Warning: Permanently added '10.128.0.234' (ECDSA) to the list of known hosts.
executing program
[   63.993330][   T22] audit: type=1400 audit(1635026608.239:73): avc:  denied  { execmem } for  pid=298 comm="syz-executor542" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[   64.014186][   T22] audit: type=1400 audit(1635026608.249:74): avc:  denied  { read write } for  pid=298 comm="syz-executor542" name="loop0" dev="devtmpfs" ino=9369 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1
[   64.021855][  T299] FAULT_INJECTION: forcing a failure.
[   64.021855][  T299] name failslab, interval 1, probability 0, space 0, times 1
[   64.038898][   T22] audit: type=1400 audit(1635026608.249:75): avc:  denied  { open } for  pid=298 comm="syz-executor542" path="/dev/loop0" dev="devtmpfs" ino=9369 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1
[   64.061930][  T299] CPU: 0 PID: 299 Comm: syz-executor542 Not tainted 5.4.147-syzkaller-00036-geb4a5a5dbd5b #0
[   64.075500][   T22] audit: type=1400 audit(1635026608.249:76): avc:  denied  { ioctl } for  pid=298 comm="syz-executor542" path="/dev/loop0" dev="devtmpfs" ino=9369 ioctlcmd=0x4c01 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1
[   64.085250][  T299] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   64.085254][  T299] Call Trace:
[   64.085270][  T299]  dump_stack+0x18e/0x1de
[   64.085281][  T299]  should_fail+0x5d8/0x740
[   64.085291][  T299]  ? kvmalloc_node+0x7e/0xf0
[   64.085299][  T299]  should_failslab+0x5/0x20
[   64.085307][  T299]  __kmalloc+0x5f/0x2f0
[   64.085321][  T299]  ? __list_lru_init+0xa7/0x550
[   64.111486][   T22] audit: type=1400 audit(1635026608.269:77): avc:  denied  { mounton } for  pid=299 comm="syz-executor542" path="/root/syzkaller.ek5RoJ/0/file0" dev="sda1" ino=1139 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:user_home_t tclass=dir permissive=1
[   64.121000][  T299]  kvmalloc_node+0x7e/0xf0
[   64.121010][  T299]  __list_lru_init+0x1c6/0x550
[   64.121016][  T299]  ? prealloc_shrinker+0x1c0/0x210
[   64.121029][  T299]  alloc_super+0x640/0x750
[   64.124620][   T22] audit: type=1400 audit(1635026608.269:78): avc:  denied  { mount } for  pid=299 comm="syz-executor542" name="/" dev="loop0" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:dosfs_t tclass=filesystem permissive=1
[   64.128812][  T299]  sget+0x20e/0x4e0
[   64.128820][  T299]  ? free_anon_bdev+0x20/0x20
[   64.128828][  T299]  incfs_mount_fs+0x64/0x770
[   64.128842][  T299]  ? cred_has_capability+0x14f/0x340
[   64.133525][   T22] audit: type=1400 audit(1635026608.269:79): avc:  denied  { mounton } for  pid=299 comm="syz-executor542" path="/root/syzkaller.ek5RoJ/0/file0" dev="loop0" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:dosfs_t tclass=dir permissive=1
[   64.137797][  T299]  ? cred_has_capability+0x250/0x340
[   64.137807][  T299]  legacy_get_tree+0xde/0x170
[   64.137819][  T299]  ? incfs_unlink+0x80/0x80
[   64.272756][  T299]  vfs_get_tree+0x83/0x260
[   64.277142][  T299]  do_mount+0x17be/0x2390
[   64.281456][  T299]  ? copy_mount_options+0xc9/0x300
[   64.286541][  T299]  ksys_mount+0xc2/0xf0
[   64.290662][  T299]  __x64_sys_mount+0xb1/0xc0
[   64.295222][  T299]  do_syscall_64+0xcb/0x1e0
[   64.299698][  T299]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   64.305644][  T299] RIP: 0033:0x7fd69fe6dfd9
[   64.310024][  T299] 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
[   64.329678][  T299] RSP: 002b:00007ffdf88dfae8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[   64.338228][  T299] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fd69fe6dfd9
[   64.346169][  T299] RDX: 0000000020000340 RSI: 0000000020000000 RDI: 00000000200002c0
[   64.354207][  T299] RBP: 00007ffdf88dfb10 R08: 0000000000000000 R09: 00007ffdf88dfb20
[   64.362164][  T299] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000003
[   64.370104][  T299] R13: 00007ffdf88dfb50 R14: 00007ffdf88dfb30 R15: 0000000000000000
[   64.379417][   T22] audit: type=1400 audit(1635026608.629:80): avc:  denied  { unmount } for  pid=298 comm="syz-executor542" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:dosfs_t tclass=filesystem permissive=1
executing program
[   64.517317][  T302] FAULT_INJECTION: forcing a failure.
[   64.517317][  T302] name failslab, interval 1, probability 0, space 0, times 0
[   64.530081][  T302] CPU: 1 PID: 302 Comm: syz-executor542 Not tainted 5.4.147-syzkaller-00036-geb4a5a5dbd5b #0
[   64.540196][  T302] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   64.550227][  T302] Call Trace:
[   64.553494][  T302]  dump_stack+0x18e/0x1de
[   64.557794][  T302]  should_fail+0x5d8/0x740
[   64.562178][  T302]  ? vfat_add_entry+0x286/0x3160
[   64.567084][  T302]  should_failslab+0x5/0x20
[   64.571554][  T302]  kmem_cache_alloc+0x36/0x290
[   64.576286][  T302]  ? __brelse+0x54/0x90
[   64.580408][  T302]  vfat_add_entry+0x286/0x3160
[   64.585153][  T302]  ? mark_buffer_dirty_inode+0x22b/0x300
[   64.590751][  T302]  ? fat_alloc_new_dir+0x7b7/0xc90
[   64.595877][  T302]  ? avc_has_perm+0x7c/0x1c0
[   64.600447][  T302]  vfat_mkdir+0x11f/0x360
[   64.604762][  T302]  vfs_mkdir+0x416/0x5f0
[   64.609032][  T302]  open_or_create_special_dir+0xba/0x150
[   64.615703][  T302]  incfs_mount_fs+0x366/0x770
[   64.620356][  T302]  legacy_get_tree+0xde/0x170
[   64.625001][  T302]  ? incfs_unlink+0x80/0x80
[   64.629494][  T302]  vfs_get_tree+0x83/0x260
[   64.634013][  T302]  do_mount+0x17be/0x2390
[   64.638335][  T302]  ? copy_mount_options+0xc9/0x300
[   64.643511][  T302]  ksys_mount+0xc2/0xf0
[   64.647636][  T302]  __x64_sys_mount+0xb1/0xc0
[   64.652206][  T302]  do_syscall_64+0xcb/0x1e0
[   64.656678][  T302]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   64.662672][  T302] RIP: 0033:0x7fd69fe6dfd9
[   64.667063][  T302] 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
[   64.686640][  T302] RSP: 002b:00007ffdf88dfae8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[   64.695018][  T302] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fd69fe6dfd9
[   64.702956][  T302] RDX: 0000000020000340 RSI: 0000000020000000 RDI: 00000000200002c0
[   64.710893][  T302] RBP: 00007ffdf88dfb10 R08: 0000000000000000 R09: 00007ffdf88dfb20
[   64.718926][  T302] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000003
[   64.726961][  T302] R13: 00007ffdf88dfb50 R14: 00007ffdf88dfb30 R15: 0000000000000001
[   64.736025][  T302] incfs: Can't find or create .index dir in ./file0
[   64.744010][  T298] BUG: Dentry ffff8881e7278ee0{i=0,n=.index}  still in use (1) [unmount of vfat loop0]
[   64.753714][  T298] ------------[ cut here ]------------
[   64.759161][  T298] WARNING: CPU: 1 PID: 298 at fs/dcache.c:1597 umount_check+0x179/0x1c0
[   64.767656][  T298] Modules linked in:
[   64.771528][  T298] CPU: 1 PID: 298 Comm: syz-executor542 Not tainted 5.4.147-syzkaller-00036-geb4a5a5dbd5b #0
[   64.781643][  T298] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   64.791677][  T298] RIP: 0010:umount_check+0x179/0x1c0
[   64.796929][  T298] Code: ff 4c 8b 0b 48 81 c5 20 04 00 00 48 c7 c7 e0 14 c9 84 4c 89 fe 4c 89 f2 4c 89 f9 45 89 e8 31 c0 55 e8 b7 0e b3 ff 48 83 c4 08 <0f> 0b e9 fd fe ff ff 89 e9 80 e1 07 80 c1 03 38 c1 0f 8c d4 fe ff
[   64.816505][  T298] RSP: 0018:ffff8881de517cc0 EFLAGS: 00010296
[   64.822560][  T298] RAX: 0000000000000054 RBX: ffffffff85dc6240 RCX: c723b34d2c94fd00
[   64.830500][  T298] RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000000
[   64.838698][  T298] RBP: ffff8881de52c420 R08: ffffffff814b2a4c R09: ffffed103bca2f51
[   64.846647][  T298] R10: ffffed103bca2f51 R11: 0000000000000000 R12: dffffc0000000000
[   64.854616][  T298] R13: 0000000000000001 R14: 0000000000000000 R15: ffff8881e7278ee0
[   64.862648][  T298] FS:  0000555556809300(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000
[   64.871550][  T298] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   64.878100][  T298] CR2: 0000555556812628 CR3: 00000001e0b04000 CR4: 00000000003406e0
[   64.886129][  T298] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   64.894077][  T298] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   64.902018][  T298] Call Trace:
[   64.905288][  T298]  d_walk+0x2d9/0x540
[   64.909251][  T298]  ? __d_free+0x20/0x20
[   64.913375][  T298]  shrink_dcache_for_umount+0x8a/0x1a0
[   64.918981][  T298]  generic_shutdown_super+0x63/0x2a0
[   64.924234][  T298]  kill_block_super+0x79/0xd0
[   64.928894][  T298]  deactivate_locked_super+0xaf/0x100
[   64.934408][  T298]  deactivate_super+0x168/0x210
[   64.939358][  T298]  cleanup_mnt+0x432/0x4e0
[   64.943769][  T298]  task_work_run+0x186/0x1b0
[   64.948343][  T298]  prepare_exit_to_usermode+0x2b0/0x310
[   64.953861][  T298]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   64.959933][  T298] RIP: 0033:0x7fd69fe6f377
[   64.964316][  T298] 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
[   64.983901][  T298] RSP: 002b:00007ffdf88de9f8 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6
[   64.992280][  T298] RAX: 0000000000000000 RBX: 000000000000fbee RCX: 00007fd69fe6f377
[   65.000228][  T298] RDX: 00007ffdf88deab9 RSI: 0000000000000002 RDI: 00007ffdf88deab0
[   65.008167][  T298] RBP: 00007ffdf88deab0 R08: 00000000ffffffff R09: 00007ffdf88de890
[   65.016106][  T298] R10: 000055555680a633 R11: 0000000000000202 R12: 00007ffdf88dfb30
[   65.024051][  T298] R13: 000055555680a5f0 R14: 00007ffdf88dea20 R15: 0000000000000002
[   65.032059][  T298] ---[ end trace 2c212115904b10ba ]---
[   65.038499][  T298] VFS: Busy inodes after unmount of loop0. Self-destruct in 5 seconds.  Have a nice day...
executing program
[   65.113031][  T304] FAULT_INJECTION: forcing a failure.
[   65.113031][  T304] name fail_page_alloc, interval 1, probability 0, space 0, times 1
[   65.126341][  T304] CPU: 1 PID: 304 Comm: syz-executor542 Tainted: G        W         5.4.147-syzkaller-00036-geb4a5a5dbd5b #0
[   65.138339][  T304] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   65.148491][  T304] Call Trace:
[   65.151757][  T304]  dump_stack+0x18e/0x1de
[   65.156059][  T304]  should_fail+0x5d8/0x740
[   65.160466][  T304]  __alloc_pages_nodemask+0x12e/0x740
[   65.165824][  T304]  alloc_slab_page+0x39/0x3e0
[   65.170570][  T304]  new_slab+0x97/0x460
[   65.174610][  T304]  ? __add_to_page_cache_locked+0x64d/0x830
[   65.180483][  T304]  ___slab_alloc+0x330/0x4c0
[   65.185048][  T304]  ? check_preemption_disabled+0xde/0x2c0
[   65.190742][  T304]  ? alloc_buffer_head+0x22/0xe0
[   65.195651][  T304]  ? alloc_buffer_head+0x22/0xe0
[   65.200568][  T304]  kmem_cache_alloc+0x18b/0x290
[   65.205385][  T304]  alloc_buffer_head+0x22/0xe0
[   65.210637][  T304]  alloc_page_buffers+0x109/0x3f0
[   65.215626][  T304]  __getblk_gfp+0x3e7/0x750
[   65.220191][  T304]  fat_alloc_new_dir+0x1eb/0xc90
[   65.225101][  T304]  ? avc_has_perm+0x7c/0x1c0
[   65.229660][  T304]  vfat_mkdir+0xe7/0x360
[   65.233972][  T304]  vfs_mkdir+0x416/0x5f0
[   65.238189][  T304]  open_or_create_special_dir+0xba/0x150
[   65.243798][  T304]  incfs_mount_fs+0x366/0x770
[   65.248446][  T304]  legacy_get_tree+0xde/0x170
[   65.253350][  T304]  ? incfs_unlink+0x80/0x80
[   65.257938][  T304]  vfs_get_tree+0x83/0x260
[   65.262339][  T304]  do_mount+0x17be/0x2390
[   65.266647][  T304]  ? copy_mount_options+0xc9/0x300
[   65.271769][  T304]  ksys_mount+0xc2/0xf0
[   65.275934][  T304]  __x64_sys_mount+0xb1/0xc0
[   65.280498][  T304]  do_syscall_64+0xcb/0x1e0
[   65.284986][  T304]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   65.290863][  T304] RIP: 0033:0x7fd69fe6dfd9
[   65.295257][  T304] 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
[   65.314866][  T304] RSP: 002b:00007ffdf88dfae8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[   65.323247][  T304] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fd69fe6dfd9
[   65.331203][  T304] RDX: 0000000020000340 RSI: 0000000020000000 RDI: 00000000200002c0
[   65.339162][  T304] RBP: 00007ffdf88dfb10 R08: 0000000000000000 R09: 00007ffdf88dfb20
[   65.347099][  T304] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000003
[   65.355038][  T304] R13: 00007ffdf88dfb50 R14: 00007ffdf88dfb30 R15: 0000000000000002
[   65.363574][  T304] incfs: ino conflict with backing FS 1
[   65.369271][   T22] audit: type=1400 audit(1635026609.619:81): avc:  denied  { mount } for  pid=304 comm="syz-executor542" name="/" dev="incremental-fs" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unlabeled_t tclass=filesystem permissive=1
[   65.393822][   T22] audit: type=1400 audit(1635026609.649:82): avc:  denied  { unmount } for  pid=298 comm="syz-executor542" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unlabeled_t tclass=filesystem permissive=1
executing program
[   65.513010][  T306] FAULT_INJECTION: forcing a failure.
[   65.513010][  T306] name failslab, interval 1, probability 0, space 0, times 0
[   65.526222][  T306] CPU: 1 PID: 306 Comm: syz-executor542 Tainted: G        W         5.4.147-syzkaller-00036-geb4a5a5dbd5b #0
[   65.537736][  T306] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   65.547932][  T306] Call Trace:
[   65.551205][  T306]  dump_stack+0x18e/0x1de
[   65.555525][  T306]  should_fail+0x5d8/0x740
[   65.559913][  T306]  ? __xa_set_mark+0x3ed/0x4c0
[   65.564735][  T306]  ? vfat_add_entry+0x148/0x3160
[   65.569657][  T306]  should_failslab+0x5/0x20
[   65.574128][  T306]  kmem_cache_alloc_trace+0x39/0x2b0
[   65.579392][  T306]  ? __brelse+0x54/0x90
[   65.583524][  T306]  vfat_add_entry+0x148/0x3160
[   65.588265][  T306]  ? mark_buffer_dirty_inode+0x22b/0x300
[   65.593873][  T306]  ? fat_alloc_new_dir+0x7b7/0xc90
[   65.598956][  T306]  ? avc_has_perm+0x7c/0x1c0
[   65.603573][  T306]  vfat_mkdir+0x11f/0x360
[   65.607880][  T306]  vfs_mkdir+0x416/0x5f0
[   65.612094][  T306]  open_or_create_special_dir+0xba/0x150
[   65.617700][  T306]  incfs_mount_fs+0x366/0x770
[   65.622411][  T306]  legacy_get_tree+0xde/0x170
[   65.627074][  T306]  ? incfs_unlink+0x80/0x80
[   65.631627][  T306]  vfs_get_tree+0x83/0x260
[   65.636019][  T306]  do_mount+0x17be/0x2390
[   65.640323][  T306]  ? copy_mount_options+0xc9/0x300
[   65.645403][  T306]  ksys_mount+0xc2/0xf0
[   65.649614][  T306]  __x64_sys_mount+0xb1/0xc0
[   65.654192][  T306]  do_syscall_64+0xcb/0x1e0
[   65.658671][  T306]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   65.664544][  T306] RIP: 0033:0x7fd69fe6dfd9
[   65.668936][  T306] 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
[   65.688508][  T306] RSP: 002b:00007ffdf88dfae8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[   65.696892][  T306] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fd69fe6dfd9
[   65.704846][  T306] RDX: 0000000020000340 RSI: 0000000020000000 RDI: 00000000200002c0
[   65.712786][  T306] RBP: 00007ffdf88dfb10 R08: 0000000000000000 R09: 00007ffdf88dfb20
[   65.720737][  T306] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000003
[   65.728740][  T306] R13: 00007ffdf88dfb50 R14: 00007ffdf88dfb30 R15: 0000000000000003
[   65.737887][  T306] incfs: Can't find or create .index dir in ./file0
[   65.746903][  T298] BUG: Dentry ffff8881e727d440{i=0,n=.index}  still in use (1) [unmount of vfat loop0]
[   65.756589][  T298] ------------[ cut here ]------------
[   65.762054][  T298] WARNING: CPU: 1 PID: 298 at fs/dcache.c:1597 umount_check+0x179/0x1c0
[   65.770431][  T298] Modules linked in:
[   65.774328][  T298] CPU: 1 PID: 298 Comm: syz-executor542 Tainted: G        W         5.4.147-syzkaller-00036-geb4a5a5dbd5b #0
[   65.785828][  T298] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   65.795878][  T298] RIP: 0010:umount_check+0x179/0x1c0
[   65.801141][  T298] Code: ff 4c 8b 0b 48 81 c5 20 04 00 00 48 c7 c7 e0 14 c9 84 4c 89 fe 4c 89 f2 4c 89 f9 45 89 e8 31 c0 55 e8 b7 0e b3 ff 48 83 c4 08 <0f> 0b e9 fd fe ff ff 89 e9 80 e1 07 80 c1 03 38 c1 0f 8c d4 fe ff
[   65.820723][  T298] RSP: 0018:ffff8881de517cc0 EFLAGS: 00010296
[   65.826780][  T298] RAX: 0000000000000054 RBX: ffffffff85dc6240 RCX: c723b34d2c94fd00
[   65.834728][  T298] RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000000
[   65.842669][  T298] RBP: ffff8881de250420 R08: ffffffff814b2a4c R09: ffffed103bca2f51
[   65.850609][  T298] R10: ffffed103bca2f51 R11: 0000000000000000 R12: dffffc0000000000
[   65.858557][  T298] R13: 0000000000000001 R14: 0000000000000000 R15: ffff8881e727d440
[   65.866498][  T298] FS:  0000555556809300(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000
[   65.875411][  T298] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   65.881977][  T298] CR2: 0000555556812628 CR3: 00000001e0b04000 CR4: 00000000003406e0
[   65.889930][  T298] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   65.897868][  T298] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   65.905808][  T298] Call Trace:
[   65.909071][  T298]  d_walk+0x2d9/0x540
[   65.913029][  T298]  ? __d_free+0x20/0x20
[   65.917411][  T298]  shrink_dcache_for_umount+0x8a/0x1a0
[   65.922836][  T298]  generic_shutdown_super+0x63/0x2a0
[   65.928086][  T298]  kill_block_super+0x79/0xd0
[   65.932794][  T298]  deactivate_locked_super+0xaf/0x100
[   65.938146][  T298]  deactivate_super+0x168/0x210
[   65.942972][  T298]  cleanup_mnt+0x432/0x4e0
[   65.947362][  T298]  task_work_run+0x186/0x1b0
[   65.951931][  T298]  prepare_exit_to_usermode+0x2b0/0x310
[   65.957446][  T298]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   65.963308][  T298] RIP: 0033:0x7fd69fe6f377
[   65.967692][  T298] 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
[   65.987262][  T298] RSP: 002b:00007ffdf88de9f8 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6
[   65.995636][  T298] RAX: 0000000000000000 RBX: 000000000000ffd1 RCX: 00007fd69fe6f377
[   66.003575][  T298] RDX: 00007ffdf88deab9 RSI: 0000000000000002 RDI: 00007ffdf88deab0
[   66.011528][  T298] RBP: 00007ffdf88deab0 R08: 00000000ffffffff R09: 00007ffdf88de890
[   66.019475][  T298] R10: 000055555680a633 R11: 0000000000000202 R12: 00007ffdf88dfb30
[   66.027427][  T298] R13: 000055555680a5f0 R14: 00007ffdf88dea20 R15: 0000000000000004
[   66.035624][  T298] ---[ end trace 2c212115904b10bb ]---
[   66.042539][  T298] VFS: Busy inodes after unmount of loop0. Self-destruct in 5 seconds.  Have a nice day...
executing program
[   66.112587][  T308] FAULT_INJECTION: forcing a failure.
[   66.112587][  T308] name failslab, interval 1, probability 0, space 0, times 0
[   66.125204][  T308] CPU: 1 PID: 308 Comm: syz-executor542 Tainted: G        W         5.4.147-syzkaller-00036-geb4a5a5dbd5b #0
[   66.136847][  T308] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   66.146874][  T308] Call Trace:
[   66.150138][  T308]  dump_stack+0x18e/0x1de
[   66.154437][  T308]  should_fail+0x5d8/0x740
[   66.158819][  T308]  ? xas_create+0x519/0x13b0
[   66.163377][  T308]  should_failslab+0x5/0x20
[   66.167847][  T308]  kmem_cache_alloc+0x36/0x290
[   66.172578][  T308]  ? stack_trace_save+0xc4/0x160
[   66.177484][  T308]  xas_create+0x519/0x13b0
[   66.181882][  T308]  ? parse_options+0x760/0x770
[   66.186612][  T308]  xas_store+0x94/0x1610
[   66.190830][  T308]  ? __set_page_owner+0x1e5/0x200
[   66.195941][  T308]  ? preempt_count_add+0x66/0x130
[   66.200944][  T308]  ? xas_find_conflict+0x75d/0x8f0
[   66.206158][  T308]  ? _raw_spin_lock_irq+0x6d/0x170
[   66.211522][  T308]  __add_to_page_cache_locked+0x3a6/0x830
[   66.217416][  T308]  ? workingset_activation+0x150/0x150
[   66.223118][  T308]  add_to_page_cache_lru+0xc7/0x220
[   66.228289][  T308]  pagecache_get_page+0x617/0x8c0
[   66.233555][  T308]  __getblk_gfp+0x204/0x750
[   66.238037][  T308]  fat_alloc_new_dir+0x1eb/0xc90
[   66.242943][  T308]  ? avc_has_perm+0x7c/0x1c0
[   66.247507][  T308]  vfat_mkdir+0xe7/0x360
[   66.251728][  T308]  vfs_mkdir+0x416/0x5f0
[   66.255957][  T308]  open_or_create_special_dir+0xba/0x150
[   66.261555][  T308]  incfs_mount_fs+0x366/0x770
[   66.266207][  T308]  legacy_get_tree+0xde/0x170
[   66.270851][  T308]  ? incfs_unlink+0x80/0x80
[   66.275325][  T308]  vfs_get_tree+0x83/0x260
[   66.279710][  T308]  do_mount+0x17be/0x2390
[   66.284008][  T308]  ? copy_mount_options+0xc9/0x300
[   66.289085][  T308]  ksys_mount+0xc2/0xf0
[   66.298338][  T308]  __x64_sys_mount+0xb1/0xc0
[   66.302913][  T308]  do_syscall_64+0xcb/0x1e0
[   66.307396][  T308]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   66.313274][  T308] RIP: 0033:0x7fd69fe6dfd9
[   66.317660][  T308] 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
[   66.337236][  T308] RSP: 002b:00007ffdf88dfae8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[   66.345614][  T308] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fd69fe6dfd9
[   66.353554][  T308] RDX: 0000000020000340 RSI: 0000000020000000 RDI: 00000000200002c0
executing program
[   66.361492][  T308] RBP: 00007ffdf88dfb10 R08: 0000000000000000 R09: 00007ffdf88dfb20
[   66.369450][  T308] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000003
[   66.377403][  T308] R13: 00007ffdf88dfb50 R14: 00007ffdf88dfb30 R15: 0000000000000004
[   66.387032][  T308] incfs: ino conflict with backing FS 1
[   66.442966][  T310] FAULT_INJECTION: forcing a failure.
[   66.442966][  T310] name failslab, interval 1, probability 0, space 0, times 0
[   66.455620][  T310] CPU: 1 PID: 310 Comm: syz-executor542 Tainted: G        W         5.4.147-syzkaller-00036-geb4a5a5dbd5b #0
[   66.467151][  T310] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   66.477288][  T310] Call Trace:
[   66.480579][  T310]  dump_stack+0x18e/0x1de
[   66.484888][  T310]  should_fail+0x5d8/0x740
[   66.489277][  T310]  ? security_inode_alloc+0x32/0x1d0
[   66.494530][  T310]  should_failslab+0x5/0x20
[   66.499003][  T310]  kmem_cache_alloc+0x36/0x290
[   66.503741][  T310]  security_inode_alloc+0x32/0x1d0
[   66.508823][  T310]  inode_init_always+0x387/0x810
[   66.514597][  T310]  ? fat_get_block_bmap+0x330/0x330
[   66.522536][  T310]  new_inode_pseudo+0x90/0x220
[   66.528795][  T310]  new_inode+0x25/0x1d0
[   66.533022][  T310]  ? _raw_spin_lock+0x6c/0x170
[   66.537790][  T310]  fat_build_inode+0x1e8/0x3e0
[   66.542542][  T310]  vfat_mkdir+0x212/0x360
[   66.546857][  T310]  vfs_mkdir+0x416/0x5f0
[   66.551071][  T310]  open_or_create_special_dir+0xba/0x150
[   66.556674][  T310]  incfs_mount_fs+0x366/0x770
[   66.561515][  T310]  legacy_get_tree+0xde/0x170
[   66.566227][  T310]  ? incfs_unlink+0x80/0x80
[   66.570707][  T310]  vfs_get_tree+0x83/0x260
[   66.575139][  T310]  do_mount+0x17be/0x2390
[   66.579445][  T310]  ? copy_mount_options+0xc9/0x300
[   66.584548][  T310]  ksys_mount+0xc2/0xf0
[   66.588688][  T310]  __x64_sys_mount+0xb1/0xc0
[   66.593513][  T310]  do_syscall_64+0xcb/0x1e0
[   66.598001][  T310]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   66.603866][  T310] RIP: 0033:0x7fd69fe6dfd9
[   66.608261][  T310] 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
[   66.628360][  T310] RSP: 002b:00007ffdf88dfae8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[   66.636747][  T310] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fd69fe6dfd9
[   66.644795][  T310] RDX: 0000000020000340 RSI: 0000000020000000 RDI: 00000000200002c0
[   66.652737][  T310] RBP: 00007ffdf88dfb10 R08: 0000000000000000 R09: 00007ffdf88dfb20
[   66.660677][  T310] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000003
[   66.668616][  T310] R13: 00007ffdf88dfb50 R14: 00007ffdf88dfb30 R15: 0000000000000005
[   66.676705][  T310] incfs: Can't find or create .index dir in ./file0
[   66.685012][  T298] BUG: Dentry ffff8881e72b1000{i=0,n=.index}  still in use (1) [unmount of vfat loop0]
[   66.694744][  T298] ------------[ cut here ]------------
[   66.700189][  T298] WARNING: CPU: 0 PID: 298 at fs/dcache.c:1597 umount_check+0x179/0x1c0
[   66.708480][  T298] Modules linked in:
[   66.712370][  T298] CPU: 0 PID: 298 Comm: syz-executor542 Tainted: G        W         5.4.147-syzkaller-00036-geb4a5a5dbd5b #0
[   66.723877][  T298] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   66.734061][  T298] RIP: 0010:umount_check+0x179/0x1c0
[   66.739435][  T298] Code: ff 4c 8b 0b 48 81 c5 20 04 00 00 48 c7 c7 e0 14 c9 84 4c 89 fe 4c 89 f2 4c 89 f9 45 89 e8 31 c0 55 e8 b7 0e b3 ff 48 83 c4 08 <0f> 0b e9 fd fe ff ff 89 e9 80 e1 07 80 c1 03 38 c1 0f 8c d4 fe ff
[   66.759012][  T298] RSP: 0018:ffff8881de517cc0 EFLAGS: 00010296
[   66.765053][  T298] RAX: 0000000000000054 RBX: ffffffff85dc6240 RCX: c723b34d2c94fd00
[   66.772997][  T298] RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000000
[   66.780938][  T298] RBP: ffff8881de257420 R08: ffffffff814b2a4c R09: ffffed103edc9608
[   66.788890][  T298] R10: ffffed103edc9608 R11: 0000000000000000 R12: dffffc0000000000
[   66.796830][  T298] R13: 0000000000000001 R14: 0000000000000000 R15: ffff8881e72b1000
[   66.804770][  T298] FS:  0000555556809300(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
[   66.813673][  T298] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   66.820226][  T298] CR2: 0000555556812628 CR3: 00000001e0b04000 CR4: 00000000003406f0
[   66.828182][  T298] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   66.836334][  T298] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   66.844280][  T298] Call Trace:
[   66.847551][  T298]  d_walk+0x2d9/0x540
[   66.851513][  T298]  ? __d_free+0x20/0x20
[   66.855638][  T298]  shrink_dcache_for_umount+0x8a/0x1a0
[   66.861090][  T298]  generic_shutdown_super+0x63/0x2a0
[   66.866357][  T298]  kill_block_super+0x79/0xd0
[   66.871012][  T298]  deactivate_locked_super+0xaf/0x100
[   66.876391][  T298]  deactivate_super+0x168/0x210
[   66.881998][  T298]  cleanup_mnt+0x432/0x4e0
[   66.886397][  T298]  task_work_run+0x186/0x1b0
[   66.891057][  T298]  prepare_exit_to_usermode+0x2b0/0x310
[   66.896587][  T298]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   66.902968][  T298] RIP: 0033:0x7fd69fe6f377
[   66.907351][  T298] 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
[   66.926921][  T298] RSP: 002b:00007ffdf88de9f8 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6
[   66.935456][  T298] RAX: 0000000000000000 RBX: 0000000000010374 RCX: 00007fd69fe6f377
[   66.943408][  T298] RDX: 00007ffdf88deab9 RSI: 0000000000000002 RDI: 00007ffdf88deab0
[   66.951353][  T298] RBP: 00007ffdf88deab0 R08: 00000000ffffffff R09: 00007ffdf88de890
[   66.959294][  T298] R10: 000055555680a633 R11: 0000000000000202 R12: 00007ffdf88dfb30
[   66.967240][  T298] R13: 000055555680a5f0 R14: 00007ffdf88dea20 R15: 0000000000000006
[   66.975194][  T298] ---[ end trace 2c212115904b10bc ]---
[   66.981156][   T12] cfg80211: failed to load regulatory.db
[   66.983682][  T298] VFS: Busy inodes after unmount of loop0. Self-destruct in 5 seconds.  Have a nice day...
executing program
[   67.041772][  T312] FAULT_INJECTION: forcing a failure.
[   67.041772][  T312] name fail_page_alloc, interval 1, probability 0, space 0, times 0
[   67.055140][  T312] CPU: 0 PID: 312 Comm: syz-executor542 Tainted: G        W         5.4.147-syzkaller-00036-geb4a5a5dbd5b #0
[   67.066662][  T312] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   67.076697][  T312] Call Trace:
[   67.079968][  T312]  dump_stack+0x18e/0x1de
[   67.084266][  T312]  should_fail+0x5d8/0x740
[   67.088671][  T312]  __alloc_pages_nodemask+0x12e/0x740
[   67.094020][  T312]  alloc_slab_page+0x39/0x3e0
[   67.098666][  T312]  new_slab+0x97/0x460
[   67.102712][  T312]  ___slab_alloc+0x330/0x4c0
[   67.107268][  T312]  ? check_preemption_disabled+0xde/0x2c0
[   67.112967][  T312]  ? alloc_buffer_head+0x22/0xe0
[   67.117897][  T312]  ? alloc_buffer_head+0x22/0xe0
[   67.122802][  T312]  kmem_cache_alloc+0x18b/0x290
[   67.127624][  T312]  alloc_buffer_head+0x22/0xe0
[   67.132358][  T312]  alloc_page_buffers+0x109/0x3f0
[   67.137496][  T312]  __getblk_gfp+0x3e7/0x750
[   67.142105][  T312]  fat_alloc_new_dir+0x1eb/0xc90
[   67.147012][  T312]  ? avc_has_perm+0x7c/0x1c0
[   67.151572][  T312]  vfat_mkdir+0xe7/0x360
[   67.155786][  T312]  vfs_mkdir+0x416/0x5f0
[   67.160000][  T312]  open_or_create_special_dir+0xba/0x150
[   67.165601][  T312]  incfs_mount_fs+0x366/0x770
[   67.170247][  T312]  legacy_get_tree+0xde/0x170
[   67.174889][  T312]  ? incfs_unlink+0x80/0x80
[   67.179361][  T312]  vfs_get_tree+0x83/0x260
[   67.183746][  T312]  do_mount+0x17be/0x2390
[   67.188044][  T312]  ? copy_mount_options+0xc9/0x300
[   67.193119][  T312]  ksys_mount+0xc2/0xf0
[   67.197246][  T312]  __x64_sys_mount+0xb1/0xc0
[   67.201804][  T312]  do_syscall_64+0xcb/0x1e0
[   67.206275][  T312]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   67.212133][  T312] RIP: 0033:0x7fd69fe6dfd9
[   67.216515][  T312] 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
[   67.236328][  T312] RSP: 002b:00007ffdf88dfae8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[   67.244710][  T312] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fd69fe6dfd9
[   67.252656][  T312] RDX: 0000000020000340 RSI: 0000000020000000 RDI: 00000000200002c0
[   67.260594][  T312] RBP: 00007ffdf88dfb10 R08: 0000000000000000 R09: 00007ffdf88dfb20
[   67.268532][  T312] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000003
[   67.276472][  T312] R13: 00007ffdf88dfb50 R14: 00007ffdf88dfb30 R15: 0000000000000006
[   67.285778][  T312] incfs: ino conflict with backing FS 1
executing program
[   67.351296][  T314] FAULT_INJECTION: forcing a failure.
[   67.351296][  T314] name failslab, interval 1, probability 0, space 0, times 0
[   67.363886][  T314] CPU: 1 PID: 314 Comm: syz-executor542 Tainted: G        W         5.4.147-syzkaller-00036-geb4a5a5dbd5b #0
[   67.375386][  T314] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   67.385409][  T314] Call Trace:
[   67.388681][  T314]  dump_stack+0x18e/0x1de
[   67.392989][  T314]  should_fail+0x5d8/0x740
[   67.397373][  T314]  ? xas_create+0x519/0x13b0
[   67.401942][  T314]  should_failslab+0x5/0x20
[   67.406423][  T314]  kmem_cache_alloc+0x36/0x290
[   67.411160][  T314]  ? stack_trace_save+0xc4/0x160
[   67.416154][  T314]  xas_create+0x519/0x13b0
[   67.420551][  T314]  ? parse_options+0x760/0x770
[   67.425283][  T314]  xas_store+0x94/0x1610
[   67.434279][  T314]  ? __set_page_owner+0x1e5/0x200
[   67.439271][  T314]  ? preempt_count_add+0x66/0x130
[   67.444261][  T314]  ? xas_find_conflict+0x75d/0x8f0
[   67.449351][  T314]  ? _raw_spin_lock_irq+0x6d/0x170
[   67.454455][  T314]  __add_to_page_cache_locked+0x3a6/0x830
[   67.460143][  T314]  ? workingset_activation+0x150/0x150
[   67.465568][  T314]  add_to_page_cache_lru+0xc7/0x220
[   67.470749][  T314]  pagecache_get_page+0x617/0x8c0
[   67.475764][  T314]  __getblk_gfp+0x204/0x750
[   67.480249][  T314]  fat_alloc_new_dir+0x1eb/0xc90
[   67.485156][  T314]  ? avc_has_perm+0x7c/0x1c0
[   67.489717][  T314]  vfat_mkdir+0xe7/0x360
[   67.494015][  T314]  vfs_mkdir+0x416/0x5f0
[   67.498326][  T314]  open_or_create_special_dir+0xba/0x150
[   67.503926][  T314]  incfs_mount_fs+0x366/0x770
[   67.508608][  T314]  legacy_get_tree+0xde/0x170
[   67.513336][  T314]  ? incfs_unlink+0x80/0x80
[   67.517892][  T314]  vfs_get_tree+0x83/0x260
[   67.522290][  T314]  do_mount+0x17be/0x2390
[   67.526600][  T314]  ? copy_mount_options+0xc9/0x300
[   67.531690][  T314]  ksys_mount+0xc2/0xf0
[   67.535813][  T314]  __x64_sys_mount+0xb1/0xc0
[   67.540370][  T314]  do_syscall_64+0xcb/0x1e0
[   67.544846][  T314]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   67.550719][  T314] RIP: 0033:0x7fd69fe6dfd9
[   67.555102][  T314] 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
[   67.574846][  T314] RSP: 002b:00007ffdf88dfae8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[   67.583236][  T314] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fd69fe6dfd9
[   67.591177][  T314] RDX: 0000000020000340 RSI: 0000000020000000 RDI: 00000000200002c0
[   67.599190][  T314] RBP: 00007ffdf88dfb10 R08: 0000000000000000 R09: 00007ffdf88dfb20
[   67.607223][  T314] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000003
[   67.616058][  T314] R13: 00007ffdf88dfb50 R14: 00007ffdf88dfb30 R15: 0000000000000007
[   67.625632][  T314] incfs: ino conflict with backing FS 1
executing program
[   67.713279][  T316] FAULT_INJECTION: forcing a failure.
[   67.713279][  T316] name failslab, interval 1, probability 0, space 0, times 0
[   67.726218][  T316] CPU: 1 PID: 316 Comm: syz-executor542 Tainted: G        W         5.4.147-syzkaller-00036-geb4a5a5dbd5b #0
[   67.738376][  T316] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   67.748739][  T316] Call Trace:
[   67.752008][  T316]  dump_stack+0x18e/0x1de
[   67.756336][  T316]  should_fail+0x5d8/0x740
[   67.760749][  T316]  ? vfat_add_entry+0x286/0x3160
[   67.765673][  T316]  should_failslab+0x5/0x20
[   67.770253][  T316]  kmem_cache_alloc+0x36/0x290
[   67.775084][  T316]  ? __brelse+0x54/0x90
[   67.779220][  T316]  vfat_add_entry+0x286/0x3160
[   67.783961][  T316]  ? mark_buffer_dirty_inode+0x22b/0x300
[   67.789573][  T316]  ? fat_alloc_new_dir+0x7b7/0xc90
[   67.794655][  T316]  ? avc_has_perm+0x7c/0x1c0
[   67.799221][  T316]  vfat_mkdir+0x11f/0x360
[   67.803540][  T316]  vfs_mkdir+0x416/0x5f0
[   67.808128][  T316]  open_or_create_special_dir+0xba/0x150
[   67.813834][  T316]  incfs_mount_fs+0x366/0x770
[   67.818498][  T316]  legacy_get_tree+0xde/0x170
[   67.823155][  T316]  ? incfs_unlink+0x80/0x80
[   67.827714][  T316]  vfs_get_tree+0x83/0x260
[   67.832186][  T316]  do_mount+0x17be/0x2390
[   67.836599][  T316]  ? copy_mount_options+0xc9/0x300
[   67.841677][  T316]  ksys_mount+0xc2/0xf0
[   67.845886][  T316]  __x64_sys_mount+0xb1/0xc0
[   67.850451][  T316]  do_syscall_64+0xcb/0x1e0
[   67.854923][  T316]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   67.860783][  T316] RIP: 0033:0x7fd69fe6dfd9
[   67.865166][  T316] 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
[   67.884737][  T316] RSP: 002b:00007ffdf88dfae8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[   67.896936][  T316] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fd69fe6dfd9
[   67.904875][  T316] RDX: 0000000020000340 RSI: 0000000020000000 RDI: 00000000200002c0
[   67.913077][  T316] RBP: 00007ffdf88dfb10 R08: 0000000000000000 R09: 00007ffdf88dfb20
[   67.921141][  T316] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000003
[   67.929134][  T316] R13: 00007ffdf88dfb50 R14: 00007ffdf88dfb30 R15: 0000000000000008
[   67.938796][  T316] incfs: Can't find or create .index dir in ./file0
[   67.946759][  T298] BUG: Dentry ffff8881e72b8aa0{i=0,n=.index}  still in use (1) [unmount of vfat loop0]
[   67.956471][  T298] ------------[ cut here ]------------
[   67.961921][  T298] WARNING: CPU: 1 PID: 298 at fs/dcache.c:1597 umount_check+0x179/0x1c0
[   67.970302][  T298] Modules linked in:
[   67.974178][  T298] CPU: 1 PID: 298 Comm: syz-executor542 Tainted: G        W         5.4.147-syzkaller-00036-geb4a5a5dbd5b #0
[   67.985683][  T298] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   67.995837][  T298] RIP: 0010:umount_check+0x179/0x1c0
[   68.001108][  T298] Code: ff 4c 8b 0b 48 81 c5 20 04 00 00 48 c7 c7 e0 14 c9 84 4c 89 fe 4c 89 f2 4c 89 f9 45 89 e8 31 c0 55 e8 b7 0e b3 ff 48 83 c4 08 <0f> 0b e9 fd fe ff ff 89 e9 80 e1 07 80 c1 03 38 c1 0f 8c d4 fe ff
[   68.021391][  T298] RSP: 0018:ffff8881de517cc0 EFLAGS: 00010296
[   68.027531][  T298] RAX: 0000000000000054 RBX: ffffffff85dc6240 RCX: c723b34d2c94fd00
[   68.035836][  T298] RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000000
[   68.043786][  T298] RBP: ffff8881dd917420 R08: ffffffff814b2a4c R09: ffffed103bca2f51
[   68.051730][  T298] R10: ffffed103bca2f51 R11: 0000000000000000 R12: dffffc0000000000
[   68.060196][  T298] R13: 0000000000000001 R14: 0000000000000000 R15: ffff8881e72b8aa0
[   68.068137][  T298] FS:  0000555556809300(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000
[   68.077031][  T298] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   68.083584][  T298] CR2: 0000555556812628 CR3: 00000001e0b04000 CR4: 00000000003406e0
[   68.091541][  T298] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   68.099655][  T298] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   68.107597][  T298] Call Trace:
[   68.110871][  T298]  d_walk+0x2d9/0x540
[   68.114839][  T298]  ? __d_free+0x20/0x20
[   68.119045][  T298]  shrink_dcache_for_umount+0x8a/0x1a0
[   68.124468][  T298]  generic_shutdown_super+0x63/0x2a0
[   68.129733][  T298]  kill_block_super+0x79/0xd0
[   68.134380][  T298]  deactivate_locked_super+0xaf/0x100
[   68.139731][  T298]  deactivate_super+0x168/0x210
[   68.144556][  T298]  cleanup_mnt+0x432/0x4e0
[   68.148944][  T298]  task_work_run+0x186/0x1b0
[   68.153508][  T298]  prepare_exit_to_usermode+0x2b0/0x310
[   68.159077][  T298]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   68.164937][  T298] RIP: 0033:0x7fd69fe6f377
[   68.169366][  T298] 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
[   68.188938][  T298] RSP: 002b:00007ffdf88de9f8 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6
[   68.197312][  T298] RAX: 0000000000000000 RBX: 000000000001086a RCX: 00007fd69fe6f377
[   68.205258][  T298] RDX: 00007ffdf88deab9 RSI: 0000000000000002 RDI: 00007ffdf88deab0
[   68.213198][  T298] RBP: 00007ffdf88deab0 R08: 00000000ffffffff R09: 00007ffdf88de890
[   68.221135][  T298] R10: 000055555680a633 R11: 0000000000000202 R12: 00007ffdf88dfb30
[   68.229071][  T298] R13: 000055555680a5f0 R14: 00007ffdf88dea20 R15: 0000000000000009
[   68.237022][  T298] ---[ end trace 2c212115904b10bd ]---
[   68.243984][  T298] VFS: Busy inodes after unmount of loop0. Self-destruct in 5 seconds.  Have a nice day...
executing program
[   68.312545][  T318] FAULT_INJECTION: forcing a failure.
[   68.312545][  T318] name failslab, interval 1, probability 0, space 0, times 0
[   68.325250][  T318] CPU: 1 PID: 318 Comm: syz-executor542 Tainted: G        W         5.4.147-syzkaller-00036-geb4a5a5dbd5b #0
[   68.336855][  T318] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   68.346883][  T318] Call Trace:
[   68.350144][  T318]  dump_stack+0x18e/0x1de
[   68.354445][  T318]  should_fail+0x5d8/0x740
[   68.358829][  T318]  ? vfat_add_entry+0x286/0x3160
[   68.363742][  T318]  should_failslab+0x5/0x20
[   68.368210][  T318]  kmem_cache_alloc+0x36/0x290
[   68.372939][  T318]  ? __brelse+0x54/0x90
[   68.377058][  T318]  vfat_add_entry+0x286/0x3160
[   68.381790][  T318]  ? mark_buffer_dirty_inode+0x22b/0x300
[   68.387386][  T318]  ? fat_alloc_new_dir+0x7b7/0xc90
[   68.392463][  T318]  ? avc_has_perm+0x7c/0x1c0
[   68.397018][  T318]  vfat_mkdir+0x11f/0x360
[   68.401315][  T318]  vfs_mkdir+0x416/0x5f0
[   68.405523][  T318]  open_or_create_special_dir+0xba/0x150
[   68.411208][  T318]  incfs_mount_fs+0x366/0x770
[   68.415951][  T318]  legacy_get_tree+0xde/0x170
[   68.420601][  T318]  ? incfs_unlink+0x80/0x80
[   68.425074][  T318]  vfs_get_tree+0x83/0x260
[   68.429455][  T318]  do_mount+0x17be/0x2390
[   68.433753][  T318]  ? copy_mount_options+0xc9/0x300
[   68.438843][  T318]  ksys_mount+0xc2/0xf0
[   68.442985][  T318]  __x64_sys_mount+0xb1/0xc0
[   68.447550][  T318]  do_syscall_64+0xcb/0x1e0
[   68.452032][  T318]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   68.457905][  T318] RIP: 0033:0x7fd69fe6dfd9
[   68.462287][  T318] 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
[   68.481866][  T318] RSP: 002b:00007ffdf88dfae8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[   68.490248][  T318] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fd69fe6dfd9
[   68.498189][  T318] RDX: 0000000020000340 RSI: 0000000020000000 RDI: 00000000200002c0
[   68.506130][  T318] RBP: 00007ffdf88dfb10 R08: 0000000000000000 R09: 00007ffdf88dfb20
[   68.514066][  T318] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000003
[   68.522007][  T318] R13: 00007ffdf88dfb50 R14: 00007ffdf88dfb30 R15: 0000000000000009
[   68.530107][  T318] incfs: Can't find or create .index dir in ./file0
[   68.538355][  T298] BUG: Dentry ffff8881e72c3660{i=0,n=.index}  still in use (1) [unmount of vfat loop0]
[   68.548659][  T298] ------------[ cut here ]------------
[   68.554093][  T298] WARNING: CPU: 0 PID: 298 at fs/dcache.c:1597 umount_check+0x179/0x1c0
[   68.562380][  T298] Modules linked in:
[   68.566245][  T298] CPU: 0 PID: 298 Comm: syz-executor542 Tainted: G        W         5.4.147-syzkaller-00036-geb4a5a5dbd5b #0
[   68.577745][  T298] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   68.587776][  T298] RIP: 0010:umount_check+0x179/0x1c0
[   68.593025][  T298] Code: ff 4c 8b 0b 48 81 c5 20 04 00 00 48 c7 c7 e0 14 c9 84 4c 89 fe 4c 89 f2 4c 89 f9 45 89 e8 31 c0 55 e8 b7 0e b3 ff 48 83 c4 08 <0f> 0b e9 fd fe ff ff 89 e9 80 e1 07 80 c1 03 38 c1 0f 8c d4 fe ff
[   68.612596][  T298] RSP: 0018:ffff8881de517cc0 EFLAGS: 00010296
[   68.618638][  T298] RAX: 0000000000000054 RBX: ffffffff85dc6240 RCX: c723b34d2c94fd00
[   68.626579][  T298] RDX: 0000000000000000 RSI: 0000000080000002 RDI: 0000000000000000
[   68.634645][  T298] RBP: ffff8881dd911420 R08: ffffffff814b2a4c R09: ffffed103edc9608
[   68.642593][  T298] R10: ffffed103edc9608 R11: 0000000000000000 R12: dffffc0000000000
[   68.650540][  T298] R13: 0000000000000001 R14: 0000000000000000 R15: ffff8881e72c3660
[   68.658480][  T298] FS:  0000555556809300(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
[   68.667390][  T298] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   68.673982][  T298] CR2: 0000555556812628 CR3: 00000001e0b04000 CR4: 00000000003406f0
[   68.681920][  T298] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   68.689862][  T298] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   68.697797][  T298] Call Trace:
[   68.701066][  T298]  d_walk+0x2d9/0x540
[   68.705013][  T298]  ? __d_free+0x20/0x20
[   68.709169][  T298]  shrink_dcache_for_umount+0x8a/0x1a0
[   68.714593][  T298]  generic_shutdown_super+0x63/0x2a0
[   68.719849][  T298]  kill_block_super+0x79/0xd0
[   68.724490][  T298]  deactivate_locked_super+0xaf/0x100
[   68.729842][  T298]  deactivate_super+0x168/0x210
[   68.734656][  T298]  cleanup_mnt+0x432/0x4e0
[   68.739042][  T298]  task_work_run+0x186/0x1b0
[   68.743604][  T298]  prepare_exit_to_usermode+0x2b0/0x310
[   68.749159][  T298]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   68.756038][  T298] RIP: 0033:0x7fd69fe6f377
[   68.760450][  T298] 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
[   68.780119][  T298] RSP: 002b:00007ffdf88de9f8 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6
[   68.788497][  T298] RAX: 0000000000000000 RBX: 0000000000010ac2 RCX: 00007fd69fe6f377
[   68.796442][  T298] RDX: 00007ffdf88deab9 RSI: 0000000000000002 RDI: 00007ffdf88deab0
[   68.804429][  T298] RBP: 00007ffdf88deab0 R08: 00000000ffffffff R09: 00007ffdf88de890
[   68.812384][  T298] R10: 000055555680a633 R11: 0000000000000202 R12: 00007ffdf88dfb30
[   68.820327][  T298] R13: 000055555680a5f0 R14: 00007ffdf88dea20 R15: 000000000000000a
[   68.828273][  T298] ---[ end trace 2c212115904b10be ]---
[   68.835812][  T298] VFS: Busy inodes after unmount of loop0. Self-destruct in 5 seconds.  Have a nice day...
executing program
[   68.921726][  T320] FAULT_INJECTION: forcing a failure.
[   68.921726][  T320] name failslab, interval 1, probability 0, space 0, times 0
[   68.934712][  T320] CPU: 1 PID: 320 Comm: syz-executor542 Tainted: G        W         5.4.147-syzkaller-00036-geb4a5a5dbd5b #0
[   68.946216][  T320] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   68.956250][  T320] Call Trace:
[   68.959514][  T320]  dump_stack+0x18e/0x1de
[   68.963833][  T320]  should_fail+0x5d8/0x740
[   68.968230][  T320]  ? xas_create+0x519/0x13b0
[   68.972783][  T320]  should_failslab+0x5/0x20
[   68.977250][  T320]  kmem_cache_alloc+0x36/0x290
[   68.981986][  T320]  ? stack_trace_save+0xc4/0x160
[   68.986885][  T320]  xas_create+0x519/0x13b0
[   68.991267][  T320]  ? parse_options+0x760/0x770
[   68.995995][  T320]  xas_store+0x94/0x1610
[   69.000213][  T320]  ? __set_page_owner+0x1e5/0x200
[   69.005206][  T320]  ? preempt_count_add+0x66/0x130
[   69.010198][  T320]  ? xas_find_conflict+0x75d/0x8f0
[   69.015276][  T320]  ? _raw_spin_lock_irq+0x6d/0x170
[   69.020356][  T320]  __add_to_page_cache_locked+0x3a6/0x830
[   69.026042][  T320]  ? workingset_activation+0x150/0x150
[   69.031476][  T320]  add_to_page_cache_lru+0xc7/0x220
[   69.036680][  T320]  pagecache_get_page+0x617/0x8c0
[   69.041695][  T320]  __getblk_gfp+0x204/0x750
[   69.046173][  T320]  fat_alloc_new_dir+0x1eb/0xc90
[   69.051079][  T320]  ? avc_has_perm+0x7c/0x1c0
[   69.055639][  T320]  vfat_mkdir+0xe7/0x360
[   69.059848][  T320]  vfs_mkdir+0x416/0x5f0
[   69.064072][  T320]  open_or_create_special_dir+0xba/0x150
[   69.070539][  T320]  incfs_mount_fs+0x366/0x770
[   69.075186][  T320]  legacy_get_tree+0xde/0x170
[   69.079829][  T320]  ? incfs_unlink+0x80/0x80
[   69.084305][  T320]  vfs_get_tree+0x83/0x260
[   69.088685][  T320]  do_mount+0x17be/0x2390
[   69.092982][  T320]  ? copy_mount_options+0xc9/0x300
[   69.098056][  T320]  ksys_mount+0xc2/0xf0
[   69.102178][  T320]  __x64_sys_mount+0xb1/0xc0
[   69.106733][  T320]  do_syscall_64+0xcb/0x1e0
[   69.111211][  T320]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   69.117070][  T320] RIP: 0033:0x7fd69fe6dfd9
[   69.121451][  T320] 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
[   69.141018][  T320] RSP: 002b:00007ffdf88dfae8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[   69.149393][  T320] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fd69fe6dfd9
[   69.157327][  T320] RDX: 0000000020000340 RSI: 0000000020000000 RDI: 00000000200002c0
[   69.165265][  T320] RBP: 00007ffdf88dfb10 R08: 0000000000000000 R09: 00007ffdf88dfb20
[   69.173722][  T320] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000003
[   69.182014][  T320] R13: 00007ffdf88dfb50 R14: 00007ffdf88dfb30 R15: 000000000000000a
[   69.191813][  T320] incfs: ino conflict with backing FS 1
executing program
[   69.314322][  T322] FAULT_INJECTION: forcing a failure.
[   69.314322][  T322] name failslab, interval 1, probability 0, space 0, times 0
[   69.326932][  T322] CPU: 1 PID: 322 Comm: syz-executor542 Tainted: G        W         5.4.147-syzkaller-00036-geb4a5a5dbd5b #0
[   69.338535][  T322] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   69.348657][  T322] Call Trace:
[   69.351921][  T322]  dump_stack+0x18e/0x1de
[   69.356220][  T322]  should_fail+0x5d8/0x740
[   69.360625][  T322]  ? vfat_add_entry+0x286/0x3160
[   69.365625][  T322]  should_failslab+0x5/0x20
[   69.370097][  T322]  kmem_cache_alloc+0x36/0x290
[   69.374831][  T322]  ? __brelse+0x54/0x90
[   69.378955][  T322]  vfat_add_entry+0x286/0x3160
[   69.383695][  T322]  ? mark_buffer_dirty_inode+0x22b/0x300
[   69.389294][  T322]  ? fat_alloc_new_dir+0x7b7/0xc90
[   69.394374][  T322]  ? avc_has_perm+0x7c/0x1c0
[   69.399022][  T322]  vfat_mkdir+0x11f/0x360
[   69.403322][  T322]  vfs_mkdir+0x416/0x5f0
[   69.407550][  T322]  open_or_create_special_dir+0xba/0x150
[   69.413153][  T322]  incfs_mount_fs+0x366/0x770
[   69.417799][  T322]  legacy_get_tree+0xde/0x170
[   69.422454][  T322]  ? incfs_unlink+0x80/0x80
[   69.426922][  T322]  vfs_get_tree+0x83/0x260
[   69.431308][  T322]  do_mount+0x17be/0x2390
[   69.435621][  T322]  ? copy_mount_options+0xc9/0x300
[   69.440705][  T322]  ksys_mount+0xc2/0xf0
[   69.444830][  T322]  __x64_sys_mount+0xb1/0xc0
[   69.449391][  T322]  do_syscall_64+0xcb/0x1e0
[   69.453866][  T322]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   69.459726][  T322] RIP: 0033:0x7fd69fe6dfd9
[   69.464108][  T322] 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
[   69.483683][  T322] RSP: 002b:00007ffdf88dfae8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[   69.492063][  T322] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fd69fe6dfd9
[   69.500007][  T322] RDX: 0000000020000340 RSI: 0000000020000000 RDI: 00000000200002c0
[   69.507946][  T322] RBP: 00007ffdf88dfb10 R08: 0000000000000000 R09: 00007ffdf88dfb20
[   69.515887][  T322] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000003
[   69.523837][  T322] R13: 00007ffdf88dfb50 R14: 00007ffdf88dfb30 R15: 000000000000000b
[   69.531898][  T322] incfs: Can't find or create .index dir in ./file0
[   69.539499][  T298] BUG: Dentry ffff8881e72eb220{i=0,n=.index}  still in use (1) [unmount of vfat loop0]
[   69.549181][  T298] ------------[ cut here ]------------
[   69.554715][  T298] WARNING: CPU: 0 PID: 298 at fs/dcache.c:1597 umount_check+0x179/0x1c0
[   69.562998][  T298] Modules linked in:
[   69.566868][  T298] CPU: 0 PID: 298 Comm: syz-executor542 Tainted: G        W         5.4.147-syzkaller-00036-geb4a5a5dbd5b #0
[   69.578367][  T298] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   69.588410][  T298] RIP: 0010:umount_check+0x179/0x1c0
[   69.593671][  T298] Code: ff 4c 8b 0b 48 81 c5 20 04 00 00 48 c7 c7 e0 14 c9 84 4c 89 fe 4c 89 f2 4c 89 f9 45 89 e8 31 c0 55 e8 b7 0e b3 ff 48 83 c4 08 <0f> 0b e9 fd fe ff ff 89 e9 80 e1 07 80 c1 03 38 c1 0f 8c d4 fe ff
[   69.613249][  T298] RSP: 0018:ffff8881de517cc0 EFLAGS: 00010296
[   69.619288][  T298] RAX: 0000000000000054 RBX: ffffffff85dc6240 RCX: c723b34d2c94fd00
[   69.627355][  T298] RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000000
[   69.635295][  T298] RBP: ffff8881dd912420 R08: ffffffff814b2a4c R09: ffffed103edc9608
[   69.643239][  T298] R10: ffffed103edc9608 R11: 0000000000000000 R12: dffffc0000000000
[   69.651184][  T298] R13: 0000000000000001 R14: 0000000000000000 R15: ffff8881e72eb220
[   69.659126][  T298] FS:  0000555556809300(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
[   69.668109][  T298] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   69.674661][  T298] CR2: 0000555556812628 CR3: 00000001e0b04000 CR4: 00000000003406f0
[   69.682608][  T298] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   69.690552][  T298] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   69.698510][  T298] Call Trace:
[   69.701773][  T298]  d_walk+0x2d9/0x540
[   69.705731][  T298]  ? __d_free+0x20/0x20
[   69.709871][  T298]  shrink_dcache_for_umount+0x8a/0x1a0
[   69.715311][  T298]  generic_shutdown_super+0x63/0x2a0
[   69.720569][  T298]  kill_block_super+0x79/0xd0
[   69.725220][  T298]  deactivate_locked_super+0xaf/0x100
[   69.730559][  T298]  deactivate_super+0x168/0x210
[   69.735388][  T298]  cleanup_mnt+0x432/0x4e0
[   69.739776][  T298]  task_work_run+0x186/0x1b0
[   69.744334][  T298]  prepare_exit_to_usermode+0x2b0/0x310
[   69.749854][  T298]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   69.755713][  T298] RIP: 0033:0x7fd69fe6f377
[   69.760095][  T298] 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
[   69.779664][  T298] RSP: 002b:00007ffdf88de9f8 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6
[   69.788041][  T298] RAX: 0000000000000000 RBX: 0000000000010eaa RCX: 00007fd69fe6f377
[   69.795980][  T298] RDX: 00007ffdf88deaba RSI: 0000000000000002 RDI: 00007ffdf88deab0
[   69.803917][  T298] RBP: 00007ffdf88deab0 R08: 00000000ffffffff R09: 00007ffdf88de890
[   69.811855][  T298] R10: 000055555680a633 R11: 0000000000000202 R12: 00007ffdf88dfb30
[   69.819792][  T298] R13: 000055555680a5f0 R14: 00007ffdf88dea20 R15: 000000000000000c
[   69.827735][  T298] ---[ end trace 2c212115904b10bf ]---
[   69.833585][  T298] VFS: Busy inodes after unmount of loop0. Self-destruct in 5 seconds.  Have a nice day...
executing program
[   69.910975][  T324] FAULT_INJECTION: forcing a failure.
[   69.910975][  T324] name failslab, interval 1, probability 0, space 0, times 0
[   69.924327][  T324] CPU: 0 PID: 324 Comm: syz-executor542 Tainted: G        W         5.4.147-syzkaller-00036-geb4a5a5dbd5b #0
[   69.936055][  T324] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   69.946195][  T324] Call Trace:
[   69.949463][  T324]  dump_stack+0x18e/0x1de
[   69.953796][  T324]  should_fail+0x5d8/0x740
[   69.958224][  T324]  ? fat_alloc_inode+0x19/0x90
[   69.962976][  T324]  should_failslab+0x5/0x20
[   69.967537][  T324]  kmem_cache_alloc+0x36/0x290
[   69.972294][  T324]  ? fat_get_block_bmap+0x330/0x330
[   69.977457][  T324]  fat_alloc_inode+0x19/0x90
[   69.982035][  T324]  ? fat_get_block_bmap+0x330/0x330
[   69.987198][  T324]  new_inode_pseudo+0x61/0x220
[   69.991926][  T324]  new_inode+0x25/0x1d0
[   69.996047][  T324]  ? _raw_spin_lock+0x6c/0x170
[   70.000776][  T324]  fat_build_inode+0x1e8/0x3e0
[   70.005506][  T324]  vfat_mkdir+0x212/0x360
[   70.009868][  T324]  vfs_mkdir+0x416/0x5f0
[   70.014203][  T324]  open_or_create_special_dir+0xba/0x150
[   70.019808][  T324]  incfs_mount_fs+0x366/0x770
[   70.024542][  T324]  legacy_get_tree+0xde/0x170
[   70.029189][  T324]  ? incfs_unlink+0x80/0x80
[   70.033660][  T324]  vfs_get_tree+0x83/0x260
[   70.038044][  T324]  do_mount+0x17be/0x2390
[   70.042352][  T324]  ? copy_mount_options+0xc9/0x300
[   70.047432][  T324]  ksys_mount+0xc2/0xf0
[   70.051556][  T324]  __x64_sys_mount+0xb1/0xc0
[   70.056113][  T324]  do_syscall_64+0xcb/0x1e0
[   70.061379][  T324]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   70.067255][  T324] RIP: 0033:0x7fd69fe6dfd9
[   70.071651][  T324] 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
[   70.091230][  T324] RSP: 002b:00007ffdf88dfae8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[   70.099623][  T324] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fd69fe6dfd9
[   70.107568][  T324] RDX: 0000000020000340 RSI: 0000000020000000 RDI: 00000000200002c0
[   70.115505][  T324] RBP: 00007ffdf88dfb10 R08: 0000000000000000 R09: 00007ffdf88dfb20
[   70.123444][  T324] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000003
[   70.131960][  T324] R13: 00007ffdf88dfb50 R14: 00007ffdf88dfb30 R15: 000000000000000c
[   70.140642][  T324] incfs: Can't find or create .index dir in ./file0
[   70.149171][  T298] BUG: Dentry ffff8881e728edd0{i=0,n=.index}  still in use (1) [unmount of vfat loop0]
[   70.158841][  T298] ------------[ cut here ]------------
[   70.164276][  T298] WARNING: CPU: 1 PID: 298 at fs/dcache.c:1597 umount_check+0x179/0x1c0
[   70.172559][  T298] Modules linked in:
[   70.176427][  T298] CPU: 1 PID: 298 Comm: syz-executor542 Tainted: G        W         5.4.147-syzkaller-00036-geb4a5a5dbd5b #0
[   70.187922][  T298] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   70.198070][  T298] RIP: 0010:umount_check+0x179/0x1c0
[   70.203322][  T298] Code: ff 4c 8b 0b 48 81 c5 20 04 00 00 48 c7 c7 e0 14 c9 84 4c 89 fe 4c 89 f2 4c 89 f9 45 89 e8 31 c0 55 e8 b7 0e b3 ff 48 83 c4 08 <0f> 0b e9 fd fe ff ff 89 e9 80 e1 07 80 c1 03 38 c1 0f 8c d4 fe ff
[   70.223681][  T298] RSP: 0018:ffff8881de517cc0 EFLAGS: 00010296
[   70.229715][  T298] RAX: 0000000000000054 RBX: ffffffff85dc6240 RCX: c723b34d2c94fd00
[   70.245387][  T298] RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000000
[   70.253333][  T298] RBP: ffff8881de6a9420 R08: ffffffff814b2a4c R09: ffffed103ede9608
[   70.261279][  T298] R10: ffffed103ede9608 R11: 0000000000000000 R12: dffffc0000000000
[   70.269262][  T298] R13: 0000000000000001 R14: 0000000000000000 R15: ffff8881e728edd0
[   70.277247][  T298] FS:  0000555556809300(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000
[   70.286188][  T298] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   70.292789][  T298] CR2: 0000555556812628 CR3: 00000001e0b04000 CR4: 00000000003406e0
[   70.300911][  T298] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   70.308853][  T298] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   70.317073][  T298] Call Trace:
[   70.320353][  T298]  d_walk+0x2d9/0x540
[   70.324448][  T298]  ? __d_free+0x20/0x20
[   70.328691][  T298]  shrink_dcache_for_umount+0x8a/0x1a0
[   70.334318][  T298]  generic_shutdown_super+0x63/0x2a0
[   70.339573][  T298]  kill_block_super+0x79/0xd0
[   70.344225][  T298]  deactivate_locked_super+0xaf/0x100
[   70.349567][  T298]  deactivate_super+0x168/0x210
[   70.354385][  T298]  cleanup_mnt+0x432/0x4e0
[   70.358770][  T298]  task_work_run+0x186/0x1b0
[   70.363326][  T298]  prepare_exit_to_usermode+0x2b0/0x310
[   70.368843][  T298]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   70.374716][  T298] RIP: 0033:0x7fd69fe6f377
[   70.379097][  T298] 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
[   70.398671][  T298] RSP: 002b:00007ffdf88de9f8 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6
[   70.407072][  T298] RAX: 0000000000000000 RBX: 0000000000011100 RCX: 00007fd69fe6f377
[   70.415022][  T298] RDX: 00007ffdf88deaba RSI: 0000000000000002 RDI: 00007ffdf88deab0
[   70.422973][  T298] RBP: 00007ffdf88deab0 R08: 00000000ffffffff R09: 00007ffdf88de890
[   70.430923][  T298] R10: 000055555680a633 R11: 0000000000000202 R12: 00007ffdf88dfb30
[   70.438864][  T298] R13: 000055555680a5f0 R14: 00007ffdf88dea20 R15: 000000000000000d
[   70.446810][  T298] ---[ end trace 2c212115904b10c0 ]---
[   70.453955][  T298] VFS: Busy inodes after unmount of loop0. Self-destruct in 5 seconds.  Have a nice day...
executing program
[   70.525405][  T326] FAULT_INJECTION: forcing a failure.
[   70.525405][  T326] name failslab, interval 1, probability 0, space 0, times 0
[   70.538142][  T326] CPU: 0 PID: 326 Comm: syz-executor542 Tainted: G        W         5.4.147-syzkaller-00036-geb4a5a5dbd5b #0
[   70.549653][  T326] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   70.559685][  T326] Call Trace:
[   70.562959][  T326]  dump_stack+0x18e/0x1de
[   70.567260][  T326]  should_fail+0x5d8/0x740
[   70.571648][  T326]  ? mempool_alloc_slab+0x16/0x20
[   70.576643][  T326]  should_failslab+0x5/0x20
[   70.581115][  T326]  kmem_cache_alloc+0x36/0x290
[   70.585847][  T326]  mempool_alloc_slab+0x16/0x20
[   70.590680][  T326]  ? mempool_free+0x380/0x380
[   70.595342][  T326]  mempool_alloc+0xb0/0x5a0
[   70.599828][  T326]  ? retint_kernel+0x1b/0x1b
[   70.604386][  T326]  bio_alloc_bioset+0x192/0x5a0
[   70.609209][  T326]  submit_bh_wbc+0x1ba/0x790
[   70.613799][  T326]  __bread_gfp+0x181/0x310
[   70.618306][  T326]  fat12_ent_bread+0x152/0x4f0
[   70.623041][  T326]  ? fat12_ent_blocknr+0xa8/0x1e0
[   70.628035][  T326]  ? fat12_ent_set_ptr+0x250/0x250
[   70.633127][  T326]  fat_alloc_clusters+0x6ab/0x13c0
[   70.638455][  T326]  fat_alloc_new_dir+0x118/0xc90
[   70.643501][  T326]  ? avc_has_perm+0x7c/0x1c0
[   70.648066][  T326]  vfat_mkdir+0xe7/0x360
[   70.652393][  T326]  vfs_mkdir+0x416/0x5f0
[   70.656614][  T326]  open_or_create_special_dir+0xba/0x150
[   70.662218][  T326]  incfs_mount_fs+0x366/0x770
[   70.666876][  T326]  legacy_get_tree+0xde/0x170
[   70.671523][  T326]  ? incfs_unlink+0x80/0x80
[   70.676008][  T326]  vfs_get_tree+0x83/0x260
[   70.680408][  T326]  do_mount+0x17be/0x2390
[   70.684709][  T326]  ? copy_mount_options+0xc9/0x300
[   70.689789][  T326]  ksys_mount+0xc2/0xf0
[   70.694091][  T326]  __x64_sys_mount+0xb1/0xc0
[   70.698747][  T326]  do_syscall_64+0xcb/0x1e0
[   70.703356][  T326]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   70.709311][  T326] RIP: 0033:0x7fd69fe6dfd9
[   70.713701][  T326] 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
[   70.733474][  T326] RSP: 002b:00007ffdf88dfae8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[   70.741857][  T326] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fd69fe6dfd9
[   70.749852][  T326] RDX: 0000000020000340 RSI: 0000000020000000 RDI: 00000000200002c0
[   70.757803][  T326] RBP: 00007ffdf88dfb10 R08: 0000000000000000 R09: 00007ffdf88dfb20
[   70.765766][  T326] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000003
[   70.773709][  T326] R13: 00007ffdf88dfb50 R14: 00007ffdf88dfb30 R15: 000000000000000d
[   70.782288][  T326] incfs: ino conflict with backing FS 1
executing program
[   70.873248][  T328] FAULT_INJECTION: forcing a failure.
[   70.873248][  T328] name failslab, interval 1, probability 0, space 0, times 0
[   70.885969][  T328] CPU: 0 PID: 328 Comm: syz-executor542 Tainted: G        W         5.4.147-syzkaller-00036-geb4a5a5dbd5b #0
[   70.897484][  T328] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   70.907523][  T328] Call Trace:
[   70.910790][  T328]  dump_stack+0x18e/0x1de
[   70.915201][  T328]  should_fail+0x5d8/0x740
[   70.919587][  T328]  ? __xa_set_mark+0x3ed/0x4c0
[   70.924404][  T328]  ? vfat_add_entry+0x148/0x3160
[   70.929326][  T328]  should_failslab+0x5/0x20
[   70.933899][  T328]  kmem_cache_alloc_trace+0x39/0x2b0
[   70.939154][  T328]  ? __brelse+0x54/0x90
[   70.943282][  T328]  vfat_add_entry+0x148/0x3160
[   70.948014][  T328]  ? mark_buffer_dirty_inode+0x22b/0x300
[   70.953623][  T328]  ? fat_alloc_new_dir+0x7b7/0xc90
[   70.958706][  T328]  ? avc_has_perm+0x7c/0x1c0
[   70.963267][  T328]  vfat_mkdir+0x11f/0x360
[   70.967575][  T328]  vfs_mkdir+0x416/0x5f0
[   70.971788][  T328]  open_or_create_special_dir+0xba/0x150
[   70.977387][  T328]  incfs_mount_fs+0x366/0x770
[   70.982035][  T328]  legacy_get_tree+0xde/0x170
[   70.986681][  T328]  ? incfs_unlink+0x80/0x80
[   70.991166][  T328]  vfs_get_tree+0x83/0x260
[   70.995559][  T328]  do_mount+0x17be/0x2390
[   70.999864][  T328]  ? copy_mount_options+0xc9/0x300
[   71.005028][  T328]  ksys_mount+0xc2/0xf0
[   71.009149][  T328]  __x64_sys_mount+0xb1/0xc0
[   71.013708][  T328]  do_syscall_64+0xcb/0x1e0
[   71.018189][  T328]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   71.024134][  T328] RIP: 0033:0x7fd69fe6dfd9
[   71.028517][  T328] 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
[   71.048230][  T328] RSP: 002b:00007ffdf88dfae8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[   71.056624][  T328] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fd69fe6dfd9
[   71.064577][  T328] RDX: 0000000020000340 RSI: 0000000020000000 RDI: 00000000200002c0
[   71.072519][  T328] RBP: 00007ffdf88dfb10 R08: 0000000000000000 R09: 00007ffdf88dfb20
[   71.080485][  T328] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000003
[   71.088425][  T328] R13: 00007ffdf88dfb50 R14: 00007ffdf88dfb30 R15: 000000000000000e
[   71.096455][  T328] incfs: Can't find or create .index dir in ./file0
[   71.104677][  T298] BUG: Dentry ffff8881e7291cc0{i=0,n=.index}  still in use (1) [unmount of vfat loop0]
[   71.114401][  T298] ------------[ cut here ]------------
[   71.119839][  T298] WARNING: CPU: 1 PID: 298 at fs/dcache.c:1597 umount_check+0x179/0x1c0
[   71.128128][  T298] Modules linked in:
[   71.132197][  T298] CPU: 1 PID: 298 Comm: syz-executor542 Tainted: G        W         5.4.147-syzkaller-00036-geb4a5a5dbd5b #0
[   71.144014][  T298] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   71.154058][  T298] RIP: 0010:umount_check+0x179/0x1c0
[   71.159331][  T298] Code: ff 4c 8b 0b 48 81 c5 20 04 00 00 48 c7 c7 e0 14 c9 84 4c 89 fe 4c 89 f2 4c 89 f9 45 89 e8 31 c0 55 e8 b7 0e b3 ff 48 83 c4 08 <0f> 0b e9 fd fe ff ff 89 e9 80 e1 07 80 c1 03 38 c1 0f 8c d4 fe ff
[   71.178908][  T298] RSP: 0018:ffff8881de517cc0 EFLAGS: 00010296
[   71.184942][  T298] RAX: 0000000000000054 RBX: ffffffff85dc6240 RCX: c723b34d2c94fd00
[   71.192881][  T298] RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000000
[   71.200821][  T298] RBP: ffff8881dd224420 R08: ffffffff814b2a4c R09: ffffed103ede9608
[   71.208774][  T298] R10: ffffed103ede9608 R11: 0000000000000000 R12: dffffc0000000000
[   71.216739][  T298] R13: 0000000000000001 R14: 0000000000000000 R15: ffff8881e7291cc0
[   71.224685][  T298] FS:  0000555556809300(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000
[   71.233579][  T298] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   71.240125][  T298] CR2: 0000555556812628 CR3: 00000001e0b04000 CR4: 00000000003406e0
[   71.248077][  T298] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   71.256110][  T298] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   71.264096][  T298] Call Trace:
[   71.267364][  T298]  d_walk+0x2d9/0x540
[   71.271318][  T298]  ? __d_free+0x20/0x20
[   71.275438][  T298]  shrink_dcache_for_umount+0x8a/0x1a0
[   71.280866][  T298]  generic_shutdown_super+0x63/0x2a0
[   71.286213][  T298]  kill_block_super+0x79/0xd0
[   71.290979][  T298]  deactivate_locked_super+0xaf/0x100
[   71.296336][  T298]  deactivate_super+0x168/0x210
[   71.301170][  T298]  cleanup_mnt+0x432/0x4e0
[   71.305566][  T298]  task_work_run+0x186/0x1b0
[   71.310126][  T298]  prepare_exit_to_usermode+0x2b0/0x310
[   71.315652][  T298]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   71.321509][  T298] RIP: 0033:0x7fd69fe6f377
[   71.325890][  T298] 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
[   71.345467][  T298] RSP: 002b:00007ffdf88de9f8 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6
[   71.353864][  T298] RAX: 0000000000000000 RBX: 00000000000114c2 RCX: 00007fd69fe6f377
[   71.361803][  T298] RDX: 00007ffdf88deaba RSI: 0000000000000002 RDI: 00007ffdf88deab0
executing program
[   71.369740][  T298] RBP: 00007ffdf88deab0 R08: 00000000ffffffff R09: 00007ffdf88de890
[   71.377686][  T298] R10: 000055555680a633 R11: 0000000000000202 R12: 00007ffdf88dfb30
[   71.385622][  T298] R13: 000055555680a5f0 R14: 00007ffdf88dea20 R15: 000000000000000f
[   71.393563][  T298] ---[ end trace 2c212115904b10c1 ]---
[   71.399806][  T298] VFS: Busy inodes after unmount of loop0. Self-destruct in 5 seconds.  Have a nice day...
[   71.443920][  T330] FAULT_INJECTION: forcing a failure.
[   71.443920][  T330] name failslab, interval 1, probability 0, space 0, times 0
[   71.456806][  T330] CPU: 1 PID: 330 Comm: syz-executor542 Tainted: G        W         5.4.147-syzkaller-00036-geb4a5a5dbd5b #0
[   71.468379][  T330] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   71.478402][  T330] Call Trace:
[   71.481672][  T330]  dump_stack+0x18e/0x1de
[   71.485979][  T330]  should_fail+0x5d8/0x740
[   71.490364][  T330]  ? xas_create+0x519/0x13b0
[   71.494951][  T330]  should_failslab+0x5/0x20
[   71.499428][  T330]  kmem_cache_alloc+0x36/0x290
[   71.504165][  T330]  ? stack_trace_save+0xc4/0x160
[   71.509082][  T330]  xas_create+0x519/0x13b0
[   71.513467][  T330]  ? parse_options+0x760/0x770
[   71.518196][  T330]  xas_store+0x94/0x1610
[   71.522405][  T330]  ? __set_page_owner+0x1e5/0x200
[   71.527395][  T330]  ? preempt_count_add+0x66/0x130
[   71.532386][  T330]  ? xas_find_conflict+0x75d/0x8f0
[   71.537468][  T330]  ? _raw_spin_lock_irq+0x6d/0x170
[   71.542547][  T330]  __add_to_page_cache_locked+0x3a6/0x830
[   71.548233][  T330]  ? workingset_activation+0x150/0x150
[   71.553666][  T330]  add_to_page_cache_lru+0xc7/0x220
[   71.558847][  T330]  pagecache_get_page+0x617/0x8c0
[   71.563838][  T330]  __getblk_gfp+0x204/0x750
[   71.568328][  T330]  fat_alloc_new_dir+0x1eb/0xc90
[   71.573354][  T330]  ? avc_has_perm+0x7c/0x1c0
[   71.577962][  T330]  vfat_mkdir+0xe7/0x360
[   71.582221][  T330]  vfs_mkdir+0x416/0x5f0
[   71.586433][  T330]  open_or_create_special_dir+0xba/0x150
[   71.592032][  T330]  incfs_mount_fs+0x366/0x770
[   71.596773][  T330]  legacy_get_tree+0xde/0x170
[   71.601418][  T330]  ? incfs_unlink+0x80/0x80
[   71.605910][  T330]  vfs_get_tree+0x83/0x260
[   71.610312][  T330]  do_mount+0x17be/0x2390
[   71.614622][  T330]  ? copy_mount_options+0xc9/0x300
[   71.619704][  T330]  ksys_mount+0xc2/0xf0
[   71.623843][  T330]  __x64_sys_mount+0xb1/0xc0
[   71.628468][  T330]  do_syscall_64+0xcb/0x1e0
[   71.632947][  T330]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   71.638819][  T330] RIP: 0033:0x7fd69fe6dfd9
[   71.643209][  T330] 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
[   71.662790][  T330] RSP: 002b:00007ffdf88dfae8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[   71.671169][  T330] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fd69fe6dfd9
[   71.679142][  T330] RDX: 0000000020000340 RSI: 0000000020000000 RDI: 00000000200002c0
[   71.687098][  T330] RBP: 00007ffdf88dfb10 R08: 0000000000000000 R09: 00007ffdf88dfb20
[   71.695050][  T330] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000003
[   71.702998][  T330] R13: 00007ffdf88dfb50 R14: 00007ffdf88dfb30 R15: 000000000000000f
[   71.712662][  T330] incfs: ino conflict with backing FS 1
executing program
[   71.773466][  T332] FAULT_INJECTION: forcing a failure.
[   71.773466][  T332] name failslab, interval 1, probability 0, space 0, times 0
[   71.786097][  T332] CPU: 1 PID: 332 Comm: syz-executor542 Tainted: G        W         5.4.147-syzkaller-00036-geb4a5a5dbd5b #0
[   71.797607][  T332] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   71.807765][  T332] Call Trace:
[   71.811033][  T332]  dump_stack+0x18e/0x1de
[   71.815336][  T332]  should_fail+0x5d8/0x740
[   71.819722][  T332]  ? vfat_add_entry+0x286/0x3160
[   71.824627][  T332]  should_failslab+0x5/0x20
[   71.829099][  T332]  kmem_cache_alloc+0x36/0x290
[   71.833835][  T332]  vfat_add_entry+0x286/0x3160
[   71.838571][  T332]  ? mark_buffer_dirty_inode+0x22b/0x300
[   71.844169][  T332]  ? fat_alloc_new_dir+0x7b7/0xc90
[   71.849249][  T332]  ? avc_has_perm+0x7c/0x1c0
[   71.853808][  T332]  vfat_mkdir+0x11f/0x360
[   71.858108][  T332]  vfs_mkdir+0x416/0x5f0
[   71.862319][  T332]  open_or_create_special_dir+0xba/0x150
[   71.868708][  T332]  incfs_mount_fs+0x366/0x770
[   71.873365][  T332]  legacy_get_tree+0xde/0x170
[   71.878115][  T332]  ? incfs_unlink+0x80/0x80
[   71.882595][  T332]  vfs_get_tree+0x83/0x260
[   71.888302][  T332]  do_mount+0x17be/0x2390
[   71.892603][  T332]  ? copy_mount_options+0xc9/0x300
[   71.897852][  T332]  ksys_mount+0xc2/0xf0
[   71.902091][  T332]  __x64_sys_mount+0xb1/0xc0
[   71.906782][  T332]  do_syscall_64+0xcb/0x1e0
[   71.911260][  T332]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   71.917389][  T332] RIP: 0033:0x7fd69fe6dfd9
[   71.921781][  T332] 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
[   71.941509][  T332] RSP: 002b:00007ffdf88dfae8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[   71.949901][  T332] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fd69fe6dfd9
[   71.957842][  T332] RDX: 0000000020000340 RSI: 0000000020000000 RDI: 00000000200002c0
[   71.965782][  T332] RBP: 00007ffdf88dfb10 R08: 0000000000000000 R09: 00007ffdf88dfb20
[   71.973722][  T332] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000003
[   71.981667][  T332] R13: 00007ffdf88dfb50 R14: 00007ffdf88dfb30 R15: 0000000000000010
[   71.989704][  T332] incfs: Can't find or create .index dir in ./file0
[   71.997089][  T298] BUG: Dentry ffff8881e72f5990{i=0,n=.index}  still in use (1) [unmount of vfat loop0]
[   72.007229][  T298] ------------[ cut here ]------------
[   72.012671][  T298] WARNING: CPU: 0 PID: 298 at fs/dcache.c:1597 umount_check+0x179/0x1c0
[   72.020971][  T298] Modules linked in:
[   72.024859][  T298] CPU: 0 PID: 298 Comm: syz-executor542 Tainted: G        W         5.4.147-syzkaller-00036-geb4a5a5dbd5b #0
[   72.036378][  T298] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   72.046441][  T298] RIP: 0010:umount_check+0x179/0x1c0
[   72.051701][  T298] Code: ff 4c 8b 0b 48 81 c5 20 04 00 00 48 c7 c7 e0 14 c9 84 4c 89 fe 4c 89 f2 4c 89 f9 45 89 e8 31 c0 55 e8 b7 0e b3 ff 48 83 c4 08 <0f> 0b e9 fd fe ff ff 89 e9 80 e1 07 80 c1 03 38 c1 0f 8c d4 fe ff
[   72.071294][  T298] RSP: 0018:ffff8881de517cc0 EFLAGS: 00010296
[   72.077331][  T298] RAX: 0000000000000054 RBX: ffffffff85dc6240 RCX: c723b34d2c94fd00
[   72.085278][  T298] RDX: 0000000000000000 RSI: 0000000080000002 RDI: 0000000000000000
[   72.093247][  T298] RBP: ffff8881dd671420 R08: ffffffff814b2a4c R09: ffffed103edc9608
[   72.101297][  T298] R10: ffffed103edc9608 R11: 0000000000000000 R12: dffffc0000000000
[   72.109325][  T298] R13: 0000000000000001 R14: 0000000000000000 R15: ffff8881e72f5990
[   72.117377][  T298] FS:  0000555556809300(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
[   72.126282][  T298] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   72.132836][  T298] CR2: 0000555556812628 CR3: 00000001e0b04000 CR4: 00000000003406f0
[   72.140814][  T298] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   72.148776][  T298] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   72.156799][  T298] Call Trace:
[   72.160087][  T298]  d_walk+0x2d9/0x540
[   72.164046][  T298]  ? __d_free+0x20/0x20
[   72.168177][  T298]  shrink_dcache_for_umount+0x8a/0x1a0
[   72.173631][  T298]  generic_shutdown_super+0x63/0x2a0
[   72.178891][  T298]  kill_block_super+0x79/0xd0
[   72.183541][  T298]  deactivate_locked_super+0xaf/0x100
[   72.188886][  T298]  deactivate_super+0x168/0x210
[   72.193813][  T298]  cleanup_mnt+0x432/0x4e0
[   72.198209][  T298]  task_work_run+0x186/0x1b0
[   72.202877][  T298]  prepare_exit_to_usermode+0x2b0/0x310
[   72.208395][  T298]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   72.214266][  T298] RIP: 0033:0x7fd69fe6f377
[   72.218810][  T298] 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
[   72.238515][  T298] RSP: 002b:00007ffdf88de9f8 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6
[   72.247133][  T298] RAX: 0000000000000000 RBX: 0000000000011846 RCX: 00007fd69fe6f377
[   72.255114][  T298] RDX: 00007ffdf88deaba RSI: 0000000000000002 RDI: 00007ffdf88deab0
[   72.263082][  T298] RBP: 00007ffdf88deab0 R08: 00000000ffffffff R09: 00007ffdf88de890
executing program
[   72.271061][  T298] R10: 000055555680a633 R11: 0000000000000202 R12: 00007ffdf88dfb30
[   72.279004][  T298] R13: 000055555680a5f0 R14: 00007ffdf88dea20 R15: 0000000000000011
[   72.286958][  T298] ---[ end trace 2c212115904b10c2 ]---
[   72.293185][  T298] VFS: Busy inodes after unmount of loop0. Self-destruct in 5 seconds.  Have a nice day...
[   72.354328][  T334] FAULT_INJECTION: forcing a failure.
[   72.354328][  T334] name fail_page_alloc, interval 1, probability 0, space 0, times 0
[   72.367557][  T334] CPU: 1 PID: 334 Comm: syz-executor542 Tainted: G        W         5.4.147-syzkaller-00036-geb4a5a5dbd5b #0
[   72.379163][  T334] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   72.389189][  T334] Call Trace:
[   72.392556][  T334]  dump_stack+0x18e/0x1de
[   72.396879][  T334]  should_fail+0x5d8/0x740
[   72.401270][  T334]  __alloc_pages_nodemask+0x12e/0x740
[   72.406704][  T334]  alloc_slab_page+0x39/0x3e0
[   72.411366][  T334]  new_slab+0x97/0x460
[   72.415854][  T334]  ? check_preemption_disabled+0x51/0x2c0
[   72.421630][  T334]  ___slab_alloc+0x330/0x4c0
[   72.426219][  T334]  ? should_fail+0x13b/0x740
[   72.431051][  T334]  ? check_preemption_disabled+0xde/0x2c0
[   72.436740][  T334]  ? __xa_set_mark+0x3ed/0x4c0
[   72.441492][  T334]  ? vfat_add_entry+0x148/0x3160
[   72.446415][  T334]  kmem_cache_alloc_trace+0x199/0x2b0
[   72.451774][  T334]  ? vfat_add_entry+0x148/0x3160
[   72.456704][  T334]  vfat_add_entry+0x148/0x3160
[   72.461444][  T334]  ? mark_buffer_dirty_inode+0x22b/0x300
[   72.467048][  T334]  ? fat_alloc_new_dir+0x7b7/0xc90
[   72.472153][  T334]  ? avc_has_perm+0x7c/0x1c0
[   72.476726][  T334]  vfat_mkdir+0x11f/0x360
[   72.481149][  T334]  vfs_mkdir+0x416/0x5f0
[   72.485379][  T334]  open_or_create_special_dir+0xba/0x150
[   72.491006][  T334]  incfs_mount_fs+0x366/0x770
[   72.495672][  T334]  legacy_get_tree+0xde/0x170
[   72.500324][  T334]  ? incfs_unlink+0x80/0x80
[   72.504818][  T334]  vfs_get_tree+0x83/0x260
[   72.509203][  T334]  do_mount+0x17be/0x2390
[   72.513517][  T334]  ? copy_mount_options+0xc9/0x300
[   72.518609][  T334]  ksys_mount+0xc2/0xf0
[   72.522784][  T334]  __x64_sys_mount+0xb1/0xc0
[   72.527548][  T334]  do_syscall_64+0xcb/0x1e0
[   72.532230][  T334]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   72.538092][  T334] RIP: 0033:0x7fd69fe6dfd9
[   72.542474][  T334] 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
[   72.562050][  T334] RSP: 002b:00007ffdf88dfae8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[   72.570437][  T334] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fd69fe6dfd9
[   72.578496][  T334] RDX: 0000000020000340 RSI: 0000000020000000 RDI: 00000000200002c0
[   72.586444][  T334] RBP: 00007ffdf88dfb10 R08: 0000000000000000 R09: 00007ffdf88dfb20
[   72.594388][  T334] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000003
[   72.602575][  T334] R13: 00007ffdf88dfb50 R14: 00007ffdf88dfb30 R15: 0000000000000011
[   72.610921][  T334] incfs: ino conflict with backing FS 1
[   72.613023][   T22] audit: type=1400 audit(1635026616.859:83): avc:  denied  { remove_name } for  pid=137 comm="syslogd" name="messages" dev="tmpfs" ino=1022 scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   72.639751][   T22] audit: type=1400 audit(1635026616.859:84): avc:  denied  { rename } for  pid=137 comm="syslogd" name="messages" dev="tmpfs" ino=1022 scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:tmpfs_t tclass=file permissive=1
executing program
[   72.741231][  T336] FAULT_INJECTION: forcing a failure.
[   72.741231][  T336] name failslab, interval 1, probability 0, space 0, times 0
[   72.754008][  T336] CPU: 0 PID: 336 Comm: syz-executor542 Tainted: G        W         5.4.147-syzkaller-00036-geb4a5a5dbd5b #0
[   72.765523][  T336] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   72.775550][  T336] Call Trace:
[   72.778819][  T336]  dump_stack+0x18e/0x1de
[   72.783123][  T336]  should_fail+0x5d8/0x740
[   72.787511][  T336]  ? __xa_set_mark+0x3ed/0x4c0
[   72.792247][  T336]  ? vfat_add_entry+0x148/0x3160
[   72.797330][  T336]  should_failslab+0x5/0x20
[   72.801805][  T336]  kmem_cache_alloc_trace+0x39/0x2b0
[   72.807058][  T336]  ? __brelse+0x54/0x90
[   72.811191][  T336]  vfat_add_entry+0x148/0x3160
[   72.815922][  T336]  ? mark_buffer_dirty_inode+0x22b/0x300
[   72.821536][  T336]  ? fat_alloc_new_dir+0x7b7/0xc90
[   72.826630][  T336]  ? avc_has_perm+0x7c/0x1c0
[   72.831209][  T336]  vfat_mkdir+0x11f/0x360
[   72.835515][  T336]  vfs_mkdir+0x416/0x5f0
[   72.839852][  T336]  open_or_create_special_dir+0xba/0x150
[   72.845471][  T336]  incfs_mount_fs+0x366/0x770
[   72.850146][  T336]  legacy_get_tree+0xde/0x170
[   72.854823][  T336]  ? incfs_unlink+0x80/0x80
[   72.859313][  T336]  vfs_get_tree+0x83/0x260
[   72.863716][  T336]  do_mount+0x17be/0x2390
[   72.868016][  T336]  ? copy_mount_options+0xc9/0x300
[   72.873185][  T336]  ksys_mount+0xc2/0xf0
[   72.877314][  T336]  __x64_sys_mount+0xb1/0xc0
[   72.881896][  T336]  do_syscall_64+0xcb/0x1e0
[   72.886374][  T336]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   72.895452][  T336] RIP: 0033:0x7fd69fe6dfd9
[   72.899860][  T336] 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
[   72.919603][  T336] RSP: 002b:00007ffdf88dfae8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[   72.928010][  T336] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fd69fe6dfd9
[   72.935957][  T336] RDX: 0000000020000340 RSI: 0000000020000000 RDI: 00000000200002c0
[   72.943908][  T336] RBP: 00007ffdf88dfb10 R08: 0000000000000000 R09: 00007ffdf88dfb20
[   72.951949][  T336] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000003
[   72.959950][  T336] R13: 00007ffdf88dfb50 R14: 00007ffdf88dfb30 R15: 0000000000000012
[   72.968035][  T336] incfs: Can't find or create .index dir in ./file0
[   72.976058][  T298] BUG: Dentry ffff8881e729aaa0{i=0,n=.index}  still in use (1) [unmount of vfat loop0]
[   72.985771][  T298] ------------[ cut here ]------------
[   72.991218][  T298] WARNING: CPU: 0 PID: 298 at fs/dcache.c:1597 umount_check+0x179/0x1c0
[   72.999504][  T298] Modules linked in:
[   73.003368][  T298] CPU: 0 PID: 298 Comm: syz-executor542 Tainted: G        W         5.4.147-syzkaller-00036-geb4a5a5dbd5b #0
[   73.014880][  T298] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   73.024924][  T298] RIP: 0010:umount_check+0x179/0x1c0
[   73.030221][  T298] Code: ff 4c 8b 0b 48 81 c5 20 04 00 00 48 c7 c7 e0 14 c9 84 4c 89 fe 4c 89 f2 4c 89 f9 45 89 e8 31 c0 55 e8 b7 0e b3 ff 48 83 c4 08 <0f> 0b e9 fd fe ff ff 89 e9 80 e1 07 80 c1 03 38 c1 0f 8c d4 fe ff
[   73.050039][  T298] RSP: 0018:ffff8881de517cc0 EFLAGS: 00010296
[   73.056073][  T298] RAX: 0000000000000054 RBX: ffffffff85dc6240 RCX: c723b34d2c94fd00
[   73.064015][  T298] RDX: 0000000000000000 RSI: 0000000080000002 RDI: 0000000000000000
[   73.072217][  T298] RBP: ffff8881dd226420 R08: ffffffff814b2a4c R09: ffffed103bca2f51
[   73.080156][  T298] R10: ffffed103bca2f51 R11: 0000000000000000 R12: dffffc0000000000
[   73.088094][  T298] R13: 0000000000000001 R14: 0000000000000000 R15: ffff8881e729aaa0
[   73.096176][  T298] FS:  0000555556809300(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
[   73.105084][  T298] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   73.111638][  T298] CR2: 0000555556812628 CR3: 00000001e0b04000 CR4: 00000000003406f0
[   73.119581][  T298] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   73.127522][  T298] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   73.135461][  T298] Call Trace:
[   73.138741][  T298]  d_walk+0x2d9/0x540
[   73.142692][  T298]  ? __d_free+0x20/0x20
[   73.146816][  T298]  shrink_dcache_for_umount+0x8a/0x1a0
[   73.152241][  T298]  generic_shutdown_super+0x63/0x2a0
[   73.157502][  T298]  kill_block_super+0x79/0xd0
[   73.162148][  T298]  deactivate_locked_super+0xaf/0x100
[   73.167486][  T298]  deactivate_super+0x168/0x210
[   73.172303][  T298]  cleanup_mnt+0x432/0x4e0
[   73.176687][  T298]  task_work_run+0x186/0x1b0
[   73.181252][  T298]  prepare_exit_to_usermode+0x2b0/0x310
[   73.186765][  T298]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   73.192624][  T298] RIP: 0033:0x7fd69fe6f377
[   73.197008][  T298] 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
[   73.216952][  T298] RSP: 002b:00007ffdf88de9f8 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6
[   73.225515][  T298] RAX: 0000000000000000 RBX: 0000000000011c0e RCX: 00007fd69fe6f377
[   73.233468][  T298] RDX: 00007ffdf88deaba RSI: 0000000000000002 RDI: 00007ffdf88deab0
[   73.241408][  T298] RBP: 00007ffdf88deab0 R08: 00000000ffffffff R09: 00007ffdf88de890
[   73.249347][  T298] R10: 000055555680a633 R11: 0000000000000202 R12: 00007ffdf88dfb30
[   73.257383][  T298] R13: 000055555680a5f0 R14: 00007ffdf88dea20 R15: 0000000000000013
[   73.267320][  T298] ---[ end trace 2c212115904b10c3 ]---
[   73.273539][  T298] VFS: Busy inodes after unmount of loop0. Self-destruct in 5 seconds.  Have a nice day...
executing program
[   73.352704][  T338] FAULT_INJECTION: forcing a failure.
[   73.352704][  T338] name failslab, interval 1, probability 0, space 0, times 0
[   73.365358][  T338] CPU: 0 PID: 338 Comm: syz-executor542 Tainted: G        W         5.4.147-syzkaller-00036-geb4a5a5dbd5b #0
[   73.376921][  T338] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   73.386943][  T338] Call Trace:
[   73.390211][  T338]  dump_stack+0x18e/0x1de
[   73.394511][  T338]  should_fail+0x5d8/0x740
[   73.398896][  T338]  ? fat_alloc_inode+0x19/0x90
[   73.403624][  T338]  should_failslab+0x5/0x20
[   73.408093][  T338]  kmem_cache_alloc+0x36/0x290
[   73.412824][  T338]  ? fat_get_block_bmap+0x330/0x330
[   73.417988][  T338]  fat_alloc_inode+0x19/0x90
[   73.422553][  T338]  ? fat_get_block_bmap+0x330/0x330
[   73.427805][  T338]  new_inode_pseudo+0x61/0x220
[   73.432536][  T338]  new_inode+0x25/0x1d0
[   73.436658][  T338]  ? _raw_spin_lock+0x6c/0x170
[   73.441391][  T338]  fat_build_inode+0x1e8/0x3e0
[   73.446123][  T338]  vfat_mkdir+0x212/0x360
[   73.450421][  T338]  vfs_mkdir+0x416/0x5f0
[   73.454635][  T338]  open_or_create_special_dir+0xba/0x150
[   73.460233][  T338]  incfs_mount_fs+0x366/0x770
[   73.464880][  T338]  legacy_get_tree+0xde/0x170
[   73.469536][  T338]  ? incfs_unlink+0x80/0x80
[   73.474013][  T338]  vfs_get_tree+0x83/0x260
[   73.478396][  T338]  do_mount+0x17be/0x2390
[   73.482701][  T338]  ? copy_mount_options+0xc9/0x300
[   73.487778][  T338]  ksys_mount+0xc2/0xf0
[   73.491909][  T338]  __x64_sys_mount+0xb1/0xc0
[   73.496467][  T338]  do_syscall_64+0xcb/0x1e0
[   73.500935][  T338]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   73.506793][  T338] RIP: 0033:0x7fd69fe6dfd9
[   73.511175][  T338] 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
[   73.530749][  T338] RSP: 002b:00007ffdf88dfae8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[   73.539129][  T338] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fd69fe6dfd9
[   73.547203][  T338] RDX: 0000000020000340 RSI: 0000000020000000 RDI: 00000000200002c0
[   73.555151][  T338] RBP: 00007ffdf88dfb10 R08: 0000000000000000 R09: 00007ffdf88dfb20
[   73.563100][  T338] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000003
[   73.571044][  T338] R13: 00007ffdf88dfb50 R14: 00007ffdf88dfb30 R15: 0000000000000013
[   73.579090][  T338] incfs: Can't find or create .index dir in ./file0
[   73.586360][  T298] BUG: Dentry ffff8881e729cdd0{i=0,n=.index}  still in use (1) [unmount of vfat loop0]
[   73.596832][  T298] ------------[ cut here ]------------
[   73.602274][  T298] WARNING: CPU: 1 PID: 298 at fs/dcache.c:1597 umount_check+0x179/0x1c0
[   73.610558][  T298] Modules linked in:
[   73.614430][  T298] CPU: 1 PID: 298 Comm: syz-executor542 Tainted: G        W         5.4.147-syzkaller-00036-geb4a5a5dbd5b #0
[   73.625937][  T298] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   73.635972][  T298] RIP: 0010:umount_check+0x179/0x1c0
[   73.641223][  T298] Code: ff 4c 8b 0b 48 81 c5 20 04 00 00 48 c7 c7 e0 14 c9 84 4c 89 fe 4c 89 f2 4c 89 f9 45 89 e8 31 c0 55 e8 b7 0e b3 ff 48 83 c4 08 <0f> 0b e9 fd fe ff ff 89 e9 80 e1 07 80 c1 03 38 c1 0f 8c d4 fe ff
[   73.660796][  T298] RSP: 0018:ffff8881de517cc0 EFLAGS: 00010296
[   73.666827][  T298] RAX: 0000000000000054 RBX: ffffffff85dc6240 RCX: c723b34d2c94fd00
[   73.674782][  T298] RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000000
[   73.682722][  T298] RBP: ffff8881f33d5420 R08: ffffffff814b2a4c R09: ffffed103ede9608
[   73.690663][  T298] R10: ffffed103ede9608 R11: 0000000000000000 R12: dffffc0000000000
[   73.698600][  T298] R13: 0000000000000001 R14: 0000000000000000 R15: ffff8881e729cdd0
[   73.706537][  T298] FS:  0000555556809300(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000
[   73.715430][  T298] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   73.721981][  T298] CR2: 0000555556812628 CR3: 00000001e0b04000 CR4: 00000000003406e0
[   73.730357][  T298] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   73.739038][  T298] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   73.747035][  T298] Call Trace:
[   73.750320][  T298]  d_walk+0x2d9/0x540
[   73.754273][  T298]  ? __d_free+0x20/0x20
[   73.758399][  T298]  shrink_dcache_for_umount+0x8a/0x1a0
[   73.763827][  T298]  generic_shutdown_super+0x63/0x2a0
[   73.769080][  T298]  kill_block_super+0x79/0xd0
[   73.773724][  T298]  deactivate_locked_super+0xaf/0x100
[   73.779061][  T298]  deactivate_super+0x168/0x210
[   73.783888][  T298]  cleanup_mnt+0x432/0x4e0
[   73.788269][  T298]  task_work_run+0x186/0x1b0
[   73.792830][  T298]  prepare_exit_to_usermode+0x2b0/0x310
[   73.798398][  T298]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   73.804262][  T298] RIP: 0033:0x7fd69fe6f377
[   73.808646][  T298] 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
[   73.828219][  T298] RSP: 002b:00007ffdf88de9f8 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6
[   73.836604][  T298] RAX: 0000000000000000 RBX: 0000000000011e72 RCX: 00007fd69fe6f377
[   73.844558][  T298] RDX: 00007ffdf88deaba RSI: 0000000000000002 RDI: 00007ffdf88deab0
[   73.852518][  T298] RBP: 00007ffdf88deab0 R08: 00000000ffffffff R09: 00007ffdf88de890
[   73.860459][  T298] R10: 000055555680a633 R11: 0000000000000202 R12: 00007ffdf88dfb30
[   73.868401][  T298] R13: 000055555680a5f0 R14: 00007ffdf88dea20 R15: 0000000000000014
[   73.876361][  T298] ---[ end trace 2c212115904b10c4 ]---
[   73.882550][  T298] VFS: Busy inodes after unmount of loop0. Self-destruct in 5 seconds.  Have a nice day...
executing program
[   73.945793][  T340] FAULT_INJECTION: forcing a failure.
[   73.945793][  T340] name failslab, interval 1, probability 0, space 0, times 0
[   73.958492][  T340] CPU: 0 PID: 340 Comm: syz-executor542 Tainted: G        W         5.4.147-syzkaller-00036-geb4a5a5dbd5b #0
[   73.970400][  T340] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   73.980428][  T340] Call Trace:
[   73.983694][  T340]  dump_stack+0x18e/0x1de
[   73.987992][  T340]  should_fail+0x5d8/0x740
[   73.992387][  T340]  ? fat_alloc_inode+0x19/0x90
[   73.997204][  T340]  should_failslab+0x5/0x20
[   74.001678][  T340]  kmem_cache_alloc+0x36/0x290
[   74.006427][  T340]  ? fat_get_block_bmap+0x330/0x330
[   74.011592][  T340]  fat_alloc_inode+0x19/0x90
[   74.016156][  T340]  ? fat_get_block_bmap+0x330/0x330
[   74.021321][  T340]  new_inode_pseudo+0x61/0x220
[   74.026061][  T340]  new_inode+0x25/0x1d0
[   74.030630][  T340]  ? _raw_spin_lock+0x6c/0x170
[   74.035361][  T340]  fat_build_inode+0x1e8/0x3e0
[   74.040091][  T340]  vfat_mkdir+0x212/0x360
[   74.044560][  T340]  vfs_mkdir+0x416/0x5f0
[   74.048784][  T340]  open_or_create_special_dir+0xba/0x150
[   74.054382][  T340]  incfs_mount_fs+0x366/0x770
[   74.059027][  T340]  legacy_get_tree+0xde/0x170
[   74.063667][  T340]  ? incfs_unlink+0x80/0x80
[   74.068134][  T340]  vfs_get_tree+0x83/0x260
[   74.072516][  T340]  do_mount+0x17be/0x2390
[   74.076812][  T340]  ? copy_mount_options+0xc9/0x300
[   74.081887][  T340]  ksys_mount+0xc2/0xf0
[   74.086008][  T340]  __x64_sys_mount+0xb1/0xc0
[   74.090567][  T340]  do_syscall_64+0xcb/0x1e0
[   74.095037][  T340]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   74.100897][  T340] RIP: 0033:0x7fd69fe6dfd9
[   74.105277][  T340] 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
[   74.124844][  T340] RSP: 002b:00007ffdf88dfae8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[   74.133228][  T340] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fd69fe6dfd9
[   74.141174][  T340] RDX: 0000000020000340 RSI: 0000000020000000 RDI: 00000000200002c0
[   74.149114][  T340] RBP: 00007ffdf88dfb10 R08: 0000000000000000 R09: 00007ffdf88dfb20
[   74.157056][  T340] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000003
[   74.164998][  T340] R13: 00007ffdf88dfb50 R14: 00007ffdf88dfb30 R15: 0000000000000014
[   74.173029][  T340] incfs: Can't find or create .index dir in ./file0
[   74.180982][  T298] BUG: Dentry ffff8881e729dee0{i=0,n=.index}  still in use (1) [unmount of vfat loop0]
[   74.190744][  T298] ------------[ cut here ]------------
[   74.196183][  T298] WARNING: CPU: 0 PID: 298 at fs/dcache.c:1597 umount_check+0x179/0x1c0
[   74.204467][  T298] Modules linked in:
[   74.208330][  T298] CPU: 0 PID: 298 Comm: syz-executor542 Tainted: G        W         5.4.147-syzkaller-00036-geb4a5a5dbd5b #0
[   74.219835][  T298] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   74.229875][  T298] RIP: 0010:umount_check+0x179/0x1c0
[   74.235135][  T298] Code: ff 4c 8b 0b 48 81 c5 20 04 00 00 48 c7 c7 e0 14 c9 84 4c 89 fe 4c 89 f2 4c 89 f9 45 89 e8 31 c0 55 e8 b7 0e b3 ff 48 83 c4 08 <0f> 0b e9 fd fe ff ff 89 e9 80 e1 07 80 c1 03 38 c1 0f 8c d4 fe ff
[   74.254715][  T298] RSP: 0018:ffff8881de517cc0 EFLAGS: 00010296
[   74.260751][  T298] RAX: 0000000000000054 RBX: ffffffff85dc6240 RCX: c723b34d2c94fd00
[   74.268695][  T298] RDX: 0000000000000000 RSI: 0000000080000002 RDI: 0000000000000000
[   74.276644][  T298] RBP: ffff8881dd673420 R08: ffffffff814b2a4c R09: ffffed103bca2f51
[   74.284620][  T298] R10: ffffed103bca2f51 R11: 0000000000000000 R12: dffffc0000000000
[   74.292562][  T298] R13: 0000000000000001 R14: 0000000000000000 R15: ffff8881e729dee0
[   74.300525][  T298] FS:  0000555556809300(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
[   74.309418][  T298] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   74.315967][  T298] CR2: 0000555556812628 CR3: 00000001e0b04000 CR4: 00000000003406f0
[   74.323907][  T298] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   74.332118][  T298] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   74.340057][  T298] Call Trace:
[   74.343331][  T298]  d_walk+0x2d9/0x540
[   74.347281][  T298]  ? __d_free+0x20/0x20
[   74.351403][  T298]  shrink_dcache_for_umount+0x8a/0x1a0
[   74.356913][  T298]  generic_shutdown_super+0x63/0x2a0
[   74.362166][  T298]  kill_block_super+0x79/0xd0
[   74.366838][  T298]  deactivate_locked_super+0xaf/0x100
[   74.372194][  T298]  deactivate_super+0x168/0x210
[   74.377024][  T298]  cleanup_mnt+0x432/0x4e0
[   74.381411][  T298]  task_work_run+0x186/0x1b0
[   74.385995][  T298]  prepare_exit_to_usermode+0x2b0/0x310
[   74.391509][  T298]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   74.397395][  T298] RIP: 0033:0x7fd69fe6f377
[   74.401779][  T298] 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
[   74.421784][  T298] RSP: 002b:00007ffdf88de9f8 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6
[   74.430173][  T298] RAX: 0000000000000000 RBX: 00000000000120c1 RCX: 00007fd69fe6f377
[   74.438112][  T298] RDX: 00007ffdf88deaba RSI: 0000000000000002 RDI: 00007ffdf88deab0
[   74.446051][  T298] RBP: 00007ffdf88deab0 R08: 00000000ffffffff R09: 00007ffdf88de890
[   74.454002][  T298] R10: 000055555680a633 R11: 0000000000000202 R12: 00007ffdf88dfb30
[   74.461954][  T298] R13: 000055555680a5f0 R14: 00007ffdf88dea20 R15: 0000000000000015
[   74.469905][  T298] ---[ end trace 2c212115904b10c5 ]---
[   74.477032][  T298] VFS: Busy inodes after unmount of loop0. Self-destruct in 5 seconds.  Have a nice day...
executing program
[   74.554237][  T342] FAULT_INJECTION: forcing a failure.
[   74.554237][  T342] name failslab, interval 1, probability 0, space 0, times 0
[   74.567062][  T342] CPU: 1 PID: 342 Comm: syz-executor542 Tainted: G        W         5.4.147-syzkaller-00036-geb4a5a5dbd5b #0
[   74.578565][  T342] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   74.588590][  T342] Call Trace:
[   74.592703][  T342]  dump_stack+0x18e/0x1de
[   74.597159][  T342]  should_fail+0x5d8/0x740
[   74.601666][  T342]  ? security_inode_alloc+0x32/0x1d0
[   74.606941][  T342]  should_failslab+0x5/0x20
[   74.611502][  T342]  kmem_cache_alloc+0x36/0x290
[   74.616496][  T342]  security_inode_alloc+0x32/0x1d0
[   74.622188][  T342]  inode_init_always+0x387/0x810
[   74.627107][  T342]  ? fat_get_block_bmap+0x330/0x330
[   74.632412][  T342]  new_inode_pseudo+0x90/0x220
[   74.637155][  T342]  new_inode+0x25/0x1d0
[   74.641405][  T342]  ? _raw_spin_lock+0x6c/0x170
[   74.646143][  T342]  fat_build_inode+0x1e8/0x3e0
[   74.650885][  T342]  vfat_mkdir+0x212/0x360
[   74.655189][  T342]  vfs_mkdir+0x416/0x5f0
[   74.659429][  T342]  open_or_create_special_dir+0xba/0x150
[   74.665056][  T342]  incfs_mount_fs+0x366/0x770
[   74.669703][  T342]  legacy_get_tree+0xde/0x170
[   74.674360][  T342]  ? incfs_unlink+0x80/0x80
[   74.678833][  T342]  vfs_get_tree+0x83/0x260
[   74.683318][  T342]  do_mount+0x17be/0x2390
[   74.687718][  T342]  ? copy_mount_options+0xc9/0x300
[   74.692813][  T342]  ksys_mount+0xc2/0xf0
[   74.696943][  T342]  __x64_sys_mount+0xb1/0xc0
[   74.701688][  T342]  do_syscall_64+0xcb/0x1e0
[   74.706978][  T342]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   74.712847][  T342] RIP: 0033:0x7fd69fe6dfd9
[   74.717264][  T342] 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
[   74.737188][  T342] RSP: 002b:00007ffdf88dfae8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[   74.745572][  T342] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fd69fe6dfd9