[....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[ 19.077240] random: sshd: uninitialized urandom read (32 bytes read) [?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 23.433141] random: sshd: uninitialized urandom read (32 bytes read) [ 23.881692] random: sshd: uninitialized urandom read (32 bytes read) [ 24.627406] random: sshd: uninitialized urandom read (32 bytes read) [ 43.268425] random: sshd: uninitialized urandom read (32 bytes read) Warning: Permanently added '10.128.0.20' (ECDSA) to the list of known hosts. [ 48.757999] random: sshd: uninitialized urandom read (32 bytes read) [ 48.872886] IPVS: ftp: loaded support on port[0] = 21 [ 48.874425] IPVS: ftp: loaded support on port[0] = 21 [ 48.881488] IPVS: ftp: loaded support on port[0] = 21 [ 48.885724] IPVS: ftp: loaded support on port[0] = 21 [ 48.891698] IPVS: ftp: loaded support on port[0] = 21 [ 48.897575] IPVS: ftp: loaded support on port[0] = 21 [ 48.904807] IPVS: ftp: loaded support on port[0] = 21 [ 48.910703] IPVS: ftp: loaded support on port[0] = 21 [ 49.115557] FAULT_INJECTION: forcing a failure. [ 49.115557] name failslab, interval 1, probability 0, space 0, times 1 [ 49.117900] FAULT_INJECTION: forcing a failure. [ 49.117900] name failslab, interval 1, probability 0, space 0, times 1 [ 49.126947] CPU: 0 PID: 4457 Comm: syz-executor152 Not tainted 4.17.0-rc3+ #32 [ 49.145449] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 49.154802] Call Trace: [ 49.157387] dump_stack+0x1b9/0x294 [ 49.161003] ? dump_stack_print_info.cold.2+0x52/0x52 [ 49.166181] ? lockdep_init_map+0x9/0x10 [ 49.170231] should_fail.cold.4+0xa/0x1a [ 49.174274] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 49.179363] ? graph_lock+0x170/0x170 [ 49.183143] ? find_held_lock+0x36/0x1c0 [ 49.187186] ? find_held_lock+0x36/0x1c0 [ 49.191230] ? __lock_is_held+0xb5/0x140 [ 49.195280] ? check_same_owner+0x320/0x320 [ 49.199581] ? make_kgid+0x23/0x30 [ 49.203105] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 49.208623] ? rcu_note_context_switch+0x710/0x710 [ 49.213538] __should_failslab+0x124/0x180 [ 49.217755] should_failslab+0x9/0x14 [ 49.221536] kmem_cache_alloc+0x2af/0x760 [ 49.225665] ? do_raw_spin_trylock+0x1b0/0x1b0 [ 49.230229] ? kasan_check_write+0x14/0x20 [ 49.234444] ? do_raw_spin_lock+0xc1/0x200 [ 49.238664] __d_alloc+0xc0/0xd30 [ 49.242097] ? fuse_iget+0x1dd/0x820 [ 49.245795] ? shrink_dcache_for_umount+0x290/0x290 [ 49.250799] ? fuse_change_attributes+0x810/0x810 [ 49.255626] ? _raw_spin_unlock+0x22/0x30 [ 49.259758] ? fuse_get_root_inode+0x121/0x190 [ 49.264320] ? fuse_iget+0x820/0x820 [ 49.268018] d_make_root+0x42/0x90 [ 49.271541] fuse_fill_super+0x120e/0x1e20 [ 49.275773] ? fuse_get_root_inode+0x190/0x190 [ 49.280337] ? __alloc_pages_slowpath+0x2db0/0x2db0 [ 49.285337] ? kasan_check_read+0x11/0x20 [ 49.289467] ? cap_capable+0x1f9/0x260 [ 49.293336] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 49.298854] ? security_capable+0x99/0xc0 [ 49.302991] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 49.308509] ? ns_capable_common+0x13f/0x170 [ 49.312900] ? get_anon_bdev+0x2f0/0x2f0 [ 49.316943] ? sget+0x113/0x150 [ 49.320205] ? fuse_get_root_inode+0x190/0x190 [ 49.324770] mount_nodev+0x6b/0x110 [ 49.328378] fuse_mount+0x2c/0x40 [ 49.331812] mount_fs+0xae/0x328 [ 49.335161] vfs_kern_mount.part.34+0xd4/0x4d0 [ 49.339725] ? may_umount+0xb0/0xb0 [ 49.343342] ? _raw_read_unlock+0x22/0x30 [ 49.347470] ? __get_fs_type+0x97/0xc0 [ 49.351340] do_mount+0x564/0x3070 [ 49.354862] ? do_raw_spin_unlock+0x9e/0x2e0 [ 49.359251] ? copy_mount_string+0x40/0x40 [ 49.363471] ? rcu_pm_notify+0xc0/0xc0 [ 49.367345] ? copy_mount_options+0x5f/0x380 [ 49.371732] ? rcu_read_lock_sched_held+0x108/0x120 [ 49.376730] ? kmem_cache_alloc_trace+0x616/0x780 [ 49.381557] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 49.387081] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 49.392622] ? copy_mount_options+0x285/0x380 [ 49.397101] ksys_mount+0x12d/0x140 [ 49.400710] __x64_sys_mount+0xbe/0x150 [ 49.404665] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 49.409668] do_syscall_64+0x1b1/0x800 [ 49.413538] ? finish_task_switch+0x1ca/0x810 [ 49.418015] ? syscall_return_slowpath+0x5c0/0x5c0 [ 49.422927] ? syscall_return_slowpath+0x30f/0x5c0 [ 49.427839] ? entry_SYSCALL_64_after_hwframe+0x59/0xbe [ 49.433187] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 49.438013] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 49.443183] RIP: 0033:0x447cd9 [ 49.446352] RSP: 002b:00007fbb431e0828 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 49.454050] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 0000000000447cd9 [ 49.461297] RDX: 00000000004b08f6 RSI: 0000000020000100 RDI: 00000000004c74a5 [ 49.468545] RBP: 000000000000c000 R08: 00007fbb431e0840 R09: 0000000000000000 [ 49.475805] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 49.483065] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 49.490338] CPU: 1 PID: 4459 Comm: syz-executor152 Not tainted 4.17.0-rc3+ #32 [ 49.492350] FAULT_INJECTION: forcing a failure. [ 49.492350] name failslab, interval 1, probability 0, space 0, times 0 [ 49.497720] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 49.497726] Call Trace: [ 49.497748] dump_stack+0x1b9/0x294 [ 49.497759] ? dump_stack_print_info.cold.2+0x52/0x52 [ 49.497769] ? _raw_spin_unlock_irqrestore+0x74/0xc0 [ 49.497786] should_fail.cold.4+0xa/0x1a [ 49.497802] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 49.543875] ? save_stack+0xa9/0xd0 [ 49.547484] ? save_stack+0x43/0xd0 [ 49.551093] ? kasan_kmalloc+0xc4/0xe0 [ 49.554964] ? kasan_slab_alloc+0x12/0x20 [ 49.559095] ? graph_lock+0x170/0x170 [ 49.562889] ? mount_nodev+0x6b/0x110 [ 49.566669] ? fuse_mount+0x2c/0x40 [ 49.570276] ? mount_fs+0xae/0x328 [ 49.573796] ? vfs_kern_mount.part.34+0xd4/0x4d0 [ 49.578529] ? do_mount+0x564/0x3070 [ 49.582221] ? ksys_mount+0x12d/0x140 [ 49.586003] ? find_held_lock+0x36/0x1c0 [ 49.590057] ? __lock_is_held+0xb5/0x140 [ 49.594107] ? check_same_owner+0x320/0x320 [ 49.598413] ? rcu_note_context_switch+0x710/0x710 [ 49.603325] __should_failslab+0x124/0x180 [ 49.607542] should_failslab+0x9/0x14 [ 49.611332] kmem_cache_alloc_trace+0x2cb/0x780 [ 49.615982] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 49.620993] ? __lockdep_init_map+0x105/0x590 [ 49.625470] fuse_dentry_init+0x45/0xa0 [ 49.629426] ? fuse_create+0x30/0x30 [ 49.633123] __d_alloc+0x6f8/0xd30 [ 49.636644] ? shrink_dcache_for_umount+0x290/0x290 [ 49.641644] ? fuse_change_attributes+0x810/0x810 [ 49.646474] ? _raw_spin_unlock+0x22/0x30 [ 49.650608] ? fuse_get_root_inode+0x121/0x190 [ 49.655178] ? fuse_iget+0x820/0x820 [ 49.658891] d_make_root+0x42/0x90 [ 49.662417] fuse_fill_super+0x120e/0x1e20 [ 49.666649] ? fuse_get_root_inode+0x190/0x190 [ 49.671215] ? __alloc_pages_slowpath+0x2db0/0x2db0 [ 49.676213] ? kasan_check_read+0x11/0x20 [ 49.680343] ? cap_capable+0x1f9/0x260 [ 49.684238] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 49.689769] ? security_capable+0x99/0xc0 [ 49.693900] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 49.699419] ? ns_capable_common+0x13f/0x170 [ 49.703810] ? get_anon_bdev+0x2f0/0x2f0 [ 49.707853] ? sget+0x113/0x150 [ 49.711113] ? fuse_get_root_inode+0x190/0x190 [ 49.715677] mount_nodev+0x6b/0x110 [ 49.719285] fuse_mount+0x2c/0x40 [ 49.722721] mount_fs+0xae/0x328 [ 49.726070] vfs_kern_mount.part.34+0xd4/0x4d0 [ 49.730632] ? may_umount+0xb0/0xb0 [ 49.734242] ? _raw_read_unlock+0x22/0x30 [ 49.738372] ? __get_fs_type+0x97/0xc0 [ 49.742245] do_mount+0x564/0x3070 [ 49.745769] ? copy_mount_string+0x40/0x40 [ 49.749997] ? rcu_pm_notify+0xc0/0xc0 [ 49.753868] ? copy_mount_options+0x5f/0x380 [ 49.758256] ? rcu_read_lock_sched_held+0x108/0x120 [ 49.763254] ? kmem_cache_alloc_trace+0x616/0x780 [ 49.768168] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 49.773685] ? copy_mount_options+0x285/0x380 [ 49.778165] ksys_mount+0x12d/0x140 [ 49.781774] __x64_sys_mount+0xbe/0x150 [ 49.785735] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 49.790747] do_syscall_64+0x1b1/0x800 [ 49.794617] ? finish_task_switch+0x1ca/0x810 [ 49.799104] ? syscall_return_slowpath+0x5c0/0x5c0 [ 49.804014] ? syscall_return_slowpath+0x30f/0x5c0 [ 49.808927] ? entry_SYSCALL_64_after_hwframe+0x59/0xbe [ 49.814282] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 49.819107] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 49.824278] RIP: 0033:0x447cd9 [ 49.827448] RSP: 002b:00007fbb431e0828 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 49.835136] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 0000000000447cd9 [ 49.842386] RDX: 00000000004b08f6 RSI: 0000000020000100 RDI: 00000000004c74a5 [ 49.849635] RBP: 000000000000c000 R08: 00007fbb431e0840 R09: 0000000000000000 [ 49.856885] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 49.864137] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 49.871407] CPU: 0 PID: 4452 Comm: syz-executor152 Not tainted 4.17.0-rc3+ #32 [ 49.874541] FAULT_INJECTION: forcing a failure. [ 49.874541] name failslab, interval 1, probability 0, space 0, times 0 [ 49.878789] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 49.878794] Call Trace: [ 49.878813] dump_stack+0x1b9/0x294 [ 49.878824] ? dump_stack_print_info.cold.2+0x52/0x52 [ 49.878836] ? trace_hardirqs_on+0xd/0x10 [ 49.878856] should_fail.cold.4+0xa/0x1a [ 49.918910] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 49.924003] ? graph_lock+0x170/0x170 [ 49.927795] ? graph_lock+0x170/0x170 [ 49.931580] ? lock_downgrade+0x8e0/0x8e0 [ 49.935709] ? find_held_lock+0x36/0x1c0 [ 49.939765] ? check_same_owner+0x320/0x320 [ 49.944070] ? do_raw_spin_unlock+0x9e/0x2e0 [ 49.948472] ? rcu_note_context_switch+0x710/0x710 [ 49.953389] __should_failslab+0x124/0x180 [ 49.957615] should_failslab+0x9/0x14 [ 49.961400] __kmalloc_track_caller+0x2c4/0x760 [ 49.966056] ? may_umount+0xb0/0xb0 [ 49.969668] ? do_mount+0x25e7/0x3070 [ 49.973459] kstrdup+0x39/0x70 [ 49.976634] do_mount+0x25e7/0x3070 [ 49.980245] ? copy_mount_string+0x40/0x40 [ 49.984467] ? rcu_pm_notify+0xc0/0xc0 [ 49.988341] ? copy_mount_options+0x5f/0x380 [ 49.992733] ? rcu_read_lock_sched_held+0x108/0x120 [ 49.997749] ? kmem_cache_alloc_trace+0x616/0x780 [ 50.002575] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 50.008106] ? _copy_from_user+0xdf/0x150 [ 50.012240] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 50.017758] ? copy_mount_options+0x285/0x380 [ 50.022237] ksys_mount+0x12d/0x140 [ 50.025847] __x64_sys_mount+0xbe/0x150 [ 50.029805] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 50.034812] do_syscall_64+0x1b1/0x800 [ 50.038684] ? finish_task_switch+0x1ca/0x810 [ 50.043180] ? syscall_return_slowpath+0x5c0/0x5c0 [ 50.048099] ? syscall_return_slowpath+0x30f/0x5c0 [ 50.053031] ? entry_SYSCALL_64_after_hwframe+0x59/0xbe [ 50.058381] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 50.063209] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 50.068378] RIP: 0033:0x447cd9 [ 50.071548] RSP: 002b:00007fbb431e0828 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 50.079241] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 0000000000447cd9 [ 50.086491] RDX: 00000000004b08f6 RSI: 0000000020000100 RDI: 00000000004c74a5 [ 50.093761] RBP: 000000000000c000 R08: 00007fbb431e0840 R09: 0000000000000000 [ 50.101013] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 50.108265] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 50.115538] CPU: 1 PID: 4461 Comm: syz-executor152 Not tainted 4.17.0-rc3+ #32 [ 50.118890] FAULT_INJECTION: forcing a failure. [ 50.118890] name failslab, interval 1, probability 0, space 0, times 0 [ 50.122929] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 50.122934] Call Trace: [ 50.122958] dump_stack+0x1b9/0x294 [ 50.122969] ? dump_stack_print_info.cold.2+0x52/0x52 [ 50.122982] ? lockdep_init_map+0x9/0x10 [ 50.123003] should_fail.cold.4+0xa/0x1a [ 50.162942] ? do_raw_write_unlock.cold.8+0x3d/0x3d [ 50.167949] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 50.173036] ? graph_lock+0x170/0x170 [ 50.176828] ? find_held_lock+0x36/0x1c0 [ 50.180874] ? find_held_lock+0x36/0x1c0 [ 50.184919] ? __lock_is_held+0xb5/0x140 [ 50.188982] ? check_same_owner+0x320/0x320 [ 50.193297] ? make_kgid+0x23/0x30 [ 50.196848] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 50.202371] ? rcu_note_context_switch+0x710/0x710 [ 50.207287] __should_failslab+0x124/0x180 [ 50.211531] should_failslab+0x9/0x14 [ 50.215327] kmem_cache_alloc+0x2af/0x760 [ 50.219459] ? do_raw_spin_trylock+0x1b0/0x1b0 [ 50.224027] ? kasan_check_write+0x14/0x20 [ 50.228246] ? do_raw_spin_lock+0xc1/0x200 [ 50.232467] __d_alloc+0xc0/0xd30 [ 50.235907] ? fuse_iget+0x1dd/0x820 [ 50.239617] ? shrink_dcache_for_umount+0x290/0x290 [ 50.244618] ? fuse_change_attributes+0x810/0x810 [ 50.249450] ? _raw_spin_unlock+0x22/0x30 [ 50.253589] ? fuse_get_root_inode+0x121/0x190 [ 50.258155] ? fuse_iget+0x820/0x820 [ 50.261867] d_make_root+0x42/0x90 [ 50.265394] fuse_fill_super+0x120e/0x1e20 [ 50.269616] ? fuse_get_root_inode+0x190/0x190 [ 50.274185] ? __alloc_pages_slowpath+0x2db0/0x2db0 [ 50.279186] ? kasan_check_read+0x11/0x20 [ 50.283319] ? cap_capable+0x1f9/0x260 [ 50.287206] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 50.292730] ? security_capable+0x99/0xc0 [ 50.296869] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 50.302408] ? ns_capable_common+0x13f/0x170 [ 50.306805] ? get_anon_bdev+0x2f0/0x2f0 [ 50.310853] ? sget+0x113/0x150 [ 50.314117] ? fuse_get_root_inode+0x190/0x190 [ 50.318700] mount_nodev+0x6b/0x110 [ 50.322310] fuse_mount+0x2c/0x40 [ 50.325750] mount_fs+0xae/0x328 [ 50.329103] vfs_kern_mount.part.34+0xd4/0x4d0 [ 50.333668] ? may_umount+0xb0/0xb0 [ 50.337280] ? _raw_read_unlock+0x22/0x30 [ 50.341411] ? __get_fs_type+0x97/0xc0 [ 50.345283] do_mount+0x564/0x3070 [ 50.348814] ? copy_mount_string+0x40/0x40 [ 50.353038] ? rcu_pm_notify+0xc0/0xc0 [ 50.356915] ? copy_mount_options+0x5f/0x380 [ 50.361319] ? rcu_read_lock_sched_held+0x108/0x120 [ 50.366326] ? kmem_cache_alloc_trace+0x616/0x780 [ 50.371154] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 50.376674] ? _copy_from_user+0xdf/0x150 [ 50.380803] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 50.386320] ? copy_mount_options+0x285/0x380 [ 50.390799] ksys_mount+0x12d/0x140 [ 50.394409] __x64_sys_mount+0xbe/0x150 [ 50.398367] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 50.403372] do_syscall_64+0x1b1/0x800 [ 50.407244] ? finish_task_switch+0x1ca/0x810 [ 50.411732] ? syscall_return_slowpath+0x5c0/0x5c0 [ 50.416647] ? syscall_return_slowpath+0x30f/0x5c0 [ 50.421570] ? entry_SYSCALL_64_after_hwframe+0x59/0xbe [ 50.426921] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 50.431758] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 50.436934] RIP: 0033:0x447cd9 [ 50.440105] RSP: 002b:00007fbb431e0828 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 50.447798] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 0000000000447cd9 [ 50.455053] RDX: 00000000004b08f6 RSI: 0000000020000100 RDI: 00000000004c74a5 [ 50.462321] RBP: 000000000000c000 R08: 00007fbb431e0840 R09: 0000000000000000 [ 50.469584] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 50.476834] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 50.484104] CPU: 0 PID: 4463 Comm: syz-executor152 Not tainted 4.17.0-rc3+ #32 [ 50.488811] FAULT_INJECTION: forcing a failure. [ 50.488811] name failslab, interval 1, probability 0, space 0, times 0 [ 50.491494] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 50.491499] Call Trace: [ 50.491520] dump_stack+0x1b9/0x294 [ 50.491531] ? dump_stack_print_info.cold.2+0x52/0x52 [ 50.491544] ? __save_stack_trace+0x7e/0xd0 [ 50.491563] should_fail.cold.4+0xa/0x1a [ 50.531828] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 50.536921] ? save_stack+0x43/0xd0 [ 50.540529] ? kasan_kmalloc+0xc4/0xe0 [ 50.544397] ? kasan_slab_alloc+0x12/0x20 [ 50.548529] ? kmem_cache_alloc+0x12e/0x760 [ 50.552836] ? fuse_alloc_inode+0x96/0x4f0 [ 50.557069] ? alloc_inode+0x63/0x190 [ 50.560850] ? iget5_locked+0x20e/0x570 [ 50.564811] ? graph_lock+0x170/0x170 [ 50.568606] ? print_usage_bug+0xc0/0xc0 [ 50.572648] ? vfs_kern_mount.part.34+0xd4/0x4d0 [ 50.577383] ? do_mount+0x564/0x3070 [ 50.581074] ? ksys_mount+0x12d/0x140 [ 50.584855] ? __x64_sys_mount+0xbe/0x150 [ 50.588989] ? find_held_lock+0x36/0x1c0 [ 50.593044] ? __lock_is_held+0xb5/0x140 [ 50.597093] ? check_same_owner+0x320/0x320 [ 50.601396] ? __mutex_init+0x1ef/0x280 [ 50.605356] ? rcu_note_context_switch+0x710/0x710 [ 50.610267] ? __ia32_sys_membarrier+0x150/0x150 [ 50.615009] __should_failslab+0x124/0x180 [ 50.619230] should_failslab+0x9/0x14 [ 50.623014] kmem_cache_alloc_trace+0x2cb/0x780 [ 50.627666] ? init_wait_entry+0x1b0/0x1b0 [ 50.631887] ? find_held_lock+0x36/0x1c0 [ 50.635946] fuse_alloc_inode+0x3ae/0x4f0 [ 50.640078] ? fuse_dev_alloc+0x4e0/0x4e0 [ 50.644209] ? lock_downgrade+0x8e0/0x8e0 [ 50.648345] ? kasan_check_read+0x11/0x20 [ 50.652475] ? do_raw_spin_unlock+0x9e/0x2e0 [ 50.656868] ? do_raw_spin_trylock+0x1b0/0x1b0 [ 50.661435] ? kasan_check_write+0x14/0x20 [ 50.665652] ? find_inode.isra.19+0xc3/0x1d0 [ 50.670042] ? fuse_dev_alloc+0x4e0/0x4e0 [ 50.674169] alloc_inode+0x63/0x190 [ 50.677778] iget5_locked+0x20e/0x570 [ 50.681557] ? fuse_inode_eq+0x80/0x80 [ 50.685422] ? fuse_init_file_inode+0x70/0x70 [ 50.689898] ? inode_lru_isolate+0x580/0x580 [ 50.694287] ? cgwb_kill+0x630/0x630 [ 50.697989] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 50.703510] ? print_usage_bug+0xc0/0xc0 [ 50.707563] fuse_iget+0x1cc/0x820 [ 50.711090] ? fuse_change_attributes+0x810/0x810 [ 50.715934] ? _raw_spin_unlock+0x22/0x30 [ 50.720070] fuse_get_root_inode+0x121/0x190 [ 50.724463] ? fuse_iget+0x820/0x820 [ 50.728164] ? _raw_spin_unlock_bh+0x30/0x40 [ 50.732562] ? bdi_set_max_ratio+0x112/0x150 [ 50.736957] fuse_fill_super+0x11e0/0x1e20 [ 50.741176] ? fuse_get_root_inode+0x190/0x190 [ 50.745742] ? __alloc_pages_slowpath+0x2db0/0x2db0 [ 50.750746] ? kasan_check_read+0x11/0x20 [ 50.754883] ? cap_capable+0x1f9/0x260 [ 50.758756] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 50.764276] ? security_capable+0x99/0xc0 [ 50.768407] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 50.773940] ? ns_capable_common+0x13f/0x170 [ 50.778332] ? get_anon_bdev+0x2f0/0x2f0 [ 50.782371] ? sget+0x113/0x150 [ 50.785632] ? fuse_get_root_inode+0x190/0x190 [ 50.790199] mount_nodev+0x6b/0x110 [ 50.793812] fuse_mount+0x2c/0x40 [ 50.797248] mount_fs+0xae/0x328 [ 50.800598] vfs_kern_mount.part.34+0xd4/0x4d0 [ 50.805162] ? may_umount+0xb0/0xb0 [ 50.808775] ? _raw_read_unlock+0x22/0x30 [ 50.812902] ? __get_fs_type+0x97/0xc0 [ 50.816776] do_mount+0x564/0x3070 [ 50.820300] ? do_raw_spin_unlock+0x9e/0x2e0 [ 50.824696] ? copy_mount_string+0x40/0x40 [ 50.828924] ? rcu_pm_notify+0xc0/0xc0 [ 50.832796] ? copy_mount_options+0x5f/0x380 [ 50.837185] ? rcu_read_lock_sched_held+0x108/0x120 [ 50.842183] ? kmem_cache_alloc_trace+0x616/0x780 [ 50.847057] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 50.852604] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 50.858136] ? copy_mount_options+0x285/0x380 [ 50.862630] ksys_mount+0x12d/0x140 [ 50.866252] __x64_sys_mount+0xbe/0x150 [ 50.870222] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 50.875235] do_syscall_64+0x1b1/0x800 [ 50.879117] ? syscall_slow_exit_work+0x4f0/0x4f0 [ 50.883953] ? syscall_return_slowpath+0x5c0/0x5c0 [ 50.888879] ? syscall_return_slowpath+0x30f/0x5c0 [ 50.893808] ? entry_SYSCALL_64_after_hwframe+0x59/0xbe [ 50.899169] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 50.904011] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 50.909193] RIP: 0033:0x447cd9 [ 50.912372] RSP: 002b:00007fbb431e0828 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 50.920075] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 0000000000447cd9 [ 50.927335] RDX: 00000000004b08f6 RSI: 0000000020000100 RDI: 00000000004c74a5 [ 50.934597] RBP: 000000000000c000 R08: 00007fbb431e0840 R09: 0000000000000000 [ 50.941855] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 50.949116] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 50.956396] CPU: 1 PID: 4451 Comm: syz-executor152 Not tainted 4.17.0-rc3+ #32 [ 50.963760] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 50.973094] FAULT_INJECTION: forcing a failure. [ 50.973094] name failslab, interval 1, probability 0, space 0, times 0 [ 50.973117] Call Trace: [ 50.986874] dump_stack+0x1b9/0x294 [ 50.990499] ? dump_stack_print_info.cold.2+0x52/0x52 [ 50.995706] should_fail.cold.4+0xa/0x1a [ 50.999762] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 51.004859] ? do_raw_spin_trylock+0x1b0/0x1b0 [ 51.009436] ? _raw_spin_unlock_irqrestore+0x74/0xc0 [ 51.014533] ? graph_lock+0x170/0x170 [ 51.018327] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 51.023335] ? graph_lock+0x170/0x170 [ 51.027128] ? find_held_lock+0x36/0x1c0 [ 51.031187] ? __lock_is_held+0xb5/0x140 [ 51.035254] ? check_same_owner+0x320/0x320 [ 51.039572] ? rcu_note_context_switch+0x710/0x710 [ 51.044511] __should_failslab+0x124/0x180 [ 51.048760] should_failslab+0x9/0x14 [ 51.052587] kmem_cache_alloc_trace+0x2cb/0x780 [ 51.057251] ? __legitimize_mnt+0x86/0x130 [ 51.061482] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 51.067017] get_mountpoint+0x14f/0x400 [ 51.070983] ? namespace_unlock+0x1f0/0x1f0 [ 51.075297] ? down_read+0x1b0/0x1b0 [ 51.079010] ? rcu_read_lock_sched_held+0x108/0x120 [ 51.084024] lock_mount+0xfa/0x2e0 [ 51.087558] do_add_mount+0x27/0x370 [ 51.091269] do_mount+0x18e6/0x3070 [ 51.094894] ? copy_mount_string+0x40/0x40 [ 51.099124] ? rcu_pm_notify+0xc0/0xc0 [ 51.103011] ? copy_mount_options+0x5f/0x380 [ 51.107411] ? rcu_read_lock_sched_held+0x108/0x120 [ 51.112420] ? kmem_cache_alloc_trace+0x616/0x780 [ 51.119960] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 51.125493] ? _copy_from_user+0xdf/0x150 [ 51.129643] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 51.135174] ? copy_mount_options+0x285/0x380 [ 51.139666] ksys_mount+0x12d/0x140 [ 51.143292] __x64_sys_mount+0xbe/0x150 [ 51.147258] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 51.152268] do_syscall_64+0x1b1/0x800 [ 51.156148] ? finish_task_switch+0x1ca/0x810 [ 51.160640] ? syscall_return_slowpath+0x5c0/0x5c0 [ 51.165563] ? syscall_return_slowpath+0x30f/0x5c0 [ 51.170491] ? entry_SYSCALL_64_after_hwframe+0x59/0xbe [ 51.175851] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 51.180691] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 51.185871] RIP: 0033:0x447cd9 [ 51.189050] RSP: 002b:00007fbb431e0828 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 51.196752] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 0000000000447cd9 [ 51.204012] RDX: 00000000004b08f6 RSI: 0000000020000100 RDI: 00000000004c74a5 [ 51.211279] RBP: 000000000000c000 R08: 00007fbb431e0840 R09: 0000000000000000 [ 51.218541] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 51.225800] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 51.233079] CPU: 0 PID: 4458 Comm: syz-executor152 Not tainted 4.17.0-rc3+ #32 [ 51.240445] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 51.249801] Call Trace: [ 51.252419] dump_stack+0x1b9/0x294 [ 51.256066] ? dump_stack_print_info.cold.2+0x52/0x52 [ 51.258204] FAULT_INJECTION: forcing a failure. [ 51.258204] name failslab, interval 1, probability 0, space 0, times 0 [ 51.261262] ? __save_stack_trace+0x7e/0xd0 [ 51.261286] should_fail.cold.4+0xa/0x1a [ 51.261303] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 51.261318] ? save_stack+0x43/0xd0 [ 51.261339] ? kasan_kmalloc+0xc4/0xe0 [ 51.261352] ? kasan_slab_alloc+0x12/0x20 [ 51.261364] ? kmem_cache_alloc+0x12e/0x760 [ 51.301924] ? fuse_alloc_inode+0x96/0x4f0 [ 51.306154] ? alloc_inode+0x63/0x190 [ 51.309973] ? iget5_locked+0x20e/0x570 [ 51.313942] ? graph_lock+0x170/0x170 [ 51.317738] ? print_usage_bug+0xc0/0xc0 [ 51.321794] ? vfs_kern_mount.part.34+0xd4/0x4d0 [ 51.326545] ? do_mount+0x564/0x3070 [ 51.330250] ? ksys_mount+0x12d/0x140 [ 51.334045] ? __x64_sys_mount+0xbe/0x150 [ 51.338188] ? find_held_lock+0x36/0x1c0 [ 51.342247] ? __lock_is_held+0xb5/0x140 [ 51.346313] ? check_same_owner+0x320/0x320 [ 51.350628] ? __mutex_init+0x1ef/0x280 [ 51.354601] ? rcu_note_context_switch+0x710/0x710 [ 51.359524] ? __ia32_sys_membarrier+0x150/0x150 [ 51.364281] __should_failslab+0x124/0x180 [ 51.368515] should_failslab+0x9/0x14 [ 51.372309] kmem_cache_alloc_trace+0x2cb/0x780 [ 51.376972] ? init_wait_entry+0x1b0/0x1b0 [ 51.381201] ? find_held_lock+0x36/0x1c0 [ 51.385263] fuse_alloc_inode+0x3ae/0x4f0 [ 51.389408] ? fuse_dev_alloc+0x4e0/0x4e0 [ 51.393547] ? lock_downgrade+0x8e0/0x8e0 [ 51.397694] ? kasan_check_read+0x11/0x20 [ 51.401836] ? do_raw_spin_unlock+0x9e/0x2e0 [ 51.406240] ? do_raw_spin_trylock+0x1b0/0x1b0 [ 51.410816] ? kasan_check_write+0x14/0x20 [ 51.415043] ? find_inode.isra.19+0xc3/0x1d0 [ 51.419459] ? fuse_dev_alloc+0x4e0/0x4e0 [ 51.423604] alloc_inode+0x63/0x190 [ 51.427227] iget5_locked+0x20e/0x570 [ 51.431022] ? fuse_inode_eq+0x80/0x80 [ 51.434904] ? fuse_init_file_inode+0x70/0x70 [ 51.439400] ? inode_lru_isolate+0x580/0x580 [ 51.443802] ? cgwb_kill+0x630/0x630 [ 51.447516] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 51.453047] ? print_usage_bug+0xc0/0xc0 [ 51.457102] fuse_iget+0x1cc/0x820 [ 51.460641] ? fuse_change_attributes+0x810/0x810 [ 51.465482] ? _raw_spin_unlock+0x22/0x30 [ 51.469630] fuse_get_root_inode+0x121/0x190 [ 51.474033] ? fuse_iget+0x820/0x820 [ 51.477750] ? _raw_spin_unlock_bh+0x30/0x40 [ 51.482156] ? bdi_set_max_ratio+0x112/0x150 [ 51.486559] fuse_fill_super+0x11e0/0x1e20 [ 51.490794] ? fuse_get_root_inode+0x190/0x190 [ 51.495372] ? __alloc_pages_slowpath+0x2db0/0x2db0 [ 51.500396] ? kasan_check_read+0x11/0x20 [ 51.504541] ? cap_capable+0x1f9/0x260 [ 51.508432] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 51.513965] ? security_capable+0x99/0xc0 [ 51.518111] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 51.523645] ? ns_capable_common+0x13f/0x170 [ 51.528052] ? get_anon_bdev+0x2f0/0x2f0 [ 51.532103] ? sget+0x113/0x150 [ 51.535378] ? fuse_get_root_inode+0x190/0x190 [ 51.539962] mount_nodev+0x6b/0x110 [ 51.543582] fuse_mount+0x2c/0x40 [ 51.547030] mount_fs+0xae/0x328 [ 51.550398] vfs_kern_mount.part.34+0xd4/0x4d0 [ 51.554975] ? may_umount+0xb0/0xb0 [ 51.558595] ? _raw_read_unlock+0x22/0x30 [ 51.562737] ? __get_fs_type+0x97/0xc0 [ 51.566624] do_mount+0x564/0x3070 [ 51.570159] ? do_raw_spin_unlock+0x9e/0x2e0 [ 51.574566] ? copy_mount_string+0x40/0x40 [ 51.578793] ? rcu_pm_notify+0xc0/0xc0 [ 51.582682] ? copy_mount_options+0x5f/0x380 [ 51.587083] ? rcu_read_lock_sched_held+0x108/0x120 [ 51.592092] ? kmem_cache_alloc_trace+0x616/0x780 [ 51.596933] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 51.602471] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 51.608001] ? copy_mount_options+0x285/0x380 [ 51.612495] ksys_mount+0x12d/0x140 [ 51.616117] __x64_sys_mount+0xbe/0x150 [ 51.620085] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 51.625099] do_syscall_64+0x1b1/0x800 [ 51.628981] ? syscall_slow_exit_work+0x4f0/0x4f0 [ 51.633820] ? syscall_return_slowpath+0x5c0/0x5c0 [ 51.638742] ? syscall_return_slowpath+0x30f/0x5c0 [ 51.643670] ? entry_SYSCALL_64_after_hwframe+0x59/0xbe [ 51.649033] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 51.653876] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 51.659058] RIP: 0033:0x447cd9 [ 51.662238] RSP: 002b:00007fbb431e0828 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 51.669942] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 0000000000447cd9 [ 51.677204] RDX: 00000000004b08f6 RSI: 0000000020000100 RDI: 00000000004c74a5 [ 51.684464] RBP: 000000000000c000 R08: 00007fbb431e0840 R09: 0000000000000000 [ 51.691724] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 51.698986] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 51.706269] CPU: 1 PID: 4468 Comm: syz-executor152 Not tainted 4.17.0-rc3+ #32 [ 51.713637] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 51.722994] Call Trace: [ 51.725592] dump_stack+0x1b9/0x294 [ 51.729231] ? dump_stack_print_info.cold.2+0x52/0x52 [ 51.734429] ? is_bpf_text_address+0xd7/0x170 [ 51.736828] FAULT_INJECTION: forcing a failure. [ 51.736828] name failslab, interval 1, probability 0, space 0, times 0 [ 51.738929] ? kernel_text_address+0x79/0xf0 [ 51.738945] ? __unwind_start+0x166/0x330 [ 51.738964] should_fail.cold.4+0xa/0x1a [ 51.738980] ? __save_stack_trace+0x7e/0xd0 [ 51.739001] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 51.772125] ? graph_lock+0x170/0x170 [ 51.775926] ? save_stack+0x43/0xd0 [ 51.779543] ? kasan_kmalloc+0xc4/0xe0 [ 51.783423] ? kasan_slab_alloc+0x12/0x20 [ 51.787566] ? find_held_lock+0x36/0x1c0 [ 51.791622] ? __lock_is_held+0xb5/0x140 [ 51.795688] ? check_same_owner+0x320/0x320 [ 51.800009] ? rcu_note_context_switch+0x710/0x710 [ 51.804940] __should_failslab+0x124/0x180 [ 51.809194] should_failslab+0x9/0x14 [ 51.812991] kmem_cache_alloc_node_trace+0x26f/0x770 [ 51.818099] __kmalloc_node_track_caller+0x33/0x70 [ 51.823027] __kmalloc_reserve.isra.38+0x3a/0xe0 [ 51.827781] __alloc_skb+0x14d/0x780 [ 51.831492] ? skb_scrub_packet+0x580/0x580 [ 51.835810] ? rcu_bh_force_quiescent_state+0x20/0x20 [ 51.841004] ? netlink_has_listeners+0x2ff/0x4c0 [ 51.845757] ? netlink_tap_init_net+0x3c0/0x3c0 [ 51.850429] kobject_uevent_env+0x801/0xea0 [ 51.854746] ? device_pm_add+0x221/0x340 [ 51.858807] kobject_uevent+0x1f/0x30 [ 51.862600] device_add+0xb01/0x16d0 [ 51.866310] ? device_private_init+0x230/0x230 [ 51.870889] ? kfree+0x1e9/0x260 [ 51.874250] ? kfree_const+0x5e/0x70 [ 51.878561] device_create_groups_vargs+0x1ff/0x270 [ 51.883580] device_create_vargs+0x46/0x60 [ 51.887814] bdi_register_va.part.10+0xbb/0x970 [ 51.892477] ? cgwb_kill+0x630/0x630 [ 51.896187] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 51.901715] ? bdi_init+0x416/0x510 [ 51.905335] ? wb_init+0x9e0/0x9e0 [ 51.908873] ? bdi_alloc_node+0x67/0xe0 [ 51.912840] ? bdi_alloc_node+0x67/0xe0 [ 51.916812] ? rcu_read_lock_sched_held+0x108/0x120 [ 51.921825] ? kmem_cache_alloc_node_trace+0x34e/0x770 [ 51.927106] ? _raw_spin_unlock+0x22/0x30 [ 51.931249] bdi_register_va+0x68/0x80 [ 51.935132] super_setup_bdi_name+0x123/0x220 [ 51.939624] ? kill_block_super+0x100/0x100 [ 51.943946] ? kmem_cache_alloc_trace+0x616/0x780 [ 51.948786] ? match_wildcard+0x3c0/0x3c0 [ 51.952930] ? trace_hardirqs_on+0xd/0x10 [ 51.957077] fuse_fill_super+0xe6e/0x1e20 [ 51.961226] ? fuse_get_root_inode+0x190/0x190 [ 51.965805] ? __alloc_pages_slowpath+0x2db0/0x2db0 [ 51.970818] ? kasan_check_read+0x11/0x20 [ 51.974964] ? cap_capable+0x1f9/0x260 [ 51.978855] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 51.984386] ? security_capable+0x99/0xc0 [ 51.988533] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 51.994063] ? ns_capable_common+0x13f/0x170 [ 51.998469] ? get_anon_bdev+0x2f0/0x2f0 [ 52.002523] ? sget+0x113/0x150 [ 52.005798] ? fuse_get_root_inode+0x190/0x190 [ 52.010376] mount_nodev+0x6b/0x110 [ 52.014000] fuse_mount+0x2c/0x40 [ 52.017452] mount_fs+0xae/0x328 [ 52.020818] vfs_kern_mount.part.34+0xd4/0x4d0 [ 52.025398] ? may_umount+0xb0/0xb0 [ 52.029024] ? _raw_read_unlock+0x22/0x30 [ 52.033165] ? __get_fs_type+0x97/0xc0 [ 52.037049] do_mount+0x564/0x3070 [ 52.040585] ? do_raw_spin_unlock+0x9e/0x2e0 [ 52.044989] ? copy_mount_string+0x40/0x40 [ 52.049219] ? rcu_pm_notify+0xc0/0xc0 [ 52.053105] ? copy_mount_options+0x5f/0x380 [ 52.057506] ? rcu_read_lock_sched_held+0x108/0x120 [ 52.062518] ? kmem_cache_alloc_trace+0x616/0x780 [ 52.067895] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 52.073432] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 52.078965] ? copy_mount_options+0x285/0x380 [ 52.083457] ksys_mount+0x12d/0x140 [ 52.087083] __x64_sys_mount+0xbe/0x150 [ 52.091051] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 52.096066] do_syscall_64+0x1b1/0x800 [ 52.099950] ? syscall_slow_exit_work+0x4f0/0x4f0 [ 52.104792] ? syscall_return_slowpath+0x5c0/0x5c0 [ 52.109717] ? syscall_return_slowpath+0x30f/0x5c0 [ 52.114644] ? entry_SYSCALL_64_after_hwframe+0x59/0xbe [ 52.120019] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 52.124865] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 52.130047] RIP: 0033:0x447cd9 [ 52.133228] RSP: 002b:00007fbb431e0828 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 52.140931] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 0000000000447cd9 [ 52.148195] RDX: 00000000004b08f6 RSI: 0000000020000100 RDI: 00000000004c74a5 [ 52.155454] RBP: 000000000000c000 R08: 00007fbb431e0840 R09: 0000000000000000 [ 52.162714] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 52.169976] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 52.177258] CPU: 0 PID: 4470 Comm: syz-executor152 Not tainted 4.17.0-rc3+ #32 [ 52.184628] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 52.193984] Call Trace: [ 52.195191] FAULT_INJECTION: forcing a failure. [ 52.195191] name failslab, interval 1, probability 0, space 0, times 0 [ 52.196601] dump_stack+0x1b9/0x294 [ 52.196619] ? dump_stack_print_info.cold.2+0x52/0x52 [ 52.196632] ? kernel_text_address+0x79/0xf0 [ 52.196654] ? __unwind_start+0x166/0x330 [ 52.225118] ? __kernel_text_address+0xd/0x40 [ 52.229612] should_fail.cold.4+0xa/0x1a [ 52.233669] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 52.238771] ? save_stack+0xa9/0xd0 [ 52.242395] ? graph_lock+0x170/0x170 [ 52.246188] ? kasan_kmalloc+0xc4/0xe0 [ 52.250070] ? kmem_cache_alloc_trace+0x152/0x780 [ 52.254904] ? kobject_uevent_env+0x20f/0xea0 [ 52.259390] ? kobject_uevent+0x1f/0x30 [ 52.263357] ? device_add+0xb01/0x16d0 [ 52.267236] ? device_create_groups_vargs+0x1ff/0x270 [ 52.272422] ? find_held_lock+0x36/0x1c0 [ 52.276482] ? __lock_is_held+0xb5/0x140 [ 52.280552] ? check_same_owner+0x320/0x320 [ 52.284868] ? do_raw_spin_unlock+0x9e/0x2e0 [ 52.289272] ? rcu_note_context_switch+0x710/0x710 [ 52.294200] __should_failslab+0x124/0x180 [ 52.298433] should_failslab+0x9/0x14 [ 52.302226] __kmalloc+0x2c8/0x760 [ 52.305762] ? kobject_uevent_env+0x20f/0xea0 [ 52.310251] ? rcu_read_lock_sched_held+0x108/0x120 [ 52.315260] ? kobject_get_path+0xc2/0x1a0 [ 52.319494] kobject_get_path+0xc2/0x1a0 [ 52.323552] kobject_uevent_env+0x234/0xea0 [ 52.327865] ? device_pm_add+0x221/0x340 [ 52.331928] kobject_uevent+0x1f/0x30 [ 52.335723] device_add+0xb01/0x16d0 [ 52.339434] ? device_private_init+0x230/0x230 [ 52.344011] ? kfree+0x1e9/0x260 [ 52.347375] ? kfree_const+0x5e/0x70 [ 52.351087] device_create_groups_vargs+0x1ff/0x270 [ 52.356099] device_create_vargs+0x46/0x60 [ 52.360334] bdi_register_va.part.10+0xbb/0x970 [ 52.364999] ? cgwb_kill+0x630/0x630 [ 52.368711] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 52.374241] ? bdi_init+0x416/0x510 [ 52.377862] ? wb_init+0x9e0/0x9e0 [ 52.381395] ? bdi_alloc_node+0x67/0xe0 [ 52.385359] ? bdi_alloc_node+0x67/0xe0 [ 52.389330] ? rcu_read_lock_sched_held+0x108/0x120 [ 52.394345] ? kmem_cache_alloc_node_trace+0x34e/0x770 [ 52.399621] ? _raw_spin_unlock+0x22/0x30 [ 52.403781] bdi_register_va+0x68/0x80 [ 52.407668] super_setup_bdi_name+0x123/0x220 [ 52.412157] ? kill_block_super+0x100/0x100 [ 52.416477] ? kmem_cache_alloc_trace+0x616/0x780 [ 52.421319] ? match_wildcard+0x3c0/0x3c0 [ 52.425460] ? trace_hardirqs_on+0xd/0x10 [ 52.429607] fuse_fill_super+0xe6e/0x1e20 [ 52.433756] ? fuse_get_root_inode+0x190/0x190 [ 52.438339] ? __alloc_pages_slowpath+0x2db0/0x2db0 [ 52.443355] ? kasan_check_read+0x11/0x20 [ 52.447501] ? cap_capable+0x1f9/0x260 [ 52.451392] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 52.456920] ? security_capable+0x99/0xc0 [ 52.461066] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 52.466597] ? ns_capable_common+0x13f/0x170 [ 52.471003] ? get_anon_bdev+0x2f0/0x2f0 [ 52.475060] ? sget+0x113/0x150 [ 52.478340] ? fuse_get_root_inode+0x190/0x190 [ 52.482917] mount_nodev+0x6b/0x110 [ 52.486542] fuse_mount+0x2c/0x40 [ 52.489992] mount_fs+0xae/0x328 [ 52.493356] vfs_kern_mount.part.34+0xd4/0x4d0 [ 52.497933] ? may_umount+0xb0/0xb0 [ 52.501554] ? _raw_read_unlock+0x22/0x30 [ 52.505697] ? __get_fs_type+0x97/0xc0 [ 52.509581] do_mount+0x564/0x3070 [ 52.513117] ? do_raw_spin_unlock+0x9e/0x2e0 [ 52.517523] ? copy_mount_string+0x40/0x40 [ 52.521756] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 52.526768] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 52.531520] ? retint_kernel+0x10/0x10 [ 52.535405] ? copy_mount_options+0x1e3/0x380 [ 52.539894] ? copy_mount_options+0x1f0/0x380 [ 52.544386] ? copy_mount_options+0x1f6/0x380 [ 52.548878] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 52.554407] ? copy_mount_options+0x285/0x380 [ 52.558900] ksys_mount+0x12d/0x140 [ 52.562521] __x64_sys_mount+0xbe/0x150 [ 52.566488] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 52.571504] do_syscall_64+0x1b1/0x800 [ 52.575387] ? syscall_slow_exit_work+0x4f0/0x4f0 [ 52.580226] ? syscall_return_slowpath+0x5c0/0x5c0 [ 52.585153] ? syscall_return_slowpath+0x30f/0x5c0 [ 52.590079] ? entry_SYSCALL_64_after_hwframe+0x59/0xbe [ 52.595439] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 52.600280] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 52.605473] RIP: 0033:0x447cd9 [ 52.608655] RSP: 002b:00007fbb431e0828 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 52.616357] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 0000000000447cd9 [ 52.623620] RDX: 00000000004b08f6 RSI: 0000000020000100 RDI: 00000000004c74a5 [ 52.630879] RBP: 000000000000c000 R08: 00007fbb431e0840 R09: 0000000000000000 [ 52.638140] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 52.645398] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 52.652680] CPU: 1 PID: 4472 Comm: syz-executor152 Not tainted 4.17.0-rc3+ #32 [ 52.660044] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 52.669391] Call Trace: [ 52.671970] dump_stack+0x1b9/0x294 [ 52.675587] ? dump_stack_print_info.cold.2+0x52/0x52 [ 52.680762] ? is_bpf_text_address+0xd7/0x170 [ 52.685240] ? kernel_text_address+0x79/0xf0 [ 52.689630] ? __unwind_start+0x166/0x330 [ 52.693762] should_fail.cold.4+0xa/0x1a [ 52.697831] ? __save_stack_trace+0x7e/0xd0 [ 52.702143] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 52.707235] ? graph_lock+0x170/0x170 [ 52.711030] ? save_stack+0x43/0xd0 [ 52.714645] ? kasan_kmalloc+0xc4/0xe0 [ 52.718516] ? kasan_slab_alloc+0x12/0x20 [ 52.722649] ? find_held_lock+0x36/0x1c0 [ 52.726694] ? __lock_is_held+0xb5/0x140 [ 52.730745] ? check_same_owner+0x320/0x320 [ 52.735058] ? rcu_note_context_switch+0x710/0x710 [ 52.739977] __should_failslab+0x124/0x180 [ 52.744208] should_failslab+0x9/0x14 [ 52.747992] kmem_cache_alloc_node_trace+0x26f/0x770 [ 52.753086] __kmalloc_node_track_caller+0x33/0x70 [ 52.758000] __kmalloc_reserve.isra.38+0x3a/0xe0 [ 52.762748] __alloc_skb+0x14d/0x780 [ 52.766445] ? skb_scrub_packet+0x580/0x580 [ 52.770758] ? rcu_bh_force_quiescent_state+0x20/0x20 [ 52.775936] ? netlink_has_listeners+0x2ff/0x4c0 [ 52.780674] ? netlink_tap_init_net+0x3c0/0x3c0 [ 52.785345] kobject_uevent_env+0x801/0xea0 [ 52.789650] ? device_pm_add+0x221/0x340 [ 52.793700] kobject_uevent+0x1f/0x30 [ 52.797487] device_add+0xb01/0x16d0 [ 52.801194] ? device_private_init+0x230/0x230 [ 52.805762] ? kfree+0x1e9/0x260 [ 52.809117] ? kfree_const+0x5e/0x70 [ 52.812815] device_create_groups_vargs+0x1ff/0x270 [ 52.817816] device_create_vargs+0x46/0x60 [ 52.822043] bdi_register_va.part.10+0xbb/0x970 [ 52.826699] ? cgwb_kill+0x630/0x630 [ 52.830398] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 52.835916] ? bdi_init+0x416/0x510 [ 52.839523] ? wb_init+0x9e0/0x9e0 [ 52.843053] ? bdi_alloc_node+0x67/0xe0 [ 52.847012] ? bdi_alloc_node+0x67/0xe0 [ 52.850980] ? rcu_read_lock_sched_held+0x108/0x120 [ 52.855984] ? kmem_cache_alloc_node_trace+0x34e/0x770 [ 52.861257] ? _raw_spin_unlock+0x22/0x30 [ 52.865398] bdi_register_va+0x68/0x80 [ 52.869272] super_setup_bdi_name+0x123/0x220 [ 52.873758] ? kill_block_super+0x100/0x100 [ 52.878093] ? kmem_cache_alloc_trace+0x616/0x780 [ 52.882925] ? match_wildcard+0x3c0/0x3c0 [ 52.887058] ? trace_hardirqs_on+0xd/0x10 [ 52.891192] fuse_fill_super+0xe6e/0x1e20 [ 52.895325] ? fuse_get_root_inode+0x190/0x190 [ 52.899893] ? __alloc_pages_slowpath+0x2db0/0x2db0 [ 52.904895] ? kasan_check_read+0x11/0x20 [ 52.909036] ? cap_capable+0x1f9/0x260 [ 52.912917] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 52.918448] ? security_capable+0x99/0xc0 [ 52.922582] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 52.928106] ? ns_capable_common+0x13f/0x170 [ 52.932506] ? get_anon_bdev+0x2f0/0x2f0 [ 52.936552] ? sget+0x113/0x150 [ 52.939828] ? fuse_get_root_inode+0x190/0x190 [ 52.944918] mount_nodev+0x6b/0x110 [ 52.948545] fuse_mount+0x2c/0x40 [ 52.951983] mount_fs+0xae/0x328 [ 52.955337] vfs_kern_mount.part.34+0xd4/0x4d0 [ 52.959905] ? may_umount+0xb0/0xb0 [ 52.963525] ? _raw_read_unlock+0x22/0x30 [ 52.967666] ? __get_fs_type+0x97/0xc0 [ 52.971539] do_mount+0x564/0x3070 [ 52.975065] ? do_raw_spin_unlock+0x9e/0x2e0 [ 52.979459] ? copy_mount_string+0x40/0x40 [ 52.983679] ? rcu_pm_notify+0xc0/0xc0 [ 52.987552] ? copy_mount_options+0x5f/0x380 [ 52.991946] ? rcu_read_lock_sched_held+0x108/0x120 [ 52.996960] ? kmem_cache_alloc_trace+0x616/0x780 [ 53.001794] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 53.007316] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 53.012840] ? copy_mount_options+0x285/0x380 [ 53.017320] ksys_mount+0x12d/0x140 [ 53.020946] __x64_sys_mount+0xbe/0x150 [ 53.024910] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 53.029911] do_syscall_64+0x1b1/0x800 [ 53.033785] ? finish_task_switch+0x1ca/0x810 [ 53.038263] ? syscall_return_slowpath+0x5c0/0x5c0 [ 53.043185] ? syscall_return_slowpath+0x30f/0x5c0 [ 53.048109] ? entry_SYSCALL_64_after_hwframe+0x59/0xbe [ 53.053473] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 53.058315] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 53.063494] RIP: 0033:0x447cd9 [ 53.066673] RSP: 002b:00007fbb431e0828 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 53.074375] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 0000000000447cd9 [ 53.081629] RDX: 00000000004b08f6 RSI: 0000000020000100 RDI: 00000000004c74a5 [ 53.088882] RBP: 000000000000c000 R08: 00007fbb431e0840 R09: 0000000000000000 [ 53.096147] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 53.103400] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 53.171288] FAULT_INJECTION: forcing a failure. [ 53.171288] name failslab, interval 1, probability 0, space 0, times 0 [ 53.180823] FAULT_INJECTION: forcing a failure. [ 53.180823] name failslab, interval 1, probability 0, space 0, times 0 [ 53.182665] CPU: 0 PID: 4476 Comm: syz-executor152 Not tainted 4.17.0-rc3+ #32 [ 53.201163] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 53.210508] Call Trace: [ 53.213098] dump_stack+0x1b9/0x294 [ 53.216724] ? dump_stack_print_info.cold.2+0x52/0x52 [ 53.221910] ? unwind_get_return_address+0x61/0xa0 [ 53.226844] ? __save_stack_trace+0x7e/0xd0 [ 53.231162] should_fail.cold.4+0xa/0x1a [ 53.235219] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 53.240318] ? save_stack+0xa9/0xd0 [ 53.243941] ? save_stack+0x43/0xd0 [ 53.247561] ? kasan_kmalloc+0xc4/0xe0 [ 53.251444] ? kasan_slab_alloc+0x12/0x20 [ 53.255587] ? graph_lock+0x170/0x170 [ 53.259378] ? mount_nodev+0x6b/0x110 [ 53.263174] ? fuse_mount+0x2c/0x40 [ 53.266793] ? mount_fs+0xae/0x328 [ 53.270326] ? vfs_kern_mount.part.34+0xd4/0x4d0 [ 53.275075] ? do_mount+0x564/0x3070 [ 53.278780] ? ksys_mount+0x12d/0x140 [ 53.282577] ? find_held_lock+0x36/0x1c0 [ 53.286634] ? __lock_is_held+0xb5/0x140 [ 53.290701] ? check_same_owner+0x320/0x320 [ 53.295037] ? rcu_note_context_switch+0x710/0x710 [ 53.299968] __should_failslab+0x124/0x180 [ 53.304202] should_failslab+0x9/0x14 [ 53.307999] kmem_cache_alloc_trace+0x2cb/0x780 [ 53.312664] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 53.317688] ? __lockdep_init_map+0x105/0x590 [ 53.322184] fuse_dentry_init+0x45/0xa0 [ 53.326164] ? fuse_create+0x30/0x30 [ 53.329871] __d_alloc+0x6f8/0xd30 [ 53.333413] ? shrink_dcache_for_umount+0x290/0x290 [ 53.338428] ? fuse_change_attributes+0x810/0x810 [ 53.343269] ? _raw_spin_unlock+0x22/0x30 [ 53.347420] ? fuse_get_root_inode+0x121/0x190 [ 53.351995] ? fuse_iget+0x820/0x820 [ 53.355711] d_make_root+0x42/0x90 [ 53.359251] fuse_fill_super+0x120e/0x1e20 [ 53.363493] ? fuse_get_root_inode+0x190/0x190 [ 53.368073] ? __alloc_pages_slowpath+0x2db0/0x2db0 [ 53.373089] ? kasan_check_read+0x11/0x20 [ 53.377233] ? cap_capable+0x1f9/0x260 [ 53.381221] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 53.386755] ? security_capable+0x99/0xc0 [ 53.390903] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 53.396434] ? ns_capable_common+0x13f/0x170 [ 53.400840] ? get_anon_bdev+0x2f0/0x2f0 [ 53.404895] ? sget+0x113/0x150 [ 53.408172] ? fuse_get_root_inode+0x190/0x190 [ 53.412751] mount_nodev+0x6b/0x110 [ 53.416372] fuse_mount+0x2c/0x40 [ 53.419821] mount_fs+0xae/0x328 [ 53.423185] vfs_kern_mount.part.34+0xd4/0x4d0 [ 53.427763] ? may_umount+0xb0/0xb0 [ 53.431388] ? _raw_read_unlock+0x22/0x30 [ 53.435525] ? __get_fs_type+0x97/0xc0 [ 53.439413] do_mount+0x564/0x3070 [ 53.442950] ? copy_mount_string+0x40/0x40 [ 53.447180] ? rcu_pm_notify+0xc0/0xc0 [ 53.451069] ? copy_mount_options+0x5f/0x380 [ 53.455472] ? rcu_read_lock_sched_held+0x108/0x120 [ 53.460484] ? kmem_cache_alloc_trace+0x616/0x780 [ 53.465345] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 53.470878] ? copy_mount_options+0x285/0x380 [ 53.475375] ksys_mount+0x12d/0x140 [ 53.478999] __x64_sys_mount+0xbe/0x150 [ 53.482969] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 53.487981] do_syscall_64+0x1b1/0x800 [ 53.491864] ? finish_task_switch+0x1ca/0x810 [ 53.496353] ? syscall_return_slowpath+0x5c0/0x5c0 [ 53.501277] ? syscall_return_slowpath+0x30f/0x5c0 [ 53.506204] ? entry_SYSCALL_64_after_hwframe+0x59/0xbe [ 53.511572] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 53.516412] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 53.521591] RIP: 0033:0x447cd9 [ 53.524771] RSP: 002b:00007fbb431e0828 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 53.532477] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 0000000000447cd9 [ 53.539738] RDX: 00000000004b08f6 RSI: 0000000020000100 RDI: 00000000004c74a5 [ 53.546999] RBP: 000000000000c000 R08: 00007fbb431e0840 R09: 0000000000000000 [ 53.554264] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 53.561528] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 53.568810] CPU: 1 PID: 4481 Comm: syz-executor152 Not tainted 4.17.0-rc3+ #32 [ 53.576179] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 53.577526] FAULT_INJECTION: forcing a failure. [ 53.577526] name failslab, interval 1, probability 0, space 0, times 0 [ 53.585532] Call Trace: [ 53.585554] dump_stack+0x1b9/0x294 [ 53.585570] ? dump_stack_print_info.cold.2+0x52/0x52 [ 53.585585] ? graph_lock+0x170/0x170 [ 53.585609] should_fail.cold.4+0xa/0x1a [ 53.616037] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 53.621142] ? graph_lock+0x170/0x170 [ 53.624935] ? lock_downgrade+0x8e0/0x8e0 [ 53.629085] ? find_held_lock+0x36/0x1c0 [ 53.633145] ? __lock_is_held+0xb5/0x140 [ 53.637213] ? check_same_owner+0x320/0x320 [ 53.641533] ? rcu_note_context_switch+0x710/0x710 [ 53.646464] __should_failslab+0x124/0x180 [ 53.650695] should_failslab+0x9/0x14 [ 53.654495] kmem_cache_alloc+0x2af/0x760 [ 53.658638] ? kasan_check_write+0x14/0x20 [ 53.662871] ? do_raw_spin_lock+0xc1/0x200 [ 53.667109] __fuse_request_alloc+0x27/0xf0 [ 53.671429] fuse_request_alloc+0x18/0x20 [ 53.675587] fuse_fill_super+0x124e/0x1e20 [ 53.679822] ? fuse_get_root_inode+0x190/0x190 [ 53.684403] ? __alloc_pages_slowpath+0x2db0/0x2db0 [ 53.689420] ? kasan_check_read+0x11/0x20 [ 53.693565] ? cap_capable+0x1f9/0x260 [ 53.697455] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 53.702986] ? security_capable+0x99/0xc0 [ 53.707131] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 53.712661] ? ns_capable_common+0x13f/0x170 [ 53.717069] ? get_anon_bdev+0x2f0/0x2f0 [ 53.721123] ? sget+0x113/0x150 [ 53.724398] ? fuse_get_root_inode+0x190/0x190 [ 53.728974] mount_nodev+0x6b/0x110 [ 53.732598] fuse_mount+0x2c/0x40 [ 53.736048] mount_fs+0xae/0x328 [ 53.739413] vfs_kern_mount.part.34+0xd4/0x4d0 [ 53.743991] ? may_umount+0xb0/0xb0 [ 53.747616] ? _raw_read_unlock+0x22/0x30 [ 53.751756] ? __get_fs_type+0x97/0xc0 [ 53.755644] do_mount+0x564/0x3070 [ 53.759180] ? interrupt_entry+0xb1/0xf0 [ 53.763239] ? copy_mount_string+0x40/0x40 [ 53.767470] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 53.772233] ? retint_kernel+0x10/0x10 [ 53.776120] ? copy_mount_options+0x213/0x380 [ 53.780624] ? write_comp_data+0x11/0x70 [ 53.784684] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 53.790398] ? copy_mount_options+0x285/0x380 [ 53.794894] ksys_mount+0x12d/0x140 [ 53.798520] __x64_sys_mount+0xbe/0x150 [ 53.802491] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 53.807505] do_syscall_64+0x1b1/0x800 [ 53.811387] ? finish_task_switch+0x1ca/0x810 [ 53.815878] ? syscall_return_slowpath+0x5c0/0x5c0 [ 53.820815] ? syscall_return_slowpath+0x30f/0x5c0 [ 53.825744] ? entry_SYSCALL_64_after_hwframe+0x59/0xbe [ 53.831108] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 53.835951] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 53.841132] RIP: 0033:0x447cd9 [ 53.844315] RSP: 002b:00007fbb431e0828 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 53.852023] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 0000000000447cd9 [ 53.859286] RDX: 00000000004b08f6 RSI: 0000000020000100 RDI: 00000000004c74a5 [ 53.866548] RBP: 000000000000c000 R08: 00007fbb431e0840 R09: 0000000000000000 [ 53.873810] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 53.881715] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 53.889018] CPU: 0 PID: 4479 Comm: syz-executor152 Not tainted 4.17.0-rc3+ #32 [ 53.890752] FAULT_INJECTION: forcing a failure. [ 53.890752] name failslab, interval 1, probability 0, space 0, times 0 [ 53.896382] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 53.896387] Call Trace: [ 53.896408] dump_stack+0x1b9/0x294 [ 53.896426] ? dump_stack_print_info.cold.2+0x52/0x52 [ 53.896442] ? unwind_get_return_address+0x61/0xa0 [ 53.896458] ? __save_stack_trace+0x7e/0xd0 [ 53.896477] should_fail.cold.4+0xa/0x1a [ 53.896494] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 53.896510] ? save_stack+0xa9/0xd0 [ 53.896523] ? save_stack+0x43/0xd0 [ 53.896542] ? kasan_kmalloc+0xc4/0xe0 [ 53.957794] ? kasan_slab_alloc+0x12/0x20 [ 53.961937] ? graph_lock+0x170/0x170 [ 53.965731] ? mount_nodev+0x6b/0x110 [ 53.969524] ? fuse_mount+0x2c/0x40 [ 53.973143] ? mount_fs+0xae/0x328 [ 53.976674] ? vfs_kern_mount.part.34+0xd4/0x4d0 [ 53.981423] ? do_mount+0x564/0x3070 [ 53.985130] ? ksys_mount+0x12d/0x140 [ 53.988928] ? find_held_lock+0x36/0x1c0 [ 53.992988] ? __lock_is_held+0xb5/0x140 [ 53.997060] ? check_same_owner+0x320/0x320 [ 54.001383] ? rcu_note_context_switch+0x710/0x710 [ 54.006337] __should_failslab+0x124/0x180 [ 54.010570] should_failslab+0x9/0x14 [ 54.014366] kmem_cache_alloc_trace+0x2cb/0x780 [ 54.019031] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 54.024044] ? __lockdep_init_map+0x105/0x590 [ 54.028540] fuse_dentry_init+0x45/0xa0 [ 54.032510] ? fuse_create+0x30/0x30 [ 54.036220] __d_alloc+0x6f8/0xd30 [ 54.039760] ? shrink_dcache_for_umount+0x290/0x290 [ 54.044790] ? fuse_change_attributes+0x810/0x810 [ 54.049648] ? _raw_spin_unlock+0x22/0x30 [ 54.053797] ? fuse_get_root_inode+0x121/0x190 [ 54.058376] ? fuse_iget+0x820/0x820 [ 54.062095] d_make_root+0x42/0x90 [ 54.065633] fuse_fill_super+0x120e/0x1e20 [ 54.069869] ? fuse_get_root_inode+0x190/0x190 [ 54.074449] ? __alloc_pages_slowpath+0x2db0/0x2db0 [ 54.079465] ? kasan_check_read+0x11/0x20 [ 54.083609] ? cap_capable+0x1f9/0x260 [ 54.087496] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 54.093029] ? security_capable+0x99/0xc0 [ 54.097175] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 54.102709] ? ns_capable_common+0x13f/0x170 [ 54.107116] ? get_anon_bdev+0x2f0/0x2f0 [ 54.111172] ? sget+0x113/0x150 [ 54.114452] ? fuse_get_root_inode+0x190/0x190 [ 54.119032] mount_nodev+0x6b/0x110 [ 54.122657] fuse_mount+0x2c/0x40 [ 54.126282] mount_fs+0xae/0x328 [ 54.129648] vfs_kern_mount.part.34+0xd4/0x4d0 [ 54.134228] ? may_umount+0xb0/0xb0 [ 54.137852] ? _raw_read_unlock+0x22/0x30 [ 54.141997] ? __get_fs_type+0x97/0xc0 [ 54.145882] do_mount+0x564/0x3070 [ 54.149417] ? do_raw_spin_unlock+0x9e/0x2e0 [ 54.153822] ? copy_mount_string+0x40/0x40 [ 54.158049] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 54.163061] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 54.167813] ? retint_kernel+0x10/0x10 [ 54.171701] ? copy_mount_options+0x1e3/0x380 [ 54.176192] ? copy_mount_options+0x1f0/0x380 [ 54.180680] ? copy_mount_options+0x1f6/0x380 [ 54.185176] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 54.190707] ? copy_mount_options+0x285/0x380 [ 54.195204] ksys_mount+0x12d/0x140 [ 54.198827] __x64_sys_mount+0xbe/0x150 [ 54.202800] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 54.207813] do_syscall_64+0x1b1/0x800 [ 54.211694] ? finish_task_switch+0x1ca/0x810 [ 54.216193] ? syscall_return_slowpath+0x5c0/0x5c0 [ 54.221120] ? syscall_return_slowpath+0x30f/0x5c0 [ 54.226049] ? entry_SYSCALL_64_after_hwframe+0x59/0xbe [ 54.231416] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 54.236261] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 54.241444] RIP: 0033:0x447cd9 [ 54.244626] RSP: 002b:00007fbb431e0828 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 54.252330] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 0000000000447cd9 [ 54.259592] RDX: 00000000004b08f6 RSI: 0000000020000100 RDI: 00000000004c74a5 [ 54.266854] RBP: 000000000000c000 R08: 00007fbb431e0840 R09: 0000000000000000 [ 54.274117] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 54.281378] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 54.288658] CPU: 1 PID: 4478 Comm: syz-executor152 Not tainted 4.17.0-rc3+ #32 [ 54.296036] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 54.305396] Call Trace: [ 54.308007] dump_stack+0x1b9/0x294 [ 54.309365] FAULT_INJECTION: forcing a failure. [ 54.309365] name failslab, interval 1, probability 0, space 0, times 0 [ 54.311645] ? dump_stack_print_info.cold.2+0x52/0x52 [ 54.311667] ? unwind_get_return_address+0x61/0xa0 [ 54.311689] ? __save_stack_trace+0x7e/0xd0 [ 54.337243] should_fail.cold.4+0xa/0x1a [ 54.341301] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 54.346400] ? save_stack+0xa9/0xd0 [ 54.350023] ? save_stack+0x43/0xd0 [ 54.353642] ? kasan_kmalloc+0xc4/0xe0 [ 54.357525] ? kasan_slab_alloc+0x12/0x20 [ 54.361671] ? graph_lock+0x170/0x170 [ 54.365465] ? mount_nodev+0x6b/0x110 [ 54.369258] ? fuse_mount+0x2c/0x40 [ 54.372877] ? mount_fs+0xae/0x328 [ 54.376412] ? vfs_kern_mount.part.34+0xd4/0x4d0 [ 54.381162] ? do_mount+0x564/0x3070 [ 54.384870] ? ksys_mount+0x12d/0x140 [ 54.388669] ? find_held_lock+0x36/0x1c0 [ 54.392727] ? __lock_is_held+0xb5/0x140 [ 54.396793] ? check_same_owner+0x320/0x320 [ 54.401111] ? rcu_note_context_switch+0x710/0x710 [ 54.406038] __should_failslab+0x124/0x180 [ 54.410272] should_failslab+0x9/0x14 [ 54.414066] kmem_cache_alloc_trace+0x2cb/0x780 [ 54.418730] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 54.423752] ? __lockdep_init_map+0x105/0x590 [ 54.428246] fuse_dentry_init+0x45/0xa0 [ 54.432215] ? fuse_create+0x30/0x30 [ 54.435923] __d_alloc+0x6f8/0xd30 [ 54.439461] ? shrink_dcache_for_umount+0x290/0x290 [ 54.444474] ? fuse_change_attributes+0x810/0x810 [ 54.449311] ? _raw_spin_unlock+0x22/0x30 [ 54.453459] ? fuse_get_root_inode+0x121/0x190 [ 54.458034] ? fuse_iget+0x820/0x820 [ 54.461753] d_make_root+0x42/0x90 [ 54.465290] fuse_fill_super+0x120e/0x1e20 [ 54.469526] ? fuse_get_root_inode+0x190/0x190 [ 54.474105] ? __alloc_pages_slowpath+0x2db0/0x2db0 [ 54.479119] ? kasan_check_read+0x11/0x20 [ 54.483262] ? cap_capable+0x1f9/0x260 [ 54.487151] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 54.492679] ? security_capable+0x99/0xc0 [ 54.496824] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 54.502353] ? ns_capable_common+0x13f/0x170 [ 54.506755] ? get_anon_bdev+0x2f0/0x2f0 [ 54.510809] ? sget+0x113/0x150 [ 54.514086] ? fuse_get_root_inode+0x190/0x190 [ 54.518664] mount_nodev+0x6b/0x110 [ 54.522288] fuse_mount+0x2c/0x40 [ 54.525736] mount_fs+0xae/0x328 [ 54.529103] vfs_kern_mount.part.34+0xd4/0x4d0 [ 54.533686] ? may_umount+0xb0/0xb0 [ 54.537310] ? _raw_read_unlock+0x22/0x30 [ 54.541451] ? __get_fs_type+0x97/0xc0 [ 54.545340] do_mount+0x564/0x3070 [ 54.548881] ? copy_mount_string+0x40/0x40 [ 54.553111] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 54.558124] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 54.562879] ? retint_kernel+0x10/0x10 [ 54.566767] ? copy_mount_options+0x1e3/0x380 [ 54.571257] ? copy_mount_options+0x1f0/0x380 [ 54.575746] ? copy_mount_options+0x1f6/0x380 [ 54.580238] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 54.585769] ? copy_mount_options+0x285/0x380 [ 54.590264] ksys_mount+0x12d/0x140 [ 54.593889] __x64_sys_mount+0xbe/0x150 [ 54.597855] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 54.602868] do_syscall_64+0x1b1/0x800 [ 54.606754] ? finish_task_switch+0x1ca/0x810 [ 54.611246] ? syscall_return_slowpath+0x5c0/0x5c0 [ 54.616171] ? syscall_return_slowpath+0x30f/0x5c0 [ 54.621099] ? entry_SYSCALL_64_after_hwframe+0x59/0xbe [ 54.626461] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 54.631300] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 54.636482] RIP: 0033:0x447cd9 [ 54.639665] RSP: 002b:00007fbb431e0828 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 54.647366] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 0000000000447cd9 [ 54.654626] RDX: 00000000004b08f6 RSI: 0000000020000100 RDI: 00000000004c74a5 [ 54.662759] RBP: 000000000000c000 R08: 00007fbb431e0840 R09: 0000000000000000 [ 54.670022] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 54.677284] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 54.684566] CPU: 0 PID: 4490 Comm: syz-executor152 Not tainted 4.17.0-rc3+ #32 [ 54.689635] FAULT_INJECTION: forcing a failure. [ 54.689635] name failslab, interval 1, probability 0, space 0, times 0 [ 54.691926] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 54.691931] Call Trace: [ 54.691951] dump_stack+0x1b9/0x294 [ 54.691970] ? dump_stack_print_info.cold.2+0x52/0x52 [ 54.691986] ? unwind_get_return_address+0x61/0xa0 [ 54.692008] ? __save_stack_trace+0x7e/0xd0 [ 54.733173] should_fail.cold.4+0xa/0x1a [ 54.737229] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 54.742327] ? save_stack+0xa9/0xd0 [ 54.745948] ? save_stack+0x43/0xd0 [ 54.749567] ? kasan_kmalloc+0xc4/0xe0 [ 54.753446] ? kasan_slab_alloc+0x12/0x20 [ 54.757587] ? graph_lock+0x170/0x170 [ 54.761380] ? mount_nodev+0x6b/0x110 [ 54.765173] ? fuse_mount+0x2c/0x40 [ 54.768794] ? mount_fs+0xae/0x328 [ 54.772328] ? vfs_kern_mount.part.34+0xd4/0x4d0 [ 54.777074] ? do_mount+0x564/0x3070 [ 54.780778] ? ksys_mount+0x12d/0x140 [ 54.784573] ? find_held_lock+0x36/0x1c0 [ 54.788634] ? __lock_is_held+0xb5/0x140 [ 54.792699] ? check_same_owner+0x320/0x320 [ 54.797021] ? rcu_note_context_switch+0x710/0x710 [ 54.801948] __should_failslab+0x124/0x180 [ 54.806179] should_failslab+0x9/0x14 [ 54.809974] kmem_cache_alloc_trace+0x2cb/0x780 [ 54.814637] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 54.819645] ? __lockdep_init_map+0x105/0x590 [ 54.824146] fuse_dentry_init+0x45/0xa0 [ 54.828112] ? fuse_create+0x30/0x30 [ 54.831833] __d_alloc+0x6f8/0xd30 [ 54.835370] ? shrink_dcache_for_umount+0x290/0x290 [ 54.840381] ? fuse_change_attributes+0x810/0x810 [ 54.845223] ? _raw_spin_unlock+0x22/0x30 [ 54.849369] ? fuse_get_root_inode+0x121/0x190 [ 54.853945] ? fuse_iget+0x820/0x820 [ 54.857663] d_make_root+0x42/0x90 [ 54.861196] fuse_fill_super+0x120e/0x1e20 [ 54.865432] ? fuse_get_root_inode+0x190/0x190 [ 54.870010] ? __alloc_pages_slowpath+0x2db0/0x2db0 [ 54.875026] ? kasan_check_read+0x11/0x20 [ 54.879170] ? cap_capable+0x1f9/0x260 [ 54.883059] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 54.888588] ? security_capable+0x99/0xc0 [ 54.892732] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 54.898273] ? ns_capable_common+0x13f/0x170 [ 54.902677] ? get_anon_bdev+0x2f0/0x2f0 [ 54.906732] ? sget+0x113/0x150 [ 54.910008] ? fuse_get_root_inode+0x190/0x190 [ 54.914587] mount_nodev+0x6b/0x110 [ 54.918209] fuse_mount+0x2c/0x40 [ 54.921658] mount_fs+0xae/0x328 [ 54.925025] vfs_kern_mount.part.34+0xd4/0x4d0 [ 54.929600] ? may_umount+0xb0/0xb0 [ 54.933223] ? _raw_read_unlock+0x22/0x30 [ 54.937361] ? __get_fs_type+0x97/0xc0 [ 54.941249] do_mount+0x564/0x3070 [ 54.944786] ? do_raw_spin_unlock+0x9e/0x2e0 [ 54.949196] ? copy_mount_string+0x40/0x40 [ 54.953427] ? rcu_pm_notify+0xc0/0xc0 [ 54.957317] ? copy_mount_options+0x5f/0x380 [ 54.961718] ? rcu_read_lock_sched_held+0x108/0x120 [ 54.966730] ? kmem_cache_alloc_trace+0x616/0x780 [ 54.971570] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 54.977128] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 54.982659] ? copy_mount_options+0x285/0x380 [ 54.987151] ksys_mount+0x12d/0x140 [ 54.990776] __x64_sys_mount+0xbe/0x150 [ 54.994741] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 54.999754] do_syscall_64+0x1b1/0x800 [ 55.003635] ? finish_task_switch+0x1ca/0x810 [ 55.008131] ? syscall_return_slowpath+0x5c0/0x5c0 [ 55.013057] ? syscall_return_slowpath+0x30f/0x5c0 [ 55.017987] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 55.023517] ? retint_user+0x18/0x18 [ 55.027232] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 55.032075] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 55.037262] RIP: 0033:0x447cd9 [ 55.040441] RSP: 002b:00007fbb431bf828 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 55.048956] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 0000000000447cd9 [ 55.056219] RDX: 00000000004b08f6 RSI: 0000000020000100 RDI: 00000000004c74a5 [ 55.063481] RBP: 000000000000c000 R08: 00007fbb431bf840 R09: 0000000000000000 [ 55.070743] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 55.078003] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 55.085289] CPU: 1 PID: 4492 Comm: syz-executor152 Not tainted 4.17.0-rc3+ #32 [ 55.087643] FAULT_INJECTION: forcing a failure. [ 55.087643] name failslab, interval 1, probability 0, space 0, times 0 [ 55.092647] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 55.092652] Call Trace: [ 55.092672] dump_stack+0x1b9/0x294 [ 55.092690] ? dump_stack_print_info.cold.2+0x52/0x52 [ 55.092711] ? lockdep_init_map+0x9/0x10 [ 55.128592] should_fail.cold.4+0xa/0x1a [ 55.132655] ? do_raw_write_unlock.cold.8+0x3d/0x3d [ 55.137669] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 55.142770] ? graph_lock+0x170/0x170 [ 55.146564] ? find_held_lock+0x36/0x1c0 [ 55.150627] ? find_held_lock+0x36/0x1c0 [ 55.154685] ? __lock_is_held+0xb5/0x140 [ 55.158750] ? check_same_owner+0x320/0x320 [ 55.163068] ? make_kgid+0x23/0x30 [ 55.166606] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 55.172138] ? rcu_note_context_switch+0x710/0x710 [ 55.177066] __should_failslab+0x124/0x180 [ 55.181297] should_failslab+0x9/0x14 [ 55.185090] kmem_cache_alloc+0x2af/0x760 [ 55.189231] ? do_raw_spin_trylock+0x1b0/0x1b0 [ 55.193808] ? kasan_check_write+0x14/0x20 [ 55.198038] ? do_raw_spin_lock+0xc1/0x200 [ 55.202269] __d_alloc+0xc0/0xd30 [ 55.205716] ? fuse_iget+0x1dd/0x820 [ 55.209423] ? shrink_dcache_for_umount+0x290/0x290 [ 55.214434] ? fuse_change_attributes+0x810/0x810 [ 55.219283] ? _raw_spin_unlock+0x22/0x30 [ 55.223431] ? fuse_get_root_inode+0x121/0x190 [ 55.228006] ? fuse_iget+0x820/0x820 [ 55.231724] d_make_root+0x42/0x90 [ 55.235259] fuse_fill_super+0x120e/0x1e20 [ 55.239494] ? fuse_get_root_inode+0x190/0x190 [ 55.244070] ? __alloc_pages_slowpath+0x2db0/0x2db0 [ 55.249094] ? kasan_check_read+0x11/0x20 [ 55.253239] ? cap_capable+0x1f9/0x260 [ 55.257125] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 55.262659] ? security_capable+0x99/0xc0 [ 55.266804] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 55.272335] ? ns_capable_common+0x13f/0x170 [ 55.276740] ? get_anon_bdev+0x2f0/0x2f0 [ 55.280794] ? sget+0x113/0x150 [ 55.284071] ? fuse_get_root_inode+0x190/0x190 [ 55.288646] mount_nodev+0x6b/0x110 [ 55.292270] fuse_mount+0x2c/0x40 [ 55.295718] mount_fs+0xae/0x328 [ 55.299102] vfs_kern_mount.part.34+0xd4/0x4d0 [ 55.303679] ? may_umount+0xb0/0xb0 [ 55.307300] ? _raw_read_unlock+0x22/0x30 [ 55.311441] ? __get_fs_type+0x97/0xc0 [ 55.315329] do_mount+0x564/0x3070 [ 55.318863] ? do_raw_spin_unlock+0x9e/0x2e0 [ 55.323272] ? copy_mount_string+0x40/0x40 [ 55.327500] ? rcu_pm_notify+0xc0/0xc0 [ 55.331390] ? copy_mount_options+0x5f/0x380 [ 55.335791] ? rcu_read_lock_sched_held+0x108/0x120 [ 55.340803] ? kmem_cache_alloc_trace+0x616/0x780 [ 55.345642] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 55.351179] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 55.356712] ? copy_mount_options+0x285/0x380 [ 55.361204] ksys_mount+0x12d/0x140 [ 55.364830] __x64_sys_mount+0xbe/0x150 [ 55.368795] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 55.373806] do_syscall_64+0x1b1/0x800 [ 55.377689] ? finish_task_switch+0x1ca/0x810 [ 55.382182] ? syscall_return_slowpath+0x5c0/0x5c0 [ 55.387105] ? syscall_return_slowpath+0x30f/0x5c0 [ 55.392035] ? entry_SYSCALL_64_after_hwframe+0x59/0xbe [ 55.397400] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 55.402241] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 55.407419] RIP: 0033:0x447cd9 [ 55.410598] RSP: 002b:00007fbb431bf828 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 55.418300] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 0000000000447cd9 [ 55.425560] RDX: 00000000004b08f6 RSI: 0000000020000100 RDI: 00000000004c74a5 [ 55.432824] RBP: 000000000000c000 R08: 00007fbb431bf840 R09: 0000000000000000 [ 55.440086] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 55.447345] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 55.454626] CPU: 0 PID: 4483 Comm: syz-executor152 Not tainted 4.17.0-rc3+ #32 [ 55.461993] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 55.471352] Call Trace: [ 55.472520] FAULT_INJECTION: forcing a failure. [ 55.472520] name failslab, interval 1, probability 0, space 0, times 0 [ 55.473944] dump_stack+0x1b9/0x294 [ 55.473962] ? dump_stack_print_info.cold.2+0x52/0x52 [ 55.473978] ? trace_hardirqs_on+0xd/0x10 [ 55.474000] should_fail.cold.4+0xa/0x1a [ 55.502116] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 55.507214] ? graph_lock+0x170/0x170 [ 55.511007] ? graph_lock+0x170/0x170 [ 55.514807] ? lock_downgrade+0x8e0/0x8e0 [ 55.518952] ? find_held_lock+0x36/0x1c0 [ 55.523029] ? check_same_owner+0x320/0x320 [ 55.527347] ? do_raw_spin_unlock+0x9e/0x2e0 [ 55.531753] ? rcu_note_context_switch+0x710/0x710 [ 55.536682] __should_failslab+0x124/0x180 [ 55.540914] should_failslab+0x9/0x14 [ 55.544729] __kmalloc_track_caller+0x2c4/0x760 [ 55.549421] ? may_umount+0xb0/0xb0 [ 55.553043] ? do_mount+0x25e7/0x3070 [ 55.556847] kstrdup+0x39/0x70 [ 55.560035] do_mount+0x25e7/0x3070 [ 55.563662] ? copy_mount_string+0x40/0x40 [ 55.567893] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 55.572906] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 55.577660] ? retint_kernel+0x10/0x10 [ 55.581546] ? copy_mount_options+0x1e3/0x380 [ 55.586036] ? copy_mount_options+0x1f0/0x380 [ 55.590528] ? copy_mount_options+0x1fa/0x380 [ 55.595019] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 55.600549] ? copy_mount_options+0x285/0x380 [ 55.605045] ksys_mount+0x12d/0x140 [ 55.608673] __x64_sys_mount+0xbe/0x150 [ 55.612642] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 55.617655] do_syscall_64+0x1b1/0x800 [ 55.621537] ? finish_task_switch+0x1ca/0x810 [ 55.626029] ? syscall_return_slowpath+0x5c0/0x5c0 [ 55.630958] ? syscall_return_slowpath+0x30f/0x5c0 [ 55.635885] ? entry_SYSCALL_64_after_hwframe+0x59/0xbe [ 55.641246] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 55.646096] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 55.651281] RIP: 0033:0x447cd9 [ 55.654463] RSP: 002b:00007fbb431e0828 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 55.662169] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 0000000000447cd9 [ 55.669429] RDX: 00000000004b08f6 RSI: 0000000020000100 RDI: 00000000004c74a5 [ 55.676691] RBP: 000000000000c000 R08: 00007fbb431e0840 R09: 0000000000000000 [ 55.683951] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 55.691224] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 55.698506] CPU: 1 PID: 4494 Comm: syz-executor152 Not tainted 4.17.0-rc3+ #32 [ 55.705894] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 55.715251] Call Trace: [ 55.717852] dump_stack+0x1b9/0x294 [ 55.721501] ? dump_stack_print_info.cold.2+0x52/0x52 [ 55.726712] ? lockdep_init_map+0x9/0x10 [ 55.728719] FAULT_INJECTION: forcing a failure. [ 55.728719] name failslab, interval 1, probability 0, space 0, times 0 [ 55.730799] should_fail.cold.4+0xa/0x1a [ 55.730817] ? do_raw_write_unlock.cold.8+0x3d/0x3d [ 55.730833] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 55.730853] ? graph_lock+0x170/0x170 [ 55.730867] ? find_held_lock+0x36/0x1c0 [ 55.730886] ? find_held_lock+0x36/0x1c0 [ 55.768135] ? __lock_is_held+0xb5/0x140 [ 55.772200] ? check_same_owner+0x320/0x320 [ 55.776518] ? make_kgid+0x23/0x30 [ 55.780058] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 55.785592] ? rcu_note_context_switch+0x710/0x710 [ 55.790527] __should_failslab+0x124/0x180 [ 55.794768] should_failslab+0x9/0x14 [ 55.798569] kmem_cache_alloc+0x2af/0x760 [ 55.802714] ? do_raw_spin_trylock+0x1b0/0x1b0 [ 55.807300] ? kasan_check_write+0x14/0x20 [ 55.811533] ? do_raw_spin_lock+0xc1/0x200 [ 55.815771] __d_alloc+0xc0/0xd30 [ 55.819221] ? fuse_iget+0x1dd/0x820 [ 55.822930] ? shrink_dcache_for_umount+0x290/0x290 [ 55.827944] ? fuse_change_attributes+0x810/0x810 [ 55.832784] ? _raw_spin_unlock+0x22/0x30 [ 55.836933] ? fuse_get_root_inode+0x121/0x190 [ 55.841513] ? fuse_iget+0x820/0x820 [ 55.845236] d_make_root+0x42/0x90 [ 55.848773] fuse_fill_super+0x120e/0x1e20 [ 55.853012] ? fuse_get_root_inode+0x190/0x190 [ 55.857594] ? __alloc_pages_slowpath+0x2db0/0x2db0 [ 55.862607] ? kasan_check_read+0x11/0x20 [ 55.866754] ? cap_capable+0x1f9/0x260 [ 55.870642] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 55.876173] ? security_capable+0x99/0xc0 [ 55.880902] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 55.886440] ? ns_capable_common+0x13f/0x170 [ 55.890846] ? get_anon_bdev+0x2f0/0x2f0 [ 55.894901] ? sget+0x113/0x150 [ 55.898196] ? fuse_get_root_inode+0x190/0x190 [ 55.902774] mount_nodev+0x6b/0x110 [ 55.906398] fuse_mount+0x2c/0x40 [ 55.909849] mount_fs+0xae/0x328 [ 55.913217] vfs_kern_mount.part.34+0xd4/0x4d0 [ 55.917794] ? may_umount+0xb0/0xb0 [ 55.921417] ? _raw_read_unlock+0x22/0x30 [ 55.925559] ? __get_fs_type+0x97/0xc0 [ 55.929445] do_mount+0x564/0x3070 [ 55.932981] ? do_raw_spin_unlock+0x9e/0x2e0 [ 55.937389] ? copy_mount_string+0x40/0x40 [ 55.941617] ? rcu_pm_notify+0xc0/0xc0 [ 55.945505] ? copy_mount_options+0x5f/0x380 [ 55.949911] ? rcu_read_lock_sched_held+0x108/0x120 [ 55.954925] ? kmem_cache_alloc_trace+0x616/0x780 [ 55.959764] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 55.965302] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 55.970842] ? copy_mount_options+0x285/0x380 [ 55.975337] ksys_mount+0x12d/0x140 [ 55.978964] __x64_sys_mount+0xbe/0x150 [ 55.982932] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 55.987956] do_syscall_64+0x1b1/0x800 [ 55.991839] ? finish_task_switch+0x1ca/0x810 [ 55.996331] ? syscall_return_slowpath+0x5c0/0x5c0 [ 56.001259] ? syscall_return_slowpath+0x30f/0x5c0 [ 56.006195] ? entry_SYSCALL_64_after_hwframe+0x59/0xbe [ 56.011558] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 56.016401] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 56.021592] RIP: 0033:0x447cd9 [ 56.024773] RSP: 002b:00007fbb431e0828 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 56.032476] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 0000000000447cd9 [ 56.039738] RDX: 00000000004b08f6 RSI: 0000000020000100 RDI: 00000000004c74a5 [ 56.047000] RBP: 000000000000c000 R08: 00007fbb431e0840 R09: 0000000000000000 [ 56.054263] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 56.061529] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 56.068985] CPU: 0 PID: 4496 Comm: syz-executor152 Not tainted 4.17.0-rc3+ #32 [ 56.076355] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 56.085701] Call Trace: [ 56.088280] dump_stack+0x1b9/0x294 [ 56.091897] ? dump_stack_print_info.cold.2+0x52/0x52 [ 56.097076] ? __save_stack_trace+0x7e/0xd0 [ 56.101404] should_fail.cold.4+0xa/0x1a [ 56.105453] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 56.110549] ? save_stack+0x43/0xd0 [ 56.114164] ? kasan_kmalloc+0xc4/0xe0 [ 56.118052] ? kasan_slab_alloc+0x12/0x20 [ 56.122183] ? kmem_cache_alloc+0x12e/0x760 [ 56.126487] ? fuse_alloc_inode+0x96/0x4f0 [ 56.130708] ? alloc_inode+0x63/0x190 [ 56.134503] ? iget5_locked+0x20e/0x570 [ 56.138462] ? graph_lock+0x170/0x170 [ 56.142251] ? print_usage_bug+0xc0/0xc0 [ 56.146296] ? vfs_kern_mount.part.34+0xd4/0x4d0 [ 56.151042] ? do_mount+0x564/0x3070 [ 56.154737] ? ksys_mount+0x12d/0x140 [ 56.158536] ? __x64_sys_mount+0xbe/0x150 [ 56.162803] ? find_held_lock+0x36/0x1c0 [ 56.166877] ? __lock_is_held+0xb5/0x140 [ 56.171065] ? check_same_owner+0x320/0x320 [ 56.175399] ? __mutex_init+0x1ef/0x280 [ 56.179395] ? rcu_note_context_switch+0x710/0x710 [ 56.180832] FAULT_INJECTION: forcing a failure. [ 56.180832] name failslab, interval 1, probability 0, space 0, times 0 [ 56.184344] ? __ia32_sys_membarrier+0x150/0x150 [ 56.184363] __should_failslab+0x124/0x180 [ 56.184380] should_failslab+0x9/0x14 [ 56.184394] kmem_cache_alloc_trace+0x2cb/0x780 [ 56.184414] ? init_wait_entry+0x1b0/0x1b0 [ 56.217177] ? find_held_lock+0x36/0x1c0 [ 56.221239] fuse_alloc_inode+0x3ae/0x4f0 [ 56.225383] ? fuse_dev_alloc+0x4e0/0x4e0 [ 56.229522] ? lock_downgrade+0x8e0/0x8e0 [ 56.233670] ? kasan_check_read+0x11/0x20 [ 56.237812] ? do_raw_spin_unlock+0x9e/0x2e0 [ 56.242213] ? do_raw_spin_trylock+0x1b0/0x1b0 [ 56.246791] ? kasan_check_write+0x14/0x20 [ 56.251028] ? find_inode.isra.19+0xc3/0x1d0 [ 56.255428] ? fuse_dev_alloc+0x4e0/0x4e0 [ 56.259570] alloc_inode+0x63/0x190 [ 56.263192] iget5_locked+0x20e/0x570 [ 56.266983] ? fuse_inode_eq+0x80/0x80 [ 56.270869] ? fuse_init_file_inode+0x70/0x70 [ 56.275359] ? inode_lru_isolate+0x580/0x580 [ 56.279761] ? cgwb_kill+0x630/0x630 [ 56.283472] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 56.289005] ? print_usage_bug+0xc0/0xc0 [ 56.293063] fuse_iget+0x1cc/0x820 [ 56.296603] ? fuse_change_attributes+0x810/0x810 [ 56.301442] ? _raw_spin_unlock+0x22/0x30 [ 56.305590] fuse_get_root_inode+0x121/0x190 [ 56.309993] ? fuse_iget+0x820/0x820 [ 56.313712] ? _raw_spin_unlock_bh+0x30/0x40 [ 56.318115] ? bdi_set_max_ratio+0x112/0x150 [ 56.322519] fuse_fill_super+0x11e0/0x1e20 [ 56.326754] ? fuse_get_root_inode+0x190/0x190 [ 56.331333] ? __alloc_pages_slowpath+0x2db0/0x2db0 [ 56.336347] ? kasan_check_read+0x11/0x20 [ 56.340495] ? cap_capable+0x1f9/0x260 [ 56.344383] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 56.349912] ? security_capable+0x99/0xc0 [ 56.354070] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 56.359599] ? ns_capable_common+0x13f/0x170 [ 56.364008] ? get_anon_bdev+0x2f0/0x2f0 [ 56.368066] ? sget+0x113/0x150 [ 56.371343] ? fuse_get_root_inode+0x190/0x190 [ 56.375922] mount_nodev+0x6b/0x110 [ 56.379547] fuse_mount+0x2c/0x40 [ 56.383005] mount_fs+0xae/0x328 [ 56.386375] vfs_kern_mount.part.34+0xd4/0x4d0 [ 56.390952] ? may_umount+0xb0/0xb0 [ 56.394576] ? _raw_read_unlock+0x22/0x30 [ 56.398719] ? __get_fs_type+0x97/0xc0 [ 56.402605] do_mount+0x564/0x3070 [ 56.406144] ? do_raw_spin_unlock+0x9e/0x2e0 [ 56.410551] ? copy_mount_string+0x40/0x40 [ 56.414782] ? rcu_pm_notify+0xc0/0xc0 [ 56.418670] ? copy_mount_options+0x5f/0x380 [ 56.423073] ? rcu_read_lock_sched_held+0x108/0x120 [ 56.428085] ? kmem_cache_alloc_trace+0x616/0x780 [ 56.432935] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 56.438482] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 56.444019] ? copy_mount_options+0x285/0x380 [ 56.448512] ksys_mount+0x12d/0x140 [ 56.452136] __x64_sys_mount+0xbe/0x150 [ 56.456105] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 56.461119] do_syscall_64+0x1b1/0x800 [ 56.465019] ? finish_task_switch+0x1ca/0x810 [ 56.469512] ? syscall_return_slowpath+0x5c0/0x5c0 [ 56.474436] ? syscall_return_slowpath+0x30f/0x5c0 [ 56.479366] ? entry_SYSCALL_64_after_hwframe+0x59/0xbe [ 56.484727] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 56.489567] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 56.494746] RIP: 0033:0x447cd9 [ 56.497925] RSP: 002b:00007fbb431e0828 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 56.505629] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 0000000000447cd9 [ 56.512894] RDX: 00000000004b08f6 RSI: 0000000020000100 RDI: 00000000004c74a5 [ 56.520158] RBP: 000000000000c000 R08: 00007fbb431e0840 R09: 0000000000000000 [ 56.527420] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 56.534680] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 56.541962] CPU: 1 PID: 4499 Comm: syz-executor152 Not tainted 4.17.0-rc3+ #32 [ 56.549341] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 56.558692] Call Trace: [ 56.561273] dump_stack+0x1b9/0x294 [ 56.564887] ? dump_stack_print_info.cold.2+0x52/0x52 [ 56.570083] ? kernel_text_address+0x79/0xf0 [ 56.574553] ? __unwind_start+0x166/0x330 [ 56.576176] FAULT_INJECTION: forcing a failure. [ 56.576176] name failslab, interval 1, probability 0, space 0, times 0 [ 56.578793] ? __kernel_text_address+0xd/0x40 [ 56.578815] should_fail.cold.4+0xa/0x1a [ 56.578832] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 56.578852] ? save_stack+0xa9/0xd0 [ 56.578872] ? graph_lock+0x170/0x170 [ 56.611031] ? kasan_kmalloc+0xc4/0xe0 [ 56.614913] ? kmem_cache_alloc_trace+0x152/0x780 [ 56.619754] ? kobject_uevent_env+0x20f/0xea0 [ 56.624241] ? kobject_uevent+0x1f/0x30 [ 56.628212] ? device_add+0xb01/0x16d0 [ 56.632094] ? device_create_groups_vargs+0x1ff/0x270 [ 56.637293] ? find_held_lock+0x36/0x1c0 [ 56.641353] ? __lock_is_held+0xb5/0x140 [ 56.645420] ? check_same_owner+0x320/0x320 [ 56.649742] ? do_raw_spin_unlock+0x9e/0x2e0 [ 56.654148] ? rcu_note_context_switch+0x710/0x710 [ 56.659075] __should_failslab+0x124/0x180 [ 56.663305] should_failslab+0x9/0x14 [ 56.667099] __kmalloc+0x2c8/0x760 [ 56.670635] ? kobject_uevent_env+0x20f/0xea0 [ 56.675122] ? rcu_read_lock_sched_held+0x108/0x120 [ 56.680130] ? kobject_get_path+0xc2/0x1a0 [ 56.684362] kobject_get_path+0xc2/0x1a0 [ 56.688417] kobject_uevent_env+0x234/0xea0 [ 56.692732] ? device_pm_add+0x221/0x340 [ 56.696800] kobject_uevent+0x1f/0x30 [ 56.700595] device_add+0xb01/0x16d0 [ 56.704307] ? device_private_init+0x230/0x230 [ 56.708882] ? kfree+0x1e9/0x260 [ 56.712246] ? kfree_const+0x5e/0x70 [ 56.715957] device_create_groups_vargs+0x1ff/0x270 [ 56.720970] device_create_vargs+0x46/0x60 [ 56.725205] bdi_register_va.part.10+0xbb/0x970 [ 56.729870] ? cgwb_kill+0x630/0x630 [ 56.733592] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 56.739119] ? bdi_init+0x416/0x510 [ 56.742739] ? wb_init+0x9e0/0x9e0 [ 56.746274] ? bdi_alloc_node+0x67/0xe0 [ 56.750240] ? bdi_alloc_node+0x67/0xe0 [ 56.754210] ? rcu_read_lock_sched_held+0x108/0x120 [ 56.759220] ? kmem_cache_alloc_node_trace+0x34e/0x770 [ 56.764501] ? _raw_spin_unlock+0x22/0x30 [ 56.768647] bdi_register_va+0x68/0x80 [ 56.772703] super_setup_bdi_name+0x123/0x220 [ 56.777194] ? kill_block_super+0x100/0x100 [ 56.781512] ? kmem_cache_alloc_trace+0x616/0x780 [ 56.786353] ? match_wildcard+0x3c0/0x3c0 [ 56.790495] ? trace_hardirqs_on+0xd/0x10 [ 56.794642] fuse_fill_super+0xe6e/0x1e20 [ 56.799052] ? fuse_get_root_inode+0x190/0x190 [ 56.803632] ? __alloc_pages_slowpath+0x2db0/0x2db0 [ 56.808660] ? kasan_check_read+0x11/0x20 [ 56.812804] ? cap_capable+0x1f9/0x260 [ 56.816691] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 56.822222] ? security_capable+0x99/0xc0 [ 56.826378] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 56.831908] ? ns_capable_common+0x13f/0x170 [ 56.836310] ? get_anon_bdev+0x2f0/0x2f0 [ 56.840362] ? sget+0x113/0x150 [ 56.843636] ? fuse_get_root_inode+0x190/0x190 [ 56.848212] mount_nodev+0x6b/0x110 [ 56.851837] fuse_mount+0x2c/0x40 [ 56.855286] mount_fs+0xae/0x328 [ 56.858649] vfs_kern_mount.part.34+0xd4/0x4d0 [ 56.863227] ? may_umount+0xb0/0xb0 [ 56.866850] ? _raw_read_unlock+0x22/0x30 [ 56.870990] ? __get_fs_type+0x97/0xc0 [ 56.874874] do_mount+0x564/0x3070 [ 56.878412] ? do_raw_spin_unlock+0x9e/0x2e0 [ 56.882815] ? copy_mount_string+0x40/0x40 [ 56.887045] ? rcu_pm_notify+0xc0/0xc0 [ 56.890948] ? copy_mount_options+0x5f/0x380 [ 56.895349] ? rcu_read_lock_sched_held+0x108/0x120 [ 56.900361] ? kmem_cache_alloc_trace+0x616/0x780 [ 56.905202] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 56.910740] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 56.916271] ? copy_mount_options+0x285/0x380 [ 56.920763] ksys_mount+0x12d/0x140 [ 56.924392] __x64_sys_mount+0xbe/0x150 [ 56.928359] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 56.933372] do_syscall_64+0x1b1/0x800 [ 56.937255] ? syscall_slow_exit_work+0x4f0/0x4f0 [ 56.942093] ? syscall_return_slowpath+0x5c0/0x5c0 [ 56.947022] ? syscall_return_slowpath+0x30f/0x5c0 [ 56.951950] ? entry_SYSCALL_64_after_hwframe+0x59/0xbe [ 56.957311] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 56.962151] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 56.967332] RIP: 0033:0x447cd9 [ 56.970512] RSP: 002b:00007fbb431e0828 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 56.978217] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 0000000000447cd9 [ 56.985479] RDX: 00000000004b08f6 RSI: 0000000020000100 RDI: 00000000004c74a5 [ 56.992739] RBP: 000000000000c000 R08: 00007fbb431e0840 R09: 0000000000000000 [ 57.000004] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 57.007268] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 57.014550] CPU: 0 PID: 4500 Comm: syz-executor152 Not tainted 4.17.0-rc3+ #32 [ 57.021925] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 57.031291] Call Trace: [ 57.033893] dump_stack+0x1b9/0x294 [ 57.037533] ? dump_stack_print_info.cold.2+0x52/0x52 [ 57.042738] ? trace_hardirqs_on+0xd/0x10 [ 57.047640] should_fail.cold.4+0xa/0x1a [ 57.051718] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 57.056830] ? graph_lock+0x170/0x170 [ 57.060654] ? graph_lock+0x170/0x170 [ 57.064485] ? lock_downgrade+0x8e0/0x8e0 [ 57.068641] ? find_held_lock+0x36/0x1c0 [ 57.072728] ? check_same_owner+0x320/0x320 [ 57.073727] FAULT_INJECTION: forcing a failure. [ 57.073727] name failslab, interval 1, probability 0, space 0, times 0 [ 57.077056] ? do_raw_spin_unlock+0x9e/0x2e0 [ 57.077075] ? rcu_note_context_switch+0x710/0x710 [ 57.077095] __should_failslab+0x124/0x180 [ 57.077113] should_failslab+0x9/0x14 [ 57.077127] __kmalloc_track_caller+0x2c4/0x760 [ 57.077149] ? may_umount+0xb0/0xb0 [ 57.113871] ? do_mount+0x25e7/0x3070 [ 57.117673] kstrdup+0x39/0x70 [ 57.120865] do_mount+0x25e7/0x3070 [ 57.124489] ? interrupt_entry+0xb1/0xf0 [ 57.128550] ? copy_mount_string+0x40/0x40 [ 57.132781] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 57.137537] ? retint_kernel+0x10/0x10 [ 57.141425] ? copy_mount_options+0x213/0x380 [ 57.146005] ? write_comp_data+0x11/0x70 [ 57.150067] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 57.155602] ? copy_mount_options+0x285/0x380 [ 57.160099] ksys_mount+0x12d/0x140 [ 57.163726] __x64_sys_mount+0xbe/0x150 [ 57.167695] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 57.172708] do_syscall_64+0x1b1/0x800 [ 57.176591] ? syscall_slow_exit_work+0x4f0/0x4f0 [ 57.181432] ? syscall_return_slowpath+0x5c0/0x5c0 [ 57.186359] ? syscall_return_slowpath+0x30f/0x5c0 [ 57.191290] ? entry_SYSCALL_64_after_hwframe+0x59/0xbe [ 57.196658] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 57.201503] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 57.206687] RIP: 0033:0x447cd9 [ 57.209872] RSP: 002b:00007fbb431e0828 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 57.217587] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 0000000000447cd9 [ 57.224853] RDX: 00000000004b08f6 RSI: 0000000020000100 RDI: 00000000004c74a5 [ 57.232114] RBP: 000000000000c000 R08: 00007fbb431e0840 R09: 0000000000000000 [ 57.239379] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 57.246644] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 57.253930] CPU: 1 PID: 4509 Comm: syz-executor152 Not tainted 4.17.0-rc3+ #32 [ 57.261134] FAULT_INJECTION: forcing a failure. [ 57.261134] name failslab, interval 1, probability 0, space 0, times 0 [ 57.261287] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 57.261292] Call Trace: [ 57.261322] dump_stack+0x1b9/0x294 [ 57.288117] ? dump_stack_print_info.cold.2+0x52/0x52 [ 57.293303] ? lock_downgrade+0x8e0/0x8e0 [ 57.297457] should_fail.cold.4+0xa/0x1a [ 57.301519] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 57.306625] ? graph_lock+0x170/0x170 [ 57.310428] ? kernel_text_address+0x79/0xf0 [ 57.314831] ? __unwind_start+0x166/0x330 [ 57.318974] ? __kernel_text_address+0xd/0x40 [ 57.323467] ? find_held_lock+0x36/0x1c0 [ 57.327528] ? __lock_is_held+0xb5/0x140 [ 57.331594] ? check_same_owner+0x320/0x320 [ 57.335909] ? device_create_groups_vargs+0x1ff/0x270 [ 57.341093] ? device_create_vargs+0x46/0x60 [ 57.345498] ? bdi_register_va.part.10+0xbb/0x970 [ 57.350339] ? rcu_note_context_switch+0x710/0x710 [ 57.355267] ? mount_nodev+0x6b/0x110 [ 57.359060] ? fuse_mount+0x2c/0x40 [ 57.362683] ? mount_fs+0xae/0x328 [ 57.366222] __should_failslab+0x124/0x180 [ 57.370454] should_failslab+0x9/0x14 [ 57.374249] kmem_cache_alloc+0x2af/0x760 [ 57.378400] skb_clone+0x1ed/0x4f0 [ 57.381941] ? refcount_add_not_zero+0x310/0x320 [ 57.386692] ? skb_split+0x11d0/0x11d0 [ 57.390575] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 57.395587] ? netlink_trim+0x1b2/0x370 [ 57.399559] ? netlink_skb_destructor+0x210/0x210 [ 57.404399] ? cleanup_uevent_env+0x40/0x40 [ 57.408725] netlink_broadcast_filtered+0x1024/0x1580 [ 57.413920] ? __netlink_sendskb+0xd0/0xd0 [ 57.418161] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 57.423694] ? refcount_inc_not_zero+0x1dd/0x2d0 [ 57.428449] ? refcount_add_not_zero+0x320/0x320 [ 57.433208] ? cleanup_uevent_env+0x40/0x40 [ 57.437527] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 57.442540] kobject_uevent_env+0x6e4/0xea0 [ 57.446858] ? device_pm_add+0x221/0x340 [ 57.450921] kobject_uevent+0x1f/0x30 [ 57.454716] device_add+0xb01/0x16d0 [ 57.458432] ? device_private_init+0x230/0x230 [ 57.463011] ? kfree+0x1e9/0x260 [ 57.466382] ? kfree_const+0x5e/0x70 [ 57.470105] device_create_groups_vargs+0x1ff/0x270 [ 57.475130] device_create_vargs+0x46/0x60 [ 57.479362] bdi_register_va.part.10+0xbb/0x970 [ 57.484030] ? cgwb_kill+0x630/0x630 [ 57.487743] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 57.493275] ? bdi_init+0x416/0x510 [ 57.496896] ? wb_init+0x9e0/0x9e0 [ 57.500692] ? bdi_alloc_node+0x67/0xe0 [ 57.504660] ? bdi_alloc_node+0x67/0xe0 [ 57.508631] ? rcu_read_lock_sched_held+0x108/0x120 [ 57.513645] ? kmem_cache_alloc_node_trace+0x34e/0x770 [ 57.518922] ? _raw_spin_unlock+0x22/0x30 [ 57.523071] bdi_register_va+0x68/0x80 [ 57.526957] super_setup_bdi_name+0x123/0x220 [ 57.531446] ? kill_block_super+0x100/0x100 [ 57.535765] ? kmem_cache_alloc_trace+0x616/0x780 [ 57.540606] ? match_wildcard+0x3c0/0x3c0 [ 57.544751] ? trace_hardirqs_on+0xd/0x10 [ 57.549684] fuse_fill_super+0xe6e/0x1e20 [ 57.553835] ? fuse_get_root_inode+0x190/0x190 [ 57.558420] ? __alloc_pages_slowpath+0x2db0/0x2db0 [ 57.563434] ? kasan_check_read+0x11/0x20 [ 57.567583] ? cap_capable+0x1f9/0x260 [ 57.571470] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 57.577003] ? security_capable+0x99/0xc0 [ 57.581152] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 57.586684] ? ns_capable_common+0x13f/0x170 [ 57.591089] ? get_anon_bdev+0x2f0/0x2f0 [ 57.595143] ? sget+0x113/0x150 [ 57.598426] ? fuse_get_root_inode+0x190/0x190 [ 57.603005] mount_nodev+0x6b/0x110 [ 57.606633] fuse_mount+0x2c/0x40 [ 57.610085] mount_fs+0xae/0x328 [ 57.613450] vfs_kern_mount.part.34+0xd4/0x4d0 [ 57.618028] ? may_umount+0xb0/0xb0 [ 57.621650] ? _raw_read_unlock+0x22/0x30 [ 57.625792] ? __get_fs_type+0x97/0xc0 [ 57.629678] do_mount+0x564/0x3070 [ 57.633220] ? copy_mount_string+0x40/0x40 [ 57.637448] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 57.642464] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 57.647219] ? retint_kernel+0x10/0x10 [ 57.651110] ? copy_mount_options+0x1e3/0x380 [ 57.655599] ? copy_mount_options+0x1f0/0x380 [ 57.660090] ? copy_mount_options+0x1f6/0x380 [ 57.664580] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 57.670114] ? copy_mount_options+0x285/0x380 [ 57.674609] ksys_mount+0x12d/0x140 [ 57.678235] __x64_sys_mount+0xbe/0x150 [ 57.682204] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 57.687220] do_syscall_64+0x1b1/0x800 [ 57.691105] ? finish_task_switch+0x1ca/0x810 [ 57.695598] ? syscall_return_slowpath+0x5c0/0x5c0 [ 57.700522] ? syscall_return_slowpath+0x30f/0x5c0 [ 57.705462] ? entry_SYSCALL_64_after_hwframe+0x59/0xbe [ 57.710826] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 57.715670] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 57.720855] RIP: 0033:0x447cd9 [ 57.724038] RSP: 002b:00007fbb431e0828 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 57.731753] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 0000000000447cd9 [ 57.739018] RDX: 00000000004b08f6 RSI: 0000000020000100 RDI: 00000000004c74a5 [ 57.746281] RBP: 000000000000c000 R08: 00007fbb431e0840 R09: 0000000000000000 [ 57.753543] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 57.760805] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 57.768087] CPU: 0 PID: 4508 Comm: syz-executor152 Not tainted 4.17.0-rc3+ #32 [ 57.775457] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 57.784810] Call Trace: [ 57.787402] dump_stack+0x1b9/0x294 [ 57.791033] ? dump_stack_print_info.cold.2+0x52/0x52 [ 57.796229] ? __lock_is_held+0xb5/0x140 [ 57.800296] ? __account_cfs_rq_runtime+0x600/0x600 [ 57.805322] should_fail.cold.4+0xa/0x1a [ 57.809393] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 57.814497] ? update_load_avg+0x2570/0x2570 [ 57.818915] ? graph_lock+0x170/0x170 [ 57.822722] ? find_held_lock+0x36/0x1c0 [ 57.826785] ? __lock_is_held+0xb5/0x140 [ 57.830856] ? check_same_owner+0x320/0x320 [ 57.835189] ? rcu_note_context_switch+0x710/0x710 [ 57.840122] __should_failslab+0x124/0x180 [ 57.844360] should_failslab+0x9/0x14 [ 57.848162] kmem_cache_alloc+0x2af/0x760 [ 57.852316] ? _raw_spin_unlock_irq+0x27/0x70 [ 57.856816] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 57.861834] __d_alloc+0xc0/0xd30 [ 57.865295] ? shrink_dcache_for_umount+0x290/0x290 [ 57.870314] ? preempt_notifier_register+0x1e0/0x1e0 [ 57.875428] ? debug_check_no_locks_freed+0x310/0x310 [ 57.880630] ? __schedule+0x809/0x1e30 [ 57.884534] d_alloc+0x8e/0x370 [ 57.887818] ? print_usage_bug+0xc0/0xc0 [ 57.891881] ? __d_alloc+0xd30/0xd30 [ 57.895606] d_alloc_parallel+0x152/0x1e80 [ 57.899839] ? kobject_uevent+0x1f/0x30 [ 57.903816] ? graph_lock+0x170/0x170 [ 57.907620] ? __lock_acquire+0x7f5/0x5140 [ 57.911862] ? __d_lookup_rcu+0xa80/0xa80 [ 57.916016] ? print_usage_bug+0xc0/0xc0 [ 57.920074] ? find_held_lock+0x36/0x1c0 [ 57.924141] ? lock_downgrade+0x8e0/0x8e0 [ 57.928294] ? mark_held_locks+0xc9/0x160 [ 57.932705] ? __raw_spin_lock_init+0x1c/0x100 [ 57.937287] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 57.942304] ? __lockdep_init_map+0x105/0x590 [ 57.946800] ? __lockdep_init_map+0x105/0x590 [ 57.951299] ? lockdep_init_map+0x9/0x10 [ 57.955363] ? __init_waitqueue_head+0x96/0x140 [ 57.960029] ? init_wait_entry+0x1b0/0x1b0 [ 57.964262] ? d_alloc_parallel+0x1e80/0x1e80 [ 57.968762] ? lock_release+0xa10/0xa10 [ 57.972731] ? graph_lock+0x170/0x170 [ 57.976534] __lookup_slow+0x1e6/0x540 [ 57.980425] ? vfs_unlink+0x510/0x510 [ 57.984231] ? d_lookup+0x219/0x330 [ 57.987891] lookup_one_len+0x1c7/0x210 [ 57.991872] ? lookup_one_len_unlocked+0xf0/0xf0 [ 57.996631] ? down_write+0x87/0x120 [ 58.000345] ? start_creating+0xb1/0x200 [ 58.004411] ? down_read+0x1b0/0x1b0 [ 58.008128] ? mntput+0x74/0xa0 [ 58.011408] ? simple_pin_fs+0xa4/0x190 [ 58.015390] start_creating+0xc6/0x200 [ 58.019284] debugfs_create_dir+0x23/0x3c0 [ 58.023523] bdi_register_va.part.10+0x318/0x970 [ 58.028283] ? cgwb_kill+0x630/0x630 [ 58.032001] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 58.037539] ? bdi_init+0x416/0x510 [ 58.041168] ? wb_init+0x9e0/0x9e0 [ 58.044713] ? bdi_alloc_node+0x67/0xe0 [ 58.048686] ? bdi_alloc_node+0x67/0xe0 [ 58.052661] ? rcu_read_lock_sched_held+0x108/0x120 [ 58.057683] ? kmem_cache_alloc_node_trace+0x34e/0x770 [ 58.062970] ? _raw_spin_unlock+0x22/0x30 [ 58.067126] bdi_register_va+0x68/0x80 [ 58.071021] super_setup_bdi_name+0x123/0x220 [ 58.075517] ? kill_block_super+0x100/0x100 [ 58.079841] ? kmem_cache_alloc_trace+0x616/0x780 [ 58.084693] ? match_wildcard+0x3c0/0x3c0 [ 58.089026] fuse_fill_super+0xe6e/0x1e20 [ 58.093183] ? fuse_get_root_inode+0x190/0x190 [ 58.097773] ? __alloc_pages_slowpath+0x2db0/0x2db0 [ 58.102795] ? kasan_check_read+0x11/0x20 [ 58.106948] ? cap_capable+0x1f9/0x260 [ 58.110845] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 58.116388] ? security_capable+0x99/0xc0 [ 58.120896] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 58.126435] ? ns_capable_common+0x13f/0x170 [ 58.130845] ? get_anon_bdev+0x2f0/0x2f0 [ 58.134913] ? sget+0x113/0x150 [ 58.138195] ? fuse_get_root_inode+0x190/0x190 [ 58.142783] mount_nodev+0x6b/0x110 [ 58.146413] fuse_mount+0x2c/0x40 [ 58.149874] mount_fs+0xae/0x328 [ 58.153244] vfs_kern_mount.part.34+0xd4/0x4d0 [ 58.157825] ? may_umount+0xb0/0xb0 [ 58.161478] ? _raw_read_unlock+0x22/0x30 [ 58.165624] ? __get_fs_type+0x97/0xc0 [ 58.169517] do_mount+0x564/0x3070 [ 58.173065] ? copy_mount_string+0x40/0x40 [ 58.177303] ? rcu_pm_notify+0xc0/0xc0 [ 58.181219] ? copy_mount_options+0x5f/0x380 [ 58.185627] ? rcu_read_lock_sched_held+0x108/0x120 [ 58.190732] ? kmem_cache_alloc_trace+0x616/0x780 [ 58.195582] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 58.201122] ? _copy_from_user+0xdf/0x150 [ 58.205276] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 58.210813] ? copy_mount_options+0x285/0x380 [ 58.215312] ksys_mount+0x12d/0x140 [ 58.218941] __x64_sys_mount+0xbe/0x150 [ 58.222917] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 58.227935] do_syscall_64+0x1b1/0x800 [ 58.231825] ? finish_task_switch+0x1ca/0x810 [ 58.236326] ? syscall_return_slowpath+0x5c0/0x5c0 [ 58.241255] ? syscall_return_slowpath+0x30f/0x5c0 [ 58.246191] ? entry_SYSCALL_64_after_hwframe+0x59/0xbe [ 58.251558] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 58.256405] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 58.261591] RIP: 0033:0x447cd9 [ 58.264775] RSP: 002b:00007fbb431e0828 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 58.272485] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 0000000000447cd9 [ 58.279753] RDX: 00000000004b08f6 RSI: 0000000020000100 RDI: 00000000004c74a5 [ 58.287021] RBP: 000000000000c000 R08: 00007fbb431e0840 R09: 0000000000000000 [ 58.294288] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 58.301557] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 58.340347] FAULT_INJECTION: forcing a failure. [ 58.340347] name failslab, interval 1, probability 0, space 0, times 0 [ 58.351753] CPU: 0 PID: 4511 Comm: syz-executor152 Not tainted 4.17.0-rc3+ #32 [ 58.359137] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 58.366433] FAULT_INJECTION: forcing a failure. [ 58.366433] name failslab, interval 1, probability 0, space 0, times 0 [ 58.368488] Call Trace: [ 58.368510] dump_stack+0x1b9/0x294 [ 58.368529] ? dump_stack_print_info.cold.2+0x52/0x52 [ 58.368544] ? kernel_text_address+0x79/0xf0 [ 58.368566] ? __unwind_start+0x166/0x330 [ 58.399611] ? __kernel_text_address+0xd/0x40 [ 58.404109] should_fail.cold.4+0xa/0x1a [ 58.408170] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 58.413276] ? save_stack+0xa9/0xd0 [ 58.416898] ? save_stack+0x43/0xd0 [ 58.420522] ? kasan_kmalloc+0xc4/0xe0 [ 58.424403] ? kmem_cache_alloc_trace+0x152/0x780 [ 58.429240] ? kobject_uevent_env+0x20f/0xea0 [ 58.433742] ? kobject_uevent+0x1f/0x30 [ 58.438158] ? device_del+0x6c9/0xb70 [ 58.441952] ? device_unregister+0x15/0x30 [ 58.446186] ? find_held_lock+0x36/0x1c0 [ 58.450257] ? check_same_owner+0x320/0x320 [ 58.454575] ? rcu_note_context_switch+0x710/0x710 [ 58.459499] ? kasan_check_read+0x11/0x20 [ 58.463640] ? rcu_is_watching+0x85/0x140 [ 58.467789] __should_failslab+0x124/0x180 [ 58.472022] should_failslab+0x9/0x14 [ 58.475817] __kmalloc+0x2c8/0x760 [ 58.479357] ? kobject_uevent_env+0x20f/0xea0 [ 58.483852] ? rcu_read_lock_sched_held+0x108/0x120 [ 58.488866] ? kobject_get_path+0xc2/0x1a0 [ 58.493099] kobject_get_path+0xc2/0x1a0 [ 58.497194] kobject_uevent_env+0x234/0xea0 [ 58.501515] ? sysfs_remove_group+0xf6/0x1b0 [ 58.505930] kobject_uevent+0x1f/0x30 [ 58.509739] device_del+0x6c9/0xb70 [ 58.513366] ? __device_links_no_driver+0x320/0x320 [ 58.518378] ? mntput+0x74/0xa0 [ 58.521653] ? simple_release_fs+0xa1/0xd0 [ 58.525884] device_unregister+0x15/0x30 [ 58.529940] bdi_unregister+0x62d/0x8e0 [ 58.533924] ? wb_blkcg_offline+0x140/0x140 [ 58.538247] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 58.543779] ? refcount_sub_and_test+0x212/0x330 [ 58.548536] ? refcount_inc_not_zero+0x2d0/0x2d0 [ 58.553926] ? up_write+0x72/0x210 [ 58.557463] ? up_read+0x110/0x110 [ 58.561003] bdi_put+0x153/0x180 [ 58.564367] generic_shutdown_super+0x3c2/0x520 [ 58.569035] ? destroy_super_rcu+0x200/0x200 [ 58.573441] ? up_write+0x72/0x210 [ 58.576972] ? up_read+0x110/0x110 [ 58.580506] ? down_read+0x1b0/0x1b0 [ 58.584220] ? perf_trace_mm_vmscan_writepage+0x750/0x750 [ 58.589757] kill_anon_super+0x3c/0x50 [ 58.593643] fuse_kill_sb_anon+0x90/0xb0 [ 58.597704] deactivate_locked_super+0x97/0x100 [ 58.602369] deactivate_super+0x188/0x1b0 [ 58.606512] ? super_setup_bdi+0xb0/0xb0 [ 58.610573] cleanup_mnt+0xbf/0x160 [ 58.614195] __cleanup_mnt+0x16/0x20 [ 58.617904] task_work_run+0x1e4/0x290 [ 58.621789] ? task_work_cancel+0x240/0x240 [ 58.626114] ? exit_to_usermode_loop+0x87/0x310 [ 58.630788] exit_to_usermode_loop+0x2bd/0x310 [ 58.635373] ? syscall_slow_exit_work+0x4f0/0x4f0 [ 58.640212] ? ksys_mount+0xa8/0x140 [ 58.643930] do_syscall_64+0x6ac/0x800 [ 58.647821] ? finish_task_switch+0x1ca/0x810 [ 58.652313] ? syscall_return_slowpath+0x5c0/0x5c0 [ 58.657241] ? syscall_return_slowpath+0x30f/0x5c0 [ 58.662168] ? entry_SYSCALL_64_after_hwframe+0x59/0xbe [ 58.667532] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 58.672375] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 58.677560] RIP: 0033:0x447cd9 [ 58.680743] RSP: 002b:00007fbb431e0828 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 58.688447] RAX: ffffffffffffffec RBX: 0000000000000005 RCX: 0000000000447cd9 [ 58.695709] RDX: 00000000004b08f6 RSI: 0000000020000100 RDI: 00000000004c74a5 [ 58.702970] RBP: 000000000000c000 R08: 00007fbb431e0840 R09: 0000000000000000 [ 58.710244] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 58.717505] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 58.724787] CPU: 1 PID: 4515 Comm: syz-executor152 Not tainted 4.17.0-rc3+ #32 [ 58.732157] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 58.741523] Call Trace: [ 58.744144] dump_stack+0x1b9/0x294 [ 58.747788] ? dump_stack_print_info.cold.2+0x52/0x52 [ 58.752988] ? unwind_get_return_address+0x61/0xa0 [ 58.754384] FAULT_INJECTION: forcing a failure. [ 58.754384] name failslab, interval 1, probability 0, space 0, times 0 [ 58.757918] ? __save_stack_trace+0x7e/0xd0 [ 58.757939] should_fail.cold.4+0xa/0x1a [ 58.757955] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 58.757975] ? save_stack+0xa9/0xd0 [ 58.786214] ? save_stack+0x43/0xd0 [ 58.789836] ? kasan_kmalloc+0xc4/0xe0 [ 58.793720] ? kasan_slab_alloc+0x12/0x20 [ 58.797865] ? graph_lock+0x170/0x170 [ 58.801658] ? mount_nodev+0x6b/0x110 [ 58.805451] ? fuse_mount+0x2c/0x40 [ 58.809074] ? mount_fs+0xae/0x328 [ 58.812620] ? vfs_kern_mount.part.34+0xd4/0x4d0 [ 58.817367] ? do_mount+0x564/0x3070 [ 58.821074] ? ksys_mount+0x12d/0x140 [ 58.824870] ? find_held_lock+0x36/0x1c0 [ 58.828929] ? __lock_is_held+0xb5/0x140 [ 58.832995] ? check_same_owner+0x320/0x320 [ 58.837319] ? rcu_note_context_switch+0x710/0x710 [ 58.843116] __should_failslab+0x124/0x180 [ 58.847359] should_failslab+0x9/0x14 [ 58.851154] kmem_cache_alloc_trace+0x2cb/0x780 [ 58.855817] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 58.860829] ? __lockdep_init_map+0x105/0x590 [ 58.865325] fuse_dentry_init+0x45/0xa0 [ 58.869297] ? fuse_create+0x30/0x30 [ 58.873003] __d_alloc+0x6f8/0xd30 [ 58.876543] ? shrink_dcache_for_umount+0x290/0x290 [ 58.881559] ? fuse_change_attributes+0x810/0x810 [ 58.886397] ? _raw_spin_unlock+0x22/0x30 [ 58.890547] ? fuse_get_root_inode+0x121/0x190 [ 58.895124] ? fuse_iget+0x820/0x820 [ 58.898843] d_make_root+0x42/0x90 [ 58.902377] fuse_fill_super+0x120e/0x1e20 [ 58.906614] ? fuse_get_root_inode+0x190/0x190 [ 58.911197] ? __alloc_pages_slowpath+0x2db0/0x2db0 [ 58.916214] ? kasan_check_read+0x11/0x20 [ 58.920360] ? cap_capable+0x1f9/0x260 [ 58.924249] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 58.929781] ? security_capable+0x99/0xc0 [ 58.933926] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 58.939458] ? ns_capable_common+0x13f/0x170 [ 58.943863] ? get_anon_bdev+0x2f0/0x2f0 [ 58.947921] ? sget+0x113/0x150 [ 58.951198] ? fuse_get_root_inode+0x190/0x190 [ 58.955780] mount_nodev+0x6b/0x110 [ 58.959403] fuse_mount+0x2c/0x40 [ 58.962852] mount_fs+0xae/0x328 [ 58.966216] vfs_kern_mount.part.34+0xd4/0x4d0 [ 58.970792] ? may_umount+0xb0/0xb0 [ 58.974430] ? _raw_read_unlock+0x22/0x30 [ 58.978569] ? __get_fs_type+0x97/0xc0 [ 58.982457] do_mount+0x564/0x3070 [ 58.985994] ? copy_mount_string+0x40/0x40 [ 58.990223] ? rcu_pm_notify+0xc0/0xc0 [ 58.994121] ? copy_mount_options+0x5f/0x380 [ 58.998522] ? rcu_read_lock_sched_held+0x108/0x120 [ 59.003620] ? kmem_cache_alloc_trace+0x616/0x780 [ 59.008462] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 59.013996] ? _copy_from_user+0xdf/0x150 [ 59.018142] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 59.023675] ? copy_mount_options+0x285/0x380 [ 59.028167] ksys_mount+0x12d/0x140 [ 59.031791] __x64_sys_mount+0xbe/0x150 [ 59.035759] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 59.040776] do_syscall_64+0x1b1/0x800 [ 59.044665] ? finish_task_switch+0x1ca/0x810 [ 59.049165] ? syscall_return_slowpath+0x5c0/0x5c0 [ 59.054095] ? syscall_return_slowpath+0x30f/0x5c0 [ 59.059027] ? entry_SYSCALL_64_after_hwframe+0x59/0xbe [ 59.064391] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 59.069246] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 59.074427] RIP: 0033:0x447cd9 [ 59.077608] RSP: 002b:00007fbb431e0828 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 59.085311] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 0000000000447cd9 [ 59.092572] RDX: 00000000004b08f6 RSI: 0000000020000100 RDI: 00000000004c74a5 [ 59.099832] RBP: 000000000000c000 R08: 00007fbb431e0840 R09: 0000000000000000 [ 59.107100] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 59.114362] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 59.121654] CPU: 0 PID: 4524 Comm: syz-executor152 Not tainted 4.17.0-rc3+ #32 [ 59.129027] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 59.129784] FAULT_INJECTION: forcing a failure. [ 59.129784] name failslab, interval 1, probability 0, space 0, times 0 [ 59.138373] Call Trace: [ 59.138395] dump_stack+0x1b9/0x294 [ 59.138413] ? dump_stack_print_info.cold.2+0x52/0x52 [ 59.138430] ? trace_hardirqs_on+0xd/0x10 [ 59.138450] should_fail.cold.4+0xa/0x1a [ 59.138472] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 59.174251] ? graph_lock+0x170/0x170 [ 59.178047] ? graph_lock+0x170/0x170 [ 59.181849] ? lock_downgrade+0x8e0/0x8e0 [ 59.185991] ? find_held_lock+0x36/0x1c0 [ 59.190064] ? check_same_owner+0x320/0x320 [ 59.194384] ? do_raw_spin_unlock+0x9e/0x2e0 [ 59.198793] ? rcu_note_context_switch+0x710/0x710 [ 59.203721] __should_failslab+0x124/0x180 [ 59.207956] should_failslab+0x9/0x14 [ 59.211752] __kmalloc_track_caller+0x2c4/0x760 [ 59.216422] ? may_umount+0xb0/0xb0 [ 59.220043] ? do_mount+0x25e7/0x3070 [ 59.223841] kstrdup+0x39/0x70 [ 59.227029] do_mount+0x25e7/0x3070 [ 59.230655] ? copy_mount_string+0x40/0x40 [ 59.234888] ? rcu_pm_notify+0xc0/0xc0 [ 59.238784] ? copy_mount_options+0x5f/0x380 [ 59.243188] ? rcu_read_lock_sched_held+0x108/0x120 [ 59.248201] ? kmem_cache_alloc_trace+0x616/0x780 [ 59.253044] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 59.258578] ? _copy_from_user+0xdf/0x150 [ 59.262727] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 59.268255] ? copy_mount_options+0x285/0x380 [ 59.272745] ksys_mount+0x12d/0x140 [ 59.276373] __x64_sys_mount+0xbe/0x150 [ 59.280343] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 59.285357] do_syscall_64+0x1b1/0x800 [ 59.289238] ? finish_task_switch+0x1ca/0x810 [ 59.293731] ? syscall_return_slowpath+0x5c0/0x5c0 [ 59.298665] ? syscall_return_slowpath+0x30f/0x5c0 [ 59.303593] ? entry_SYSCALL_64_after_hwframe+0x59/0xbe [ 59.308959] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 59.313805] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 59.318986] RIP: 0033:0x447cd9 [ 59.322167] RSP: 002b:00007fbb431e0828 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 59.329969] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 0000000000447cd9 [ 59.337233] RDX: 00000000004b08f6 RSI: 0000000020000100 RDI: 00000000004c74a5 [ 59.344498] RBP: 000000000000c000 R08: 00007fbb431e0840 R09: 0000000000000000 [ 59.351762] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 59.359025] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 59.366308] CPU: 1 PID: 4520 Comm: syz-executor152 Not tainted 4.17.0-rc3+ #32 [ 59.371765] FAULT_INJECTION: forcing a failure. [ 59.371765] name failslab, interval 1, probability 0, space 0, times 0 [ 59.373666] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 59.373672] Call Trace: [ 59.373691] dump_stack+0x1b9/0x294 [ 59.373707] ? dump_stack_print_info.cold.2+0x52/0x52 [ 59.373730] ? rcu_bh_force_quiescent_state+0x20/0x20 [ 59.410771] should_fail.cold.4+0xa/0x1a [ 59.414834] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 59.419933] ? __unwind_start+0x166/0x330 [ 59.424075] ? __kernel_text_address+0xd/0x40 [ 59.428565] ? unwind_get_return_address+0x61/0xa0 [ 59.433490] ? graph_lock+0x170/0x170 [ 59.437288] ? graph_lock+0x170/0x170 [ 59.441087] ? find_held_lock+0x36/0x1c0 [ 59.445145] ? __lock_is_held+0xb5/0x140 [ 59.449213] ? check_same_owner+0x320/0x320 [ 59.453532] ? rcu_note_context_switch+0x710/0x710 [ 59.458460] __should_failslab+0x124/0x180 [ 59.462693] should_failslab+0x9/0x14 [ 59.466490] kmem_cache_alloc_trace+0x2cb/0x780 [ 59.471156] ? __legitimize_mnt+0x86/0x130 [ 59.475390] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 59.480927] get_mountpoint+0x14f/0x400 [ 59.484900] ? namespace_unlock+0x1f0/0x1f0 [ 59.489219] ? down_read+0x1b0/0x1b0 [ 59.492944] ? rcu_read_lock_sched_held+0x108/0x120 [ 59.497961] lock_mount+0xfa/0x2e0 [ 59.501503] do_add_mount+0x27/0x370 [ 59.505220] do_mount+0x18e6/0x3070 [ 59.508855] ? copy_mount_string+0x40/0x40 [ 59.513086] ? rcu_pm_notify+0xc0/0xc0 [ 59.516981] ? copy_mount_options+0x5f/0x380 [ 59.521384] ? rcu_read_lock_sched_held+0x108/0x120 [ 59.526396] ? kmem_cache_alloc_trace+0x616/0x780 [ 59.531236] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 59.536777] ? _copy_from_user+0xdf/0x150 [ 59.540924] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 59.546455] ? copy_mount_options+0x285/0x380 [ 59.550952] ksys_mount+0x12d/0x140 [ 59.554577] __x64_sys_mount+0xbe/0x150 [ 59.558548] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 59.563562] do_syscall_64+0x1b1/0x800 [ 59.567445] ? finish_task_switch+0x1ca/0x810 [ 59.571941] ? syscall_return_slowpath+0x5c0/0x5c0 [ 59.576868] ? syscall_return_slowpath+0x30f/0x5c0 [ 59.581796] ? entry_SYSCALL_64_after_hwframe+0x59/0xbe [ 59.587160] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 59.592004] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 59.597188] RIP: 0033:0x447cd9 [ 59.600370] RSP: 002b:00007fbb431e0828 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 59.608074] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 0000000000447cd9 [ 59.615337] RDX: 00000000004b08f6 RSI: 0000000020000100 RDI: 00000000004c74a5 [ 59.622600] RBP: 000000000000c000 R08: 00007fbb431e0840 R09: 0000000000000000 [ 59.629863] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 59.637128] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 59.644415] CPU: 0 PID: 4523 Comm: syz-executor152 Not tainted 4.17.0-rc3+ #32 [ 59.651786] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 59.657815] FAULT_INJECTION: forcing a failure. [ 59.657815] name failslab, interval 1, probability 0, space 0, times 0 [ 59.661135] Call Trace: [ 59.661158] dump_stack+0x1b9/0x294 [ 59.661174] ? dump_stack_print_info.cold.2+0x52/0x52 [ 59.661198] ? unwind_get_return_address+0x61/0xa0 [ 59.688651] ? __save_stack_trace+0x7e/0xd0 [ 59.692976] should_fail.cold.4+0xa/0x1a [ 59.697034] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 59.702133] ? save_stack+0xa9/0xd0 [ 59.705757] ? save_stack+0x43/0xd0 [ 59.709377] ? kasan_kmalloc+0xc4/0xe0 [ 59.713260] ? kasan_slab_alloc+0x12/0x20 [ 59.717405] ? graph_lock+0x170/0x170 [ 59.721202] ? mount_nodev+0x6b/0x110 [ 59.724997] ? fuse_mount+0x2c/0x40 [ 59.728619] ? mount_fs+0xae/0x328 [ 59.732155] ? vfs_kern_mount.part.34+0xd4/0x4d0 [ 59.736902] ? do_mount+0x564/0x3070 [ 59.740610] ? ksys_mount+0x12d/0x140 [ 59.744410] ? find_held_lock+0x36/0x1c0 [ 59.748474] ? __lock_is_held+0xb5/0x140 [ 59.752542] ? check_same_owner+0x320/0x320 [ 59.756864] ? rcu_note_context_switch+0x710/0x710 [ 59.761796] __should_failslab+0x124/0x180 [ 59.766031] should_failslab+0x9/0x14 [ 59.769832] kmem_cache_alloc_trace+0x2cb/0x780 [ 59.774497] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 59.779510] ? __lockdep_init_map+0x105/0x590 [ 59.784009] fuse_dentry_init+0x45/0xa0 [ 59.787982] ? fuse_create+0x30/0x30 [ 59.791694] __d_alloc+0x6f8/0xd30 [ 59.795239] ? shrink_dcache_for_umount+0x290/0x290 [ 59.800258] ? fuse_change_attributes+0x810/0x810 [ 59.805100] ? _raw_spin_unlock+0x22/0x30 [ 59.809251] ? fuse_get_root_inode+0x121/0x190 [ 59.814609] ? fuse_iget+0x820/0x820 [ 59.818330] d_make_root+0x42/0x90 [ 59.821866] fuse_fill_super+0x120e/0x1e20 [ 59.826101] ? fuse_get_root_inode+0x190/0x190 [ 59.830680] ? __alloc_pages_slowpath+0x2db0/0x2db0 [ 59.835694] ? kasan_check_read+0x11/0x20 [ 59.839854] ? cap_capable+0x1f9/0x260 [ 59.843750] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 59.849281] ? security_capable+0x99/0xc0 [ 59.853428] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 59.858964] ? ns_capable_common+0x13f/0x170 [ 59.863372] ? get_anon_bdev+0x2f0/0x2f0 [ 59.867427] ? sget+0x113/0x150 [ 59.870704] ? fuse_get_root_inode+0x190/0x190 [ 59.875286] mount_nodev+0x6b/0x110 [ 59.878923] fuse_mount+0x2c/0x40 [ 59.882375] mount_fs+0xae/0x328 [ 59.885745] vfs_kern_mount.part.34+0xd4/0x4d0 [ 59.890323] ? may_umount+0xb0/0xb0 [ 59.893948] ? _raw_read_unlock+0x22/0x30 [ 59.898088] ? __get_fs_type+0x97/0xc0 [ 59.901976] do_mount+0x564/0x3070 [ 59.905514] ? copy_mount_string+0x40/0x40 [ 59.909746] ? rcu_pm_notify+0xc0/0xc0 [ 59.913633] ? copy_mount_options+0x5f/0x380 [ 59.918036] ? rcu_read_lock_sched_held+0x108/0x120 [ 59.923045] ? kmem_cache_alloc_trace+0x616/0x780 [ 59.927888] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 59.933417] ? _copy_from_user+0xdf/0x150 [ 59.937564] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 59.943123] ? copy_mount_options+0x285/0x380 [ 59.947615] ksys_mount+0x12d/0x140 [ 59.951241] __x64_sys_mount+0xbe/0x150 [ 59.955209] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 59.960222] do_syscall_64+0x1b1/0x800 [ 59.964102] ? finish_task_switch+0x1ca/0x810 [ 59.968594] ? syscall_return_slowpath+0x5c0/0x5c0 [ 59.973532] ? syscall_return_slowpath+0x30f/0x5c0 [ 59.978459] ? entry_SYSCALL_64_after_hwframe+0x59/0xbe [ 59.983821] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 59.988662] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 59.993844] RIP: 0033:0x447cd9 [ 59.997027] RSP: 002b:00007fbb431e0828 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 60.004734] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 0000000000447cd9 [ 60.012000] RDX: 00000000004b08f6 RSI: 0000000020000100 RDI: 00000000004c74a5 [ 60.019276] RBP: 000000000000c000 R08: 00007fbb431e0840 R09: 0000000000000000 [ 60.026539] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 60.033798] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 60.041080] CPU: 1 PID: 4521 Comm: syz-executor152 Not tainted 4.17.0-rc3+ #32 [ 60.048457] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 60.052296] FAULT_INJECTION: forcing a failure. [ 60.052296] name failslab, interval 1, probability 0, space 0, times 0 [ 60.057824] Call Trace: [ 60.057846] dump_stack+0x1b9/0x294 [ 60.057864] ? dump_stack_print_info.cold.2+0x52/0x52 [ 60.057880] ? __save_stack_trace+0x7e/0xd0 [ 60.057903] should_fail.cold.4+0xa/0x1a [ 60.088765] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 60.093864] ? save_stack+0x43/0xd0 [ 60.097486] ? kasan_kmalloc+0xc4/0xe0 [ 60.101366] ? kasan_slab_alloc+0x12/0x20 [ 60.105505] ? kmem_cache_alloc+0x12e/0x760 [ 60.109819] ? fuse_alloc_inode+0x96/0x4f0 [ 60.114049] ? alloc_inode+0x63/0x190 [ 60.117845] ? iget5_locked+0x20e/0x570 [ 60.121819] ? graph_lock+0x170/0x170 [ 60.125614] ? print_usage_bug+0xc0/0xc0 [ 60.129668] ? vfs_kern_mount.part.34+0xd4/0x4d0 [ 60.134419] ? do_mount+0x564/0x3070 [ 60.138126] ? ksys_mount+0x12d/0x140 [ 60.141926] ? __x64_sys_mount+0xbe/0x150 [ 60.146071] ? find_held_lock+0x36/0x1c0 [ 60.150132] ? __lock_is_held+0xb5/0x140 [ 60.154203] ? check_same_owner+0x320/0x320 [ 60.158514] ? __mutex_init+0x1ef/0x280 [ 60.162484] ? rcu_note_context_switch+0x710/0x710 [ 60.167405] ? __ia32_sys_membarrier+0x150/0x150 [ 60.172159] __should_failslab+0x124/0x180 [ 60.176397] should_failslab+0x9/0x14 [ 60.180196] kmem_cache_alloc_trace+0x2cb/0x780 [ 60.184856] ? init_wait_entry+0x1b0/0x1b0 [ 60.189092] fuse_alloc_inode+0x3ae/0x4f0 [ 60.193238] ? fuse_dev_alloc+0x4e0/0x4e0 [ 60.197378] ? lock_downgrade+0x8e0/0x8e0 [ 60.201524] ? kasan_check_read+0x11/0x20 [ 60.205668] ? do_raw_spin_unlock+0x9e/0x2e0 [ 60.210072] ? do_raw_spin_trylock+0x1b0/0x1b0 [ 60.214650] ? kasan_check_write+0x14/0x20 [ 60.218882] ? find_inode.isra.19+0xc3/0x1d0 [ 60.223292] ? fuse_dev_alloc+0x4e0/0x4e0 [ 60.227437] alloc_inode+0x63/0x190 [ 60.231058] iget5_locked+0x20e/0x570 [ 60.234853] ? fuse_inode_eq+0x80/0x80 [ 60.238733] ? fuse_init_file_inode+0x70/0x70 [ 60.243222] ? inode_lru_isolate+0x580/0x580 [ 60.247623] ? cgwb_kill+0x630/0x630 [ 60.251332] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 60.256861] ? print_usage_bug+0xc0/0xc0 [ 60.260920] fuse_iget+0x1cc/0x820 [ 60.264457] ? fuse_change_attributes+0x810/0x810 [ 60.269295] ? _raw_spin_unlock+0x22/0x30 [ 60.273443] fuse_get_root_inode+0x121/0x190 [ 60.277846] ? fuse_iget+0x820/0x820 [ 60.281562] ? _raw_spin_unlock_bh+0x30/0x40 [ 60.285965] ? bdi_set_max_ratio+0x112/0x150 [ 60.290382] fuse_fill_super+0x11e0/0x1e20 [ 60.294617] ? fuse_get_root_inode+0x190/0x190 [ 60.299202] ? __alloc_pages_slowpath+0x2db0/0x2db0 [ 60.304226] ? kasan_check_read+0x11/0x20 [ 60.308376] ? cap_capable+0x1f9/0x260 [ 60.312263] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 60.317797] ? security_capable+0x99/0xc0 [ 60.321944] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 60.327479] ? ns_capable_common+0x13f/0x170 [ 60.331890] ? get_anon_bdev+0x2f0/0x2f0 [ 60.335946] ? sget+0x113/0x150 [ 60.339226] ? fuse_get_root_inode+0x190/0x190 [ 60.343808] mount_nodev+0x6b/0x110 [ 60.347430] fuse_mount+0x2c/0x40 [ 60.350881] mount_fs+0xae/0x328 [ 60.354248] vfs_kern_mount.part.34+0xd4/0x4d0 [ 60.358828] ? may_umount+0xb0/0xb0 [ 60.362453] ? _raw_read_unlock+0x22/0x30 [ 60.366594] ? __get_fs_type+0x97/0xc0 [ 60.370480] do_mount+0x564/0x3070 [ 60.374014] ? do_raw_spin_unlock+0x9e/0x2e0 [ 60.378420] ? copy_mount_string+0x40/0x40 [ 60.382651] ? rcu_pm_notify+0xc0/0xc0 [ 60.386541] ? copy_mount_options+0x5f/0x380 [ 60.390943] ? rcu_read_lock_sched_held+0x108/0x120 [ 60.395956] ? kmem_cache_alloc_trace+0x616/0x780 [ 60.400799] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 60.406338] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 60.411871] ? copy_mount_options+0x285/0x380 [ 60.416365] ksys_mount+0x12d/0x140 [ 60.419988] __x64_sys_mount+0xbe/0x150 [ 60.423959] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 60.428970] do_syscall_64+0x1b1/0x800 [ 60.432852] ? finish_task_switch+0x1ca/0x810 [ 60.437346] ? syscall_return_slowpath+0x5c0/0x5c0 [ 60.442270] ? syscall_return_slowpath+0x30f/0x5c0 [ 60.447201] ? entry_SYSCALL_64_after_hwframe+0x59/0xbe [ 60.452562] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 60.457401] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 60.462583] RIP: 0033:0x447cd9 [ 60.465766] RSP: 002b:00007fbb431e0828 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 60.473470] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 0000000000447cd9 [ 60.480739] RDX: 00000000004b08f6 RSI: 0000000020000100 RDI: 00000000004c74a5 [ 60.488001] RBP: 000000000000c000 R08: 00007fbb431e0840 R09: 0000000000000000 [ 60.495264] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 60.502525] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 60.509809] CPU: 0 PID: 4527 Comm: syz-executor152 Not tainted 4.17.0-rc3+ #32 [ 60.517174] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 60.526535] Call Trace: [ 60.529133] dump_stack+0x1b9/0x294 [ 60.532769] ? dump_stack_print_info.cold.2+0x52/0x52 [ 60.537969] ? unwind_get_return_address+0x61/0xa0 [ 60.542902] ? __save_stack_trace+0x7e/0xd0 [ 60.547230] should_fail.cold.4+0xa/0x1a [ 60.551292] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 60.556391] ? save_stack+0xa9/0xd0 [ 60.560020] ? save_stack+0x43/0xd0 [ 60.563648] ? kasan_kmalloc+0xc4/0xe0 [ 60.567540] ? kasan_slab_alloc+0x12/0x20 [ 60.571702] ? graph_lock+0x170/0x170 [ 60.575497] ? mount_nodev+0x6b/0x110 [ 60.579296] ? fuse_mount+0x2c/0x40 [ 60.582920] ? mount_fs+0xae/0x328 [ 60.586460] ? vfs_kern_mount.part.34+0xd4/0x4d0 [ 60.591211] ? do_mount+0x564/0x3070 [ 60.594924] ? ksys_mount+0x12d/0x140 [ 60.598725] ? find_held_lock+0x36/0x1c0 [ 60.602787] ? __lock_is_held+0xb5/0x140 [ 60.606859] ? check_same_owner+0x320/0x320 [ 60.611183] ? rcu_note_context_switch+0x710/0x710 [ 60.616113] __should_failslab+0x124/0x180 [ 60.620352] should_failslab+0x9/0x14 [ 60.624149] kmem_cache_alloc_trace+0x2cb/0x780 [ 60.628818] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 60.633835] ? __lockdep_init_map+0x105/0x590 [ 60.638335] fuse_dentry_init+0x45/0xa0 [ 60.642305] ? fuse_create+0x30/0x30 [ 60.646018] __d_alloc+0x6f8/0xd30 [ 60.649563] ? shrink_dcache_for_umount+0x290/0x290 [ 60.654583] ? fuse_change_attributes+0x810/0x810 [ 60.659423] ? _raw_spin_unlock+0x22/0x30 [ 60.663577] ? fuse_get_root_inode+0x121/0x190 [ 60.668155] ? fuse_iget+0x820/0x820 [ 60.671876] d_make_root+0x42/0x90 [ 60.675414] fuse_fill_super+0x120e/0x1e20 [ 60.679659] ? fuse_get_root_inode+0x190/0x190 [ 60.684245] ? __alloc_pages_slowpath+0x2db0/0x2db0 [ 60.689261] ? kasan_check_read+0x11/0x20 [ 60.693408] ? cap_capable+0x1f9/0x260 [ 60.697299] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 60.702834] ? security_capable+0x99/0xc0 [ 60.706984] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 60.712515] ? ns_capable_common+0x13f/0x170 [ 60.716924] ? get_anon_bdev+0x2f0/0x2f0 [ 60.720983] ? sget+0x113/0x150 [ 60.724264] ? fuse_get_root_inode+0x190/0x190 [ 60.728844] mount_nodev+0x6b/0x110 [ 60.732473] fuse_mount+0x2c/0x40 [ 60.735924] mount_fs+0xae/0x328 [ 60.739292] vfs_kern_mount.part.34+0xd4/0x4d0 [ 60.743875] ? may_umount+0xb0/0xb0 [ 60.747504] ? _raw_read_unlock+0x22/0x30 [ 60.751651] ? __get_fs_type+0x97/0xc0 [ 60.755540] do_mount+0x564/0x3070 [ 60.759079] ? do_raw_spin_unlock+0x9e/0x2e0 [ 60.763488] ? copy_mount_string+0x40/0x40 [ 60.767724] ? rcu_pm_notify+0xc0/0xc0 [ 60.771618] ? copy_mount_options+0x5f/0x380 [ 60.776028] ? rcu_read_lock_sched_held+0x108/0x120 [ 60.781657] ? kmem_cache_alloc_trace+0x616/0x780 [ 60.786504] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 60.792044] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 60.797577] ? copy_mount_options+0x285/0x380 [ 60.802072] ksys_mount+0x12d/0x140 [ 60.805700] __x64_sys_mount+0xbe/0x150 [ 60.809672] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 60.814687] do_syscall_64+0x1b1/0x800 [ 60.818571] ? finish_task_switch+0x1ca/0x810 [ 60.823065] ? syscall_return_slowpath+0x5c0/0x5c0 [ 60.827996] ? syscall_return_slowpath+0x30f/0x5c0 [ 60.832930] ? entry_SYSCALL_64_after_hwframe+0x59/0xbe [ 60.838295] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 60.843142] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 60.848323] RIP: 0033:0x447cd9 [ 60.851507] RSP: 002b:00007fbb431e0828 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 60.859217] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 0000000000447cd9 [ 60.866479] RDX: 00000000004b08f6 RSI: 0000000020000100 RDI: 00000000004c74a5 [ 60.873743] RBP: 000000000000c000 R08: 00007fbb431e0840 R09: 0000000000000000 [ 60.881007] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 60.888270] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 60.896381] FAULT_INJECTION: forcing a failure. [ 60.896381] name failslab, interval 1, probability 0, space 0, times 0 [ 60.906121] FAULT_INJECTION: forcing a failure. [ 60.906121] name failslab, interval 1, probability 0, space 0, times 0 [ 60.907641] CPU: 1 PID: 4530 Comm: syz-executor152 Not tainted 4.17.0-rc3+ #32 [ 60.926160] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 60.936806] Call Trace: [ 60.939391] dump_stack+0x1b9/0x294 [ 60.943017] ? dump_stack_print_info.cold.2+0x52/0x52 [ 60.948204] ? __might_sleep+0x95/0x190 [ 60.952177] should_fail.cold.4+0xa/0x1a [ 60.956232] ? graph_lock+0x170/0x170 [ 60.960054] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 60.965157] ? mutex_trylock+0x2a0/0x2a0 [ 60.969209] ? graph_lock+0x170/0x170 [ 60.973013] ? find_held_lock+0x36/0x1c0 [ 60.977068] ? find_held_lock+0x36/0x1c0 [ 60.981132] ? retint_kernel+0x10/0x10 [ 60.985014] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 60.990030] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 60.994792] ? __should_failslab+0x9c/0x180 [ 60.999107] ? __should_failslab+0xea/0x180 [ 61.003426] __should_failslab+0x124/0x180 [ 61.007662] should_failslab+0x9/0x14 [ 61.011456] kmem_cache_alloc_trace+0x2cb/0x780 [ 61.016130] ? device_pm_check_callbacks+0x116/0x3f0 [ 61.021229] ? driver_deferred_probe_add_trigger+0x140/0x140 [ 61.027025] ? device_create_file+0x1e0/0x1e0 [ 61.031511] kobject_uevent_env+0x20f/0xea0 [ 61.035830] ? sysfs_remove_group+0xf6/0x1b0 [ 61.040239] kobject_uevent+0x1f/0x30 [ 61.044033] device_del+0x6c9/0xb70 [ 61.047672] ? __device_links_no_driver+0x320/0x320 [ 61.052684] ? mntput+0x74/0xa0 [ 61.055957] ? simple_release_fs+0xa1/0xd0 [ 61.060187] device_unregister+0x15/0x30 [ 61.064244] bdi_unregister+0x62d/0x8e0 [ 61.068215] ? wb_blkcg_offline+0x140/0x140 [ 61.072540] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 61.078074] ? refcount_sub_and_test+0x212/0x330 [ 61.082828] ? refcount_inc_not_zero+0x2d0/0x2d0 [ 61.087583] ? up_write+0x72/0x210 [ 61.091122] ? up_read+0x110/0x110 [ 61.094660] bdi_put+0x153/0x180 [ 61.098024] generic_shutdown_super+0x3c2/0x520 [ 61.102690] ? destroy_super_rcu+0x200/0x200 [ 61.107093] ? up_write+0x72/0x210 [ 61.110627] ? up_read+0x110/0x110 [ 61.114163] ? down_read+0x1b0/0x1b0 [ 61.117873] ? perf_trace_mm_vmscan_writepage+0x750/0x750 [ 61.123405] kill_anon_super+0x3c/0x50 [ 61.127289] fuse_kill_sb_anon+0x90/0xb0 [ 61.131343] deactivate_locked_super+0x97/0x100 [ 61.136007] deactivate_super+0x188/0x1b0 [ 61.140153] ? super_setup_bdi+0xb0/0xb0 [ 61.144213] cleanup_mnt+0xbf/0x160 [ 61.147832] __cleanup_mnt+0x16/0x20 [ 61.151540] task_work_run+0x1e4/0x290 [ 61.155428] ? task_work_cancel+0x240/0x240 [ 61.159744] ? exit_to_usermode_loop+0x87/0x310 [ 61.164411] exit_to_usermode_loop+0x2bd/0x310 [ 61.168988] ? syscall_slow_exit_work+0x4f0/0x4f0 [ 61.173825] ? ksys_mount+0xa8/0x140 [ 61.177539] do_syscall_64+0x6ac/0x800 [ 61.181418] ? finish_task_switch+0x1ca/0x810 [ 61.185908] ? syscall_return_slowpath+0x5c0/0x5c0 [ 61.190835] ? syscall_return_slowpath+0x30f/0x5c0 [ 61.195761] ? entry_SYSCALL_64_after_hwframe+0x59/0xbe [ 61.201124] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 61.205963] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 61.211142] RIP: 0033:0x447cd9 [ 61.214322] RSP: 002b:00007fbb431e0828 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 61.222026] RAX: ffffffffffffffec RBX: 0000000000000005 RCX: 0000000000447cd9 [ 61.229287] RDX: 00000000004b08f6 RSI: 0000000020000100 RDI: 00000000004c74a5 [ 61.236550] RBP: 000000000000c000 R08: 00007fbb431e0840 R09: 0000000000000000 [ 61.243812] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 61.251073] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 61.258356] CPU: 0 PID: 4531 Comm: syz-executor152 Not tainted 4.17.0-rc3+ #32 [ 61.258544] ================================================================== [ 61.265719] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 61.273060] BUG: KASAN: use-after-free in __lock_acquire+0x3888/0x5140 [ 61.273074] Read of size 8 at addr ffff8801b75554c8 by task syz-executor152/4523 [ 61.282400] Call Trace: [ 61.289031] [ 61.300726] dump_stack+0x1b9/0x294 [ 61.304350] ? dump_stack_print_info.cold.2+0x52/0x52 [ 61.309532] ? trace_hardirqs_on+0xd/0x10 [ 61.313675] should_fail.cold.4+0xa/0x1a [ 61.317733] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 61.322825] ? graph_lock+0x170/0x170 [ 61.326623] ? graph_lock+0x170/0x170 [ 61.330418] ? lock_downgrade+0x8e0/0x8e0 [ 61.334561] ? find_held_lock+0x36/0x1c0 [ 61.338635] ? check_same_owner+0x320/0x320 [ 61.342951] ? do_raw_spin_unlock+0x9e/0x2e0 [ 61.347358] ? rcu_note_context_switch+0x710/0x710 [ 61.352284] __should_failslab+0x124/0x180 [ 61.356517] should_failslab+0x9/0x14 [ 61.360309] __kmalloc_track_caller+0x2c4/0x760 [ 61.364972] ? may_umount+0xb0/0xb0 [ 61.368590] ? do_mount+0x25e7/0x3070 [ 61.372399] kstrdup+0x39/0x70 [ 61.375582] do_mount+0x25e7/0x3070 [ 61.379208] ? copy_mount_string+0x40/0x40 [ 61.383435] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 61.388440] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 61.393187] ? retint_kernel+0x10/0x10 [ 61.397070] ? copy_mount_options+0x1a1/0x380 [ 61.401556] ? copy_mount_options+0x1c4/0x380 [ 61.406045] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 61.411569] ? copy_mount_options+0x285/0x380 [ 61.416059] ksys_mount+0x12d/0x140 [ 61.419680] __x64_sys_mount+0xbe/0x150 [ 61.423642] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 61.428663] do_syscall_64+0x1b1/0x800 [ 61.432541] ? finish_task_switch+0x1ca/0x810 [ 61.437027] ? syscall_return_slowpath+0x5c0/0x5c0 [ 61.441949] ? syscall_return_slowpath+0x30f/0x5c0 [ 61.446874] ? entry_SYSCALL_64_after_hwframe+0x59/0xbe [ 61.452231] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 61.457067] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 61.462244] RIP: 0033:0x447cd9 [ 61.465423] RSP: 002b:00007fbb431e0828 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 61.473121] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 0000000000447cd9 [ 61.480378] RDX: 00000000004b08f6 RSI: 0000000020000100 RDI: 00000000004c74a5 [ 61.487637] RBP: 000000000000c000 R08: 00007fbb431e0840 R09: 0000000000000000 [ 61.494893] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 61.502152] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 61.509430] CPU: 1 PID: 4523 Comm: syz-executor152 Not tainted 4.17.0-rc3+ #32 [ 61.516799] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 61.526155] Call Trace: [ 61.528751] dump_stack+0x1b9/0x294 [ 61.532417] ? dump_stack_print_info.cold.2+0x52/0x52 [ 61.537605] ? printk+0x9e/0xba [ 61.540880] ? kmsg_dump_rewind_nolock+0xe4/0xe4 [ 61.545633] ? kasan_check_write+0x14/0x20 [ 61.549863] print_address_description+0x6c/0x20b [ 61.554701] ? __lock_acquire+0x3888/0x5140 [ 61.559021] kasan_report.cold.7+0x242/0x2fe [ 61.563427] __asan_report_load8_noabort+0x14/0x20 [ 61.568349] __lock_acquire+0x3888/0x5140 [ 61.572493] ? lock_downgrade+0x8e0/0x8e0 [ 61.576641] ? kasan_check_read+0x11/0x20 [ 61.580787] ? rcu_is_watching+0x85/0x140 [ 61.584930] ? debug_check_no_locks_freed+0x310/0x310 [ 61.590115] ? is_bpf_text_address+0xd7/0x170 [ 61.594605] ? kernel_text_address+0x79/0xf0 [ 61.599007] ? __unwind_start+0x166/0x330 [ 61.603149] ? __kernel_text_address+0xd/0x40 [ 61.607639] ? unwind_get_return_address+0x61/0xa0 [ 61.612564] ? __save_stack_trace+0x7e/0xd0 [ 61.616884] ? save_stack+0xa9/0xd0 [ 61.620503] ? save_stack+0x43/0xd0 [ 61.624126] ? __kasan_slab_free+0x11a/0x170 [ 61.628529] ? kasan_slab_free+0xe/0x10 [ 61.632493] ? kfree+0xd9/0x260 [ 61.635765] ? unregister_shrinker+0x216/0x3a0 [ 61.640345] ? deactivate_locked_super+0x70/0x100 [ 61.645181] ? mount_nodev+0xfa/0x110 [ 61.648975] ? fuse_mount+0x2c/0x40 [ 61.652596] ? mount_fs+0xae/0x328 [ 61.656133] ? vfs_kern_mount.part.34+0xd4/0x4d0 [ 61.660882] ? do_mount+0x564/0x3070 [ 61.664595] ? ksys_mount+0x12d/0x140 [ 61.668407] ? graph_lock+0x170/0x170 [ 61.672207] ? kasan_check_read+0x11/0x20 [ 61.676349] ? do_raw_spin_unlock+0x9e/0x2e0 [ 61.680752] ? do_raw_spin_trylock+0x1b0/0x1b0 [ 61.685330] ? print_usage_bug+0xc0/0xc0 [ 61.689385] ? kasan_check_write+0x14/0x20 [ 61.693616] ? do_raw_spin_lock+0xc1/0x200 [ 61.697845] lock_acquire+0x1dc/0x520 [ 61.701639] ? fuse_kill_sb_anon+0x50/0xb0 [ 61.705866] ? lock_release+0xa10/0xa10 [ 61.709835] ? check_same_owner+0x320/0x320 [ 61.714147] ? quarantine_put+0xeb/0x190 [ 61.718203] ? rcu_note_context_switch+0x710/0x710 [ 61.723126] ? __might_sleep+0x95/0x190 [ 61.727095] down_write+0x87/0x120 [ 61.730629] ? fuse_kill_sb_anon+0x50/0xb0 [ 61.734856] ? down_read+0x1b0/0x1b0 [ 61.738567] ? perf_trace_mm_vmscan_writepage+0x750/0x750 [ 61.744098] fuse_kill_sb_anon+0x50/0xb0 [ 61.748157] deactivate_locked_super+0x97/0x100 [ 61.752819] ? fuse_get_root_inode+0x190/0x190 [ 61.757394] mount_nodev+0xfa/0x110 [ 61.761016] fuse_mount+0x2c/0x40 [ 61.764462] mount_fs+0xae/0x328 [ 61.767824] vfs_kern_mount.part.34+0xd4/0x4d0 [ 61.772398] ? may_umount+0xb0/0xb0 [ 61.776019] ? _raw_read_unlock+0x22/0x30 [ 61.780160] ? __get_fs_type+0x97/0xc0 [ 61.784044] do_mount+0x564/0x3070 [ 61.787584] ? copy_mount_string+0x40/0x40 [ 61.791816] ? rcu_pm_notify+0xc0/0xc0 [ 61.795698] ? copy_mount_options+0x5f/0x380 [ 61.800100] ? rcu_read_lock_sched_held+0x108/0x120 [ 61.805114] ? kmem_cache_alloc_trace+0x616/0x780 [ 61.809951] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 61.815482] ? _copy_from_user+0xdf/0x150 [ 61.819628] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 61.825159] ? copy_mount_options+0x285/0x380 [ 61.829648] ksys_mount+0x12d/0x140 [ 61.833267] __x64_sys_mount+0xbe/0x150 [ 61.837239] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 61.842254] do_syscall_64+0x1b1/0x800 [ 61.846135] ? finish_task_switch+0x1ca/0x810 [ 61.850626] ? syscall_return_slowpath+0x5c0/0x5c0 [ 61.855552] ? syscall_return_slowpath+0x30f/0x5c0 [ 61.860477] ? entry_SYSCALL_64_after_hwframe+0x59/0xbe [ 61.865840] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 61.870679] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 61.875861] RIP: 0033:0x447cd9 [ 61.879710] RSP: 002b:00007fbb431e0828 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 61.887424] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 0000000000447cd9 [ 61.894684] RDX: 00000000004b08f6 RSI: 0000000020000100 RDI: 00000000004c74a5 [ 61.901947] RBP: 000000000000c000 R08: 00007fbb431e0840 R09: 0000000000000000 [ 61.909208] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 61.916471] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 61.923734] [ 61.925357] Allocated by task 4523: [ 61.928983] save_stack+0x43/0xd0 [ 61.932445] kasan_kmalloc+0xc4/0xe0 [ 61.936171] kmem_cache_alloc_trace+0x152/0x780 [ 61.940834] fuse_fill_super+0xc92/0x1e20 [ 61.944976] mount_nodev+0x6b/0x110 [ 61.948594] fuse_mount+0x2c/0x40 [ 61.952040] mount_fs+0xae/0x328 [ 61.955406] vfs_kern_mount.part.34+0xd4/0x4d0 [ 61.959978] do_mount+0x564/0x3070 [ 61.963509] ksys_mount+0x12d/0x140 [ 61.967128] __x64_sys_mount+0xbe/0x150 [ 61.971097] do_syscall_64+0x1b1/0x800 [ 61.974981] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 61.980152] [ 61.981771] Freed by task 4312: [ 61.985053] save_stack+0x43/0xd0 [ 61.988498] __kasan_slab_free+0x11a/0x170 [ 61.992729] kasan_slab_free+0xe/0x10 [ 61.996527] kfree+0xd9/0x260 [ 61.999628] rcu_process_callbacks+0xa69/0x15f0 [ 62.004290] __do_softirq+0x2e0/0xaf5 [ 62.008078] [ 62.009699] The buggy address belongs to the object at ffff8801b7555200 [ 62.009699] which belongs to the cache kmalloc-1024 of size 1024 [ 62.022530] The buggy address is located 712 bytes inside of [ 62.022530] 1024-byte region [ffff8801b7555200, ffff8801b7555600) [ 62.034480] The buggy address belongs to the page: [ 62.039407] page:ffffea0006dd5500 count:1 mapcount:0 mapping:ffff8801b7554000 index:0x0 compound_mapcount: 0 [ 62.049372] flags: 0x2fffc0000008100(slab|head) [ 62.054046] raw: 02fffc0000008100 ffff8801b7554000 0000000000000000 0000000100000007 [ 62.061925] raw: ffffea0006dd9020 ffffea0006db0d20 ffff8801da800ac0 0000000000000000 [ 62.069794] page dumped because: kasan: bad access detected [ 62.075489] [ 62.077102] Memory state around the buggy address: [ 62.082021] ffff8801b7555380: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 62.089377] ffff8801b7555400: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 62.096729] >ffff8801b7555480: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 62.104076] ^ [ 62.109779] ffff8801b7555500: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 62.117134] ffff8801b7555580: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 62.124481] ================================================================== [ 62.131824] Disabling lock debugging due to kernel taint [ 62.137264] Kernel panic - not syncing: panic_on_warn set ... [ 62.137264] [ 62.144626] CPU: 1 PID: 4523 Comm: syz-executor152 Tainted: G B 4.17.0-rc3+ #32 [ 62.153364] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 62.162708] Call Trace: [ 62.165296] dump_stack+0x1b9/0x294 [ 62.168920] ? dump_stack_print_info.cold.2+0x52/0x52 [ 62.174102] ? lock_downgrade+0x8e0/0x8e0 [ 62.178246] ? vprintk_default+0x28/0x30 [ 62.182302] ? __lock_acquire+0x3790/0x5140 [ 62.186617] panic+0x22f/0x4de [ 62.189804] ? add_taint.cold.5+0x16/0x16 [ 62.193946] ? add_taint.cold.5+0x5/0x16 [ 62.198003] ? do_raw_spin_unlock+0x9e/0x2e0 [ 62.202412] ? __lock_acquire+0x3888/0x5140 [ 62.206727] kasan_end_report+0x47/0x4f [ 62.210693] kasan_report.cold.7+0x76/0x2fe [ 62.215010] __asan_report_load8_noabort+0x14/0x20 [ 62.219934] __lock_acquire+0x3888/0x5140 [ 62.224077] ? lock_downgrade+0x8e0/0x8e0 [ 62.228224] ? kasan_check_read+0x11/0x20 [ 62.232365] ? rcu_is_watching+0x85/0x140 [ 62.236509] ? debug_check_no_locks_freed+0x310/0x310 [ 62.241693] ? is_bpf_text_address+0xd7/0x170 [ 62.246180] ? kernel_text_address+0x79/0xf0 [ 62.250582] ? __unwind_start+0x166/0x330 [ 62.254726] ? __kernel_text_address+0xd/0x40 [ 62.259214] ? unwind_get_return_address+0x61/0xa0 [ 62.264140] ? __save_stack_trace+0x7e/0xd0 [ 62.268458] ? save_stack+0xa9/0xd0 [ 62.272078] ? save_stack+0x43/0xd0 [ 62.275698] ? __kasan_slab_free+0x11a/0x170 [ 62.280102] ? kasan_slab_free+0xe/0x10 [ 62.284070] ? kfree+0xd9/0x260 [ 62.287341] ? unregister_shrinker+0x216/0x3a0 [ 62.291915] ? deactivate_locked_super+0x70/0x100 [ 62.296748] ? mount_nodev+0xfa/0x110 [ 62.300555] ? fuse_mount+0x2c/0x40 [ 62.304177] ? mount_fs+0xae/0x328 [ 62.307712] ? vfs_kern_mount.part.34+0xd4/0x4d0 [ 62.312462] ? do_mount+0x564/0x3070 [ 62.316168] ? ksys_mount+0x12d/0x140 [ 62.319963] ? graph_lock+0x170/0x170 [ 62.323760] ? kasan_check_read+0x11/0x20 [ 62.327905] ? do_raw_spin_unlock+0x9e/0x2e0 [ 62.332307] ? do_raw_spin_trylock+0x1b0/0x1b0 [ 62.336882] ? print_usage_bug+0xc0/0xc0 [ 62.340937] ? kasan_check_write+0x14/0x20 [ 62.345164] ? do_raw_spin_lock+0xc1/0x200 [ 62.349393] lock_acquire+0x1dc/0x520 [ 62.353189] ? fuse_kill_sb_anon+0x50/0xb0 [ 62.357422] ? lock_release+0xa10/0xa10 [ 62.361390] ? check_same_owner+0x320/0x320 [ 62.365702] ? quarantine_put+0xeb/0x190 [ 62.369761] ? rcu_note_context_switch+0x710/0x710 [ 62.374685] ? __might_sleep+0x95/0x190 [ 62.378658] down_write+0x87/0x120 [ 62.382193] ? fuse_kill_sb_anon+0x50/0xb0 [ 62.386420] ? down_read+0x1b0/0x1b0 [ 62.390130] ? perf_trace_mm_vmscan_writepage+0x750/0x750 [ 62.395664] fuse_kill_sb_anon+0x50/0xb0 [ 62.399724] deactivate_locked_super+0x97/0x100 [ 62.404387] ? fuse_get_root_inode+0x190/0x190 [ 62.408967] mount_nodev+0xfa/0x110 [ 62.412587] fuse_mount+0x2c/0x40 [ 62.416040] mount_fs+0xae/0x328 [ 62.419404] vfs_kern_mount.part.34+0xd4/0x4d0 [ 62.423980] ? may_umount+0xb0/0xb0 [ 62.427605] ? _raw_read_unlock+0x22/0x30 [ 62.431746] ? __get_fs_type+0x97/0xc0 [ 62.435627] do_mount+0x564/0x3070 [ 62.439163] ? copy_mount_string+0x40/0x40 [ 62.443403] ? rcu_pm_notify+0xc0/0xc0 [ 62.447288] ? copy_mount_options+0x5f/0x380 [ 62.451689] ? rcu_read_lock_sched_held+0x108/0x120 [ 62.456788] ? kmem_cache_alloc_trace+0x616/0x780 [ 62.461629] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 62.467162] ? _copy_from_user+0xdf/0x150 [ 62.471340] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 62.476874] ? copy_mount_options+0x285/0x380 [ 62.481375] ksys_mount+0x12d/0x140 [ 62.484996] __x64_sys_mount+0xbe/0x150 [ 62.488970] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 62.493981] do_syscall_64+0x1b1/0x800 [ 62.497866] ? finish_task_switch+0x1ca/0x810 [ 62.502357] ? syscall_return_slowpath+0x5c0/0x5c0 [ 62.507284] ? syscall_return_slowpath+0x30f/0x5c0 [ 62.512212] ? entry_SYSCALL_64_after_hwframe+0x59/0xbe [ 62.517572] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 62.522412] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 62.527592] RIP: 0033:0x447cd9 [ 62.530772] RSP: 002b:00007fbb431e0828 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 62.538472] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 0000000000447cd9 [ 62.545752] RDX: 00000000004b08f6 RSI: 0000000020000100 RDI: 00000000004c74a5 [ 62.553016] RBP: 000000000000c000 R08: 00007fbb431e0840 R09: 0000000000000000 [ 62.560274] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 62.567536] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 62.575287] Dumping ftrace buffer: [ 62.578816] (ftrace buffer empty) [ 62.582510] Kernel Offset: disabled [ 62.586121] Rebooting in 86400 seconds..