[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 56.190836][ T26] audit: type=1800 audit(1572406387.605:25): pid=8699 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 56.210981][ T26] audit: type=1800 audit(1572406387.615:26): pid=8699 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 56.262063][ T26] audit: type=1800 audit(1572406387.615:27): pid=8699 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.190' (ECDSA) to the list of known hosts. syzkaller login: [ 67.463777][ T8853] FAULT_INJECTION: forcing a failure. [ 67.463777][ T8853] name failslab, interval 1, probability 0, space 0, times 1 [ 67.476605][ T8853] CPU: 0 PID: 8853 Comm: syz-executor355 Not tainted 5.4.0-rc5-next-20191029 #0 [ 67.485624][ T8853] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 67.495660][ T8853] Call Trace: [ 67.498936][ T8853] dump_stack+0x172/0x1f0 [ 67.503255][ T8853] should_fail.cold+0xa/0x15 [ 67.507830][ T8853] ? fault_create_debugfs_attr+0x180/0x180 [ 67.513615][ T8853] ? ___might_sleep+0x163/0x2c0 [ 67.518474][ T8853] __should_failslab+0x121/0x190 [ 67.523441][ T8853] should_failslab+0x9/0x14 [ 67.527924][ T8853] __kmalloc+0x2e0/0x770 [ 67.532151][ T8853] ? tomoyo_unix_entry.cold+0x1f/0x1f [ 67.537503][ T8853] ? __kasan_kmalloc.constprop.0+0xcf/0xe0 [ 67.543291][ T8853] ? tomoyo_encode2.part.0+0xf5/0x400 [ 67.548643][ T8853] tomoyo_encode2.part.0+0xf5/0x400 [ 67.553869][ T8853] ? __kasan_check_read+0x11/0x20 [ 67.558877][ T8853] tomoyo_encode+0x2b/0x50 [ 67.563273][ T8853] tomoyo_realpath_from_path+0x1d3/0x7b0 [ 67.568920][ T8853] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 67.575143][ T8853] tomoyo_check_open_permission+0x2a3/0x3e0 [ 67.581013][ T8853] ? tomoyo_path_number_perm+0x520/0x520 [ 67.586647][ T8853] ? lock_downgrade+0x920/0x920 [ 67.591471][ T8853] ? rwlock_bug.part.0+0x90/0x90 [ 67.596392][ T8853] tomoyo_file_open+0x106/0x150 [ 67.601220][ T8853] security_file_open+0x71/0x300 [ 67.606139][ T8853] do_dentry_open+0x37a/0x1380 [ 67.610887][ T8853] ? chown_common+0x5c0/0x5c0 [ 67.615717][ T8853] ? inode_permission+0xb4/0x520 [ 67.620652][ T8853] vfs_open+0xa0/0xd0 [ 67.624623][ T8853] path_openat+0x10e4/0x4710 [ 67.629322][ T8853] ? __kasan_kmalloc.constprop.0+0xcf/0xe0 [ 67.635260][ T8853] ? kasan_slab_alloc+0xf/0x20 [ 67.640008][ T8853] ? kmem_cache_alloc+0x121/0x710 [ 67.645029][ T8853] ? getname_flags+0xd6/0x5b0 [ 67.649686][ T8853] ? getname+0x1a/0x20 [ 67.653742][ T8853] ? do_sys_open+0x2c9/0x5d0 [ 67.658322][ T8853] ? path_lookupat.isra.0+0x8d0/0x8d0 [ 67.663675][ T8853] ? __alloc_fd+0x487/0x620 [ 67.668198][ T8853] do_filp_open+0x1a1/0x280 [ 67.672680][ T8853] ? may_open_dev+0x100/0x100 [ 67.677340][ T8853] ? __kasan_check_read+0x11/0x20 [ 67.682358][ T8853] ? do_raw_spin_unlock+0x57/0x270 [ 67.687459][ T8853] ? _raw_spin_unlock+0x28/0x40 [ 67.693328][ T8853] ? __alloc_fd+0x487/0x620 [ 67.697815][ T8853] do_sys_open+0x3fe/0x5d0 [ 67.702240][ T8853] ? filp_open+0x80/0x80 [ 67.706513][ T8853] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 67.711947][ T8853] ? do_syscall_64+0x26/0x760 [ 67.716613][ T8853] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 67.722654][ T8853] ? do_syscall_64+0x26/0x760 [ 67.727309][ T8853] __x64_sys_open+0x7e/0xc0 [ 67.731798][ T8853] do_syscall_64+0xfa/0x760 [ 67.736281][ T8853] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 67.742148][ T8853] RIP: 0033:0x401220 [ 67.746050][ T8853] Code: 01 f0 ff ff 0f 83 c0 0b 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 83 3d ad 24 2d 00 00 75 14 b8 02 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 94 0b 00 00 c3 48 83 ec 08 e8 fa 00 00 00 [ 67.765632][ T8853] RSP: 002b:00007ffc5afba8e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 [ 67.774029][ T8853] RAX: ffffffffffffffda RBX: 00007ffc5afba911 RCX: 0000000000401220 [ 67.781974][ T8853] RDX: 00007ffc5afba916 RSI: 0000000000080001 RDI: 00000000004a2688 [ 67.789978][ T8853] RBP: 00007ffc5afba910 R08: 0000000000000000 R09: 0000000000000001 [ 67.797944][ T8853] R10: 0000000000000032 R11: 0000000000000246 R12: 00000000004a2688 [ 67.806563][ T8853] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 executing program executing program executing program executing program executing program executing program [ 67.815121][ T8853] ERROR: Out of memory at tomoyo_realpath_from_path. [ 67.834411][ T8856] FAULT_INJECTION: forcing a failure. [ 67.834411][ T8856] name failslab, interval 1, probability 0, space 0, times 0 [ 67.841581][ T8867] FAULT_INJECTION: forcing a failure. [ 67.841581][ T8867] name failslab, interval 1, probability 0, space 0, times 0 [ 67.847421][ T8858] FAULT_INJECTION: forcing a failure. [ 67.847421][ T8858] name failslab, interval 1, probability 0, space 0, times 0 [ 67.859973][ T8864] FAULT_INJECTION: forcing a failure. [ 67.859973][ T8864] name failslab, interval 1, probability 0, space 0, times 0 [ 67.872606][ T8856] CPU: 1 PID: 8856 Comm: syz-executor355 Not tainted 5.4.0-rc5-next-20191029 #0 [ 67.885379][ T8862] FAULT_INJECTION: forcing a failure. [ 67.885379][ T8862] name failslab, interval 1, probability 0, space 0, times 0 [ 67.894102][ T8856] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 67.894108][ T8856] Call Trace: [ 67.894128][ T8856] dump_stack+0x172/0x1f0 [ 67.894148][ T8856] should_fail.cold+0xa/0x15 [ 67.894164][ T8856] ? fault_create_debugfs_attr+0x180/0x180 [ 67.894184][ T8856] ? ___might_sleep+0x163/0x2c0 [ 67.906921][ T8863] FAULT_INJECTION: forcing a failure. [ 67.906921][ T8863] name failslab, interval 1, probability 0, space 0, times 0 [ 67.916795][ T8856] __should_failslab+0x121/0x190 [ 67.916814][ T8856] should_failslab+0x9/0x14 [ 67.916828][ T8856] kmem_cache_alloc_trace+0x2d3/0x790 [ 67.916852][ T8856] io_wq_create+0x59/0x6b0 [ 67.971501][ T8856] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 67.977769][ T8856] io_uring_setup+0xd83/0x1c40 [ 67.982546][ T8856] ? io_uring_release+0x50/0x50 [ 67.987416][ T8856] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 67.992872][ T8856] ? do_syscall_64+0x26/0x760 [ 67.997547][ T8856] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 68.003611][ T8856] ? do_syscall_64+0x26/0x760 [ 68.008281][ T8856] ? lockdep_hardirqs_on+0x421/0x5e0 [ 68.013559][ T8856] __x64_sys_io_uring_setup+0x54/0x80 [ 68.018923][ T8856] do_syscall_64+0xfa/0x760 [ 68.023421][ T8856] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 68.029302][ T8856] RIP: 0033:0x4413a9 [ 68.033210][ T8856] Code: e8 ac e8 ff ff 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0b 0a fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 68.052894][ T8856] RSP: 002b:00007ffc5afbadf8 EFLAGS: 00000246 ORIG_RAX: 00000000000001a9 [ 68.061300][ T8856] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00000000004413a9 [ 68.069275][ T8856] RDX: 0000000000000001 RSI: 00000000200002c0 RDI: 0000000000000154 [ 68.077243][ T8856] RBP: 00000000006cc018 R08: 0000000000000001 R09: 00000000004002c8 [ 68.085212][ T8856] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000402240 [ 68.093173][ T8856] R13: 00000000004022d0 R14: 0000000000000000 R15: 0000000000000000 [ 68.101165][ T8862] CPU: 0 PID: 8862 Comm: syz-executor355 Not tainted 5.4.0-rc5-next-20191029 #0 [ 68.110196][ T8862] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 68.120267][ T8862] Call Trace: [ 68.123559][ T8862] dump_stack+0x172/0x1f0 [ 68.127973][ T8862] should_fail.cold+0xa/0x15 [ 68.132556][ T8862] ? fault_create_debugfs_attr+0x180/0x180 [ 68.138391][ T8862] ? ___might_sleep+0x163/0x2c0 [ 68.143262][ T8862] __should_failslab+0x121/0x190 [ 68.148193][ T8862] should_failslab+0x9/0x14 [ 68.152696][ T8862] kmem_cache_alloc_trace+0x2d3/0x790 [ 68.158067][ T8862] io_wq_create+0x59/0x6b0 [ 68.162479][ T8862] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 68.169611][ T8862] io_uring_setup+0xd83/0x1c40 [ 68.174375][ T8862] ? io_uring_release+0x50/0x50 [ 68.179235][ T8862] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 68.184689][ T8862] ? do_syscall_64+0x26/0x760 [ 68.189362][ T8862] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 68.195420][ T8862] ? do_syscall_64+0x26/0x760 [ 68.200088][ T8862] ? lockdep_hardirqs_on+0x421/0x5e0 [ 68.205368][ T8862] __x64_sys_io_uring_setup+0x54/0x80 [ 68.210736][ T8862] do_syscall_64+0xfa/0x760 [ 68.215254][ T8862] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 68.221136][ T8862] RIP: 0033:0x4413a9 [ 68.225026][ T8862] Code: e8 ac e8 ff ff 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0b 0a fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 68.244625][ T8862] RSP: 002b:00007ffc5afbadf8 EFLAGS: 00000246 ORIG_RAX: 00000000000001a9 [ 68.253032][ T8862] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00000000004413a9 [ 68.261004][ T8862] RDX: 0000000000000001 RSI: 00000000200002c0 RDI: 0000000000000154 [ 68.268966][ T8862] RBP: 00000000006cc018 R08: 0000000000000001 R09: 00000000004002c8 [ 68.276930][ T8862] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000402240 [ 68.284896][ T8862] R13: 00000000004022d0 R14: 0000000000000000 R15: 0000000000000000 [ 68.292886][ T8858] CPU: 1 PID: 8858 Comm: syz-executor355 Not tainted 5.4.0-rc5-next-20191029 #0 [ 68.301915][ T8858] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 68.311968][ T8858] Call Trace: [ 68.315256][ T8858] dump_stack+0x172/0x1f0 [ 68.319586][ T8858] should_fail.cold+0xa/0x15 [ 68.324174][ T8858] ? fault_create_debugfs_attr+0x180/0x180 [ 68.329975][ T8858] ? ___might_sleep+0x163/0x2c0 [ 68.334822][ T8858] __should_failslab+0x121/0x190 [ 68.339756][ T8858] should_failslab+0x9/0x14 [ 68.344255][ T8858] kmem_cache_alloc_trace+0x2d3/0x790 [ 68.349631][ T8858] io_wq_create+0x59/0x6b0 [ 68.354053][ T8858] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 68.360294][ T8858] io_uring_setup+0xd83/0x1c40 [ 68.365056][ T8858] ? io_uring_release+0x50/0x50 [ 68.369911][ T8858] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 68.375368][ T8858] ? do_syscall_64+0x26/0x760 [ 68.380048][ T8858] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 68.386105][ T8858] ? do_syscall_64+0x26/0x760 [ 68.390781][ T8858] ? lockdep_hardirqs_on+0x421/0x5e0 [ 68.396062][ T8858] __x64_sys_io_uring_setup+0x54/0x80 [ 68.401431][ T8858] do_syscall_64+0xfa/0x760 [ 68.405935][ T8858] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 68.411821][ T8858] RIP: 0033:0x4413a9 [ 68.415798][ T8858] Code: e8 ac e8 ff ff 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0b 0a fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 68.435392][ T8858] RSP: 002b:00007ffc5afbadf8 EFLAGS: 00000246 ORIG_RAX: 00000000000001a9 [ 68.443880][ T8858] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00000000004413a9 [ 68.451842][ T8858] RDX: 0000000000000001 RSI: 00000000200002c0 RDI: 0000000000000154 [ 68.459805][ T8858] RBP: 00000000006cc018 R08: 0000000000000001 R09: 00000000004002c8 [ 68.467779][ T8858] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000402240 [ 68.475743][ T8858] R13: 00000000004022d0 R14: 0000000000000000 R15: 0000000000000000 [ 68.483727][ T8867] CPU: 0 PID: 8867 Comm: syz-executor355 Not tainted 5.4.0-rc5-next-20191029 #0 [ 68.492779][ T8867] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 68.502826][ T8867] Call Trace: [ 68.506132][ T8867] dump_stack+0x172/0x1f0 [ 68.510457][ T8867] should_fail.cold+0xa/0x15 [ 68.515039][ T8867] ? fault_create_debugfs_attr+0x180/0x180 [ 68.520839][ T8867] ? ___might_sleep+0x163/0x2c0 [ 68.525696][ T8867] __should_failslab+0x121/0x190 [ 68.530626][ T8867] should_failslab+0x9/0x14 [ 68.535117][ T8867] kmem_cache_alloc_trace+0x2d3/0x790 [ 68.540487][ T8867] io_wq_create+0x59/0x6b0 [ 68.544895][ T8867] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 68.551128][ T8867] io_uring_setup+0xd83/0x1c40 [ 68.555887][ T8867] ? io_uring_release+0x50/0x50 [ 68.560748][ T8867] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 68.566198][ T8867] ? do_syscall_64+0x26/0x760 [ 68.570872][ T8867] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 68.576928][ T8867] ? do_syscall_64+0x26/0x760 [ 68.581600][ T8867] ? lockdep_hardirqs_on+0x421/0x5e0 [ 68.586890][ T8867] __x64_sys_io_uring_setup+0x54/0x80 [ 68.592258][ T8867] do_syscall_64+0xfa/0x760 [ 68.596759][ T8867] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 68.602640][ T8867] RIP: 0033:0x4413a9 [ 68.606545][ T8867] Code: e8 ac e8 ff ff 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0b 0a fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 68.626155][ T8867] RSP: 002b:00007ffc5afbadf8 EFLAGS: 00000246 ORIG_RAX: 00000000000001a9 [ 68.626236][ T8856] BUG: unable to handle page fault for address: fffffc0000000000 [ 68.634575][ T8867] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00000000004413a9 [ 68.642289][ T8856] #PF: supervisor read access in kernel mode [ 68.650243][ T8867] RDX: 0000000000000001 RSI: 00000000200002c0 RDI: 0000000000000154 [ 68.656190][ T8856] #PF: error_code(0x0000) - not-present page [ 68.664145][ T8867] RBP: 00000000006cc018 R08: 0000000000000001 R09: 00000000004002c8 [ 68.670089][ T8856] PGD 0 P4D 0 [ 68.678036][ T8867] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000402240 [ 68.681383][ T8856] Oops: 0000 [#1] PREEMPT SMP KASAN [ 68.689328][ T8867] R13: 00000000004022d0 R14: 0000000000000000 R15: 0000000000000000 [ 68.694503][ T8856] CPU: 1 PID: 8856 Comm: syz-executor355 Not tainted 5.4.0-rc5-next-20191029 #0 [ 68.706344][ T8863] CPU: 0 PID: 8863 Comm: syz-executor355 Not tainted 5.4.0-rc5-next-20191029 #0 [ 68.714993][ T8856] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 68.723985][ T8863] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 68.734028][ T8856] RIP: 0010:check_memory_region+0x123/0x1a0 [ 68.744044][ T8863] Call Trace: [ 68.749915][ T8856] Code: 49 89 d9 49 29 c1 e9 68 ff ff ff 5b b8 01 00 00 00 41 5c 41 5d 5d c3 4d 85 c9 74 ef 4d 01 e1 eb 09 48 83 c0 01 4c 39 c8 74 e1 <80> 38 00 74 f2 eb 8c 4d 39 c2 74 4d e8 8c e4 ff ff 31 c0 5b 41 5c [ 68.753174][ T8863] dump_stack+0x172/0x1f0 [ 68.772745][ T8856] RSP: 0018:ffff888090717b30 EFLAGS: 00010216 [ 68.777659][ T8863] should_fail.cold+0xa/0x15 [ 68.783699][ T8856] RAX: fffffc0000000000 RBX: dffffc0000000001 RCX: ffffffff81d256a8 [ 68.788265][ T8863] ? fault_create_debugfs_attr+0x180/0x180 [ 68.796219][ T8856] RDX: 0000000000000001 RSI: 0000000000000008 RDI: fffffffffffffffc [ 68.802037][ T8863] ? ___might_sleep+0x163/0x2c0 [ 68.809982][ T8856] RBP: ffff888090717b48 R08: 1fffffffffffffff R09: dffffc0000000001 [ 68.814812][ T8863] __should_failslab+0x121/0x190 [ 68.822742][ T8856] R10: dffffc0000000000 R11: 0000000000000003 R12: fffffbffffffffff [ 68.822754][ T8856] R13: ffff8880a0f685c0 R14: ffff8880a4146458 R15: 0000000000000000 [ 68.827666][ T8863] should_failslab+0x9/0x14 [ 68.835616][ T8856] FS: 0000000001f6c880(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 68.843564][ T8863] kmem_cache_alloc_trace+0x2d3/0x790 [ 68.848049][ T8856] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 68.856956][ T8863] io_wq_create+0x59/0x6b0 [ 68.862295][ T8856] CR2: fffffc0000000000 CR3: 00000000a0083000 CR4: 00000000001406e0 [ 68.868858][ T8863] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 68.873240][ T8856] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 68.881189][ T8863] io_uring_setup+0xd83/0x1c40 [ 68.887404][ T8856] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 68.895356][ T8863] ? io_uring_release+0x50/0x50 [ 68.900087][ T8856] Call Trace: [ 68.908044][ T8863] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 68.912866][ T8856] __kasan_check_write+0x14/0x20 [ 68.916156][ T8863] ? do_syscall_64+0x26/0x760 [ 68.921588][ T8856] io_wq_cancel_all+0x28/0x2a0 [ 68.926510][ T8863] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 68.931154][ T8856] io_uring_flush+0x35a/0x4e0 [ 68.935900][ T8863] ? do_syscall_64+0x26/0x760 [ 68.941939][ T8856] ? io_wake_function+0x260/0x260 [ 68.946603][ T8863] ? lockdep_hardirqs_on+0x421/0x5e0 [ 68.951249][ T8856] ? kick_process+0xef/0x180 [ 68.956242][ T8863] __x64_sys_io_uring_setup+0x54/0x80 [ 68.961539][ T8856] ? finish_wait+0x260/0x260 [ 68.966113][ T8863] do_syscall_64+0xfa/0x760 [ 68.971454][ T8856] ? io_wake_function+0x260/0x260 [ 68.976033][ T8863] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 68.980512][ T8856] filp_close+0xbd/0x170 [ 68.985510][ T8863] RIP: 0033:0x4413a9 [ 68.991378][ T8856] put_files_struct+0x1d7/0x2f0 [ 68.995605][ T8863] Code: e8 ac e8 ff ff 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0b 0a fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 68.999471][ T8856] exit_files+0x83/0xb0 [ 69.004283][ T8863] RSP: 002b:00007ffc5afbadf8 EFLAGS: 00000246 ORIG_RAX: 00000000000001a9 [ 69.023902][ T8856] do_exit+0x8d2/0x2e60 [ 69.028041][ T8863] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00000000004413a9 [ 69.044505][ T8856] ? mm_update_next_owner+0x640/0x640 [ 69.048635][ T8863] RDX: 0000000000000001 RSI: 00000000200002c0 RDI: 0000000000000154 [ 69.056595][ T8856] ? down_read_non_owner+0x490/0x490 [ 69.061943][ T8863] RBP: 00000000006cc018 R08: 0000000000000001 R09: 00000000004002c8 [ 69.069899][ T8856] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 69.075146][ T8863] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000402240 [ 69.083099][ T8856] ? handle_mm_fault+0x4ab/0xa90 [ 69.089300][ T8863] R13: 00000000004022d0 R14: 0000000000000000 R15: 0000000000000000 [ 69.097260][ T8856] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 69.115590][ T8856] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 69.121029][ T8856] do_group_exit+0x135/0x360 [ 69.125599][ T8856] __x64_sys_exit_group+0x44/0x50 [ 69.130600][ T8856] do_syscall_64+0xfa/0x760 [ 69.135084][ T8856] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 69.140963][ T8856] RIP: 0033:0x440018 [ 69.144838][ T8856] Code: 00 00 be 3c 00 00 00 eb 19 66 0f 1f 84 00 00 00 00 00 48 89 d7 89 f0 0f 05 48 3d 00 f0 ff ff 77 21 f4 48 89 d7 44 89 c0 0f 05 <48> 3d 00 f0 ff ff 76 e0 f7 d8 64 41 89 01 eb d8 0f 1f 84 00 00 00 [ 69.164428][ T8856] RSP: 002b:00007ffc5afbadb8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 69.172814][ T8856] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000440018 [ 69.180765][ T8856] RDX: 0000000000000000 RSI: 000000000000003c RDI: 0000000000000000 [ 69.188717][ T8856] RBP: 00000000004bfcf0 R08: 00000000000000e7 R09: ffffffffffffffd0 [ 69.196673][ T8856] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 [ 69.204627][ T8856] R13: 00000000006d2180 R14: 0000000000000000 R15: 0000000000000000 [ 69.212581][ T8856] Modules linked in: [ 69.216455][ T8856] CR2: fffffc0000000000 [ 69.220593][ T8856] ---[ end trace 3dc71453331dd723 ]--- [ 69.220597][ T8862] BUG: unable to handle page fault for address: fffffc0000000000 [ 69.220608][ T8862] #PF: supervisor read access in kernel mode [ 69.226067][ T8856] RIP: 0010:check_memory_region+0x123/0x1a0 [ 69.233747][ T8862] #PF: error_code(0x0000) - not-present page [ 69.233754][ T8862] PGD 0 P4D 0 [ 69.239727][ T8856] Code: 49 89 d9 49 29 c1 e9 68 ff ff ff 5b b8 01 00 00 00 41 5c 41 5d 5d c3 4d 85 c9 74 ef 4d 01 e1 eb 09 48 83 c0 01 4c 39 c8 74 e1 <80> 38 00 74 f2 eb 8c 4d 39 c2 74 4d e8 8c e4 ff ff 31 c0 5b 41 5c [ 69.245587][ T8862] Oops: 0000 [#2] PREEMPT SMP KASAN [ 69.251887][ T8856] RSP: 0018:ffff888090717b30 EFLAGS: 00010216 [ 69.255236][ T8862] CPU: 0 PID: 8862 Comm: syz-executor355 Tainted: G D 5.4.0-rc5-next-20191029 #0 [ 69.275003][ T8856] RAX: fffffc0000000000 RBX: dffffc0000000001 RCX: ffffffff81d256a8 [ 69.280182][ T8862] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 69.286211][ T8856] RDX: 0000000000000001 RSI: 0000000000000008 RDI: fffffffffffffffc [ 69.286223][ T8856] RBP: ffff888090717b48 R08: 1fffffffffffffff R09: dffffc0000000001 [ 69.296627][ T8862] RIP: 0010:check_memory_region+0x123/0x1a0 [ 69.304561][ T8856] R10: dffffc0000000000 R11: 0000000000000003 R12: fffffbffffffffff [ 69.314594][ T8862] Code: 49 89 d9 49 29 c1 e9 68 ff ff ff 5b b8 01 00 00 00 41 5c 41 5d 5d c3 4d 85 c9 74 ef 4d 01 e1 eb 09 48 83 c0 01 4c 39 c8 74 e1 <80> 38 00 74 f2 eb 8c 4d 39 c2 74 4d e8 8c e4 ff ff 31 c0 5b 41 5c [ 69.322537][ T8856] R13: ffff8880a0f685c0 R14: ffff8880a4146458 R15: 0000000000000000 [ 69.330492][ T8862] RSP: 0018:ffff88809212fb30 EFLAGS: 00010216 [ 69.336366][ T8856] FS: 0000000001f6c880(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 69.344310][ T8862] RAX: fffffc0000000000 RBX: dffffc0000000001 RCX: ffffffff81d256a8 [ 69.363895][ T8856] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 69.371850][ T8862] RDX: 0000000000000001 RSI: 0000000000000008 RDI: fffffffffffffffc [ 69.377884][ T8856] CR2: fffffc0000000000 CR3: 00000000a0083000 CR4: 00000000001406e0 [ 69.386784][ T8862] RBP: ffff88809212fb48 R08: 1fffffffffffffff R09: dffffc0000000001 [ 69.394729][ T8856] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 69.401286][ T8862] R10: dffffc0000000000 R11: 0000000000000003 R12: fffffbffffffffff [ 69.409231][ T8856] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 69.417193][ T8862] R13: ffff88808dea8140 R14: ffff888094f76458 R15: 0000000000000000 [ 69.425139][ T8856] Kernel panic - not syncing: Fatal exception [ 69.433091][ T8862] FS: 0000000000000000(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 69.471858][ T8862] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 69.478423][ T8862] CR2: fffffc0000000000 CR3: 0000000008e6d000 CR4: 00000000001406f0 [ 69.486386][ T8862] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 69.495309][ T8862] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 69.503269][ T8862] Call Trace: [ 69.506559][ T8862] __kasan_check_write+0x14/0x20 [ 69.511482][ T8862] io_wq_cancel_all+0x28/0x2a0 [ 69.516234][ T8862] io_uring_flush+0x35a/0x4e0 [ 69.521078][ T8862] ? io_wake_function+0x260/0x260 [ 69.526171][ T8862] ? kick_process+0xef/0x180 [ 69.530747][ T8862] ? finish_wait+0x260/0x260 [ 69.535337][ T8862] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 69.541559][ T8862] ? fput_many+0x12c/0x1a0 [ 69.545959][ T8862] ? io_wake_function+0x260/0x260 [ 69.550966][ T8862] filp_close+0xbd/0x170 [ 69.555192][ T8862] put_files_struct+0x1d7/0x2f0 [ 69.560037][ T8862] exit_files+0x83/0xb0 [ 69.564175][ T8862] do_exit+0x8d2/0x2e60 [ 69.568320][ T8862] ? mm_update_next_owner+0x640/0x640 [ 69.573707][ T8862] ? down_read_non_owner+0x490/0x490 [ 69.579172][ T8862] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 69.585404][ T8862] ? handle_mm_fault+0x4ab/0xa90 [ 69.590332][ T8862] do_group_exit+0x135/0x360 [ 69.594907][ T8862] __x64_sys_exit_group+0x44/0x50 [ 69.599911][ T8862] do_syscall_64+0xfa/0x760 [ 69.604401][ T8862] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 69.610271][ T8862] RIP: 0033:0x440018 [ 69.614168][ T8862] Code: Bad RIP value. [ 69.618213][ T8862] RSP: 002b:00007ffc5afbadb8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 69.626603][ T8862] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000440018 [ 69.634554][ T8862] RDX: 0000000000000000 RSI: 000000000000003c RDI: 0000000000000000 [ 69.643114][ T8862] RBP: 00000000004bfcf0 R08: 00000000000000e7 R09: ffffffffffffffd0 [ 69.651089][ T8862] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 [ 69.659042][ T8862] R13: 00000000006d2180 R14: 0000000000000000 R15: 0000000000000000 [ 69.667006][ T8862] Modules linked in: [ 69.670882][ T8862] CR2: fffffc0000000000 [ 69.675016][ T8862] ---[ end trace 3dc71453331dd724 ]--- [ 69.680461][ T8862] RIP: 0010:check_memory_region+0x123/0x1a0 [ 69.686349][ T8862] Code: 49 89 d9 49 29 c1 e9 68 ff ff ff 5b b8 01 00 00 00 41 5c 41 5d 5d c3 4d 85 c9 74 ef 4d 01 e1 eb 09 48 83 c0 01 4c 39 c8 74 e1 <80> 38 00 74 f2 eb 8c 4d 39 c2 74 4d e8 8c e4 ff ff 31 c0 5b 41 5c [ 69.706291][ T8862] RSP: 0018:ffff888090717b30 EFLAGS: 00010216 [ 69.712511][ T8862] RAX: fffffc0000000000 RBX: dffffc0000000001 RCX: ffffffff81d256a8 [ 69.720475][ T8862] RDX: 0000000000000001 RSI: 0000000000000008 RDI: fffffffffffffffc [ 69.728425][ T8862] RBP: ffff888090717b48 R08: 1fffffffffffffff R09: dffffc0000000001 [ 69.736376][ T8862] R10: dffffc0000000000 R11: 0000000000000003 R12: fffffbffffffffff [ 69.744331][ T8862] R13: ffff8880a0f685c0 R14: ffff8880a4146458 R15: 0000000000000000 [ 69.752294][ T8862] FS: 0000000000000000(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 69.761205][ T8862] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 69.767778][ T8862] CR2: 000000000043ffee CR3: 0000000008e6d000 CR4: 00000000001406f0 [ 69.775733][ T8862] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 69.783687][ T8862] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 70.540479][ T8856] Shutting down cpus with NMI [ 70.546503][ T8856] Kernel Offset: disabled [ 70.550824][ T8856] Rebooting in 86400 seconds..