167.293095] ? save_stack+0x43/0xd0 [ 167.310677] x86/PAT: syz-executor0:4578 map pfn RAM range req write-combining for [mem 0x1baa40000-0x1baa43fff], got write-back [ 167.313464] ? kasan_kmalloc+0xc4/0xe0 [ 167.313477] ? kmem_cache_alloc+0x12e/0x760 [ 167.313495] should_fail.cold.4+0xa/0x11 [ 167.317888] x86/PAT: syz-executor0:4578 map pfn RAM range req write-combining for [mem 0x1c3ca1000-0x1c3ca1fff], got write-back [ 167.328718] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 167.328731] ? lock_downgrade+0x8f0/0x8f0 [ 167.328749] ? anon_vma_clone+0x4e0/0x740 [ 167.332734] FAULT_INJECTION: forcing a failure. [ 167.332734] name failslab, interval 1, probability 0, space 0, times 0 [ 167.336907] ? lock_downgrade+0x8f0/0x8f0 [ 167.336926] ? lock_release+0xa30/0xa30 [ 167.385092] ? check_same_owner+0x340/0x340 [ 167.389401] ? percpu_ref_put_many+0x131/0x240 [ 167.393970] ? lock_acquire+0x1e4/0x540 [ 167.397927] ? fs_reclaim_acquire+0x20/0x20 [ 167.402235] ? lock_downgrade+0x8f0/0x8f0 [ 167.406372] ? check_same_owner+0x340/0x340 [ 167.410694] ? rcu_note_context_switch+0x730/0x730 [ 167.415617] __should_failslab+0x124/0x180 [ 167.419850] should_failslab+0x9/0x14 [ 167.423638] kmem_cache_alloc+0x2af/0x760 [ 167.427777] ? dup_userfaultfd+0x775/0x9a0 [ 167.432015] anon_vma_fork+0x192/0x960 [ 167.435891] ? kasan_unpoison_shadow+0x35/0x50 [ 167.440458] ? anon_vma_clone+0x740/0x740 [ 167.444591] ? kasan_slab_alloc+0x12/0x20 [ 167.448726] ? kmem_cache_alloc+0x2fc/0x760 [ 167.453035] ? __vma_link_rb+0x2a4/0x3f0 [ 167.457086] copy_process.part.41+0x6705/0x73d0 [ 167.461750] ? __cleanup_sighand+0x70/0x70 [ 167.465972] ? lock_release+0xa30/0xa30 [ 167.469932] ? xas_descend+0x20c/0x5f0 [ 167.473807] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 167.478809] ? check_pgprot+0xdf/0x180 [ 167.482707] ? put_page+0x280/0x280 [ 167.486320] ? kasan_check_write+0x14/0x20 [ 167.490540] ? do_raw_spin_lock+0xc1/0x200 [ 167.494763] ? alloc_set_pte+0xaf6/0x1790 [ 167.498900] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 167.503905] ? filemap_map_pages+0xca2/0x1990 [ 167.508386] ? lock_downgrade+0x8f0/0x8f0 [ 167.512520] ? xa_set_tag+0x40/0x40 [ 167.516144] ? environ_open+0x90/0x90 [ 167.519932] ? trace_hardirqs_on+0x10/0x10 [ 167.524155] ? trace_hardirqs_on+0x10/0x10 [ 167.528376] ? filemap_map_pages+0xccb/0x1990 [ 167.532873] ? find_get_entries_tag+0x1410/0x1410 [ 167.537717] ? mntput_no_expire+0x18e/0xbc0 [ 167.542024] ? do_raw_spin_lock+0xc1/0x200 [ 167.546245] ? mnt_get_count+0x150/0x150 [ 167.550294] ? dput.part.26+0x276/0x7a0 [ 167.554254] ? shrink_dcache_sb+0x350/0x350 [ 167.558561] ? chown_common+0x730/0x730 [ 167.562529] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 167.567533] ? bpf_prog_kallsyms_find+0xde/0x4c0 [ 167.572290] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 167.577814] ? _parse_integer+0x13b/0x190 [ 167.581950] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 167.587470] ? _kstrtoull+0x188/0x250 [ 167.591257] ? _parse_integer+0x190/0x190 [ 167.595391] ? lock_release+0xa30/0xa30 [ 167.599349] ? check_same_owner+0x340/0x340 [ 167.603657] ? __check_object_size+0xa3/0x5d7 [ 167.608146] ? lock_acquire+0x1e4/0x540 [ 167.612106] ? get_pid_task+0xd8/0x1a0 [ 167.615981] ? lock_downgrade+0x8f0/0x8f0 [ 167.620116] ? lock_release+0xa30/0xa30 [ 167.624076] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 167.629597] ? pid_task+0x115/0x200 [ 167.633209] ? find_vpid+0xf0/0xf0 [ 167.636737] ? vmf_insert_mixed_mkwrite+0xa0/0xa0 [ 167.641568] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 167.647093] ? proc_fail_nth_write+0x9e/0x210 [ 167.651576] ? proc_cwd_link+0x1d0/0x1d0 [ 167.655624] ? lock_acquire+0x1e4/0x540 [ 167.659586] ? handle_mm_fault+0x417/0xc80 [ 167.663811] _do_fork+0x291/0x12a0 [ 167.667339] ? fork_idle+0x1a0/0x1a0 [ 167.671040] ? fsnotify_first_mark+0x350/0x350 [ 167.675607] ? __fsnotify_parent+0xcc/0x420 [ 167.679913] ? fsnotify+0x14e0/0x14e0 [ 167.683704] ? __sb_end_write+0xac/0xe0 [ 167.687662] ? vfs_write+0x2ad/0x560 [ 167.691368] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 167.696888] ? ksys_write+0x1ae/0x260 [ 167.700677] ? __ia32_sys_read+0xb0/0xb0 [ 167.704728] __x64_sys_clone+0xbf/0x150 [ 167.708692] do_syscall_64+0x1b9/0x820 [ 167.712568] ? syscall_return_slowpath+0x5e0/0x5e0 [ 167.717487] ? syscall_return_slowpath+0x31d/0x5e0 [ 167.722402] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 167.727414] ? prepare_exit_to_usermode+0x291/0x3b0 [ 167.732417] ? perf_trace_sys_enter+0xb10/0xb10 [ 167.737073] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 167.741906] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 167.747076] RIP: 0033:0x455ab9 [ 167.750244] Code: 1d ba 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 eb b9 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 167.769456] RSP: 002b:00007ffe1a74c898 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 [ 167.777148] RAX: ffffffffffffffda RBX: 00000000011c1914 RCX: 0000000000455ab9 [ 167.784403] RDX: 00000000200000c0 RSI: 0000000020000080 RDI: 0000000000000000 [ 167.791671] RBP: 000000000072bea0 R08: 0000000020000180 R09: 0000000000000000 [ 167.798923] R10: 0000000020000040 R11: 0000000000000246 R12: 0000000000000008 [ 167.806188] R13: 00000000004bb85d R14: 00000000004c8d28 R15: 0000000000000037 [ 167.813457] CPU: 1 PID: 4578 Comm: syz-executor0 Not tainted 4.18.0-rc5-next-20180720+ #12 [ 167.814327] x86/PAT: syz-executor7:4581 map pfn RAM range req write-combining for [mem 0x1b2bb0000-0x1b2bb3fff], got write-back [ 167.821851] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 167.821856] Call Trace: [ 167.821871] dump_stack+0x1c9/0x2b4 [ 167.821885] ? dump_stack_print_info.cold.2+0x52/0x52 [ 167.821901] ? lock_release+0xa30/0xa30 [ 167.821917] should_fail.cold.4+0xa/0x11 [ 167.821932] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 167.821944] ? percpu_ref_put_many+0x131/0x240 [ 167.821958] ? mem_cgroup_id_get_online+0x310/0x310 [ 167.837047] x86/PAT: syz-executor1:4576 map pfn RAM range req write-combining for [mem 0x1ba960000-0x1ba963fff], got write-back [ 167.842884] ? check_same_owner+0x340/0x340 [ 167.842901] ? memcg_kmem_charge+0x1c2/0x300 [ 167.854320] FAULT_INJECTION: forcing a failure. [ 167.854320] name failslab, interval 1, probability 0, space 0, times 0 [ 167.858228] ? __alloc_pages_nodemask+0x6e3/0xdb0 [ 167.858239] ? kmsg_dump_rewind_nolock+0xe4/0xe4 [ 167.858255] ? lock_acquire+0x1e4/0x540 [ 167.921823] ? fs_reclaim_acquire+0x20/0x20 [ 167.926133] ? lock_downgrade+0x8f0/0x8f0 [ 167.930271] ? check_same_owner+0x340/0x340 [ 167.934578] ? rcu_note_context_switch+0x730/0x730 [ 167.939496] __should_failslab+0x124/0x180 [ 167.943716] should_failslab+0x9/0x14 [ 167.947502] kmem_cache_alloc+0x2af/0x760 [ 167.951636] ? reserve_pfn_range+0x700/0x700 [ 167.956370] ? __sanitizer_cov_trace_const_cmp2+0x18/0x20 [ 167.961897] ptlock_alloc+0x20/0x80 [ 167.965513] pte_alloc_one+0x6b/0x1a0 [ 167.969298] __pte_alloc+0x2a/0x3c0 [ 167.972913] copy_page_range+0x1670/0x24c0 [ 167.977133] ? kernel_text_address+0x79/0xf0 [ 167.981531] ? __kernel_text_address+0xd/0x40 [ 167.986023] ? __pmd_alloc+0x530/0x530 [ 167.989895] ? _do_fork+0x291/0x12a0 [ 167.993594] ? __x64_sys_clone+0xbf/0x150 [ 167.997732] ? do_syscall_64+0x1b9/0x820 [ 168.001793] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 168.007144] ? lock_acquire+0x1e4/0x540 [ 168.011107] ? percpu_ref_put_many+0x119/0x240 [ 168.015674] ? lock_downgrade+0x8f0/0x8f0 [ 168.019809] ? lock_release+0xa30/0xa30 [ 168.023769] ? memcg_kmem_get_cache+0x3a9/0x9d0 [ 168.028428] ? lock_downgrade+0x8f0/0x8f0 [ 168.032561] ? lock_release+0xa30/0xa30 [ 168.036525] ? check_same_owner+0x340/0x340 [ 168.040830] ? percpu_ref_put_many+0x131/0x240 [ 168.045398] ? rcu_note_context_switch+0x730/0x730 [ 168.050316] ? copy_process.part.41+0x3384/0x73d0 [ 168.055164] ? lock_downgrade+0x8f0/0x8f0 [ 168.059301] ? lock_release+0xa30/0xa30 [ 168.063259] ? check_same_owner+0x340/0x340 [ 168.067566] ? rcu_note_context_switch+0x730/0x730 [ 168.072486] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 168.077486] ? __vma_link_rb+0x2a4/0x3f0 [ 168.081538] copy_process.part.41+0x5ead/0x73d0 [ 168.086215] ? __cleanup_sighand+0x70/0x70 [ 168.090436] ? lock_release+0xa30/0xa30 [ 168.094398] ? xas_descend+0x20c/0x5f0 [ 168.098270] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 168.103270] ? check_pgprot+0xdf/0x180 [ 168.107149] ? put_page+0x280/0x280 [ 168.110764] ? kasan_check_write+0x14/0x20 [ 168.114981] ? do_raw_spin_lock+0xc1/0x200 [ 168.119204] ? alloc_set_pte+0xaf6/0x1790 [ 168.123342] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 168.128346] ? filemap_map_pages+0xca2/0x1990 [ 168.132830] ? lock_downgrade+0x8f0/0x8f0 [ 168.136979] ? xa_set_tag+0x40/0x40 [ 168.140596] ? do_raw_spin_trylock+0x1c0/0x1c0 [ 168.145167] ? kasan_check_write+0x14/0x20 [ 168.149387] ? do_raw_spin_lock+0xc1/0x200 [ 168.153610] ? trace_hardirqs_on+0x10/0x10 [ 168.157830] ? filemap_map_pages+0xccb/0x1990 [ 168.162317] ? find_get_entries_tag+0x1410/0x1410 [ 168.167157] ? kasan_check_read+0x11/0x20 [ 168.171288] ? do_raw_spin_unlock+0xa7/0x2f0 [ 168.175682] ? do_raw_spin_trylock+0x1c0/0x1c0 [ 168.180249] ? __pte_alloc_kernel+0x2e0/0x2e0 [ 168.184731] ? shrink_dcache_sb+0x350/0x350 [ 168.189038] ? chown_common+0x730/0x730 [ 168.193000] ? do_wp_page+0x435/0x1670 [ 168.196877] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 168.202401] ? _parse_integer+0x13b/0x190 [ 168.206538] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 168.212061] ? _kstrtoull+0x188/0x250 [ 168.215848] ? _parse_integer+0x190/0x190 [ 168.219983] ? lock_release+0xa30/0xa30 [ 168.223942] ? check_same_owner+0x340/0x340 [ 168.228250] ? __check_object_size+0xa3/0x5d7 [ 168.232734] ? lock_acquire+0x1e4/0x540 [ 168.236694] ? get_pid_task+0xd8/0x1a0 [ 168.240566] ? lock_downgrade+0x8f0/0x8f0 [ 168.244714] ? lock_release+0xa30/0xa30 [ 168.248676] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 168.254200] ? pid_task+0x115/0x200 [ 168.257812] ? find_vpid+0xf0/0xf0 [ 168.261340] ? vmf_insert_mixed_mkwrite+0xa0/0xa0 [ 168.266183] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 168.271707] ? proc_fail_nth_write+0x9e/0x210 [ 168.276191] ? proc_cwd_link+0x1d0/0x1d0 [ 168.280238] ? lock_acquire+0x1e4/0x540 [ 168.284197] ? handle_mm_fault+0x417/0xc80 [ 168.288421] _do_fork+0x291/0x12a0 [ 168.291949] ? fork_idle+0x1a0/0x1a0 [ 168.295651] ? fsnotify_first_mark+0x350/0x350 [ 168.300219] ? __fsnotify_parent+0xcc/0x420 [ 168.304525] ? fsnotify+0x14e0/0x14e0 [ 168.308316] ? __sb_end_write+0xac/0xe0 [ 168.312275] ? vfs_write+0x2ad/0x560 [ 168.315976] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 168.321495] ? ksys_write+0x1ae/0x260 [ 168.325280] ? __ia32_sys_read+0xb0/0xb0 [ 168.329329] __x64_sys_clone+0xbf/0x150 [ 168.333290] do_syscall_64+0x1b9/0x820 [ 168.337164] ? syscall_return_slowpath+0x5e0/0x5e0 [ 168.342080] ? syscall_return_slowpath+0x31d/0x5e0 [ 168.346994] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 168.351999] ? prepare_exit_to_usermode+0x291/0x3b0 [ 168.357002] ? perf_trace_sys_enter+0xb10/0xb10 [ 168.361657] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 168.366489] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 168.371660] RIP: 0033:0x455ab9 [ 168.374829] Code: 1d ba 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 eb b9 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 168.394023] RSP: 002b:00007ffdd193e648 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 [ 168.401715] RAX: ffffffffffffffda RBX: 0000000000b34914 RCX: 0000000000455ab9 [ 168.408967] RDX: 00000000200000c0 RSI: 0000000020000080 RDI: 0000000000000000 [ 168.416220] RBP: 000000000072bea0 R08: 0000000020000180 R09: 0000000000000000 [ 168.423472] R10: 0000000020000040 R11: 0000000000000246 R12: 0000000000000008 [ 168.430739] R13: 00000000004bb85d R14: 00000000004c8d28 R15: 0000000000000037 [ 168.438008] CPU: 0 PID: 4581 Comm: syz-executor7 Not tainted 4.18.0-rc5-next-20180720+ #12 [ 168.446409] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 168.446572] WARNING: CPU: 1 PID: 4578 at arch/x86/mm/pat.c:1039 untrack_pfn+0x2ac/0x310 [ 168.455749] Call Trace: [ 168.463898] Kernel panic - not syncing: panic_on_warn set ... [ 168.463898] [ 168.466468] dump_stack+0x1c9/0x2b4 [ 168.477398] ? dump_stack_print_info.cold.2+0x52/0x52 [ 168.482575] ? save_stack+0x43/0xd0 [ 168.486184] ? kasan_kmalloc+0xc4/0xe0 [ 168.490056] ? kmem_cache_alloc+0x12e/0x760 [ 168.494366] should_fail.cold.4+0xa/0x11 [ 168.498416] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 168.503511] ? lock_downgrade+0x8f0/0x8f0 [ 168.507651] ? anon_vma_clone+0x4e0/0x740 [ 168.511785] ? lock_downgrade+0x8f0/0x8f0 [ 168.515922] ? lock_release+0xa30/0xa30 [ 168.519880] ? check_same_owner+0x340/0x340 [ 168.524186] ? percpu_ref_put_many+0x131/0x240 [ 168.528755] ? lock_acquire+0x1e4/0x540 [ 168.532715] ? fs_reclaim_acquire+0x20/0x20 [ 168.537021] ? lock_downgrade+0x8f0/0x8f0 [ 168.541156] ? check_same_owner+0x340/0x340 [ 168.545465] ? rcu_note_context_switch+0x730/0x730 [ 168.550380] __should_failslab+0x124/0x180 [ 168.554600] should_failslab+0x9/0x14 [ 168.558391] kmem_cache_alloc+0x2af/0x760 [ 168.562526] ? dup_userfaultfd+0x775/0x9a0 [ 168.566746] anon_vma_fork+0x192/0x960 [ 168.570619] ? kasan_unpoison_shadow+0x35/0x50 [ 168.575186] ? anon_vma_clone+0x740/0x740 [ 168.579318] ? kasan_slab_alloc+0x12/0x20 [ 168.583451] ? kmem_cache_alloc+0x2fc/0x760 [ 168.587771] ? __vma_link_rb+0x2a4/0x3f0 [ 168.591821] copy_process.part.41+0x6705/0x73d0 [ 168.596487] ? __cleanup_sighand+0x70/0x70 [ 168.600706] ? lock_release+0xa30/0xa30 [ 168.604669] ? xas_descend+0x20c/0x5f0 [ 168.608543] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 168.613544] ? check_pgprot+0xdf/0x180 [ 168.617526] ? put_page+0x280/0x280 [ 168.621236] ? kasan_check_write+0x14/0x20 [ 168.625455] ? do_raw_spin_lock+0xc1/0x200 [ 168.629678] ? alloc_set_pte+0xaf6/0x1790 [ 168.633815] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 168.638818] ? filemap_map_pages+0xca2/0x1990 [ 168.643300] ? lock_downgrade+0x8f0/0x8f0 [ 168.647434] ? xa_set_tag+0x40/0x40 [ 168.651045] ? do_raw_spin_trylock+0x1c0/0x1c0 [ 168.655617] ? kasan_check_write+0x14/0x20 [ 168.659838] ? do_raw_spin_lock+0xc1/0x200 [ 168.664062] ? trace_hardirqs_on+0x10/0x10 [ 168.668281] ? filemap_map_pages+0xccb/0x1990 [ 168.672770] ? find_get_entries_tag+0x1410/0x1410 [ 168.677612] ? kasan_check_read+0x11/0x20 [ 168.681743] ? do_raw_spin_unlock+0xa7/0x2f0 [ 168.686135] ? do_raw_spin_trylock+0x1c0/0x1c0 [ 168.690705] ? __pte_alloc_kernel+0x2e0/0x2e0 [ 168.695188] ? shrink_dcache_sb+0x350/0x350 [ 168.699499] ? chown_common+0x730/0x730 [ 168.703476] ? do_wp_page+0x435/0x1670 [ 168.707352] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 168.712874] ? _parse_integer+0x13b/0x190 [ 168.717009] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 168.722529] ? _kstrtoull+0x188/0x250 [ 168.726315] ? _parse_integer+0x190/0x190 [ 168.730449] ? lock_release+0xa30/0xa30 [ 168.734424] ? check_same_owner+0x340/0x340 [ 168.738734] ? __check_object_size+0xa3/0x5d7 [ 168.743218] ? lock_acquire+0x1e4/0x540 [ 168.747181] ? get_pid_task+0xd8/0x1a0 [ 168.751055] ? lock_downgrade+0x8f0/0x8f0 [ 168.755191] ? lock_release+0xa30/0xa30 [ 168.759151] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 168.764675] ? pid_task+0x115/0x200 [ 168.768286] ? find_vpid+0xf0/0xf0 [ 168.771814] ? vmf_insert_mixed_mkwrite+0xa0/0xa0 [ 168.776646] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 168.782203] ? proc_fail_nth_write+0x9e/0x210 [ 168.786685] ? proc_cwd_link+0x1d0/0x1d0 [ 168.790733] ? lock_acquire+0x1e4/0x540 [ 168.794693] ? handle_mm_fault+0x417/0xc80 [ 168.798931] _do_fork+0x291/0x12a0 [ 168.802459] ? fork_idle+0x1a0/0x1a0 [ 168.806157] ? fsnotify_first_mark+0x350/0x350 [ 168.810726] ? __fsnotify_parent+0xcc/0x420 [ 168.815032] ? fsnotify+0x14e0/0x14e0 [ 168.818823] ? __sb_end_write+0xac/0xe0 [ 168.822781] ? vfs_write+0x2ad/0x560 [ 168.826484] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 168.832006] ? ksys_write+0x1ae/0x260 [ 168.835805] ? __ia32_sys_read+0xb0/0xb0 [ 168.839853] __x64_sys_clone+0xbf/0x150 [ 168.843842] do_syscall_64+0x1b9/0x820 [ 168.847728] ? syscall_return_slowpath+0x5e0/0x5e0 [ 168.852645] ? syscall_return_slowpath+0x31d/0x5e0 [ 168.857565] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 168.862569] ? prepare_exit_to_usermode+0x291/0x3b0 [ 168.867574] ? perf_trace_sys_enter+0xb10/0xb10 [ 168.872234] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 168.877066] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 168.882238] RIP: 0033:0x455ab9 [ 168.885412] Code: 1d ba 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 eb b9 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 168.904618] RSP: 002b:00007ffea9330498 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 [ 168.912309] RAX: ffffffffffffffda RBX: 00000000011b5914 RCX: 0000000000455ab9 [ 168.919574] RDX: 00000000200000c0 RSI: 0000000020000080 RDI: 0000000000000000 [ 168.926833] RBP: 000000000072bea0 R08: 0000000020000180 R09: 0000000000000000 [ 168.934089] R10: 0000000020000040 R11: 0000000000000246 R12: 0000000000000008 [ 168.941343] R13: 00000000004bb85d R14: 00000000004c8d28 R15: 0000000000000037 [ 168.948611] CPU: 1 PID: 4578 Comm: syz-executor0 Not tainted 4.18.0-rc5-next-20180720+ #12 [ 168.953211] FAULT_INJECTION: forcing a failure. [ 168.953211] name failslab, interval 1, probability 0, space 0, times 0 [ 168.957008] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 168.957012] Call Trace: [ 168.957033] dump_stack+0x1c9/0x2b4 [ 168.983711] ? dump_stack_print_info.cold.2+0x52/0x52 [ 168.988891] panic+0x238/0x4e7 [ 168.992069] ? add_taint.cold.5+0x16/0x16 [ 168.996209] ? __warn.cold.8+0x148/0x1ba [ 169.000259] ? __warn.cold.8+0x117/0x1ba [ 169.004324] ? untrack_pfn+0x2ac/0x310 [ 169.008197] __warn.cold.8+0x163/0x1ba [ 169.012072] ? rcu_is_watching+0x8c/0x150 [ 169.016209] ? untrack_pfn+0x2ac/0x310 [ 169.020086] report_bug+0x252/0x2d0 [ 169.023699] do_error_trap+0x1fc/0x4d0 [ 169.027570] ? pmd_huge+0x9a/0x150 [ 169.031099] ? math_error+0x3e0/0x3e0 [ 169.034884] ? unwind_get_return_address+0x61/0xa0 [ 169.039800] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 169.045324] ? __follow_pte_pmd+0x56a/0xaf0 [ 169.049635] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 169.054463] do_invalid_op+0x1b/0x20 [ 169.058162] invalid_op+0x14/0x20 [ 169.061604] RIP: 0010:untrack_pfn+0x2ac/0x310 [ 169.066078] Code: 5e 41 5f 5d c3 e8 14 50 45 00 4c 89 ee 4c 89 ff e8 59 e3 ff ff e8 04 50 45 00 4d 85 e4 0f 85 72 ff ff ff eb 9e e8 f4 4f 45 00 <0f> 0b eb 95 4c 89 e7 e8 88 1a 84 00 e9 92 fe ff ff 48 8b bd 28 ff [ 169.085272] RSP: 0018:ffff8801b485ee00 EFLAGS: 00010293 [ 169.090620] RAX: ffff8801b2b10100 RBX: 1ffff1003690bdc2 RCX: ffffffff81375594 [ 169.097875] RDX: 0000000000000000 RSI: ffffffff813756cc RDI: 0000000000000005 [ 169.105129] RBP: ffff8801b485eed8 R08: ffff8801b2b10100 R09: 0000000000000000 [ 169.112383] R10: ffffed003655e021 R11: ffff8801b2af010b R12: ffff8801b2918460 [ 169.119654] R13: 00000000ffffffea R14: ffff8801b485eeb0 R15: 0000000000000000 [ 169.126921] ? untrack_pfn+0x174/0x310 [ 169.130794] ? untrack_pfn+0x2ac/0x310 [ 169.134677] ? track_pfn_insert+0x180/0x180 [ 169.138995] unmap_single_vma+0x1c5/0x310 [ 169.143131] unmap_vmas+0x120/0x1f0 [ 169.146744] exit_mmap+0x2b5/0x5a0 [ 169.150269] ? __ia32_sys_munmap+0x80/0x80 [ 169.154502] ? __khugepaged_exit+0x455/0x6a0 [ 169.158905] mmput+0x265/0x620 [ 169.162348] ? lock_downgrade+0x851/0x8f0 [ 169.166481] ? set_mm_exe_file+0x200/0x200 [ 169.170706] ? up_write+0x7b/0x220 [ 169.174231] ? up_read+0x110/0x110 [ 169.177760] copy_process.part.41+0x2b1e/0x73d0 [ 169.182427] ? __cleanup_sighand+0x70/0x70 [ 169.186649] ? lock_release+0xa30/0xa30 [ 169.190608] ? xas_descend+0x20c/0x5f0 [ 169.194485] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 169.199486] ? check_pgprot+0xdf/0x180 [ 169.203356] ? put_page+0x280/0x280 [ 169.206983] ? kasan_check_write+0x14/0x20 [ 169.211203] ? do_raw_spin_lock+0xc1/0x200 [ 169.215426] ? alloc_set_pte+0xaf6/0x1790 [ 169.219575] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 169.224577] ? filemap_map_pages+0xca2/0x1990 [ 169.229060] ? lock_downgrade+0x8f0/0x8f0 [ 169.233196] ? xa_set_tag+0x40/0x40 [ 169.236808] ? do_raw_spin_trylock+0x1c0/0x1c0 [ 169.241378] ? kasan_check_write+0x14/0x20 [ 169.245599] ? do_raw_spin_lock+0xc1/0x200 [ 169.249819] ? trace_hardirqs_on+0x10/0x10 [ 169.254040] ? filemap_map_pages+0xccb/0x1990 [ 169.258530] ? find_get_entries_tag+0x1410/0x1410 [ 169.263367] ? kasan_check_read+0x11/0x20 [ 169.267498] ? do_raw_spin_unlock+0xa7/0x2f0 [ 169.271890] ? do_raw_spin_trylock+0x1c0/0x1c0 [ 169.276460] ? __pte_alloc_kernel+0x2e0/0x2e0 [ 169.280943] ? shrink_dcache_sb+0x350/0x350 [ 169.285254] ? chown_common+0x730/0x730 [ 169.289215] ? do_wp_page+0x435/0x1670 [ 169.293094] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 169.298617] ? _parse_integer+0x13b/0x190 [ 169.302752] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 169.308273] ? _kstrtoull+0x188/0x250 [ 169.312065] ? _parse_integer+0x190/0x190 [ 169.316200] ? lock_release+0xa30/0xa30 [ 169.320162] ? check_same_owner+0x340/0x340 [ 169.324471] ? __check_object_size+0xa3/0x5d7 [ 169.328954] ? lock_acquire+0x1e4/0x540 [ 169.332915] ? get_pid_task+0xd8/0x1a0 [ 169.336790] ? lock_downgrade+0x8f0/0x8f0 [ 169.340924] ? lock_release+0xa30/0xa30 [ 169.344886] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 169.350407] ? pid_task+0x115/0x200 [ 169.354019] ? find_vpid+0xf0/0xf0 [ 169.357550] ? vmf_insert_mixed_mkwrite+0xa0/0xa0 [ 169.362382] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 169.367907] ? proc_fail_nth_write+0x9e/0x210 [ 169.372388] ? proc_cwd_link+0x1d0/0x1d0 [ 169.376435] ? lock_acquire+0x1e4/0x540 [ 169.380394] ? handle_mm_fault+0x417/0xc80 [ 169.384616] _do_fork+0x291/0x12a0 [ 169.388147] ? fork_idle+0x1a0/0x1a0 [ 169.391846] ? fsnotify_first_mark+0x350/0x350 [ 169.396415] ? __fsnotify_parent+0xcc/0x420 [ 169.400724] ? fsnotify+0x14e0/0x14e0 [ 169.404514] ? __sb_end_write+0xac/0xe0 [ 169.408472] ? vfs_write+0x2ad/0x560 [ 169.412172] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 169.417692] ? ksys_write+0x1ae/0x260 [ 169.421477] ? __ia32_sys_read+0xb0/0xb0 [ 169.425526] __x64_sys_clone+0xbf/0x150 [ 169.429487] do_syscall_64+0x1b9/0x820 [ 169.433365] ? syscall_return_slowpath+0x5e0/0x5e0 [ 169.438281] ? syscall_return_slowpath+0x31d/0x5e0 [ 169.443195] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 169.448199] ? prepare_exit_to_usermode+0x291/0x3b0 [ 169.453200] ? perf_trace_sys_enter+0xb10/0xb10 [ 169.457856] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 169.462686] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 169.467858] RIP: 0033:0x455ab9 [ 169.471046] Code: 1d ba 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 eb b9 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 169.490238] RSP: 002b:00007ffdd193e648 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 [ 169.497932] RAX: ffffffffffffffda RBX: 0000000000b34914 RCX: 0000000000455ab9 [ 169.505186] RDX: 00000000200000c0 RSI: 0000000020000080 RDI: 0000000000000000 [ 169.512437] RBP: 000000000072bea0 R08: 0000000020000180 R09: 0000000000000000 [ 169.519690] R10: 0000000020000040 R11: 0000000000000246 R12: 0000000000000008 [ 169.526945] R13: 00000000004bb85d R14: 00000000004c8d28 R15: 0000000000000037 [ 169.534210] CPU: 0 PID: 4576 Comm: syz-executor1 Not tainted 4.18.0-rc5-next-20180720+ #12 [ 169.542601] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 169.551930] Call Trace: [ 169.554496] dump_stack+0x1c9/0x2b4 [ 169.558106] ? dump_stack_print_info.cold.2+0x52/0x52 [ 169.563277] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 169.568277] should_fail.cold.4+0xa/0x11 [ 169.572326] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 169.577412] ? lock_release+0xa30/0xa30 [ 169.581370] ? kasan_check_read+0x11/0x20 [ 169.585502] ? rcu_is_watching+0x8c/0x150 [ 169.589634] ? rcu_cleanup_dead_rnp+0x200/0x200 [ 169.594307] ? is_bpf_text_address+0xd7/0x170 [ 169.598784] ? kernel_text_address+0x79/0xf0 [ 169.603176] ? __kernel_text_address+0xd/0x40 [ 169.607654] ? unwind_get_return_address+0x61/0xa0 [ 169.612569] ? __save_stack_trace+0x8d/0xf0 [ 169.616876] ? save_stack+0xa9/0xd0 [ 169.620482] ? save_stack+0x43/0xd0 [ 169.624088] ? kasan_kmalloc+0xc4/0xe0 [ 169.627956] __should_failslab+0x124/0x180 [ 169.632170] should_failslab+0x9/0x14 [ 169.635951] kmem_cache_alloc+0x47/0x760 [ 169.639994] ? lock_acquire+0x1e4/0x540 [ 169.643961] ? percpu_ref_put_many+0x119/0x240 [ 169.648528] ? lock_downgrade+0x8f0/0x8f0 [ 169.652661] anon_vma_clone+0x140/0x740 [ 169.656619] ? fs_reclaim_acquire+0x20/0x20 [ 169.660923] ? unlink_anon_vmas+0xa60/0xa60 [ 169.665229] ? dup_userfaultfd+0x775/0x9a0 [ 169.669446] anon_vma_fork+0xf0/0x960 [ 169.673227] ? kasan_unpoison_shadow+0x35/0x50 [ 169.677804] ? anon_vma_clone+0x740/0x740 [ 169.681934] ? kasan_slab_alloc+0x12/0x20 [ 169.686064] ? kmem_cache_alloc+0x2fc/0x760 [ 169.690367] ? __vma_link_rb+0x2a4/0x3f0 [ 169.694411] copy_process.part.41+0x6705/0x73d0 [ 169.699071] ? __cleanup_sighand+0x70/0x70 [ 169.703302] ? lock_release+0xa30/0xa30 [ 169.707258] ? xas_descend+0x20c/0x5f0 [ 169.711128] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 169.716123] ? check_pgprot+0xdf/0x180 [ 169.719991] ? put_page+0x280/0x280 [ 169.723600] ? kasan_check_write+0x14/0x20 [ 169.727816] ? do_raw_spin_lock+0xc1/0x200 [ 169.732034] ? alloc_set_pte+0xaf6/0x1790 [ 169.736171] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 169.741168] ? filemap_map_pages+0xca2/0x1990 [ 169.745645] ? lock_downgrade+0x8f0/0x8f0 [ 169.749775] ? xa_set_tag+0x40/0x40 [ 169.753385] ? do_raw_spin_trylock+0x1c0/0x1c0 [ 169.757961] ? kasan_check_write+0x14/0x20 [ 169.762175] ? do_raw_spin_lock+0xc1/0x200 [ 169.766391] ? trace_hardirqs_on+0x10/0x10 [ 169.770607] ? filemap_map_pages+0xccb/0x1990 [ 169.775088] ? find_get_entries_tag+0x1410/0x1410 [ 169.779917] ? kasan_check_read+0x11/0x20 [ 169.784045] ? do_raw_spin_unlock+0xa7/0x2f0 [ 169.788445] ? do_raw_spin_trylock+0x1c0/0x1c0 [ 169.793008] ? __pte_alloc_kernel+0x2e0/0x2e0 [ 169.797486] ? shrink_dcache_sb+0x350/0x350 [ 169.801789] ? chown_common+0x730/0x730 [ 169.805747] ? do_wp_page+0x435/0x1670 [ 169.809623] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 169.815139] ? _parse_integer+0x13b/0x190 [ 169.819269] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 169.824786] ? _kstrtoull+0x188/0x250 [ 169.828581] ? _parse_integer+0x190/0x190 [ 169.832711] ? lock_release+0xa30/0xa30 [ 169.836665] ? check_same_owner+0x340/0x340 [ 169.840980] ? __check_object_size+0xa3/0x5d7 [ 169.845460] ? lock_acquire+0x1e4/0x540 [ 169.849419] ? get_pid_task+0xd8/0x1a0 [ 169.853292] ? lock_downgrade+0x8f0/0x8f0 [ 169.857444] ? lock_release+0xa30/0xa30 [ 169.861400] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 169.866917] ? pid_task+0x115/0x200 [ 169.870528] ? find_vpid+0xf0/0xf0 [ 169.874052] ? vmf_insert_mixed_mkwrite+0xa0/0xa0 [ 169.878878] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 169.884396] ? proc_fail_nth_write+0x9e/0x210 [ 169.888873] ? proc_cwd_link+0x1d0/0x1d0 [ 169.892916] ? lock_acquire+0x1e4/0x540 [ 169.896870] ? handle_mm_fault+0x417/0xc80 [ 169.901090] _do_fork+0x291/0x12a0 [ 169.904614] ? fork_idle+0x1a0/0x1a0 [ 169.908313] ? fsnotify_first_mark+0x350/0x350 [ 169.912874] ? __fsnotify_parent+0xcc/0x420 [ 169.917178] ? fsnotify+0x14e0/0x14e0 [ 169.920964] ? __sb_end_write+0xac/0xe0 [ 169.924920] ? vfs_write+0x2ad/0x560 [ 169.928616] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 169.934132] ? ksys_write+0x1ae/0x260 [ 169.937914] ? __ia32_sys_read+0xb0/0xb0 [ 169.941959] __x64_sys_clone+0xbf/0x150 [ 169.945918] do_syscall_64+0x1b9/0x820 [ 169.949786] ? syscall_slow_exit_work+0x500/0x500 [ 169.954617] ? syscall_return_slowpath+0x5e0/0x5e0 [ 169.959530] ? syscall_return_slowpath+0x31d/0x5e0 [ 169.964440] ? prepare_exit_to_usermode+0x291/0x3b0 [ 169.969439] ? perf_trace_sys_enter+0xb10/0xb10 [ 169.974092] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 169.978921] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 169.984088] RIP: 0033:0x455ab9 [ 169.987253] Code: 1d ba 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 eb b9 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 170.006421] RSP: 002b:00007fff66d3e588 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 [ 170.014110] RAX: ffffffffffffffda RBX: 0000000000cfa914 RCX: 0000000000455ab9 [ 170.021371] RDX: 00000000200000c0 RSI: 0000000020000080 RDI: 0000000000000000 [ 170.028632] RBP: 000000000072bea0 R08: 0000000020000180 R09: 0000000000000000 [ 170.035891] R10: 0000000020000040 R11: 0000000000000246 R12: 0000000000000008 [ 170.043142] R13: 00000000004bb85d R14: 00000000004c8d28 R15: 0000000000000037 [ 170.050847] Dumping ftrace buffer: [ 170.054369] (ftrace buffer empty) [ 170.058054] Kernel Offset: disabled [ 170.061672] Rebooting in 86400 seconds..