syzkaller syzkaller login: [ 12.187366][ T23] audit: type=1400 audit(1635215452.630:71): avc: denied { transition } for pid=288 comm="sshd" path="/bin/sh" dev="sda1" ino=73 scontext=system_u:system_r:initrc_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 12.195663][ T23] audit: type=1400 audit(1635215452.630:72): avc: denied { write } for pid=288 comm="sh" path="pipe:[11539]" dev="pipefs" ino=11539 scontext=root:sysadm_r:sysadm_t tcontext=system_u:system_r:initrc_t tclass=fifo_file permissive=1 [ 12.825644][ T0] NOHZ tick-stop error: Non-RCU local softirq work is pending, handler #80!!! [ 13.206358][ T0] NOHZ tick-stop error: Non-RCU local softirq work is pending, handler #80!!! [ 13.415737][ T0] NOHZ tick-stop error: Non-RCU local softirq work is pending, handler #80!!! [ 18.015712][ T0] NOHZ tick-stop error: Non-RCU local softirq work is pending, handler #80!!! [ 43.335718][ T0] NOHZ tick-stop error: Non-RCU local softirq work is pending, handler #10!!! Warning: Permanently added '10.128.1.27' (ECDSA) to the list of known hosts. executing program [ 172.719200][ T23] audit: type=1400 audit(1635215613.160:73): avc: denied { execmem } for pid=365 comm="syz-executor003" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 172.738774][ T23] audit: type=1400 audit(1635215613.170:74): avc: denied { read write } for pid=365 comm="syz-executor003" name="loop0" dev="devtmpfs" ino=115 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1 [ 172.763110][ T23] audit: type=1400 audit(1635215613.170:75): avc: denied { open } for pid=365 comm="syz-executor003" path="/dev/loop0" dev="devtmpfs" ino=115 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1 [ 172.777081][ T367] FAULT_INJECTION: forcing a failure. [ 172.777081][ T367] name failslab, interval 1, probability 0, space 0, times 1 [ 172.787458][ T23] audit: type=1400 audit(1635215613.170:76): avc: denied { ioctl } for pid=365 comm="syz-executor003" path="/dev/loop0" dev="devtmpfs" ino=115 ioctlcmd=0x4c01 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1 [ 172.799819][ T367] CPU: 0 PID: 367 Comm: syz-executor003 Not tainted 5.10.75-syzkaller-01082-g234d53d2bb60 #0 [ 172.825650][ T23] audit: type=1400 audit(1635215613.190:77): avc: denied { mounton } for pid=367 comm="syz-executor003" path="/root/syzkaller.jIcSqP/0/file0" dev="sda1" ino=1139 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:user_home_t tclass=dir permissive=1 [ 172.835494][ T367] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 172.835498][ T367] Call Trace: [ 172.835524][ T367] dump_stack_lvl+0x1e2/0x24b [ 172.835540][ T367] ? devkmsg_release+0x127/0x127 [ 172.860238][ T23] audit: type=1400 audit(1635215613.210:78): avc: denied { mount } for pid=367 comm="syz-executor003" name="/" dev="loop0" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:dosfs_t tclass=filesystem permissive=1 [ 172.869926][ T367] ? show_regs_print_info+0x18/0x18 [ 172.869936][ T367] dump_stack+0x15/0x1d [ 172.869952][ T367] should_fail+0x3c0/0x510 [ 172.873422][ T23] audit: type=1400 audit(1635215613.220:79): avc: denied { mounton } for pid=367 comm="syz-executor003" path="/root/syzkaller.jIcSqP/0/file0" dev="loop0" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:dosfs_t tclass=dir permissive=1 [ 172.877851][ T367] ? kvmalloc_node+0x82/0x110 [ 172.877861][ T367] __should_failslab+0x9f/0xe0 [ 172.877871][ T367] should_failslab+0x9/0x20 [ 172.877886][ T367] __kmalloc+0x68/0x3d0 [ 172.960702][ T367] ? __kasan_kmalloc+0x9/0x10 [ 172.965349][ T367] ? kmem_cache_alloc_trace+0x210/0x3a0 [ 172.970880][ T367] kvmalloc_node+0x82/0x110 [ 172.975354][ T367] __list_lru_init+0x1da/0x590 [ 172.980088][ T367] alloc_super+0x62d/0x770 [ 172.984475][ T367] sget+0x1fd/0x4e0 [ 172.988254][ T367] ? free_anon_bdev+0x30/0x30 [ 172.992901][ T367] incfs_mount_fs+0xca/0x840 [ 172.997461][ T367] ? incfs_unlink+0x80/0x80 [ 173.001944][ T367] ? selinux_capable+0x39/0x50 [ 173.006675][ T367] legacy_get_tree+0xf0/0x190 [ 173.011328][ T367] ? incfs_unlink+0x80/0x80 [ 173.015802][ T367] vfs_get_tree+0x89/0x270 [ 173.020189][ T367] path_mount+0x1975/0x2ab0 [ 173.024671][ T367] ? mark_mounts_for_expiry+0x4b0/0x4b0 [ 173.030184][ T367] ? getname_flags+0x207/0x650 [ 173.034919][ T367] ? user_path_at_empty+0x40/0x50 [ 173.039924][ T367] __se_sys_mount+0x2f7/0x3b0 [ 173.044569][ T367] ? __x64_sys_mount+0xd0/0xd0 [ 173.049312][ T367] ? debug_smp_processor_id+0x1c/0x20 [ 173.054651][ T367] __x64_sys_mount+0xbf/0xd0 [ 173.059208][ T367] do_syscall_64+0x31/0x70 [ 173.063592][ T367] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 173.069455][ T367] RIP: 0033:0x7fe663391fd9 [ 173.073843][ T367] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 173.093425][ T367] RSP: 002b:00007ffd0df4bbf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 173.101821][ T367] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fe663391fd9 [ 173.109775][ T367] RDX: 0000000020000340 RSI: 0000000020000000 RDI: 00000000200002c0 [ 173.117728][ T367] RBP: 00007ffd0df4bc20 R08: 0000000000000000 R09: 00007ffd0df4bc30 [ 173.125681][ T367] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000003 [ 173.133624][ T367] R13: 00007ffd0df4bc60 R14: 00007ffd0df4bc40 R15: 0000000000000000 [ 173.143274][ T23] audit: type=1400 audit(1635215613.580:80): avc: denied { unmount } for pid=365 comm="syz-executor003" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:dosfs_t tclass=filesystem permissive=1 executing program [ 173.220455][ T369] FAULT_INJECTION: forcing a failure. [ 173.220455][ T369] name failslab, interval 1, probability 0, space 0, times 0 [ 173.233212][ T369] CPU: 1 PID: 369 Comm: syz-executor003 Not tainted 5.10.75-syzkaller-01082-g234d53d2bb60 #0 [ 173.243354][ T369] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 173.253387][ T369] Call Trace: [ 173.256654][ T369] dump_stack_lvl+0x1e2/0x24b [ 173.261307][ T369] ? devkmsg_release+0x127/0x127 [ 173.266215][ T369] ? show_regs_print_info+0x18/0x18 [ 173.271380][ T369] dump_stack+0x15/0x1d [ 173.275504][ T369] should_fail+0x3c0/0x510 [ 173.279893][ T369] ? avc_insert+0xb6/0x950 [ 173.284277][ T369] __should_failslab+0x9f/0xe0 [ 173.289016][ T369] should_failslab+0x9/0x20 [ 173.293487][ T369] kmem_cache_alloc+0x43/0x380 [ 173.298223][ T369] avc_insert+0xb6/0x950 [ 173.302446][ T369] avc_compute_av+0xd0/0xe0 [ 173.307110][ T369] avc_has_perm_noaudit+0x2aa/0x4d0 [ 173.312277][ T369] ? avc_denied+0x1b0/0x1b0 [ 173.316749][ T369] ? __d_rehash+0x19e/0x1e0 [ 173.321222][ T369] avc_has_perm+0xd2/0x270 [ 173.325611][ T369] ? avc_has_perm_noaudit+0x4d0/0x4d0 [ 173.330952][ T369] ? security_transition_sid+0x7d/0x90 [ 173.336388][ T369] may_create+0x635/0x8b0 [ 173.340685][ T369] ? show_sid+0x250/0x250 [ 173.344982][ T369] ? __kasan_check_write+0x14/0x20 [ 173.350062][ T369] ? from_kgid+0x206/0x350 [ 173.354460][ T369] selinux_inode_mkdir+0x22/0x30 [ 173.359368][ T369] security_inode_mkdir+0xa8/0x130 [ 173.364445][ T369] vfs_mkdir+0x361/0x610 [ 173.368659][ T369] open_or_create_special_dir+0xbf/0x150 [ 173.374260][ T369] incfs_mount_fs+0x3e9/0x840 [ 173.378904][ T369] ? incfs_unlink+0x80/0x80 [ 173.383465][ T369] ? selinux_capable+0x39/0x50 [ 173.388199][ T369] legacy_get_tree+0xf0/0x190 [ 173.392853][ T369] ? incfs_unlink+0x80/0x80 [ 173.397322][ T369] vfs_get_tree+0x89/0x270 [ 173.401708][ T369] path_mount+0x1975/0x2ab0 [ 173.406181][ T369] ? mark_mounts_for_expiry+0x4b0/0x4b0 [ 173.411707][ T369] ? getname_flags+0x207/0x650 [ 173.416438][ T369] ? user_path_at_empty+0x40/0x50 [ 173.421444][ T369] __se_sys_mount+0x2f7/0x3b0 [ 173.426103][ T369] ? __x64_sys_mount+0xd0/0xd0 [ 173.430857][ T369] ? debug_smp_processor_id+0x1c/0x20 [ 173.436224][ T369] __x64_sys_mount+0xbf/0xd0 [ 173.440780][ T369] do_syscall_64+0x31/0x70 [ 173.445165][ T369] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 173.451024][ T369] RIP: 0033:0x7fe663391fd9 [ 173.455408][ T369] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 173.474980][ T369] RSP: 002b:00007ffd0df4bbf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 173.483362][ T369] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fe663391fd9 [ 173.491315][ T369] RDX: 0000000020000340 RSI: 0000000020000000 RDI: 00000000200002c0 [ 173.499282][ T369] RBP: 00007ffd0df4bc20 R08: 0000000000000000 R09: 00007ffd0df4bc30 [ 173.507265][ T369] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000003 [ 173.515303][ T369] R13: 00007ffd0df4bc60 R14: 00007ffd0df4bc40 R15: 0000000000000001 [ 173.524654][ T369] incfs: ino conflict with backing FS 1 [ 173.530440][ T23] audit: type=1400 audit(1635215613.970:81): avc: denied { mount } for pid=369 comm="syz-executor003" name="/" dev="incremental-fs" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unlabeled_t tclass=filesystem permissive=1 [ 173.555135][ T23] audit: type=1400 audit(1635215614.000:82): avc: denied { unmount } for pid=365 comm="syz-executor003" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unlabeled_t tclass=filesystem permissive=1 executing program [ 173.628353][ T371] FAULT_INJECTION: forcing a failure. [ 173.628353][ T371] name fail_page_alloc, interval 1, probability 0, space 0, times 1 [ 173.641736][ T371] CPU: 0 PID: 371 Comm: syz-executor003 Not tainted 5.10.75-syzkaller-01082-g234d53d2bb60 #0 [ 173.651895][ T371] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 173.661958][ T371] Call Trace: [ 173.665231][ T371] dump_stack_lvl+0x1e2/0x24b [ 173.669876][ T371] ? show_regs_print_info+0x18/0x18 [ 173.675048][ T371] dump_stack+0x15/0x1d [ 173.679192][ T371] should_fail+0x3c0/0x510 [ 173.683578][ T371] should_fail_alloc_page+0x4f/0x60 [ 173.688745][ T371] __alloc_pages_nodemask+0x1b9/0x820 [ 173.694090][ T371] ? __x64_sys_mount+0xbf/0xd0 [ 173.698845][ T371] ? entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 173.704917][ T371] ? gfp_pfmemalloc_allowed+0x120/0x120 [ 173.710437][ T371] allocate_slab+0x6b/0x350 [ 173.714910][ T371] ___slab_alloc+0x143/0x2f0 [ 173.719473][ T371] ? alloc_buffer_head+0x26/0x110 [ 173.724481][ T371] kmem_cache_alloc+0x26f/0x380 [ 173.729305][ T371] ? alloc_buffer_head+0x26/0x110 [ 173.734302][ T371] alloc_buffer_head+0x26/0x110 [ 173.739121][ T371] alloc_page_buffers+0x138/0x4b0 [ 173.744117][ T371] grow_dev_page+0x276/0x4c0 [ 173.748678][ T371] __getblk_gfp+0x18d/0x2a0 [ 173.753149][ T371] fat_alloc_new_dir+0x27a/0xd70 [ 173.758055][ T371] ? __fat_remove_entries+0x4f0/0x4f0 [ 173.763399][ T371] ? __kasan_check_write+0x14/0x20 [ 173.768479][ T371] ? __d_lookup_rcu+0xc0/0x660 [ 173.773217][ T371] ? may_create+0x635/0x8b0 [ 173.777690][ T371] vfat_mkdir+0x176/0x420 [ 173.782006][ T371] ? vfat_unlink+0x3a0/0x3a0 [ 173.786570][ T371] ? selinux_inode_mkdir+0x22/0x30 [ 173.791653][ T371] ? security_inode_mkdir+0xf1/0x130 [ 173.796910][ T371] vfs_mkdir+0x435/0x610 [ 173.801128][ T371] open_or_create_special_dir+0xbf/0x150 [ 173.806735][ T371] incfs_mount_fs+0x3e9/0x840 [ 173.811387][ T371] ? incfs_unlink+0x80/0x80 [ 173.815858][ T371] ? selinux_capable+0x39/0x50 [ 173.820591][ T371] legacy_get_tree+0xf0/0x190 [ 173.825238][ T371] ? incfs_unlink+0x80/0x80 [ 173.829709][ T371] vfs_get_tree+0x89/0x270 [ 173.834094][ T371] path_mount+0x1975/0x2ab0 [ 173.838567][ T371] ? mark_mounts_for_expiry+0x4b0/0x4b0 [ 173.844083][ T371] ? getname_flags+0x207/0x650 [ 173.848831][ T371] ? user_path_at_empty+0x40/0x50 [ 173.853825][ T371] __se_sys_mount+0x2f7/0x3b0 [ 173.858478][ T371] ? __x64_sys_mount+0xd0/0xd0 [ 173.863219][ T371] ? debug_smp_processor_id+0x1c/0x20 [ 173.868561][ T371] __x64_sys_mount+0xbf/0xd0 [ 173.873121][ T371] do_syscall_64+0x31/0x70 [ 173.877505][ T371] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 173.883366][ T371] RIP: 0033:0x7fe663391fd9 [ 173.887752][ T371] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 173.907325][ T371] RSP: 002b:00007ffd0df4bbf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 173.915711][ T371] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fe663391fd9 [ 173.923667][ T371] RDX: 0000000020000340 RSI: 0000000020000000 RDI: 00000000200002c0 [ 173.931612][ T371] RBP: 00007ffd0df4bc20 R08: 0000000000000000 R09: 00007ffd0df4bc30 [ 173.939555][ T371] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000003 [ 173.947526][ T371] R13: 00007ffd0df4bc60 R14: 00007ffd0df4bc40 R15: 0000000000000002 [ 173.956951][ T371] incfs: ino conflict with backing FS 1 executing program [ 174.060281][ T373] FAULT_INJECTION: forcing a failure. [ 174.060281][ T373] name failslab, interval 1, probability 0, space 0, times 0 [ 174.072932][ T373] CPU: 0 PID: 373 Comm: syz-executor003 Not tainted 5.10.75-syzkaller-01082-g234d53d2bb60 #0 [ 174.083065][ T373] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 174.093095][ T373] Call Trace: [ 174.096360][ T373] dump_stack_lvl+0x1e2/0x24b [ 174.101007][ T373] ? show_regs_print_info+0x18/0x18 [ 174.106174][ T373] dump_stack+0x15/0x1d [ 174.110299][ T373] should_fail+0x3c0/0x510 [ 174.114685][ T373] ? vfat_add_entry+0x357/0x3850 [ 174.119589][ T373] __should_failslab+0x9f/0xe0 [ 174.124324][ T373] should_failslab+0x9/0x20 [ 174.128831][ T373] kmem_cache_alloc+0x43/0x380 [ 174.133569][ T373] vfat_add_entry+0x357/0x3850 [ 174.138302][ T373] ? __mod_memcg_state+0xb4/0x230 [ 174.143398][ T373] ? __kasan_check_write+0x14/0x20 [ 174.148476][ T373] ? percpu_counter_add_batch+0x14b/0x170 [ 174.154180][ T373] ? vfat_rename+0xff0/0xff0 [ 174.158758][ T373] ? __kasan_check_write+0x14/0x20 [ 174.163870][ T373] ? __brelse+0x5a/0xa0 [ 174.168059][ T373] ? fat_zeroed_cluster+0x82a/0x8a0 [ 174.173240][ T373] ? mark_buffer_dirty+0x1e3/0x310 [ 174.178331][ T373] ? _raw_spin_unlock+0x4d/0x70 [ 174.183152][ T373] ? fat_alloc_new_dir+0x857/0xd70 [ 174.188236][ T373] ? __fat_remove_entries+0x4f0/0x4f0 [ 174.193576][ T373] ? 0xffffffff81000000 [ 174.197734][ T373] ? __d_lookup_rcu+0xc0/0x660 [ 174.202488][ T373] ? may_create+0x635/0x8b0 [ 174.206964][ T373] vfat_mkdir+0x1a8/0x420 [ 174.211277][ T373] ? vfat_unlink+0x3a0/0x3a0 [ 174.215855][ T373] ? selinux_inode_mkdir+0x22/0x30 [ 174.220954][ T373] ? security_inode_mkdir+0xf1/0x130 [ 174.226218][ T373] vfs_mkdir+0x435/0x610 [ 174.230524][ T373] open_or_create_special_dir+0xbf/0x150 [ 174.236135][ T373] incfs_mount_fs+0x3e9/0x840 [ 174.240783][ T373] ? incfs_unlink+0x80/0x80 [ 174.245256][ T373] ? selinux_capable+0x39/0x50 [ 174.249989][ T373] legacy_get_tree+0xf0/0x190 [ 174.254664][ T373] ? incfs_unlink+0x80/0x80 [ 174.259232][ T373] vfs_get_tree+0x89/0x270 [ 174.263617][ T373] path_mount+0x1975/0x2ab0 [ 174.268090][ T373] ? mark_mounts_for_expiry+0x4b0/0x4b0 [ 174.273610][ T373] ? getname_flags+0x207/0x650 [ 174.278353][ T373] ? user_path_at_empty+0x40/0x50 [ 174.283346][ T373] __se_sys_mount+0x2f7/0x3b0 [ 174.287991][ T373] ? __x64_sys_mount+0xd0/0xd0 [ 174.292728][ T373] ? debug_smp_processor_id+0x1c/0x20 [ 174.298065][ T373] __x64_sys_mount+0xbf/0xd0 [ 174.302626][ T373] do_syscall_64+0x31/0x70 [ 174.307011][ T373] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 174.312869][ T373] RIP: 0033:0x7fe663391fd9 [ 174.317255][ T373] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 174.336930][ T373] RSP: 002b:00007ffd0df4bbf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 174.345311][ T373] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fe663391fd9 [ 174.353263][ T373] RDX: 0000000020000340 RSI: 0000000020000000 RDI: 00000000200002c0 [ 174.361205][ T373] RBP: 00007ffd0df4bc20 R08: 0000000000000000 R09: 00007ffd0df4bc30 [ 174.369146][ T373] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000003 [ 174.377088][ T373] R13: 00007ffd0df4bc60 R14: 00007ffd0df4bc40 R15: 0000000000000003 [ 174.385162][ T373] incfs: Can't find or create .index dir in ./file0 [ 174.393249][ T365] BUG: Dentry ffff888119d7fcc0{i=0,n=.index} still in use (1) [unmount of vfat loop0] [ 174.402978][ T365] ------------[ cut here ]------------ [ 174.408529][ T365] WARNING: CPU: 0 PID: 365 at fs/dcache.c:1616 umount_check+0x18d/0x1d0 [ 174.417066][ T365] Modules linked in: [ 174.420953][ T365] CPU: 0 PID: 365 Comm: syz-executor003 Not tainted 5.10.75-syzkaller-01082-g234d53d2bb60 #0 [ 174.431118][ T365] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 174.441204][ T365] RIP: 0010:umount_check+0x18d/0x1d0 [ 174.446496][ T365] Code: 8b 0b 49 81 c6 f8 03 00 00 48 c7 c7 40 43 2e 85 4c 89 e6 48 8b 55 d0 4c 89 e1 45 89 f8 31 c0 41 56 e8 ae d9 9e ff 48 83 c4 08 <0f> 0b e9 f1 fe ff ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c c9 fe ff [ 174.466142][ T365] RSP: 0018:ffffc90000bf7c78 EFLAGS: 00010286 [ 174.472198][ T365] RAX: 0000000000000054 RBX: ffffffff866b3380 RCX: 40c1636306cab800 [ 174.480195][ T365] RDX: 0000000000000000 RSI: 0000000080000002 RDI: 0000000000000000 [ 174.488171][ T365] RBP: ffffc90000bf7ca8 R08: ffffffff81545368 R09: fffff5200017eeb9 [ 174.496151][ T365] R10: fffff5200017eeb9 R11: 0000000000000000 R12: ffff888119d7fcc0 [ 174.504192][ T365] R13: dffffc0000000000 R14: ffff8881061e33f8 R15: 0000000000000001 [ 174.512171][ T365] FS: 00005555574af300(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 174.521103][ T365] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 174.527764][ T365] CR2: 00005555574b8628 CR3: 000000011c8fe000 CR4: 00000000003506b0 [ 174.535896][ T365] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 174.543975][ T365] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 174.551959][ T365] Call Trace: [ 174.555235][ T365] d_walk+0x309/0x540 [ 174.559229][ T365] ? __d_free+0x30/0x30 [ 174.563387][ T365] shrink_dcache_for_umount+0x8e/0x1b0 [ 174.568850][ T365] generic_shutdown_super+0x66/0x2c0 [ 174.574116][ T365] kill_block_super+0x80/0xe0 [ 174.578808][ T365] deactivate_locked_super+0xb0/0x100 [ 174.584174][ T365] deactivate_super+0xa5/0xd0 [ 174.588884][ T365] cleanup_mnt+0x45f/0x510 [ 174.593294][ T365] __cleanup_mnt+0x19/0x20 [ 174.597733][ T365] task_work_run+0x147/0x1b0 [ 174.602314][ T365] exit_to_user_mode_prepare+0xc3/0xe0 [ 174.607780][ T365] syscall_exit_to_user_mode+0x24/0x40 [ 174.613343][ T365] do_syscall_64+0x3d/0x70 [ 174.617847][ T365] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 174.623798][ T365] RIP: 0033:0x7fe663393377 [ 174.628220][ T365] Code: 07 00 48 83 c4 08 5b 5d c3 66 2e 0f 1f 84 00 00 00 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 a6 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 174.647867][ T365] RSP: 002b:00007ffd0df4ab08 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6 [ 174.656279][ T365] RAX: 0000000000000000 RBX: 000000000002a7df RCX: 00007fe663393377 [ 174.664233][ T365] RDX: 00007ffd0df4abc9 RSI: 0000000000000002 RDI: 00007ffd0df4abc0 [ 174.672211][ T365] RBP: 00007ffd0df4abc0 R08: 00000000ffffffff R09: 00007ffd0df4a9a0 [ 174.680199][ T365] R10: 00005555574b0633 R11: 0000000000000202 R12: 00007ffd0df4bc40 [ 174.688171][ T365] R13: 00005555574b05f0 R14: 00007ffd0df4ab30 R15: 0000000000000004 [ 174.696232][ T365] ---[ end trace e3e057aa0f2d9c35 ]--- [ 174.702040][ T365] VFS: Busy inodes after unmount of loop0. Self-destruct in 5 seconds. Have a nice day... executing program [ 174.764459][ T375] FAULT_INJECTION: forcing a failure. [ 174.764459][ T375] name failslab, interval 1, probability 0, space 0, times 0 [ 174.777160][ T375] CPU: 1 PID: 375 Comm: syz-executor003 Tainted: G W 5.10.75-syzkaller-01082-g234d53d2bb60 #0 [ 174.788795][ T375] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 174.798882][ T375] Call Trace: [ 174.802148][ T375] dump_stack_lvl+0x1e2/0x24b [ 174.806801][ T375] ? show_regs_print_info+0x18/0x18 [ 174.811967][ T375] dump_stack+0x15/0x1d [ 174.816111][ T375] should_fail+0x3c0/0x510 [ 174.820541][ T375] ? vfat_add_entry+0x206/0x3850 [ 174.825448][ T375] __should_failslab+0x9f/0xe0 [ 174.830180][ T375] should_failslab+0x9/0x20 [ 174.834651][ T375] kmem_cache_alloc_trace+0x42/0x3a0 [ 174.839910][ T375] ? __kasan_check_read+0x11/0x20 [ 174.844915][ T375] ? __page_pinner_migration_failed+0xdd/0x250 [ 174.851039][ T375] vfat_add_entry+0x206/0x3850 [ 174.855776][ T375] ? __mod_memcg_state+0xb4/0x230 [ 174.860777][ T375] ? __kasan_check_write+0x14/0x20 [ 174.865860][ T375] ? percpu_counter_add_batch+0x14b/0x170 [ 174.871547][ T375] ? __rcu_read_lock+0x50/0x50 [ 174.876280][ T375] ? __add_wb_stat+0x5f/0x90 [ 174.880848][ T375] ? vfat_rename+0xff0/0xff0 [ 174.885407][ T375] ? __kasan_check_write+0x14/0x20 [ 174.890505][ T375] ? __brelse+0x5a/0xa0 [ 174.894631][ T375] ? fat_zeroed_cluster+0x82a/0x8a0 [ 174.899800][ T375] ? mark_buffer_dirty+0x1e3/0x310 [ 174.904877][ T375] ? _raw_spin_unlock+0x4d/0x70 [ 174.909695][ T375] ? fat_alloc_new_dir+0x857/0xd70 [ 174.914777][ T375] ? __fat_remove_entries+0x4f0/0x4f0 [ 174.920130][ T375] ? __kasan_check_write+0x14/0x20 [ 174.925214][ T375] ? __d_lookup_done+0x101/0x2a0 [ 174.930122][ T375] ? may_create+0x635/0x8b0 [ 174.934597][ T375] vfat_mkdir+0x1a8/0x420 [ 174.938896][ T375] ? vfat_unlink+0x3a0/0x3a0 [ 174.943456][ T375] ? selinux_inode_mkdir+0x22/0x30 [ 174.948535][ T375] ? security_inode_mkdir+0xf1/0x130 [ 174.953789][ T375] vfs_mkdir+0x435/0x610 [ 174.958006][ T375] open_or_create_special_dir+0xbf/0x150 [ 174.963606][ T375] incfs_mount_fs+0x3e9/0x840 [ 174.968698][ T375] ? incfs_unlink+0x80/0x80 [ 174.973173][ T375] ? selinux_capable+0x39/0x50 [ 174.977916][ T375] legacy_get_tree+0xf0/0x190 [ 174.982563][ T375] ? incfs_unlink+0x80/0x80 [ 174.987036][ T375] vfs_get_tree+0x89/0x270 [ 174.991426][ T375] path_mount+0x1975/0x2ab0 [ 174.995902][ T375] ? mark_mounts_for_expiry+0x4b0/0x4b0 [ 175.001417][ T375] ? getname_flags+0x207/0x650 [ 175.006148][ T375] ? user_path_at_empty+0x40/0x50 [ 175.011151][ T375] __se_sys_mount+0x2f7/0x3b0 [ 175.015797][ T375] ? __x64_sys_mount+0xd0/0xd0 [ 175.020532][ T375] ? debug_smp_processor_id+0x1c/0x20 [ 175.026048][ T375] __x64_sys_mount+0xbf/0xd0 [ 175.030610][ T375] do_syscall_64+0x31/0x70 [ 175.035017][ T375] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 175.040879][ T375] RIP: 0033:0x7fe663391fd9 [ 175.045350][ T375] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 175.064935][ T375] RSP: 002b:00007ffd0df4bbf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 175.073368][ T375] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fe663391fd9 [ 175.081330][ T375] RDX: 0000000020000340 RSI: 0000000020000000 RDI: 00000000200002c0 [ 175.089317][ T375] RBP: 00007ffd0df4bc20 R08: 0000000000000000 R09: 00007ffd0df4bc30 [ 175.097260][ T375] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000003 [ 175.105204][ T375] R13: 00007ffd0df4bc60 R14: 00007ffd0df4bc40 R15: 0000000000000004 [ 175.113342][ T375] incfs: Can't find or create .index dir in ./file0 [ 175.121378][ T365] BUG: Dentry ffff888119de9bb0{i=0,n=.index} still in use (1) [unmount of vfat loop0] [ 175.131037][ T365] ------------[ cut here ]------------ [ 175.136512][ T365] WARNING: CPU: 0 PID: 365 at fs/dcache.c:1616 umount_check+0x18d/0x1d0 [ 175.144825][ T365] Modules linked in: [ 175.148748][ T365] CPU: 0 PID: 365 Comm: syz-executor003 Tainted: G W 5.10.75-syzkaller-01082-g234d53d2bb60 #0 [ 175.160300][ T365] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 175.170388][ T365] RIP: 0010:umount_check+0x18d/0x1d0 [ 175.175673][ T365] Code: 8b 0b 49 81 c6 f8 03 00 00 48 c7 c7 40 43 2e 85 4c 89 e6 48 8b 55 d0 4c 89 e1 45 89 f8 31 c0 41 56 e8 ae d9 9e ff 48 83 c4 08 <0f> 0b e9 f1 fe ff ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c c9 fe ff [ 175.195327][ T365] RSP: 0018:ffffc90000bf7c78 EFLAGS: 00010286 [ 175.201441][ T365] RAX: 0000000000000054 RBX: ffffffff866b3380 RCX: 40c1636306cab800 [ 175.209448][ T365] RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000000 [ 175.217423][ T365] RBP: ffffc90000bf7ca8 R08: ffffffff81545368 R09: ffffed103ee095d8 [ 175.225377][ T365] R10: ffffed103ee095d8 R11: 0000000000000000 R12: ffff888119de9bb0 [ 175.233370][ T365] R13: dffffc0000000000 R14: ffff8881061e03f8 R15: 0000000000000001 [ 175.241345][ T365] FS: 00005555574af300(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 175.250276][ T365] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 175.256883][ T365] CR2: 00005555574b8628 CR3: 000000011c8fe000 CR4: 00000000003506b0 [ 175.264834][ T365] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 175.272821][ T365] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 175.280785][ T365] Call Trace: [ 175.284053][ T365] d_walk+0x309/0x540 [ 175.288052][ T365] ? __d_free+0x30/0x30 [ 175.292194][ T365] shrink_dcache_for_umount+0x8e/0x1b0 [ 175.297672][ T365] generic_shutdown_super+0x66/0x2c0 [ 175.302950][ T365] kill_block_super+0x80/0xe0 [ 175.307629][ T365] deactivate_locked_super+0xb0/0x100 [ 175.312996][ T365] deactivate_super+0xa5/0xd0 [ 175.317693][ T365] cleanup_mnt+0x45f/0x510 [ 175.322097][ T365] __cleanup_mnt+0x19/0x20 [ 175.326530][ T365] task_work_run+0x147/0x1b0 [ 175.331126][ T365] exit_to_user_mode_prepare+0xc3/0xe0 [ 175.336590][ T365] syscall_exit_to_user_mode+0x24/0x40 [ 175.342039][ T365] do_syscall_64+0x3d/0x70 [ 175.346455][ T365] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 175.352334][ T365] RIP: 0033:0x7fe663393377 [ 175.356759][ T365] Code: 07 00 48 83 c4 08 5b 5d c3 66 2e 0f 1f 84 00 00 00 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 a6 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 175.376384][ T365] RSP: 002b:00007ffd0df4ab08 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6 [ 175.384774][ T365] RAX: 0000000000000000 RBX: 000000000002aaa0 RCX: 00007fe663393377 [ 175.392766][ T365] RDX: 00007ffd0df4abc9 RSI: 0000000000000002 RDI: 00007ffd0df4abc0 [ 175.400769][ T365] RBP: 00007ffd0df4abc0 R08: 00000000ffffffff R09: 00007ffd0df4a9a0 [ 175.408746][ T365] R10: 00005555574b0633 R11: 0000000000000202 R12: 00007ffd0df4bc40 [ 175.416720][ T365] R13: 00005555574b05f0 R14: 00007ffd0df4ab30 R15: 0000000000000005 [ 175.424854][ T365] ---[ end trace e3e057aa0f2d9c36 ]--- [ 175.430727][ T365] VFS: Busy inodes after unmount of loop0. Self-destruct in 5 seconds. Have a nice day... executing program [ 175.499796][ T377] FAULT_INJECTION: forcing a failure. [ 175.499796][ T377] name fail_page_alloc, interval 1, probability 0, space 0, times 0 [ 175.513050][ T377] CPU: 1 PID: 377 Comm: syz-executor003 Tainted: G W 5.10.75-syzkaller-01082-g234d53d2bb60 #0 [ 175.524585][ T377] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 175.534712][ T377] Call Trace: [ 175.537986][ T377] dump_stack_lvl+0x1e2/0x24b [ 175.542637][ T377] ? show_regs_print_info+0x18/0x18 [ 175.547926][ T377] dump_stack+0x15/0x1d [ 175.552113][ T377] should_fail+0x3c0/0x510 [ 175.556505][ T377] should_fail_alloc_page+0x4f/0x60 [ 175.561713][ T377] __alloc_pages_nodemask+0x1b9/0x820 [ 175.567061][ T377] ? __x64_sys_mount+0xbf/0xd0 [ 175.571801][ T377] ? entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 175.577842][ T377] ? gfp_pfmemalloc_allowed+0x120/0x120 [ 175.583372][ T377] allocate_slab+0x6b/0x350 [ 175.587849][ T377] ___slab_alloc+0x143/0x2f0 [ 175.592410][ T377] ? alloc_buffer_head+0x26/0x110 [ 175.597406][ T377] kmem_cache_alloc+0x26f/0x380 [ 175.602230][ T377] ? alloc_buffer_head+0x26/0x110 [ 175.607239][ T377] alloc_buffer_head+0x26/0x110 [ 175.612062][ T377] alloc_page_buffers+0x138/0x4b0 [ 175.617060][ T377] grow_dev_page+0x276/0x4c0 [ 175.621638][ T377] __getblk_gfp+0x18d/0x2a0 [ 175.626117][ T377] fat_alloc_new_dir+0x27a/0xd70 [ 175.631046][ T377] ? __fat_remove_entries+0x4f0/0x4f0 [ 175.636397][ T377] ? __kasan_check_write+0x14/0x20 [ 175.641487][ T377] ? __d_lookup_rcu+0xc0/0x660 [ 175.646226][ T377] ? may_create+0x635/0x8b0 [ 175.650705][ T377] vfat_mkdir+0x176/0x420 [ 175.655012][ T377] ? vfat_unlink+0x3a0/0x3a0 [ 175.659582][ T377] ? selinux_inode_mkdir+0x22/0x30 [ 175.664680][ T377] ? security_inode_mkdir+0xf1/0x130 [ 175.669953][ T377] vfs_mkdir+0x435/0x610 [ 175.674174][ T377] open_or_create_special_dir+0xbf/0x150 [ 175.679782][ T377] incfs_mount_fs+0x3e9/0x840 [ 175.684447][ T377] ? incfs_unlink+0x80/0x80 [ 175.688927][ T377] ? selinux_capable+0x39/0x50 [ 175.693668][ T377] legacy_get_tree+0xf0/0x190 [ 175.698317][ T377] ? incfs_unlink+0x80/0x80 [ 175.702796][ T377] vfs_get_tree+0x89/0x270 [ 175.707188][ T377] path_mount+0x1975/0x2ab0 [ 175.711670][ T377] ? mark_mounts_for_expiry+0x4b0/0x4b0 [ 175.717193][ T377] ? getname_flags+0x207/0x650 [ 175.721931][ T377] ? user_path_at_empty+0x40/0x50 [ 175.726929][ T377] __se_sys_mount+0x2f7/0x3b0 [ 175.731584][ T377] ? __x64_sys_mount+0xd0/0xd0 [ 175.736326][ T377] __x64_sys_mount+0xbf/0xd0 [ 175.740897][ T377] do_syscall_64+0x31/0x70 [ 175.745291][ T377] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 175.751158][ T377] RIP: 0033:0x7fe663391fd9 [ 175.755552][ T377] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 175.775218][ T377] RSP: 002b:00007ffd0df4bbf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 175.783625][ T377] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fe663391fd9 [ 175.791576][ T377] RDX: 0000000020000340 RSI: 0000000020000000 RDI: 00000000200002c0 [ 175.799526][ T377] RBP: 00007ffd0df4bc20 R08: 0000000000000000 R09: 00007ffd0df4bc30 [ 175.807489][ T377] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000003 [ 175.815438][ T377] R13: 00007ffd0df4bc60 R14: 00007ffd0df4bc40 R15: 0000000000000005 [ 175.823840][ T377] incfs: ino conflict with backing FS 1 executing program [ 175.939578][ T379] FAULT_INJECTION: forcing a failure. [ 175.939578][ T379] name failslab, interval 1, probability 0, space 0, times 0 [ 175.952248][ T379] CPU: 0 PID: 379 Comm: syz-executor003 Tainted: G W 5.10.75-syzkaller-01082-g234d53d2bb60 #0 [ 175.963759][ T379] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 175.973793][ T379] Call Trace: [ 175.977063][ T379] dump_stack_lvl+0x1e2/0x24b [ 175.981777][ T379] ? show_regs_print_info+0x18/0x18 [ 175.986948][ T379] dump_stack+0x15/0x1d [ 175.991086][ T379] should_fail+0x3c0/0x510 [ 175.995521][ T379] ? vfat_add_entry+0x206/0x3850 [ 176.000453][ T379] __should_failslab+0x9f/0xe0 [ 176.005190][ T379] should_failslab+0x9/0x20 [ 176.009669][ T379] kmem_cache_alloc_trace+0x42/0x3a0 [ 176.014926][ T379] ? __kasan_check_read+0x11/0x20 [ 176.020012][ T379] ? __page_pinner_migration_failed+0xdd/0x250 [ 176.026227][ T379] vfat_add_entry+0x206/0x3850 [ 176.030967][ T379] ? __mod_memcg_state+0xb4/0x230 [ 176.035965][ T379] ? __kasan_check_write+0x14/0x20 [ 176.041050][ T379] ? percpu_counter_add_batch+0x14b/0x170 [ 176.046743][ T379] ? __rcu_read_lock+0x50/0x50 [ 176.051493][ T379] ? __add_wb_stat+0x5f/0x90 [ 176.056058][ T379] ? vfat_rename+0xff0/0xff0 [ 176.060638][ T379] ? __kasan_check_write+0x14/0x20 [ 176.065733][ T379] ? __brelse+0x5a/0xa0 [ 176.069862][ T379] ? fat_zeroed_cluster+0x82a/0x8a0 [ 176.075047][ T379] ? mark_buffer_dirty+0x1e3/0x310 [ 176.080130][ T379] ? _raw_spin_unlock+0x4d/0x70 [ 176.084965][ T379] ? fat_alloc_new_dir+0x857/0xd70 [ 176.090054][ T379] ? __fat_remove_entries+0x4f0/0x4f0 [ 176.095413][ T379] ? __kasan_check_write+0x14/0x20 [ 176.100500][ T379] ? __d_lookup_done+0x102/0x2a0 [ 176.105410][ T379] ? may_create+0x635/0x8b0 [ 176.109887][ T379] vfat_mkdir+0x1a8/0x420 [ 176.114189][ T379] ? vfat_unlink+0x3a0/0x3a0 [ 176.118769][ T379] ? selinux_inode_mkdir+0x22/0x30 [ 176.123852][ T379] ? security_inode_mkdir+0xf1/0x130 [ 176.129110][ T379] vfs_mkdir+0x435/0x610 [ 176.133326][ T379] open_or_create_special_dir+0xbf/0x150 [ 176.138929][ T379] incfs_mount_fs+0x3e9/0x840 [ 176.143577][ T379] ? incfs_unlink+0x80/0x80 [ 176.148055][ T379] ? selinux_capable+0x39/0x50 [ 176.152791][ T379] legacy_get_tree+0xf0/0x190 [ 176.157439][ T379] ? incfs_unlink+0x80/0x80 [ 176.161928][ T379] vfs_get_tree+0x89/0x270 [ 176.166319][ T379] path_mount+0x1975/0x2ab0 [ 176.170796][ T379] ? mark_mounts_for_expiry+0x4b0/0x4b0 [ 176.176314][ T379] ? getname_flags+0x207/0x650 [ 176.181224][ T379] ? user_path_at_empty+0x40/0x50 [ 176.186219][ T379] __se_sys_mount+0x2f7/0x3b0 [ 176.190871][ T379] ? __x64_sys_mount+0xd0/0xd0 [ 176.195607][ T379] ? debug_smp_processor_id+0x1c/0x20 [ 176.200976][ T379] __x64_sys_mount+0xbf/0xd0 [ 176.205562][ T379] do_syscall_64+0x31/0x70 [ 176.209970][ T379] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 176.215846][ T379] RIP: 0033:0x7fe663391fd9 [ 176.220233][ T379] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 176.239875][ T379] RSP: 002b:00007ffd0df4bbf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 176.248260][ T379] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fe663391fd9 [ 176.256204][ T379] RDX: 0000000020000340 RSI: 0000000020000000 RDI: 00000000200002c0 [ 176.264148][ T379] RBP: 00007ffd0df4bc20 R08: 0000000000000000 R09: 00007ffd0df4bc30 [ 176.272093][ T379] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000003 [ 176.280043][ T379] R13: 00007ffd0df4bc60 R14: 00007ffd0df4bc40 R15: 0000000000000006 [ 176.288091][ T379] incfs: Can't find or create .index dir in ./file0 [ 176.295982][ T365] BUG: Dentry ffff888119deb660{i=0,n=.index} still in use (1) [unmount of vfat loop0] [ 176.305648][ T365] ------------[ cut here ]------------ [ 176.311088][ T365] WARNING: CPU: 1 PID: 365 at fs/dcache.c:1616 umount_check+0x18d/0x1d0 [ 176.319467][ T365] Modules linked in: [ 176.323362][ T365] CPU: 1 PID: 365 Comm: syz-executor003 Tainted: G W 5.10.75-syzkaller-01082-g234d53d2bb60 #0 [ 176.334915][ T365] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 176.344997][ T365] RIP: 0010:umount_check+0x18d/0x1d0 [ 176.350290][ T365] Code: 8b 0b 49 81 c6 f8 03 00 00 48 c7 c7 40 43 2e 85 4c 89 e6 48 8b 55 d0 4c 89 e1 45 89 f8 31 c0 41 56 e8 ae d9 9e ff 48 83 c4 08 <0f> 0b e9 f1 fe ff ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c c9 fe ff [ 176.370008][ T365] RSP: 0018:ffffc90000bf7c78 EFLAGS: 00010286 [ 176.376089][ T365] RAX: 0000000000000054 RBX: ffffffff866b3380 RCX: 40c1636306cab800 [ 176.384047][ T365] RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000000 [ 176.392037][ T365] RBP: ffffc90000bf7ca8 R08: ffffffff81545368 R09: ffffed103ee295d8 [ 176.400043][ T365] R10: ffffed103ee295d8 R11: 0000000000000000 R12: ffff888119deb660 [ 176.408031][ T365] R13: dffffc0000000000 R14: ffff8881061e23f8 R15: 0000000000000001 [ 176.416060][ T365] FS: 00005555574af300(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 176.424964][ T365] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 176.431557][ T365] CR2: 00005555574b8628 CR3: 000000011c8fe000 CR4: 00000000003506a0 [ 176.439639][ T365] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 176.447617][ T365] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 176.455606][ T365] Call Trace: [ 176.458886][ T365] d_walk+0x309/0x540 [ 176.462865][ T365] ? __d_free+0x30/0x30 [ 176.467018][ T365] shrink_dcache_for_umount+0x8e/0x1b0 [ 176.472461][ T365] generic_shutdown_super+0x66/0x2c0 [ 176.477760][ T365] kill_block_super+0x80/0xe0 [ 176.482602][ T365] deactivate_locked_super+0xb0/0x100 [ 176.487978][ T365] deactivate_super+0xa5/0xd0 [ 176.492638][ T365] cleanup_mnt+0x45f/0x510 [ 176.497059][ T365] __cleanup_mnt+0x19/0x20 [ 176.501468][ T365] task_work_run+0x147/0x1b0 [ 176.506159][ T365] exit_to_user_mode_prepare+0xc3/0xe0 [ 176.511734][ T365] syscall_exit_to_user_mode+0x24/0x40 [ 176.517211][ T365] do_syscall_64+0x3d/0x70 [ 176.521718][ T365] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 176.527778][ T365] RIP: 0033:0x7fe663393377 [ 176.532181][ T365] Code: 07 00 48 83 c4 08 5b 5d c3 66 2e 0f 1f 84 00 00 00 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 a6 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 176.551824][ T365] RSP: 002b:00007ffd0df4ab08 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6 [ 176.560245][ T365] RAX: 0000000000000000 RBX: 000000000002af37 RCX: 00007fe663393377 [ 176.568236][ T365] RDX: 00007ffd0df4abc9 RSI: 0000000000000002 RDI: 00007ffd0df4abc0 [ 176.576213][ T365] RBP: 00007ffd0df4abc0 R08: 00000000ffffffff R09: 00007ffd0df4a9a0 [ 176.584164][ T365] R10: 00005555574b0633 R11: 0000000000000202 R12: 00007ffd0df4bc40 [ 176.592174][ T365] R13: 00005555574b05f0 R14: 00007ffd0df4ab30 R15: 0000000000000007 [ 176.600238][ T365] ---[ end trace e3e057aa0f2d9c37 ]--- [ 176.606019][ T365] VFS: Busy inodes after unmount of loop0. Self-destruct in 5 seconds. Have a nice day... executing program [ 176.707861][ T381] FAULT_INJECTION: forcing a failure. [ 176.707861][ T381] name failslab, interval 1, probability 0, space 0, times 0 [ 176.720681][ T381] CPU: 1 PID: 381 Comm: syz-executor003 Tainted: G W 5.10.75-syzkaller-01082-g234d53d2bb60 #0 [ 176.732232][ T381] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 176.742266][ T381] Call Trace: [ 176.745544][ T381] dump_stack_lvl+0x1e2/0x24b [ 176.750191][ T381] ? show_regs_print_info+0x18/0x18 [ 176.755363][ T381] ? stack_trace_save+0x1e0/0x1e0 [ 176.760361][ T381] ? arch_stack_walk+0x106/0x140 [ 176.765271][ T381] dump_stack+0x15/0x1d [ 176.769488][ T381] should_fail+0x3c0/0x510 [ 176.773875][ T381] ? xas_create+0x651/0x1870 [ 176.778920][ T381] __should_failslab+0x9f/0xe0 [ 176.783673][ T381] should_failslab+0x9/0x20 [ 176.788162][ T381] kmem_cache_alloc+0x43/0x380 [ 176.792906][ T381] xas_create+0x651/0x1870 [ 176.797301][ T381] xas_store+0x9e/0x1ad0 [ 176.801525][ T381] ? xas_find_conflict+0x71b/0x830 [ 176.806615][ T381] __add_to_page_cache_locked+0x5f5/0xb70 [ 176.812310][ T381] ? replace_page_cache_page+0xb00/0xb00 [ 176.817916][ T381] ? workingset_activation+0x250/0x250 [ 176.823346][ T381] ? __alloc_pages_nodemask+0x3c8/0x820 [ 176.828863][ T381] add_to_page_cache_lru+0x123/0x290 [ 176.834120][ T381] ? add_to_page_cache_locked+0x40/0x40 [ 176.839637][ T381] ? __find_get_block_slow+0x12b/0x4e0 [ 176.845068][ T381] pagecache_get_page+0x725/0x9c0 [ 176.850087][ T381] grow_dev_page+0xba/0x4c0 [ 176.854567][ T381] __getblk_gfp+0x18d/0x2a0 [ 176.859055][ T381] fat_alloc_new_dir+0x27a/0xd70 [ 176.863963][ T381] ? __fat_remove_entries+0x4f0/0x4f0 [ 176.869316][ T381] ? __kasan_check_write+0x14/0x20 [ 176.874399][ T381] ? __d_lookup_rcu+0xc0/0x660 [ 176.879132][ T381] ? may_create+0x635/0x8b0 [ 176.883609][ T381] vfat_mkdir+0x176/0x420 [ 176.887908][ T381] ? vfat_unlink+0x3a0/0x3a0 [ 176.892469][ T381] ? selinux_inode_mkdir+0x22/0x30 [ 176.897553][ T381] ? security_inode_mkdir+0xf1/0x130 [ 176.902870][ T381] vfs_mkdir+0x435/0x610 [ 176.907086][ T381] open_or_create_special_dir+0xbf/0x150 [ 176.912706][ T381] incfs_mount_fs+0x3e9/0x840 [ 176.917353][ T381] ? incfs_unlink+0x80/0x80 [ 176.921828][ T381] ? selinux_capable+0x39/0x50 [ 176.926573][ T381] legacy_get_tree+0xf0/0x190 [ 176.931218][ T381] ? incfs_unlink+0x80/0x80 [ 176.935690][ T381] vfs_get_tree+0x89/0x270 [ 176.940080][ T381] path_mount+0x1975/0x2ab0 [ 176.944555][ T381] ? mark_mounts_for_expiry+0x4b0/0x4b0 [ 176.950073][ T381] ? getname_flags+0x207/0x650 [ 176.954808][ T381] ? user_path_at_empty+0x40/0x50 [ 176.959802][ T381] __se_sys_mount+0x2f7/0x3b0 [ 176.964454][ T381] ? __x64_sys_mount+0xd0/0xd0 [ 176.969367][ T381] ? debug_smp_processor_id+0x1c/0x20 [ 176.974711][ T381] __x64_sys_mount+0xbf/0xd0 [ 176.979273][ T381] do_syscall_64+0x31/0x70 [ 176.983662][ T381] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 176.989522][ T381] RIP: 0033:0x7fe663391fd9 [ 176.993909][ T381] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 177.013483][ T381] RSP: 002b:00007ffd0df4bbf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 177.021868][ T381] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fe663391fd9 [ 177.029811][ T381] RDX: 0000000020000340 RSI: 0000000020000000 RDI: 00000000200002c0 [ 177.037756][ T381] RBP: 00007ffd0df4bc20 R08: 0000000000000000 R09: 00007ffd0df4bc30 [ 177.045699][ T381] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000003 [ 177.053658][ T381] R13: 00007ffd0df4bc60 R14: 00007ffd0df4bc40 R15: 0000000000000007 [ 177.063258][ T381] incfs: ino conflict with backing FS 1 executing program [ 177.139777][ T383] FAULT_INJECTION: forcing a failure. [ 177.139777][ T383] name failslab, interval 1, probability 0, space 0, times 0 [ 177.152374][ T383] CPU: 0 PID: 383 Comm: syz-executor003 Tainted: G W 5.10.75-syzkaller-01082-g234d53d2bb60 #0 [ 177.163882][ T383] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 177.173953][ T383] Call Trace: [ 177.177219][ T383] dump_stack_lvl+0x1e2/0x24b [ 177.181866][ T383] ? show_regs_print_info+0x18/0x18 [ 177.187034][ T383] ? stack_trace_save+0x1e0/0x1e0 [ 177.192051][ T383] ? arch_stack_walk+0x106/0x140 [ 177.196958][ T383] dump_stack+0x15/0x1d [ 177.201085][ T383] should_fail+0x3c0/0x510 [ 177.205475][ T383] ? xas_create+0x651/0x1870 [ 177.210037][ T383] __should_failslab+0x9f/0xe0 [ 177.214770][ T383] should_failslab+0x9/0x20 [ 177.219258][ T383] kmem_cache_alloc+0x43/0x380 [ 177.223989][ T383] xas_create+0x651/0x1870 [ 177.228389][ T383] xas_store+0x9e/0x1ad0 [ 177.232602][ T383] ? xas_find_conflict+0x71b/0x830 [ 177.237684][ T383] __add_to_page_cache_locked+0x5f5/0xb70 [ 177.243373][ T383] ? replace_page_cache_page+0xb00/0xb00 [ 177.248989][ T383] ? workingset_activation+0x250/0x250 [ 177.254417][ T383] ? __alloc_pages_nodemask+0x3c8/0x820 [ 177.259930][ T383] add_to_page_cache_lru+0x123/0x290 [ 177.265183][ T383] ? add_to_page_cache_locked+0x40/0x40 [ 177.270709][ T383] ? __find_get_block_slow+0x12b/0x4e0 [ 177.276149][ T383] pagecache_get_page+0x725/0x9c0 [ 177.281146][ T383] grow_dev_page+0xba/0x4c0 [ 177.285715][ T383] __getblk_gfp+0x18d/0x2a0 [ 177.290195][ T383] fat_alloc_new_dir+0x27a/0xd70 [ 177.295119][ T383] ? __fat_remove_entries+0x4f0/0x4f0 [ 177.300486][ T383] ? __kasan_check_write+0x14/0x20 [ 177.305655][ T383] ? __d_lookup_rcu+0xc0/0x660 [ 177.310400][ T383] ? may_create+0x635/0x8b0 [ 177.314996][ T383] vfat_mkdir+0x176/0x420 [ 177.319302][ T383] ? vfat_unlink+0x3a0/0x3a0 [ 177.323874][ T383] ? selinux_inode_mkdir+0x22/0x30 [ 177.329099][ T383] ? security_inode_mkdir+0xf1/0x130 [ 177.334368][ T383] vfs_mkdir+0x435/0x610 [ 177.338594][ T383] open_or_create_special_dir+0xbf/0x150 [ 177.344265][ T383] incfs_mount_fs+0x3e9/0x840 [ 177.348918][ T383] ? incfs_unlink+0x80/0x80 [ 177.353423][ T383] ? selinux_capable+0x39/0x50 [ 177.358178][ T383] legacy_get_tree+0xf0/0x190 [ 177.362825][ T383] ? incfs_unlink+0x80/0x80 [ 177.367311][ T383] vfs_get_tree+0x89/0x270 [ 177.371701][ T383] path_mount+0x1975/0x2ab0 [ 177.376176][ T383] ? mark_mounts_for_expiry+0x4b0/0x4b0 [ 177.381693][ T383] ? getname_flags+0x207/0x650 [ 177.386427][ T383] ? user_path_at_empty+0x40/0x50 [ 177.391421][ T383] __se_sys_mount+0x2f7/0x3b0 [ 177.396070][ T383] ? __x64_sys_mount+0xd0/0xd0 [ 177.400807][ T383] ? debug_smp_processor_id+0x1c/0x20 [ 177.406149][ T383] __x64_sys_mount+0xbf/0xd0 [ 177.410712][ T383] do_syscall_64+0x31/0x70 [ 177.415098][ T383] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 177.420974][ T383] RIP: 0033:0x7fe663391fd9 [ 177.425375][ T383] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 177.444973][ T383] RSP: 002b:00007ffd0df4bbf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 177.453368][ T383] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fe663391fd9 [ 177.461313][ T383] RDX: 0000000020000340 RSI: 0000000020000000 RDI: 00000000200002c0 [ 177.469256][ T383] RBP: 00007ffd0df4bc20 R08: 0000000000000000 R09: 00007ffd0df4bc30 [ 177.477200][ T383] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000003 [ 177.485146][ T383] R13: 00007ffd0df4bc60 R14: 00007ffd0df4bc40 R15: 0000000000000008 [ 177.496334][ T383] incfs: ino conflict with backing FS 1 executing program [ 177.570252][ T385] FAULT_INJECTION: forcing a failure. [ 177.570252][ T385] name failslab, interval 1, probability 0, space 0, times 0 [ 177.583197][ T385] CPU: 1 PID: 385 Comm: syz-executor003 Tainted: G W 5.10.75-syzkaller-01082-g234d53d2bb60 #0 [ 177.594834][ T385] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 177.604998][ T385] Call Trace: [ 177.608277][ T385] dump_stack_lvl+0x1e2/0x24b [ 177.612930][ T385] ? show_regs_print_info+0x18/0x18 [ 177.618152][ T385] ? is_module_text_address+0xe1/0x140 [ 177.623591][ T385] ? stack_trace_save+0x1e0/0x1e0 [ 177.628637][ T385] dump_stack+0x15/0x1d [ 177.632789][ T385] should_fail+0x3c0/0x510 [ 177.637179][ T385] ? mempool_alloc_slab+0x1d/0x30 [ 177.642184][ T385] __should_failslab+0x9f/0xe0 [ 177.646920][ T385] should_failslab+0x9/0x20 [ 177.651398][ T385] kmem_cache_alloc+0x43/0x380 [ 177.656134][ T385] ? mempool_free+0x310/0x310 [ 177.660781][ T385] mempool_alloc_slab+0x1d/0x30 [ 177.665609][ T385] mempool_alloc+0x113/0x650 [ 177.670194][ T385] ? __kasan_check_read+0x11/0x20 [ 177.675190][ T385] ? __page_pinner_migration_failed+0xdd/0x250 [ 177.681314][ T385] ? mempool_resize+0x8e0/0x8e0 [ 177.686135][ T385] ? _raw_spin_trylock_bh+0x1a0/0x1a0 [ 177.691479][ T385] ? pagecache_get_page+0x907/0x9c0 [ 177.696648][ T385] bio_alloc_bioset+0x1db/0x650 [ 177.701482][ T385] ? __kasan_check_write+0x14/0x20 [ 177.706564][ T385] ? __find_get_block+0xa6b/0xbd0 [ 177.711573][ T385] ? bio_chain_endio+0x120/0x120 [ 177.716492][ T385] ? write_boundary_block+0x150/0x150 [ 177.721835][ T385] ? __rcu_read_lock+0x50/0x50 [ 177.726571][ T385] submit_bh_wbc+0x1cb/0x740 [ 177.731136][ T385] __bread_gfp+0x187/0x320 [ 177.735524][ T385] fat12_ent_bread+0x17f/0x510 [ 177.740298][ T385] ? fat12_ent_blocknr+0xb4/0x1e0 [ 177.745304][ T385] ? fat12_ent_set_ptr+0x270/0x270 [ 177.750399][ T385] fat_alloc_clusters+0x887/0x1660 [ 177.755482][ T385] ? __rcu_read_lock+0x50/0x50 [ 177.760307][ T385] ? fat_mirror_bhs+0x480/0x480 [ 177.765147][ T385] ? memcpy+0x56/0x70 [ 177.769111][ T385] fat_alloc_new_dir+0x19e/0xd70 [ 177.774022][ T385] ? __fat_remove_entries+0x4f0/0x4f0 [ 177.779732][ T385] ? __kasan_check_write+0x14/0x20 [ 177.784837][ T385] ? __d_lookup_rcu+0xc0/0x660 [ 177.789657][ T385] ? may_create+0x635/0x8b0 [ 177.794148][ T385] vfat_mkdir+0x176/0x420 [ 177.798718][ T385] ? vfat_unlink+0x3a0/0x3a0 [ 177.803306][ T385] ? selinux_inode_mkdir+0x22/0x30 [ 177.808400][ T385] ? security_inode_mkdir+0xf1/0x130 [ 177.813660][ T385] vfs_mkdir+0x435/0x610 [ 177.817879][ T385] open_or_create_special_dir+0xbf/0x150 [ 177.823501][ T385] incfs_mount_fs+0x3e9/0x840 [ 177.828166][ T385] ? incfs_unlink+0x80/0x80 [ 177.832659][ T385] ? selinux_capable+0x39/0x50 [ 177.837394][ T385] legacy_get_tree+0xf0/0x190 [ 177.842300][ T385] ? incfs_unlink+0x80/0x80 [ 177.846949][ T385] vfs_get_tree+0x89/0x270 [ 177.851338][ T385] path_mount+0x1975/0x2ab0 [ 177.855826][ T385] ? mark_mounts_for_expiry+0x4b0/0x4b0 [ 177.861352][ T385] ? getname_flags+0x207/0x650 [ 177.866101][ T385] ? user_path_at_empty+0x40/0x50 [ 177.871095][ T385] __se_sys_mount+0x2f7/0x3b0 [ 177.875743][ T385] ? __x64_sys_mount+0xd0/0xd0 [ 177.880482][ T385] ? debug_smp_processor_id+0x1c/0x20 [ 177.885836][ T385] __x64_sys_mount+0xbf/0xd0 [ 177.890466][ T385] do_syscall_64+0x31/0x70 [ 177.894879][ T385] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 177.900753][ T385] RIP: 0033:0x7fe663391fd9 [ 177.905150][ T385] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 177.924733][ T385] RSP: 002b:00007ffd0df4bbf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 177.933156][ T385] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fe663391fd9 [ 177.941112][ T385] RDX: 0000000020000340 RSI: 0000000020000000 RDI: 00000000200002c0 [ 177.949151][ T385] RBP: 00007ffd0df4bc20 R08: 0000000000000000 R09: 00007ffd0df4bc30 [ 177.957098][ T385] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000003 [ 177.965046][ T385] R13: 00007ffd0df4bc60 R14: 00007ffd0df4bc40 R15: 0000000000000009 [ 177.973458][ T385] incfs: ino conflict with backing FS 1 executing program [ 178.060486][ T387] FAULT_INJECTION: forcing a failure. [ 178.060486][ T387] name failslab, interval 1, probability 0, space 0, times 0 [ 178.073318][ T387] CPU: 1 PID: 387 Comm: syz-executor003 Tainted: G W 5.10.75-syzkaller-01082-g234d53d2bb60 #0 [ 178.084839][ T387] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 178.094872][ T387] Call Trace: [ 178.098143][ T387] dump_stack_lvl+0x1e2/0x24b [ 178.102793][ T387] ? show_regs_print_info+0x18/0x18 [ 178.107966][ T387] dump_stack+0x15/0x1d [ 178.112109][ T387] should_fail+0x3c0/0x510 [ 178.116498][ T387] ? vfat_add_entry+0x357/0x3850 [ 178.121412][ T387] __should_failslab+0x9f/0xe0 [ 178.126150][ T387] should_failslab+0x9/0x20 [ 178.130628][ T387] kmem_cache_alloc+0x43/0x380 [ 178.135379][ T387] vfat_add_entry+0x357/0x3850 [ 178.140127][ T387] ? __mod_memcg_state+0xb4/0x230 [ 178.145184][ T387] ? __kasan_check_write+0x14/0x20 [ 178.150278][ T387] ? percpu_counter_add_batch+0x14b/0x170 [ 178.155976][ T387] ? vfat_rename+0xff0/0xff0 [ 178.160548][ T387] ? __kasan_check_write+0x14/0x20 [ 178.165634][ T387] ? __brelse+0x5a/0xa0 [ 178.169772][ T387] ? fat_zeroed_cluster+0x82a/0x8a0 [ 178.174943][ T387] ? mark_buffer_dirty+0x1e3/0x310 [ 178.180044][ T387] ? _raw_spin_unlock+0x4d/0x70 [ 178.184867][ T387] ? fat_alloc_new_dir+0x857/0xd70 [ 178.189948][ T387] ? __fat_remove_entries+0x4f0/0x4f0 [ 178.195291][ T387] ? 0xffffffff81000000 [ 178.199420][ T387] ? __d_lookup_rcu+0xc0/0x660 [ 178.204158][ T387] ? may_create+0x635/0x8b0 [ 178.208659][ T387] vfat_mkdir+0x1a8/0x420 [ 178.212960][ T387] ? vfat_unlink+0x3a0/0x3a0 [ 178.217525][ T387] ? selinux_inode_mkdir+0x22/0x30 [ 178.222623][ T387] ? security_inode_mkdir+0xf1/0x130 [ 178.227889][ T387] vfs_mkdir+0x435/0x610 [ 178.232114][ T387] open_or_create_special_dir+0xbf/0x150 [ 178.237732][ T387] incfs_mount_fs+0x3e9/0x840 [ 178.242405][ T387] ? incfs_unlink+0x80/0x80 [ 178.246885][ T387] ? selinux_capable+0x39/0x50 [ 178.251622][ T387] legacy_get_tree+0xf0/0x190 [ 178.256280][ T387] ? incfs_unlink+0x80/0x80 [ 178.260757][ T387] vfs_get_tree+0x89/0x270 [ 178.265145][ T387] path_mount+0x1975/0x2ab0 [ 178.269623][ T387] ? mark_mounts_for_expiry+0x4b0/0x4b0 [ 178.275149][ T387] ? getname_flags+0x207/0x650 [ 178.279887][ T387] ? user_path_at_empty+0x40/0x50 [ 178.284892][ T387] __se_sys_mount+0x2f7/0x3b0 [ 178.289541][ T387] ? __x64_sys_mount+0xd0/0xd0 [ 178.294282][ T387] ? debug_smp_processor_id+0x1c/0x20 [ 178.299626][ T387] __x64_sys_mount+0xbf/0xd0 [ 178.304187][ T387] do_syscall_64+0x31/0x70 [ 178.308578][ T387] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 178.314532][ T387] RIP: 0033:0x7fe663391fd9 [ 178.318921][ T387] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 178.338520][ T387] RSP: 002b:00007ffd0df4bbf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 178.346936][ T387] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fe663391fd9 [ 178.354885][ T387] RDX: 0000000020000340 RSI: 0000000020000000 RDI: 00000000200002c0 [ 178.362839][ T387] RBP: 00007ffd0df4bc20 R08: 0000000000000000 R09: 00007ffd0df4bc30 [ 178.370798][ T387] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000003 [ 178.378765][ T387] R13: 00007ffd0df4bc60 R14: 00007ffd0df4bc40 R15: 000000000000000a [ 178.386836][ T387] incfs: Can't find or create .index dir in ./file0 [ 178.394376][ T365] BUG: Dentry ffff888119dc7ee0{i=0,n=.index} still in use (1) [unmount of vfat loop0] [ 178.404069][ T365] ------------[ cut here ]------------ [ 178.409541][ T365] WARNING: CPU: 1 PID: 365 at fs/dcache.c:1616 umount_check+0x18d/0x1d0 [ 178.417860][ T365] Modules linked in: [ 178.421763][ T365] CPU: 1 PID: 365 Comm: syz-executor003 Tainted: G W 5.10.75-syzkaller-01082-g234d53d2bb60 #0 [ 178.433320][ T365] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 178.443385][ T365] RIP: 0010:umount_check+0x18d/0x1d0 [ 178.448685][ T365] Code: 8b 0b 49 81 c6 f8 03 00 00 48 c7 c7 40 43 2e 85 4c 89 e6 48 8b 55 d0 4c 89 e1 45 89 f8 31 c0 41 56 e8 ae d9 9e ff 48 83 c4 08 <0f> 0b e9 f1 fe ff ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c c9 fe ff [ 178.468301][ T365] RSP: 0018:ffffc90000bf7c78 EFLAGS: 00010286 [ 178.474353][ T365] RAX: 0000000000000054 RBX: ffffffff866b3380 RCX: 40c1636306cab800 [ 178.482345][ T365] RDX: 0000000000000000 RSI: 0000000080000002 RDI: 0000000000000000 [ 178.490328][ T365] RBP: ffffc90000bf7ca8 R08: ffffffff81545368 R09: ffffed103ee295d8 [ 178.498319][ T365] R10: ffffed103ee295d8 R11: 0000000000000000 R12: ffff888119dc7ee0 [ 178.506292][ T365] R13: dffffc0000000000 R14: ffff8881057a83f8 R15: 0000000000000001 [ 178.514240][ T365] FS: 00005555574af300(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 178.523167][ T365] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 178.529760][ T365] CR2: 00005555574b8628 CR3: 000000011c8fe000 CR4: 00000000003506a0 [ 178.537759][ T365] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 178.545756][ T365] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 178.553829][ T365] Call Trace: [ 178.557143][ T365] d_walk+0x309/0x540 [ 178.561122][ T365] ? __d_free+0x30/0x30 [ 178.565257][ T365] shrink_dcache_for_umount+0x8e/0x1b0 [ 178.570737][ T365] generic_shutdown_super+0x66/0x2c0 [ 178.576045][ T365] kill_block_super+0x80/0xe0 [ 178.580698][ T365] deactivate_locked_super+0xb0/0x100 [ 178.586072][ T365] deactivate_super+0xa5/0xd0 [ 178.590731][ T365] cleanup_mnt+0x45f/0x510 [ 178.595122][ T365] __cleanup_mnt+0x19/0x20 [ 178.599577][ T365] task_work_run+0x147/0x1b0 [ 178.604157][ T365] exit_to_user_mode_prepare+0xc3/0xe0 [ 178.609620][ T365] syscall_exit_to_user_mode+0x24/0x40 [ 178.615066][ T365] do_syscall_64+0x3d/0x70 [ 178.619489][ T365] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 178.625375][ T365] RIP: 0033:0x7fe663393377 [ 178.629792][ T365] Code: 07 00 48 83 c4 08 5b 5d c3 66 2e 0f 1f 84 00 00 00 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 a6 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 178.649399][ T365] RSP: 002b:00007ffd0df4ab08 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6 [ 178.657837][ T365] RAX: 0000000000000000 RBX: 000000000002b77f RCX: 00007fe663393377 [ 178.665833][ T365] RDX: 00007ffd0df4abca RSI: 0000000000000002 RDI: 00007ffd0df4abc0 [ 178.673778][ T365] RBP: 00007ffd0df4abc0 R08: 00000000ffffffff R09: 00007ffd0df4a9a0 [ 178.681775][ T365] R10: 00005555574b0633 R11: 0000000000000202 R12: 00007ffd0df4bc40 [ 178.689750][ T365] R13: 00005555574b05f0 R14: 00007ffd0df4ab30 R15: 000000000000000b [ 178.697823][ T365] ---[ end trace e3e057aa0f2d9c38 ]--- [ 178.703651][ T365] VFS: Busy inodes after unmount of loop0. Self-destruct in 5 seconds. Have a nice day... executing program [ 178.759784][ T389] FAULT_INJECTION: forcing a failure. [ 178.759784][ T389] name failslab, interval 1, probability 0, space 0, times 0 [ 178.772448][ T389] CPU: 0 PID: 389 Comm: syz-executor003 Tainted: G W 5.10.75-syzkaller-01082-g234d53d2bb60 #0 [ 178.783960][ T389] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 178.794013][ T389] Call Trace: [ 178.797287][ T389] dump_stack_lvl+0x1e2/0x24b [ 178.801945][ T389] ? devkmsg_release+0x127/0x127 [ 178.806867][ T389] ? show_regs_print_info+0x18/0x18 [ 178.812044][ T389] ? is_bpf_text_address+0x1a2/0x1c0 [ 178.817320][ T389] ? is_module_text_address+0xe1/0x140 [ 178.822756][ T389] dump_stack+0x15/0x1d [ 178.826908][ T389] should_fail+0x3c0/0x510 [ 178.831304][ T389] ? __d_alloc+0x2d/0x6b0 [ 178.835606][ T389] __should_failslab+0x9f/0xe0 [ 178.840343][ T389] should_failslab+0x9/0x20 [ 178.844821][ T389] kmem_cache_alloc+0x43/0x380 [ 178.849581][ T389] ? avc_has_perm_noaudit+0x358/0x4d0 [ 178.854946][ T389] __d_alloc+0x2d/0x6b0 [ 178.859099][ T389] ? avc_has_perm_noaudit+0x2ed/0x4d0 [ 178.864495][ T389] d_alloc_parallel+0xf3/0x1360 [ 178.869321][ T389] ? avc_denied+0x1b0/0x1b0 [ 178.873801][ T389] ? ____kasan_kmalloc+0xf3/0x110 [ 178.878798][ T389] ? __kasan_kmalloc+0x9/0x10 [ 178.883446][ T389] ? selinux_inode_permission+0x44e/0x6a0 [ 178.889170][ T389] ? d_hash_and_lookup+0x200/0x200 [ 178.894255][ T389] ? selinux_inode_follow_link+0x3c0/0x3c0 [ 178.900045][ T389] ? __rcu_read_lock+0x50/0x50 [ 178.904782][ T389] __lookup_slow+0x14e/0x400 [ 178.909347][ T389] ? lookup_one_len+0x2c0/0x2c0 [ 178.914168][ T389] ? inode_permission+0xe0/0x520 [ 178.919080][ T389] lookup_one_len+0x17f/0x2c0 [ 178.923727][ T389] ? __kasan_check_write+0x14/0x20 [ 178.928810][ T389] ? lookup_one_len_common+0x450/0x450 [ 178.934242][ T389] incfs_lookup_dentry+0x5f/0xb0 [ 178.939149][ T389] open_or_create_special_dir+0x49/0x150 [ 178.944753][ T389] incfs_mount_fs+0x3e9/0x840 [ 178.949419][ T389] ? incfs_unlink+0x80/0x80 [ 178.953897][ T389] ? selinux_capable+0x39/0x50 [ 178.958636][ T389] legacy_get_tree+0xf0/0x190 [ 178.963281][ T389] ? incfs_unlink+0x80/0x80 [ 178.967755][ T389] vfs_get_tree+0x89/0x270 [ 178.972162][ T389] path_mount+0x1975/0x2ab0 [ 178.976656][ T389] ? mark_mounts_for_expiry+0x4b0/0x4b0 [ 178.982187][ T389] ? getname_flags+0x207/0x650 [ 178.986945][ T389] ? user_path_at_empty+0x40/0x50 [ 178.991948][ T389] __se_sys_mount+0x2f7/0x3b0 [ 178.996612][ T389] ? __x64_sys_mount+0xd0/0xd0 [ 179.001348][ T389] ? debug_smp_processor_id+0x1c/0x20 [ 179.006689][ T389] __x64_sys_mount+0xbf/0xd0 [ 179.011252][ T389] do_syscall_64+0x31/0x70 [ 179.015641][ T389] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 179.021506][ T389] RIP: 0033:0x7fe663391fd9 [ 179.025893][ T389] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 179.045474][ T389] RSP: 002b:00007ffd0df4bbf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 179.053860][ T389] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fe663391fd9 [ 179.061806][ T389] RDX: 0000000020000340 RSI: 0000000020000000 RDI: 00000000200002c0 [ 179.069750][ T389] RBP: 00007ffd0df4bc20 R08: 0000000000000000 R09: 00007ffd0df4bc30 [ 179.077701][ T389] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000003 [ 179.085655][ T389] R13: 00007ffd0df4bc60 R14: 00007ffd0df4bc40 R15: 000000000000000b [ 179.093801][ T389] incfs_lookup_dentry err:-12 [ 179.098532][ T389] incfs: Can't find or create .index dir in ./file0 executing program [ 179.219926][ T391] FAULT_INJECTION: forcing a failure. [ 179.219926][ T391] name failslab, interval 1, probability 0, space 0, times 0 [ 179.232530][ T391] CPU: 0 PID: 391 Comm: syz-executor003 Tainted: G W 5.10.75-syzkaller-01082-g234d53d2bb60 #0 [ 179.244052][ T391] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 179.254094][ T391] Call Trace: [ 179.257384][ T391] dump_stack_lvl+0x1e2/0x24b [ 179.262043][ T391] ? show_regs_print_info+0x18/0x18 [ 179.267234][ T391] ? stack_trace_save+0x1e0/0x1e0 [ 179.272232][ T391] ? arch_stack_walk+0x106/0x140 [ 179.277143][ T391] dump_stack+0x15/0x1d [ 179.281280][ T391] should_fail+0x3c0/0x510 [ 179.285667][ T391] ? xas_create+0x651/0x1870 [ 179.290227][ T391] __should_failslab+0x9f/0xe0 [ 179.294963][ T391] should_failslab+0x9/0x20 [ 179.299441][ T391] kmem_cache_alloc+0x43/0x380 [ 179.304175][ T391] xas_create+0x651/0x1870 [ 179.308563][ T391] xas_store+0x9e/0x1ad0 [ 179.312774][ T391] ? xas_find_conflict+0x71b/0x830 [ 179.317856][ T391] __add_to_page_cache_locked+0x5f5/0xb70 [ 179.323550][ T391] ? replace_page_cache_page+0xb00/0xb00 [ 179.329165][ T391] ? workingset_activation+0x250/0x250 [ 179.334730][ T391] ? __alloc_pages_nodemask+0x3c8/0x820 [ 179.340253][ T391] add_to_page_cache_lru+0x123/0x290 [ 179.345584][ T391] ? add_to_page_cache_locked+0x40/0x40 [ 179.351113][ T391] ? __find_get_block_slow+0x12b/0x4e0 [ 179.356557][ T391] pagecache_get_page+0x725/0x9c0 [ 179.361558][ T391] grow_dev_page+0xba/0x4c0 [ 179.366034][ T391] __getblk_gfp+0x18d/0x2a0 [ 179.370521][ T391] fat_alloc_new_dir+0x27a/0xd70 [ 179.375436][ T391] ? __fat_remove_entries+0x4f0/0x4f0 [ 179.380781][ T391] ? __kasan_check_write+0x14/0x20 [ 179.385862][ T391] ? __d_lookup_rcu+0xc0/0x660 [ 179.390611][ T391] ? may_create+0x635/0x8b0 [ 179.395101][ T391] vfat_mkdir+0x176/0x420 [ 179.399400][ T391] ? vfat_unlink+0x3a0/0x3a0 [ 179.403969][ T391] ? selinux_inode_mkdir+0x22/0x30 [ 179.409051][ T391] ? security_inode_mkdir+0xf1/0x130 [ 179.414305][ T391] vfs_mkdir+0x435/0x610 [ 179.418518][ T391] open_or_create_special_dir+0xbf/0x150 [ 179.424120][ T391] incfs_mount_fs+0x3e9/0x840 [ 179.428768][ T391] ? incfs_unlink+0x80/0x80 [ 179.433242][ T391] ? selinux_capable+0x39/0x50 [ 179.437975][ T391] legacy_get_tree+0xf0/0x190 [ 179.442621][ T391] ? incfs_unlink+0x80/0x80 [ 179.447097][ T391] vfs_get_tree+0x89/0x270 [ 179.451487][ T391] path_mount+0x1975/0x2ab0 [ 179.455962][ T391] ? mark_mounts_for_expiry+0x4b0/0x4b0 [ 179.461476][ T391] ? getname_flags+0x207/0x650 [ 179.466209][ T391] ? user_path_at_empty+0x40/0x50 [ 179.471290][ T391] __se_sys_mount+0x2f7/0x3b0 [ 179.475938][ T391] ? __x64_sys_mount+0xd0/0xd0 [ 179.480673][ T391] ? debug_smp_processor_id+0x1c/0x20 [ 179.486013][ T391] __x64_sys_mount+0xbf/0xd0 [ 179.490574][ T391] do_syscall_64+0x31/0x70 [ 179.494964][ T391] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 179.500828][ T391] RIP: 0033:0x7fe663391fd9 [ 179.505214][ T391] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 179.524802][ T391] RSP: 002b:00007ffd0df4bbf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 179.533205][ T391] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fe663391fd9 [ 179.541156][ T391] RDX: 0000000020000340 RSI: 0000000020000000 RDI: 00000000200002c0 [ 179.549104][ T391] RBP: 00007ffd0df4bc20 R08: 0000000000000000 R09: 00007ffd0df4bc30 [ 179.557049][ T391] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000003 executing program [ 179.565019][ T391] R13: 00007ffd0df4bc60 R14: 00007ffd0df4bc40 R15: 000000000000000c [ 179.576572][ T391] incfs: ino conflict with backing FS 1 [ 179.614061][ T393] FAULT_INJECTION: forcing a failure. [ 179.614061][ T393] name failslab, interval 1, probability 0, space 0, times 0 [ 179.626859][ T393] CPU: 0 PID: 393 Comm: syz-executor003 Tainted: G W 5.10.75-syzkaller-01082-g234d53d2bb60 #0 [ 179.638470][ T393] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 179.648549][ T393] Call Trace: [ 179.651818][ T393] dump_stack_lvl+0x1e2/0x24b [ 179.656468][ T393] ? show_regs_print_info+0x18/0x18 [ 179.661647][ T393] ? stack_trace_save+0x1e0/0x1e0 [ 179.666644][ T393] ? arch_stack_walk+0x106/0x140 [ 179.671576][ T393] dump_stack+0x15/0x1d [ 179.675703][ T393] should_fail+0x3c0/0x510 [ 179.680092][ T393] ? xas_create+0x651/0x1870 [ 179.684652][ T393] __should_failslab+0x9f/0xe0 [ 179.689387][ T393] should_failslab+0x9/0x20 [ 179.693860][ T393] kmem_cache_alloc+0x43/0x380 [ 179.698595][ T393] xas_create+0x651/0x1870 [ 179.702982][ T393] xas_store+0x9e/0x1ad0 [ 179.707201][ T393] ? xas_find_conflict+0x71b/0x830 [ 179.712296][ T393] __add_to_page_cache_locked+0x5f5/0xb70 [ 179.717998][ T393] ? replace_page_cache_page+0xb00/0xb00 [ 179.723617][ T393] ? workingset_activation+0x250/0x250 [ 179.729060][ T393] ? __alloc_pages_nodemask+0x3c8/0x820 [ 179.734585][ T393] add_to_page_cache_lru+0x123/0x290 [ 179.739870][ T393] ? add_to_page_cache_locked+0x40/0x40 [ 179.745402][ T393] ? __find_get_block_slow+0x12b/0x4e0 [ 179.750854][ T393] pagecache_get_page+0x725/0x9c0 [ 179.755872][ T393] grow_dev_page+0xba/0x4c0 [ 179.760359][ T393] __getblk_gfp+0x18d/0x2a0 [ 179.764838][ T393] fat_alloc_new_dir+0x27a/0xd70 [ 179.769749][ T393] ? __fat_remove_entries+0x4f0/0x4f0 [ 179.775098][ T393] ? __kasan_check_write+0x14/0x20 [ 179.780182][ T393] ? __d_lookup_rcu+0xc0/0x660 [ 179.784928][ T393] ? may_create+0x635/0x8b0 [ 179.789405][ T393] vfat_mkdir+0x176/0x420 [ 179.793708][ T393] ? vfat_unlink+0x3a0/0x3a0 [ 179.798291][ T393] ? selinux_inode_mkdir+0x22/0x30 [ 179.803376][ T393] ? security_inode_mkdir+0xf1/0x130 [ 179.808717][ T393] vfs_mkdir+0x435/0x610 [ 179.813009][ T393] open_or_create_special_dir+0xbf/0x150 [ 179.818634][ T393] incfs_mount_fs+0x3e9/0x840 [ 179.823288][ T393] ? incfs_unlink+0x80/0x80 [ 179.827765][ T393] ? selinux_capable+0x39/0x50 [ 179.832532][ T393] legacy_get_tree+0xf0/0x190 [ 179.837179][ T393] ? incfs_unlink+0x80/0x80 [ 179.841654][ T393] vfs_get_tree+0x89/0x270 [ 179.846042][ T393] path_mount+0x1975/0x2ab0 [ 179.850516][ T393] ? mark_mounts_for_expiry+0x4b0/0x4b0 [ 179.856032][ T393] ? getname_flags+0x207/0x650 [ 179.860766][ T393] ? user_path_at_empty+0x40/0x50 [ 179.865761][ T393] __se_sys_mount+0x2f7/0x3b0 [ 179.870411][ T393] ? __x64_sys_mount+0xd0/0xd0 [ 179.875167][ T393] ? debug_smp_processor_id+0x1c/0x20 [ 179.880509][ T393] __x64_sys_mount+0xbf/0xd0 [ 179.885073][ T393] do_syscall_64+0x31/0x70 [ 179.889465][ T393] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 179.895334][ T393] RIP: 0033:0x7fe663391fd9 [ 179.899721][ T393] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 179.919308][ T393] RSP: 002b:00007ffd0df4bbf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 179.927789][ T393] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fe663391fd9 [ 179.935732][ T393] RDX: 0000000020000340 RSI: 0000000020000000 RDI: 00000000200002c0 [ 179.943680][ T393] RBP: 00007ffd0df4bc20 R08: 0000000000000000 R09: 00007ffd0df4bc30 [ 179.951635][ T393] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000003 executing program [ 179.959597][ T393] R13: 00007ffd0df4bc60 R14: 00007ffd0df4bc40 R15: 000000000000000d [ 179.969091][ T393] incfs: ino conflict with backing FS 1 [ 180.019927][ T395] FAULT_INJECTION: forcing a failure. [ 180.019927][ T395] name fail_page_alloc, interval 1, probability 0, space 0, times 0 [ 180.033192][ T395] CPU: 0 PID: 395 Comm: syz-executor003 Tainted: G W 5.10.75-syzkaller-01082-g234d53d2bb60 #0 [ 180.044704][ T395] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 180.054739][ T395] Call Trace: [ 180.058010][ T395] dump_stack_lvl+0x1e2/0x24b [ 180.062661][ T395] ? show_regs_print_info+0x18/0x18 [ 180.067832][ T395] dump_stack+0x15/0x1d [ 180.071961][ T395] should_fail+0x3c0/0x510 [ 180.076351][ T395] should_fail_alloc_page+0x4f/0x60 [ 180.081524][ T395] __alloc_pages_nodemask+0x1b9/0x820 [ 180.086868][ T395] ? __x64_sys_mount+0xbf/0xd0 [ 180.091607][ T395] ? entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 180.097645][ T395] ? gfp_pfmemalloc_allowed+0x120/0x120 [ 180.103177][ T395] allocate_slab+0x6b/0x350 [ 180.107675][ T395] ___slab_alloc+0x143/0x2f0 [ 180.112240][ T395] ? alloc_buffer_head+0x26/0x110 [ 180.117239][ T395] kmem_cache_alloc+0x26f/0x380 [ 180.122061][ T395] ? alloc_buffer_head+0x26/0x110 [ 180.127069][ T395] alloc_buffer_head+0x26/0x110 [ 180.131891][ T395] alloc_page_buffers+0x138/0x4b0 [ 180.136890][ T395] grow_dev_page+0x276/0x4c0 [ 180.141452][ T395] __getblk_gfp+0x18d/0x2a0 [ 180.145928][ T395] fat_alloc_new_dir+0x27a/0xd70 [ 180.150842][ T395] ? __fat_remove_entries+0x4f0/0x4f0 [ 180.156188][ T395] ? __kasan_check_write+0x14/0x20 [ 180.161273][ T395] ? __d_lookup_rcu+0xc0/0x660 [ 180.166009][ T395] ? may_create+0x635/0x8b0 [ 180.170487][ T395] vfat_mkdir+0x176/0x420 [ 180.174789][ T395] ? vfat_unlink+0x3a0/0x3a0 [ 180.179448][ T395] ? selinux_inode_mkdir+0x22/0x30 [ 180.184540][ T395] ? security_inode_mkdir+0xf1/0x130 [ 180.189805][ T395] vfs_mkdir+0x435/0x610 [ 180.194024][ T395] open_or_create_special_dir+0xbf/0x150 [ 180.199635][ T395] incfs_mount_fs+0x3e9/0x840 [ 180.204381][ T395] ? incfs_unlink+0x80/0x80 [ 180.208870][ T395] ? selinux_capable+0x39/0x50 [ 180.213611][ T395] legacy_get_tree+0xf0/0x190 [ 180.218268][ T395] ? incfs_unlink+0x80/0x80 [ 180.222750][ T395] vfs_get_tree+0x89/0x270 [ 180.227151][ T395] path_mount+0x1975/0x2ab0 [ 180.231639][ T395] ? mark_mounts_for_expiry+0x4b0/0x4b0 [ 180.237172][ T395] ? getname_flags+0x207/0x650 [ 180.241923][ T395] ? user_path_at_empty+0x40/0x50 [ 180.246933][ T395] __se_sys_mount+0x2f7/0x3b0 [ 180.251623][ T395] ? __x64_sys_mount+0xd0/0xd0 [ 180.256369][ T395] ? debug_smp_processor_id+0x1c/0x20 [ 180.261718][ T395] __x64_sys_mount+0xbf/0xd0 [ 180.266284][ T395] do_syscall_64+0x31/0x70 [ 180.270675][ T395] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 180.276539][ T395] RIP: 0033:0x7fe663391fd9 [ 180.280929][ T395] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 180.300618][ T395] RSP: 002b:00007ffd0df4bbf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 180.309005][ T395] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fe663391fd9 [ 180.316964][ T395] RDX: 0000000020000340 RSI: 0000000020000000 RDI: 00000000200002c0 [ 180.324913][ T395] RBP: 00007ffd0df4bc20 R08: 0000000000000000 R09: 00007ffd0df4bc30 [ 180.332857][ T395] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000003 [ 180.340801][ T395] R13: 00007ffd0df4bc60 R14: 00007ffd0df4bc40 R15: 000000000000000e [ 180.349166][ T395] incfs: ino conflict with backing FS 1 [ 180.356908][ T23] audit: type=1400 audit(1635215620.800:83): avc: denied { remove_name } for pid=142 comm="syslogd" name="messages" dev="tmpfs" ino=2 scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1 [ 180.379525][ T23] audit: type=1400 audit(1635215620.800:84): avc: denied { rename } for pid=142 comm="syslogd" name="messages" dev="tmpfs" ino=2 scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:tmpfs_t tclass=file permissive=1 executing program [ 180.506806][ T397] FAULT_INJECTION: forcing a failure. [ 180.506806][ T397] name failslab, interval 1, probability 0, space 0, times 0 [ 180.519544][ T397] CPU: 0 PID: 397 Comm: syz-executor003 Tainted: G W 5.10.75-syzkaller-01082-g234d53d2bb60 #0 [ 180.531079][ T397] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 180.541122][ T397] Call Trace: [ 180.544414][ T397] dump_stack_lvl+0x1e2/0x24b [ 180.549070][ T397] ? show_regs_print_info+0x18/0x18 [ 180.554247][ T397] dump_stack+0x15/0x1d [ 180.558384][ T397] should_fail+0x3c0/0x510 [ 180.562781][ T397] ? vfat_add_entry+0x357/0x3850 [ 180.567692][ T397] __should_failslab+0x9f/0xe0 [ 180.572433][ T397] should_failslab+0x9/0x20 [ 180.576909][ T397] kmem_cache_alloc+0x43/0x380 [ 180.581645][ T397] vfat_add_entry+0x357/0x3850 [ 180.586382][ T397] ? __mod_memcg_state+0xb4/0x230 [ 180.591380][ T397] ? __kasan_check_write+0x14/0x20 [ 180.596464][ T397] ? percpu_counter_add_batch+0x14b/0x170 [ 180.602158][ T397] ? vfat_rename+0xff0/0xff0 [ 180.606721][ T397] ? __kasan_check_write+0x14/0x20 [ 180.611924][ T397] ? __brelse+0x5a/0xa0 [ 180.616051][ T397] ? fat_zeroed_cluster+0x82a/0x8a0 [ 180.621222][ T397] ? mark_buffer_dirty+0x1e3/0x310 [ 180.626321][ T397] ? _raw_spin_unlock+0x4d/0x70 [ 180.631145][ T397] ? fat_alloc_new_dir+0x857/0xd70 [ 180.636231][ T397] ? __fat_remove_entries+0x4f0/0x4f0 [ 180.641627][ T397] ? 0xffffffff81000000 [ 180.645866][ T397] ? __d_lookup_rcu+0xc0/0x660 [ 180.650603][ T397] ? may_create+0x635/0x8b0 [ 180.655082][ T397] vfat_mkdir+0x1a8/0x420 [ 180.659385][ T397] ? vfat_unlink+0x3a0/0x3a0 [ 180.663949][ T397] ? selinux_inode_mkdir+0x22/0x30 [ 180.669104][ T397] ? security_inode_mkdir+0xf1/0x130 [ 180.674364][ T397] vfs_mkdir+0x435/0x610 [ 180.678581][ T397] open_or_create_special_dir+0xbf/0x150 [ 180.684445][ T397] incfs_mount_fs+0x3e9/0x840 [ 180.689096][ T397] ? incfs_unlink+0x80/0x80 [ 180.693583][ T397] ? selinux_capable+0x39/0x50 [ 180.698317][ T397] legacy_get_tree+0xf0/0x190 [ 180.702969][ T397] ? incfs_unlink+0x80/0x80 [ 180.707445][ T397] vfs_get_tree+0x89/0x270 [ 180.711833][ T397] path_mount+0x1975/0x2ab0 [ 180.716314][ T397] ? mark_mounts_for_expiry+0x4b0/0x4b0 [ 180.721861][ T397] ? getname_flags+0x207/0x650 [ 180.726595][ T397] ? user_path_at_empty+0x40/0x50 [ 180.731587][ T397] __se_sys_mount+0x2f7/0x3b0 [ 180.736237][ T397] ? __x64_sys_mount+0xd0/0xd0 [ 180.740984][ T397] ? debug_smp_processor_id+0x1c/0x20 [ 180.746402][ T397] __x64_sys_mount+0xbf/0xd0 [ 180.750965][ T397] do_syscall_64+0x31/0x70 [ 180.755355][ T397] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 180.761216][ T397] RIP: 0033:0x7fe663391fd9 [ 180.765609][ T397] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 180.785187][ T397] RSP: 002b:00007ffd0df4bbf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 180.793572][ T397] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fe663391fd9 [ 180.801517][ T397] RDX: 0000000020000340 RSI: 0000000020000000 RDI: 00000000200002c0 [ 180.809461][ T397] RBP: 00007ffd0df4bc20 R08: 0000000000000000 R09: 00007ffd0df4bc30 [ 180.817404][ T397] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000003 [ 180.825351][ T397] R13: 00007ffd0df4bc60 R14: 00007ffd0df4bc40 R15: 000000000000000f [ 180.833416][ T397] incfs: Can't find or create .index dir in ./file0 [ 180.841288][ T365] BUG: Dentry ffff888119dd6ee0{i=0,n=.index} still in use (1) [unmount of vfat loop0] [ 180.851028][ T365] ------------[ cut here ]------------ [ 180.856573][ T365] WARNING: CPU: 1 PID: 365 at fs/dcache.c:1616 umount_check+0x18d/0x1d0 [ 180.864889][ T365] Modules linked in: [ 180.868871][ T365] CPU: 1 PID: 365 Comm: syz-executor003 Tainted: G W 5.10.75-syzkaller-01082-g234d53d2bb60 #0 [ 180.880490][ T365] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 180.890650][ T365] RIP: 0010:umount_check+0x18d/0x1d0 [ 180.895977][ T365] Code: 8b 0b 49 81 c6 f8 03 00 00 48 c7 c7 40 43 2e 85 4c 89 e6 48 8b 55 d0 4c 89 e1 45 89 f8 31 c0 41 56 e8 ae d9 9e ff 48 83 c4 08 <0f> 0b e9 f1 fe ff ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c c9 fe ff [ 180.915643][ T365] RSP: 0018:ffffc90000bf7c78 EFLAGS: 00010286 [ 180.921753][ T365] RAX: 0000000000000054 RBX: ffffffff866b3380 RCX: 40c1636306cab800 [ 180.929784][ T365] RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000000 [ 180.937808][ T365] RBP: ffffc90000bf7ca8 R08: ffffffff81545368 R09: ffffed103ee295d8 [ 180.945881][ T365] R10: ffffed103ee295d8 R11: 0000000000000000 R12: ffff888119dd6ee0 [ 180.953854][ T365] R13: dffffc0000000000 R14: ffff88810a7a83f8 R15: 0000000000000001 [ 180.961881][ T365] FS: 00005555574af300(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 180.970958][ T365] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 180.977641][ T365] CR2: 00005555574b8628 CR3: 000000011c8fe000 CR4: 00000000003506a0 [ 180.985625][ T365] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 180.993744][ T365] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 181.001842][ T365] Call Trace: [ 181.005126][ T365] d_walk+0x309/0x540 [ 181.009123][ T365] ? __d_free+0x30/0x30 [ 181.013276][ T365] shrink_dcache_for_umount+0x8e/0x1b0 [ 181.018888][ T365] generic_shutdown_super+0x66/0x2c0 [ 181.024179][ T365] kill_block_super+0x80/0xe0 [ 181.028882][ T365] deactivate_locked_super+0xb0/0x100 [ 181.034508][ T365] deactivate_super+0xa5/0xd0 [ 181.039198][ T365] cleanup_mnt+0x45f/0x510 [ 181.043600][ T365] __cleanup_mnt+0x19/0x20 [ 181.048052][ T365] task_work_run+0x147/0x1b0 [ 181.052645][ T365] exit_to_user_mode_prepare+0xc3/0xe0 [ 181.058117][ T365] syscall_exit_to_user_mode+0x24/0x40 [ 181.063572][ T365] do_syscall_64+0x3d/0x70 [ 181.068001][ T365] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 181.073894][ T365] RIP: 0033:0x7fe663393377 [ 181.078315][ T365] Code: 07 00 48 83 c4 08 5b 5d c3 66 2e 0f 1f 84 00 00 00 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 a6 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 181.097942][ T365] RSP: 002b:00007ffd0df4ab08 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6 [ 181.106378][ T365] RAX: 0000000000000000 RBX: 000000000002c107 RCX: 00007fe663393377 [ 181.114374][ T365] RDX: 00007ffd0df4abca RSI: 0000000000000002 RDI: 00007ffd0df4abc0 [ 181.122383][ T365] RBP: 00007ffd0df4abc0 R08: 00000000ffffffff R09: 00007ffd0df4a9a0 [ 181.130378][ T365] R10: 00005555574b0633 R11: 0000000000000202 R12: 00007ffd0df4bc40 [ 181.138387][ T365] R13: 00005555574b05f0 R14: 00007ffd0df4ab30 R15: 0000000000000010 [ 181.146378][ T365] ---[ end trace e3e057aa0f2d9c39 ]--- [ 181.152169][ T365] VFS: Busy inodes after unmount of loop0. Self-destruct in 5 seconds. Have a nice day... executing program [ 181.268450][ T399] FAULT_INJECTION: forcing a failure. [ 181.268450][ T399] name failslab, interval 1, probability 0, space 0, times 0 [ 181.281117][ T399] CPU: 1 PID: 399 Comm: syz-executor003 Tainted: G W 5.10.75-syzkaller-01082-g234d53d2bb60 #0 [ 181.292633][ T399] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 181.302662][ T399] Call Trace: [ 181.305933][ T399] dump_stack_lvl+0x1e2/0x24b [ 181.310669][ T399] ? show_regs_print_info+0x18/0x18 [ 181.316101][ T399] dump_stack+0x15/0x1d [ 181.320226][ T399] should_fail+0x3c0/0x510 [ 181.324614][ T399] ? vfat_add_entry+0x206/0x3850 [ 181.329522][ T399] __should_failslab+0x9f/0xe0 [ 181.334259][ T399] should_failslab+0x9/0x20 [ 181.338731][ T399] kmem_cache_alloc_trace+0x42/0x3a0 [ 181.344002][ T399] ? __kasan_check_read+0x11/0x20 [ 181.348997][ T399] ? __page_pinner_migration_failed+0xdd/0x250 [ 181.355120][ T399] vfat_add_entry+0x206/0x3850 [ 181.359852][ T399] ? __mod_memcg_state+0xb4/0x230 [ 181.364848][ T399] ? __kasan_check_write+0x14/0x20 [ 181.369943][ T399] ? percpu_counter_add_batch+0x14b/0x170 [ 181.375656][ T399] ? __rcu_read_lock+0x50/0x50 [ 181.380414][ T399] ? __add_wb_stat+0x5f/0x90 [ 181.384992][ T399] ? vfat_rename+0xff0/0xff0 [ 181.389680][ T399] ? __kasan_check_write+0x14/0x20 [ 181.394775][ T399] ? __brelse+0x5a/0xa0 [ 181.398915][ T399] ? fat_zeroed_cluster+0x82a/0x8a0 [ 181.404088][ T399] ? mark_buffer_dirty+0x1e3/0x310 [ 181.409179][ T399] ? _raw_spin_unlock+0x4d/0x70 [ 181.414004][ T399] ? fat_alloc_new_dir+0x857/0xd70 [ 181.419106][ T399] ? __fat_remove_entries+0x4f0/0x4f0 [ 181.424457][ T399] ? __kasan_check_write+0x14/0x20 [ 181.429553][ T399] ? __d_lookup_done+0x104/0x2a0 [ 181.434483][ T399] ? may_create+0x635/0x8b0 [ 181.438968][ T399] vfat_mkdir+0x1a8/0x420 [ 181.443268][ T399] ? vfat_unlink+0x3a0/0x3a0 [ 181.447833][ T399] ? selinux_inode_mkdir+0x22/0x30 [ 181.453021][ T399] ? security_inode_mkdir+0xf1/0x130 [ 181.458453][ T399] vfs_mkdir+0x435/0x610 [ 181.462671][ T399] open_or_create_special_dir+0xbf/0x150 [ 181.468293][ T399] incfs_mount_fs+0x3e9/0x840 [ 181.472945][ T399] ? incfs_unlink+0x80/0x80 [ 181.477423][ T399] ? selinux_capable+0x39/0x50 [ 181.482165][ T399] legacy_get_tree+0xf0/0x190 [ 181.486816][ T399] ? incfs_unlink+0x80/0x80 [ 181.491294][ T399] vfs_get_tree+0x89/0x270 [ 181.495684][ T399] path_mount+0x1975/0x2ab0 [ 181.500260][ T399] ? mark_mounts_for_expiry+0x4b0/0x4b0 [ 181.505783][ T399] ? getname_flags+0x207/0x650 [ 181.510542][ T399] ? user_path_at_empty+0x40/0x50 [ 181.515652][ T399] __se_sys_mount+0x2f7/0x3b0 [ 181.520313][ T399] ? __x64_sys_mount+0xd0/0xd0 [ 181.525155][ T399] ? debug_smp_processor_id+0x1c/0x20 [ 181.530519][ T399] __x64_sys_mount+0xbf/0xd0 [ 181.535093][ T399] do_syscall_64+0x31/0x70 [ 181.539491][ T399] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 181.545387][ T399] RIP: 0033:0x7fe663391fd9 [ 181.550344][ T399] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 181.570176][ T399] RSP: 002b:00007ffd0df4bbf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 181.578748][ T399] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fe663391fd9 [ 181.586695][ T399] RDX: 0000000020000340 RSI: 0000000020000000 RDI: 00000000200002c0 [ 181.594641][ T399] RBP: 00007ffd0df4bc20 R08: 0000000000000000 R09: 00007ffd0df4bc30 [ 181.602602][ T399] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000003 [ 181.610550][ T399] R13: 00007ffd0df4bc60 R14: 00007ffd0df4bc40 R15: 0000000000000010 [ 181.618708][ T399] incfs: Can't find or create .index dir in ./file0 [ 181.626820][ T365] BUG: Dentry ffff888119dd6110{i=0,n=.index} still in use (1) [unmount of vfat loop0] [ 181.636594][ T365] ------------[ cut here ]------------ [ 181.642036][ T365] WARNING: CPU: 0 PID: 365 at fs/dcache.c:1616 umount_check+0x18d/0x1d0 [ 181.650354][ T365] Modules linked in: [ 181.654272][ T365] CPU: 0 PID: 365 Comm: syz-executor003 Tainted: G W 5.10.75-syzkaller-01082-g234d53d2bb60 #0 [ 181.665855][ T365] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 181.675969][ T365] RIP: 0010:umount_check+0x18d/0x1d0 [ 181.681228][ T365] Code: 8b 0b 49 81 c6 f8 03 00 00 48 c7 c7 40 43 2e 85 4c 89 e6 48 8b 55 d0 4c 89 e1 45 89 f8 31 c0 41 56 e8 ae d9 9e ff 48 83 c4 08 <0f> 0b e9 f1 fe ff ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c c9 fe ff [ 181.700901][ T365] RSP: 0018:ffffc90000bf7c78 EFLAGS: 00010286 [ 181.707006][ T365] RAX: 0000000000000054 RBX: ffffffff866b3380 RCX: 40c1636306cab800 [ 181.714961][ T365] RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000000 [ 181.722939][ T365] RBP: ffffc90000bf7ca8 R08: ffffffff81545368 R09: ffffed103ee095d8 [ 181.730905][ T365] R10: ffffed103ee095d8 R11: 0000000000000000 R12: ffff888119dd6110 [ 181.738875][ T365] R13: dffffc0000000000 R14: ffff88810a7ae3f8 R15: 0000000000000001 [ 181.746931][ T365] FS: 00005555574af300(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 181.755947][ T365] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 181.762528][ T365] CR2: 00005555574b8628 CR3: 000000011c8fe000 CR4: 00000000003506b0 [ 181.770527][ T365] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 181.778518][ T365] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 181.786489][ T365] Call Trace: [ 181.789766][ T365] d_walk+0x309/0x540 [ 181.793724][ T365] ? __d_free+0x30/0x30 [ 181.797888][ T365] shrink_dcache_for_umount+0x8e/0x1b0 [ 181.803332][ T365] generic_shutdown_super+0x66/0x2c0 [ 181.808645][ T365] kill_block_super+0x80/0xe0 [ 181.813308][ T365] deactivate_locked_super+0xb0/0x100 [ 181.818688][ T365] deactivate_super+0xa5/0xd0 [ 181.823570][ T365] cleanup_mnt+0x45f/0x510 [ 181.827990][ T365] __cleanup_mnt+0x19/0x20 [ 181.832396][ T365] task_work_run+0x147/0x1b0 [ 181.836987][ T365] exit_to_user_mode_prepare+0xc3/0xe0 [ 181.842437][ T365] syscall_exit_to_user_mode+0x24/0x40 [ 181.848071][ T365] do_syscall_64+0x3d/0x70 [ 181.852473][ T365] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 181.858381][ T365] RIP: 0033:0x7fe663393377 [ 181.862873][ T365] Code: 07 00 48 83 c4 08 5b 5d c3 66 2e 0f 1f 84 00 00 00 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 a6 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 181.882532][ T365] RSP: 002b:00007ffd0df4ab08 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6 [ 181.890999][ T365] RAX: 0000000000000000 RBX: 000000000002c408 RCX: 00007fe663393377 [ 181.898977][ T365] RDX: 00007ffd0df4abca RSI: 0000000000000002 RDI: 00007ffd0df4abc0 [ 181.906960][ T365] RBP: 00007ffd0df4abc0 R08: 00000000ffffffff R09: 00007ffd0df4a9a0 [ 181.914924][ T365] R10: 00005555574b0633 R11: 0000000000000202 R12: 00007ffd0df4bc40 [ 181.922897][ T365] R13: 00005555574b05f0 R14: 00007ffd0df4ab30 R15: 0000000000000011 [ 181.931103][ T365] ---[ end trace e3e057aa0f2d9c3a ]--- [ 181.937007][ T365] VFS: Busy inodes after unmount of loop0. Self-destruct in 5 seconds. Have a nice day... executing program [ 182.060081][ T401] FAULT_INJECTION: forcing a failure. [ 182.060081][ T401] name failslab, interval 1, probability 0, space 0, times 0 [ 182.072710][ T401] CPU: 0 PID: 401 Comm: syz-executor003 Tainted: G W 5.10.75-syzkaller-01082-g234d53d2bb60 #0 [ 182.084236][ T401] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 182.094293][ T401] Call Trace: [ 182.097566][ T401] dump_stack_lvl+0x1e2/0x24b [ 182.102479][ T401] ? show_regs_print_info+0x18/0x18 [ 182.107685][ T401] ? finish_task_switch+0x1b9/0x5f0 [ 182.112880][ T401] dump_stack+0x15/0x1d [ 182.117025][ T401] should_fail+0x3c0/0x510 [ 182.121416][ T401] ? vfat_add_entry+0x206/0x3850 [ 182.126347][ T401] __should_failslab+0x9f/0xe0 [ 182.131088][ T401] should_failslab+0x9/0x20 [ 182.135574][ T401] kmem_cache_alloc_trace+0x42/0x3a0 [ 182.140849][ T401] ? prepare_to_wait_exclusive+0x23a/0x2a0 [ 182.146663][ T401] vfat_add_entry+0x206/0x3850 [ 182.151416][ T401] ? __mod_memcg_state+0xb4/0x230 [ 182.156435][ T401] ? __kasan_check_write+0x14/0x20 [ 182.161577][ T401] ? percpu_counter_add_batch+0x14b/0x170 [ 182.167293][ T401] ? __rcu_read_lock+0x50/0x50 [ 182.172033][ T401] ? __add_wb_stat+0x5f/0x90 [ 182.176597][ T401] ? vfat_rename+0xff0/0xff0 [ 182.181161][ T401] ? __kasan_check_write+0x14/0x20 [ 182.186273][ T401] ? __brelse+0x5a/0xa0 [ 182.190403][ T401] ? fat_zeroed_cluster+0x82a/0x8a0 [ 182.195577][ T401] ? mark_buffer_dirty+0x1e3/0x310 [ 182.200753][ T401] ? _raw_spin_unlock+0x4d/0x70 [ 182.205583][ T401] ? fat_alloc_new_dir+0x857/0xd70 [ 182.210667][ T401] ? __fat_remove_entries+0x4f0/0x4f0 [ 182.216014][ T401] ? __kasan_check_write+0x14/0x20 [ 182.221115][ T401] ? __d_lookup_done+0x105/0x2a0 [ 182.226024][ T401] ? may_create+0x635/0x8b0 [ 182.230512][ T401] vfat_mkdir+0x1a8/0x420 [ 182.234847][ T401] ? vfat_unlink+0x3a0/0x3a0 [ 182.239431][ T401] ? selinux_inode_mkdir+0x22/0x30 [ 182.244516][ T401] ? security_inode_mkdir+0xf1/0x130 [ 182.249776][ T401] vfs_mkdir+0x435/0x610 [ 182.253992][ T401] open_or_create_special_dir+0xbf/0x150 [ 182.259595][ T401] incfs_mount_fs+0x3e9/0x840 [ 182.264247][ T401] ? incfs_unlink+0x80/0x80 [ 182.268745][ T401] ? selinux_capable+0x39/0x50 [ 182.273513][ T401] legacy_get_tree+0xf0/0x190 [ 182.278165][ T401] ? incfs_unlink+0x80/0x80 [ 182.282643][ T401] vfs_get_tree+0x89/0x270 [ 182.287036][ T401] path_mount+0x1975/0x2ab0 [ 182.291524][ T401] ? mark_mounts_for_expiry+0x4b0/0x4b0 [ 182.297043][ T401] ? getname_flags+0x207/0x650 [ 182.301780][ T401] ? user_path_at_empty+0x40/0x50 [ 182.306778][ T401] __se_sys_mount+0x2f7/0x3b0 [ 182.311426][ T401] ? __x64_sys_mount+0xd0/0xd0 [ 182.316348][ T401] ? debug_smp_processor_id+0x1c/0x20 [ 182.321717][ T401] __x64_sys_mount+0xbf/0xd0 [ 182.326285][ T401] do_syscall_64+0x31/0x70 [ 182.330673][ T401] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 182.336553][ T401] RIP: 0033:0x7fe663391fd9 [ 182.340942][ T401] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 182.360536][ T401] RSP: 002b:00007ffd0df4bbf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 182.368942][ T401] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fe663391fd9 [ 182.376892][ T401] RDX: 0000000020000340 RSI: 0000000020000000 RDI: 00000000200002c0 [ 182.384838][ T401] RBP: 00007ffd0df4bc20 R08: 0000000000000000 R09: 00007ffd0df4bc30 [ 182.392903][ T401] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000003 [ 182.400865][ T401] R13: 00007ffd0df4bc60 R14: 00007ffd0df4bc40 R15: 0000000000000011 [ 182.408896][ T401] incfs: Can't find or create .index dir in ./file0 [ 182.416500][ T365] BUG: Dentry ffff888119e04dd0{i=0,n=.index} still in use (1) [unmount of vfat loop0] [ 182.426213][ T365] ------------[ cut here ]------------ [ 182.431659][ T365] WARNING: CPU: 0 PID: 365 at fs/dcache.c:1616 umount_check+0x18d/0x1d0 [ 182.439980][ T365] Modules linked in: [ 182.443866][ T365] CPU: 0 PID: 365 Comm: syz-executor003 Tainted: G W 5.10.75-syzkaller-01082-g234d53d2bb60 #0 [ 182.455843][ T365] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 182.465907][ T365] RIP: 0010:umount_check+0x18d/0x1d0 [ 182.471162][ T365] Code: 8b 0b 49 81 c6 f8 03 00 00 48 c7 c7 40 43 2e 85 4c 89 e6 48 8b 55 d0 4c 89 e1 45 89 f8 31 c0 41 56 e8 ae d9 9e ff 48 83 c4 08 <0f> 0b e9 f1 fe ff ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c c9 fe ff [ 182.490786][ T365] RSP: 0018:ffffc90000bf7c78 EFLAGS: 00010286 [ 182.496881][ T365] RAX: 0000000000000054 RBX: ffffffff866b3380 RCX: 40c1636306cab800 [ 182.504834][ T365] RDX: 0000000000000000 RSI: 0000000080000002 RDI: 0000000000000000 [ 182.513062][ T365] RBP: ffffc90000bf7ca8 R08: ffffffff81545368 R09: ffffed103ee095d8 [ 182.521135][ T365] R10: ffffed103ee095d8 R11: 0000000000000000 R12: ffff888119e04dd0 [ 182.529136][ T365] R13: dffffc0000000000 R14: ffff88810bac63f8 R15: 0000000000000001 [ 182.537123][ T365] FS: 00005555574af300(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 182.546170][ T365] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 182.552757][ T365] CR2: 00005555574b8628 CR3: 000000011c8fe000 CR4: 00000000003506b0 [ 182.560746][ T365] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 182.568741][ T365] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 182.576710][ T365] Call Trace: [ 182.579985][ T365] d_walk+0x309/0x540 [ 182.583939][ T365] ? __d_free+0x30/0x30 [ 182.588142][ T365] shrink_dcache_for_umount+0x8e/0x1b0 [ 182.593613][ T365] generic_shutdown_super+0x66/0x2c0 [ 182.598912][ T365] kill_block_super+0x80/0xe0 [ 182.603573][ T365] deactivate_locked_super+0xb0/0x100 [ 182.609011][ T365] deactivate_super+0xa5/0xd0 [ 182.613771][ T365] cleanup_mnt+0x45f/0x510 [ 182.618200][ T365] __cleanup_mnt+0x19/0x20 [ 182.622611][ T365] task_work_run+0x147/0x1b0 [ 182.627204][ T365] exit_to_user_mode_prepare+0xc3/0xe0 [ 182.632767][ T365] syscall_exit_to_user_mode+0x24/0x40 [ 182.638448][ T365] do_syscall_64+0x3d/0x70 [ 182.642849][ T365] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 182.648759][ T365] RIP: 0033:0x7fe663393377 [ 182.653156][ T365] Code: 07 00 48 83 c4 08 5b 5d c3 66 2e 0f 1f 84 00 00 00 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 a6 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 182.672763][ T365] RSP: 002b:00007ffd0df4ab08 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6 [ 182.681176][ T365] RAX: 0000000000000000 RBX: 000000000002c720 RCX: 00007fe663393377 [ 182.689145][ T365] RDX: 00007ffd0df4abca RSI: 0000000000000002 RDI: 00007ffd0df4abc0 [ 182.697115][ T365] RBP: 00007ffd0df4abc0 R08: 00000000ffffffff R09: 00007ffd0df4a9a0 [ 182.705070][ T365] R10: 00005555574b0633 R11: 0000000000000202 R12: 00007ffd0df4bc40 [ 182.713127][ T365] R13: 00005555574b05f0 R14: 00007ffd0df4ab30 R15: 0000000000000012 [ 182.721108][ T365] ---[ end trace e3e057aa0f2d9c3b ]--- [ 182.726952][ T365] VFS: Busy inodes after unmount of loop0. Self-destruct in 5 seconds. Have a nice day... executing program [ 182.821341][ T403] FAULT_INJECTION: forcing a failure. [ 182.821341][ T403] name failslab, interval 1, probability 0, space 0, times 0 [ 182.834022][ T403] CPU: 0 PID: 403 Comm: syz-executor003 Tainted: G W 5.10.75-syzkaller-01082-g234d53d2bb60 #0 [ 182.845552][ T403] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 182.855586][ T403] Call Trace: [ 182.858852][ T403] dump_stack_lvl+0x1e2/0x24b [ 182.863499][ T403] ? show_regs_print_info+0x18/0x18 [ 182.868667][ T403] ? is_module_text_address+0xe1/0x140 [ 182.874094][ T403] ? stack_trace_save+0x1e0/0x1e0 [ 182.879088][ T403] dump_stack+0x15/0x1d [ 182.883213][ T403] should_fail+0x3c0/0x510 [ 182.887603][ T403] ? mempool_alloc_slab+0x1d/0x30 [ 182.892702][ T403] __should_failslab+0x9f/0xe0 [ 182.897446][ T403] should_failslab+0x9/0x20 [ 182.901931][ T403] kmem_cache_alloc+0x43/0x380 [ 182.906677][ T403] ? mempool_free+0x310/0x310 [ 182.911328][ T403] mempool_alloc_slab+0x1d/0x30 [ 182.916156][ T403] mempool_alloc+0x113/0x650 [ 182.920720][ T403] ? __kasan_check_read+0x11/0x20 [ 182.925716][ T403] ? __page_pinner_migration_failed+0xdd/0x250 [ 182.931837][ T403] ? mempool_resize+0x8e0/0x8e0 [ 182.936669][ T403] ? _raw_spin_trylock_bh+0x1a0/0x1a0 [ 182.942015][ T403] ? pagecache_get_page+0x907/0x9c0 [ 182.947187][ T403] bio_alloc_bioset+0x1db/0x650 [ 182.952019][ T403] ? __kasan_check_write+0x14/0x20 [ 182.957139][ T403] ? __find_get_block+0xa6b/0xbd0 [ 182.962138][ T403] ? bio_chain_endio+0x120/0x120 [ 182.967073][ T403] ? write_boundary_block+0x150/0x150 [ 182.972420][ T403] ? __rcu_read_lock+0x50/0x50 [ 182.977179][ T403] submit_bh_wbc+0x1cb/0x740 [ 182.981749][ T403] __bread_gfp+0x187/0x320 [ 182.986141][ T403] fat12_ent_bread+0x17f/0x510 [ 182.990896][ T403] ? fat12_ent_blocknr+0xb4/0x1e0 [ 182.995893][ T403] ? fat12_ent_set_ptr+0x270/0x270 [ 183.000986][ T403] fat_alloc_clusters+0x887/0x1660 [ 183.006071][ T403] ? __rcu_read_lock+0x50/0x50 [ 183.010813][ T403] ? fat_mirror_bhs+0x480/0x480 [ 183.015636][ T403] ? memcpy+0x56/0x70 [ 183.019598][ T403] fat_alloc_new_dir+0x19e/0xd70 [ 183.024508][ T403] ? __fat_remove_entries+0x4f0/0x4f0 [ 183.029854][ T403] ? __kasan_check_write+0x14/0x20 [ 183.034945][ T403] ? __d_lookup_rcu+0xc0/0x660 [ 183.039684][ T403] ? may_create+0x635/0x8b0 [ 183.044164][ T403] vfat_mkdir+0x176/0x420 [ 183.048465][ T403] ? vfat_unlink+0x3a0/0x3a0 [ 183.053031][ T403] ? selinux_inode_mkdir+0x22/0x30 [ 183.058116][ T403] ? security_inode_mkdir+0xf1/0x130 [ 183.063383][ T403] vfs_mkdir+0x435/0x610 [ 183.067602][ T403] open_or_create_special_dir+0xbf/0x150 [ 183.073206][ T403] incfs_mount_fs+0x3e9/0x840 [ 183.077857][ T403] ? incfs_unlink+0x80/0x80 [ 183.082340][ T403] ? selinux_capable+0x39/0x50 [ 183.087075][ T403] legacy_get_tree+0xf0/0x190 [ 183.091723][ T403] ? incfs_unlink+0x80/0x80 [ 183.096201][ T403] vfs_get_tree+0x89/0x270 [ 183.100591][ T403] path_mount+0x1975/0x2ab0 [ 183.105070][ T403] ? mark_mounts_for_expiry+0x4b0/0x4b0 [ 183.110589][ T403] ? getname_flags+0x207/0x650 [ 183.115328][ T403] ? user_path_at_empty+0x40/0x50 [ 183.120330][ T403] __se_sys_mount+0x2f7/0x3b0 [ 183.124981][ T403] ? __x64_sys_mount+0xd0/0xd0 [ 183.129718][ T403] ? debug_smp_processor_id+0x1c/0x20 [ 183.135064][ T403] __x64_sys_mount+0xbf/0xd0 [ 183.139633][ T403] do_syscall_64+0x31/0x70 [ 183.144025][ T403] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 183.149900][ T403] RIP: 0033:0x7fe663391fd9 [ 183.154298][ T403] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 183.173875][ T403] RSP: 002b:00007ffd0df4bbf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 183.182284][ T403] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fe663391fd9 [ 183.190228][ T403] RDX: 0000000020000340 RSI: 0000000020000000 RDI: 00000000200002c0 [ 183.198176][ T403] RBP: 00007ffd0df4bc20 R08: 0000000000000000 R09: 00007ffd0df4bc30 [ 183.206126][ T403] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000003 [ 183.214072][ T403] R13: 00007ffd0df4bc60 R14: 00007ffd0df4bc40 R15: 0000000000000012 [ 183.222529][ T403] incfs: ino conflict with backing FS 1 executing program [ 183.300286][ T405] FAULT_INJECTION: forcing a failure. [ 183.300286][ T405] name failslab, interval 1, probability 0, space 0, times 0 [ 183.313018][ T405] CPU: 1 PID: 405 Comm: syz-executor003 Tainted: G W 5.10.75-syzkaller-01082-g234d53d2bb60 #0 [ 183.324525][ T405] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 183.334555][ T405] Call Trace: [ 183.337820][ T405] dump_stack_lvl+0x1e2/0x24b [ 183.342487][ T405] ? show_regs_print_info+0x18/0x18 [ 183.347667][ T405] dump_stack+0x15/0x1d [ 183.351795][ T405] should_fail+0x3c0/0x510 [ 183.356202][ T405] ? vfat_add_entry+0x206/0x3850 [ 183.361130][ T405] __should_failslab+0x9f/0xe0 [ 183.365897][ T405] should_failslab+0x9/0x20 [ 183.370384][ T405] kmem_cache_alloc_trace+0x42/0x3a0 [ 183.375707][ T405] ? __kasan_check_read+0x11/0x20 [ 183.381253][ T405] ? __page_pinner_migration_failed+0xdd/0x250 [ 183.387385][ T405] vfat_add_entry+0x206/0x3850 [ 183.392129][ T405] ? __mod_memcg_state+0xb4/0x230 [ 183.397126][ T405] ? __kasan_check_write+0x14/0x20 [ 183.402207][ T405] ? percpu_counter_add_batch+0x14b/0x170 [ 183.407940][ T405] ? __rcu_read_lock+0x50/0x50 [ 183.412678][ T405] ? __add_wb_stat+0x5f/0x90 [ 183.417243][ T405] ? vfat_rename+0xff0/0xff0 [ 183.421804][ T405] ? __kasan_check_write+0x14/0x20 [ 183.426884][ T405] ? __brelse+0x5a/0xa0 [ 183.431011][ T405] ? fat_zeroed_cluster+0x82a/0x8a0 [ 183.436347][ T405] ? mark_buffer_dirty+0x1e3/0x310 [ 183.441553][ T405] ? _raw_spin_unlock+0x4d/0x70 [ 183.446382][ T405] ? fat_alloc_new_dir+0x857/0xd70 [ 183.451474][ T405] ? __fat_remove_entries+0x4f0/0x4f0 [ 183.456830][ T405] ? __kasan_check_write+0x14/0x20 [ 183.462004][ T405] ? __d_lookup_done+0x105/0x2a0 [ 183.466917][ T405] ? may_create+0x635/0x8b0 [ 183.471394][ T405] vfat_mkdir+0x1a8/0x420 [ 183.475699][ T405] ? vfat_unlink+0x3a0/0x3a0 [ 183.480295][ T405] ? selinux_inode_mkdir+0x22/0x30 [ 183.485379][ T405] ? security_inode_mkdir+0xf1/0x130 [ 183.490694][ T405] vfs_mkdir+0x435/0x610 [ 183.494926][ T405] open_or_create_special_dir+0xbf/0x150 [ 183.500561][ T405] incfs_mount_fs+0x3e9/0x840 [ 183.505237][ T405] ? incfs_unlink+0x80/0x80 [ 183.509805][ T405] ? selinux_capable+0x39/0x50 [ 183.514564][ T405] legacy_get_tree+0xf0/0x190 [ 183.519313][ T405] ? incfs_unlink+0x80/0x80 [ 183.523801][ T405] vfs_get_tree+0x89/0x270 [ 183.528283][ T405] path_mount+0x1975/0x2ab0 [ 183.532766][ T405] ? mark_mounts_for_expiry+0x4b0/0x4b0 [ 183.538304][ T405] ? getname_flags+0x207/0x650 [ 183.543041][ T405] ? user_path_at_empty+0x40/0x50 [ 183.548048][ T405] __se_sys_mount+0x2f7/0x3b0 [ 183.552702][ T405] ? __x64_sys_mount+0xd0/0xd0 [ 183.557457][ T405] ? debug_smp_processor_id+0x1c/0x20 [ 183.562804][ T405] __x64_sys_mount+0xbf/0xd0 [ 183.567381][ T405] do_syscall_64+0x31/0x70 [ 183.571770][ T405] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 183.577632][ T405] RIP: 0033:0x7fe663391fd9 [ 183.582018][ T405] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 183.601593][ T405] RSP: 002b:00007ffd0df4bbf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 183.609976][ T405] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fe663391fd9 [ 183.617923][ T405] RDX: 0000000020000340 RSI: 0000000020000000 RDI: 00000000200002c0 [ 183.625865][ T405] RBP: 00007ffd0df4bc20 R08: 0000000000000000 R09: 00007ffd0df4bc30 [ 183.633810][ T405] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000003 [ 183.641750][ T405] R13: 00007ffd0df4bc60 R14: 00007ffd0df4bc40 R15: 0000000000000013 [ 183.649793][ T405] incfs: Can't find or create .index dir in ./file0 [ 183.657918][ T365] BUG: Dentry ffff88810b414110{i=0,n=.index} still in use (1) [unmount of vfat loop0] [ 183.667584][ T365] ------------[ cut here ]------------ [ 183.673021][ T365] WARNING: CPU: 0 PID: 365 at fs/dcache.c:1616 umount_check+0x18d/0x1d0 [ 183.681353][ T365] Modules linked in: [ 183.685235][ T365] CPU: 0 PID: 365 Comm: syz-executor003 Tainted: G W 5.10.75-syzkaller-01082-g234d53d2bb60 #0 [ 183.696823][ T365] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 183.706924][ T365] RIP: 0010:umount_check+0x18d/0x1d0 [ 183.712178][ T365] Code: 8b 0b 49 81 c6 f8 03 00 00 48 c7 c7 40 43 2e 85 4c 89 e6 48 8b 55 d0 4c 89 e1 45 89 f8 31 c0 41 56 e8 ae d9 9e ff 48 83 c4 08 <0f> 0b e9 f1 fe ff ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c c9 fe ff [ 183.731817][ T365] RSP: 0018:ffffc90000bf7c78 EFLAGS: 00010286 [ 183.737923][ T365] RAX: 0000000000000054 RBX: ffffffff866b3380 RCX: 40c1636306cab800 [ 183.745921][ T365] RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000000 [ 183.753893][ T365] RBP: ffffc90000bf7ca8 R08: ffffffff81545368 R09: ffffed103ee095d8 [ 183.761885][ T365] R10: ffffed103ee095d8 R11: 0000000000000000 R12: ffff88810b414110 [ 183.769858][ T365] R13: dffffc0000000000 R14: ffff88810a7a93f8 R15: 0000000000000001 [ 183.777839][ T365] FS: 00005555574af300(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 183.786772][ T365] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 183.793328][ T365] CR2: 00005555574b8628 CR3: 000000011c8fe000 CR4: 00000000003506b0 [ 183.801306][ T365] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 183.809387][ T365] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 183.817366][ T365] Call Trace: [ 183.820644][ T365] d_walk+0x309/0x540 [ 183.824596][ T365] ? __d_free+0x30/0x30 [ 183.828756][ T365] shrink_dcache_for_umount+0x8e/0x1b0 [ 183.834203][ T365] generic_shutdown_super+0x66/0x2c0 [ 183.839491][ T365] kill_block_super+0x80/0xe0 [ 183.844151][ T365] deactivate_locked_super+0xb0/0x100 [ 183.849526][ T365] deactivate_super+0xa5/0xd0 [ 183.854186][ T365] cleanup_mnt+0x45f/0x510 [ 183.858614][ T365] __cleanup_mnt+0x19/0x20 [ 183.863012][ T365] task_work_run+0x147/0x1b0 [ 183.867600][ T365] exit_to_user_mode_prepare+0xc3/0xe0 [ 183.873040][ T365] syscall_exit_to_user_mode+0x24/0x40 [ 183.878510][ T365] do_syscall_64+0x3d/0x70 [ 183.882911][ T365] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 183.888805][ T365] RIP: 0033:0x7fe663393377 [ 183.893201][ T365] Code: 07 00 48 83 c4 08 5b 5d c3 66 2e 0f 1f 84 00 00 00 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 a6 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 183.917519][ T365] RSP: 002b:00007ffd0df4ab08 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6 [ 183.925975][ T365] RAX: 0000000000000000 RBX: 000000000002cbf7 RCX: 00007fe663393377 [ 183.933922][ T365] RDX: 00007ffd0df4abca RSI: 0000000000000002 RDI: 00007ffd0df4abc0 [ 183.941900][ T365] RBP: 00007ffd0df4abc0 R08: 00000000ffffffff R09: 00007ffd0df4a9a0 executing program [ 183.949885][ T365] R10: 00005555574b0633 R11: 0000000000000202 R12: 00007ffd0df4bc40 [ 183.957857][ T365] R13: 00005555574b05f0 R14: 00007ffd0df4ab30 R15: 0000000000000014 [ 183.965828][ T365] ---[ end trace e3e057aa0f2d9c3c ]--- [ 183.971648][ T365] VFS: Busy inodes after unmount of loop0. Self-destruct in 5 seconds. Have a nice day... [ 184.025060][ T407] FAULT_INJECTION: forcing a failure. [ 184.025060][ T407] name failslab, interval 1, probability 0, space 0, times 0 [ 184.037682][ T407] CPU: 1 PID: 407 Comm: syz-executor003 Tainted: G W 5.10.75-syzkaller-01082-g234d53d2bb60 #0 [ 184.049194][ T407] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 184.060007][ T407] Call Trace: [ 184.063329][ T407] dump_stack_lvl+0x1e2/0x24b [ 184.067982][ T407] ? devkmsg_release+0x127/0x127 [ 184.072892][ T407] ? show_regs_print_info+0x18/0x18 [ 184.078073][ T407] ? is_bpf_text_address+0x1a2/0x1c0 [ 184.083339][ T407] ? is_module_text_address+0xe1/0x140 [ 184.088767][ T407] dump_stack+0x15/0x1d [ 184.092980][ T407] should_fail+0x3c0/0x510 [ 184.097367][ T407] ? __d_alloc+0x2d/0x6b0 [ 184.101664][ T407] __should_failslab+0x9f/0xe0 [ 184.106403][ T407] should_failslab+0x9/0x20 [ 184.110877][ T407] kmem_cache_alloc+0x43/0x380 [ 184.115613][ T407] ? avc_has_perm_noaudit+0x358/0x4d0 [ 184.121042][ T407] __d_alloc+0x2d/0x6b0 [ 184.125170][ T407] ? avc_has_perm_noaudit+0x2ed/0x4d0 [ 184.130514][ T407] d_alloc_parallel+0xf3/0x1360 [ 184.135335][ T407] ? avc_denied+0x1b0/0x1b0 [ 184.139811][ T407] ? ____kasan_kmalloc+0xf3/0x110 [ 184.144803][ T407] ? __kasan_kmalloc+0x9/0x10 [ 184.149451][ T407] ? selinux_inode_permission+0x44e/0x6a0 [ 184.155141][ T407] ? d_hash_and_lookup+0x200/0x200 [ 184.160221][ T407] ? selinux_inode_follow_link+0x3c0/0x3c0 [ 184.165996][ T407] ? __rcu_read_lock+0x50/0x50 [ 184.170734][ T407] __lookup_slow+0x14e/0x400 [ 184.175304][ T407] ? lookup_one_len+0x2c0/0x2c0 [ 184.180132][ T407] ? inode_permission+0xe0/0x520 [ 184.185043][ T407] lookup_one_len+0x17f/0x2c0 [ 184.189689][ T407] ? __kasan_check_write+0x14/0x20 [ 184.194785][ T407] ? lookup_one_len_common+0x450/0x450 [ 184.200226][ T407] incfs_lookup_dentry+0x5f/0xb0 [ 184.205138][ T407] open_or_create_special_dir+0x49/0x150 [ 184.210741][ T407] incfs_mount_fs+0x3e9/0x840 [ 184.215392][ T407] ? incfs_unlink+0x80/0x80 [ 184.219864][ T407] ? selinux_capable+0x39/0x50 [ 184.224596][ T407] legacy_get_tree+0xf0/0x190 [ 184.229244][ T407] ? incfs_unlink+0x80/0x80 [ 184.233728][ T407] vfs_get_tree+0x89/0x270 [ 184.238114][ T407] path_mount+0x1975/0x2ab0 [ 184.242593][ T407] ? mark_mounts_for_expiry+0x4b0/0x4b0 [ 184.248106][ T407] ? getname_flags+0x207/0x650 [ 184.252841][ T407] ? user_path_at_empty+0x40/0x50 [ 184.257837][ T407] __se_sys_mount+0x2f7/0x3b0 [ 184.262484][ T407] ? __x64_sys_mount+0xd0/0xd0 [ 184.267309][ T407] ? debug_smp_processor_id+0x1c/0x20 [ 184.272649][ T407] __x64_sys_mount+0xbf/0xd0 [ 184.277222][ T407] do_syscall_64+0x31/0x70 [ 184.281696][ T407] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 184.287556][ T407] RIP: 0033:0x7fe663391fd9 [ 184.291944][ T407] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 184.311517][ T407] RSP: 002b:00007ffd0df4bbf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 executing program