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