syzkaller login: [ 6.221476][ T0] NOHZ tick-stop error: Non-RCU local softirq work is pending, handler #80!!! [ 11.141543][ T0] NOHZ tick-stop error: Non-RCU local softirq work is pending, handler #80!!! [ 11.789968][ T23] kauditd_printk_skb: 60 callbacks suppressed [ 11.789983][ T23] audit: type=1400 audit(1635024163.209:71): avc: denied { transition } for pid=290 comm="sshd" path="/bin/sh" dev="sda1" ino=73 scontext=system_u:system_r:initrc_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 11.796365][ T23] audit: type=1400 audit(1635024163.219:72): avc: denied { write } for pid=290 comm="sh" path="pipe:[10788]" dev="pipefs" ino=10788 scontext=root:sysadm_r:sysadm_t tcontext=system_u:system_r:initrc_t tclass=fifo_file permissive=1 [ 12.624456][ T0] NOHZ tick-stop error: Non-RCU local softirq work is pending, handler #08!!! [ 12.706731][ T0] NOHZ tick-stop error: Non-RCU local softirq work is pending, handler #80!!! [ 13.191463][ T0] NOHZ tick-stop error: Non-RCU local softirq work is pending, handler #10!!! [ 13.193111][ T0] NOHZ tick-stop error: Non-RCU local softirq work is pending, handler #10!!! Warning: Permanently added '10.128.1.12' (ECDSA) to the list of known hosts. executing program [ 42.667985][ T23] audit: type=1400 audit(1635024194.089:73): avc: denied { execmem } for pid=365 comm="syz-executor977" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 42.692211][ T23] audit: type=1400 audit(1635024194.119:74): avc: denied { read write } for pid=365 comm="syz-executor977" name="loop0" dev="devtmpfs" ino=115 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1 [ 42.716949][ T23] audit: type=1400 audit(1635024194.119:75): avc: denied { open } for pid=365 comm="syz-executor977" path="/dev/loop0" dev="devtmpfs" ino=115 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1 [ 42.722165][ T367] FAULT_INJECTION: forcing a failure. [ 42.722165][ T367] name failslab, interval 1, probability 0, space 0, times 1 [ 42.741292][ T23] audit: type=1400 audit(1635024194.119:76): avc: denied { ioctl } for pid=365 comm="syz-executor977" path="/dev/loop0" dev="devtmpfs" ino=115 ioctlcmd=0x4c01 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1 [ 42.753662][ T367] CPU: 0 PID: 367 Comm: syz-executor977 Not tainted 5.10.75-syzkaller-01082-g234d53d2bb60 #0 [ 42.781513][ T23] audit: type=1400 audit(1635024194.119:77): avc: denied { mounton } for pid=367 comm="syz-executor977" path="/root/syzkaller.LDaQiP/0/file0" dev="sda1" ino=1139 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:user_home_t tclass=dir permissive=1 [ 42.789332][ T367] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 42.789336][ T367] Call Trace: [ 42.789374][ T367] dump_stack_lvl+0x1e2/0x24b [ 42.814151][ T23] audit: type=1400 audit(1635024194.149:78): avc: denied { mount } for pid=367 comm="syz-executor977" name="/" dev="loop0" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:dosfs_t tclass=filesystem permissive=1 [ 42.823760][ T367] ? devkmsg_release+0x127/0x127 [ 42.823770][ T367] ? show_regs_print_info+0x18/0x18 [ 42.823780][ T367] dump_stack+0x15/0x1d [ 42.823787][ T367] should_fail+0x3c0/0x510 [ 42.823805][ T367] ? __list_lru_init+0xae/0x590 [ 42.827382][ T23] audit: type=1400 audit(1635024194.149:79): avc: denied { mounton } for pid=367 comm="syz-executor977" path="/root/syzkaller.LDaQiP/0/file0" dev="loop0" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:dosfs_t tclass=dir permissive=1 [ 42.831714][ T367] __should_failslab+0x9f/0xe0 [ 42.831725][ T367] should_failslab+0x9/0x20 [ 42.831734][ T367] kmem_cache_alloc_trace+0x42/0x3a0 [ 42.831743][ T367] __list_lru_init+0xae/0x590 [ 42.831751][ T367] alloc_super+0x65c/0x770 [ 42.831765][ T367] sget+0x1fd/0x4e0 [ 42.928476][ T367] ? free_anon_bdev+0x30/0x30 [ 42.933130][ T367] incfs_mount_fs+0xca/0x840 [ 42.937689][ T367] ? incfs_unlink+0x80/0x80 [ 42.942167][ T367] ? selinux_capable+0x39/0x50 [ 42.946911][ T367] legacy_get_tree+0xf0/0x190 [ 42.951559][ T367] ? incfs_unlink+0x80/0x80 [ 42.956038][ T367] vfs_get_tree+0x89/0x270 [ 42.960427][ T367] path_mount+0x1975/0x2ab0 [ 42.964907][ T367] ? mark_mounts_for_expiry+0x4b0/0x4b0 [ 42.970424][ T367] ? getname_flags+0x207/0x650 [ 42.975165][ T367] ? user_path_at_empty+0x40/0x50 [ 42.980162][ T367] __se_sys_mount+0x2f7/0x3b0 [ 42.984812][ T367] ? __x64_sys_mount+0xd0/0xd0 [ 42.989551][ T367] ? debug_smp_processor_id+0x1c/0x20 [ 42.994948][ T367] __x64_sys_mount+0xbf/0xd0 [ 42.999511][ T367] do_syscall_64+0x31/0x70 [ 43.003956][ T367] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 43.009824][ T367] RIP: 0033:0x7fb6577aafd9 [ 43.014210][ T367] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 43.034220][ T367] RSP: 002b:00007fff3432ea98 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 43.042610][ T367] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fb6577aafd9 [ 43.050555][ T367] RDX: 0000000020000340 RSI: 0000000020000000 RDI: 00000000200002c0 [ 43.058500][ T367] RBP: 00007fff3432eac0 R08: 0000000000000000 R09: 00007fff3432ead0 executing program [ 43.066453][ T367] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000003 [ 43.074416][ T367] R13: 00007fff3432eb00 R14: 00007fff3432eae0 R15: 0000000000000000 [ 43.083649][ T23] audit: type=1400 audit(1635024194.509:80): avc: denied { unmount } for pid=365 comm="syz-executor977" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:dosfs_t tclass=filesystem permissive=1 [ 43.115034][ T369] FAULT_INJECTION: forcing a failure. [ 43.115034][ T369] name failslab, interval 1, probability 0, space 0, times 0 [ 43.127667][ T369] CPU: 0 PID: 369 Comm: syz-executor977 Not tainted 5.10.75-syzkaller-01082-g234d53d2bb60 #0 [ 43.137894][ T369] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 43.147921][ T369] Call Trace: [ 43.151185][ T369] dump_stack_lvl+0x1e2/0x24b [ 43.155835][ T369] ? devkmsg_release+0x127/0x127 [ 43.160745][ T369] ? show_regs_print_info+0x18/0x18 [ 43.165914][ T369] ? is_bpf_text_address+0x1a2/0x1c0 [ 43.171270][ T369] ? is_module_text_address+0xe1/0x140 [ 43.176704][ T369] dump_stack+0x15/0x1d [ 43.180836][ T369] should_fail+0x3c0/0x510 [ 43.185229][ T369] ? __d_alloc+0x2d/0x6b0 [ 43.189529][ T369] __should_failslab+0x9f/0xe0 [ 43.194263][ T369] should_failslab+0x9/0x20 [ 43.198735][ T369] kmem_cache_alloc+0x43/0x380 [ 43.203469][ T369] ? avc_has_perm_noaudit+0x358/0x4d0 [ 43.208810][ T369] __d_alloc+0x2d/0x6b0 [ 43.212952][ T369] ? avc_has_perm_noaudit+0x2ed/0x4d0 [ 43.218292][ T369] d_alloc_parallel+0xf3/0x1360 [ 43.223119][ T369] ? avc_denied+0x1b0/0x1b0 [ 43.227679][ T369] ? ____kasan_kmalloc+0xf3/0x110 [ 43.232672][ T369] ? __kasan_kmalloc+0x9/0x10 [ 43.237318][ T369] ? selinux_inode_permission+0x44e/0x6a0 [ 43.243011][ T369] ? d_hash_and_lookup+0x200/0x200 [ 43.248095][ T369] ? selinux_inode_follow_link+0x3c0/0x3c0 [ 43.255084][ T369] ? __rcu_read_lock+0x50/0x50 [ 43.259834][ T369] __lookup_slow+0x14e/0x400 [ 43.264400][ T369] ? lookup_one_len+0x2c0/0x2c0 [ 43.269237][ T369] ? inode_permission+0xe0/0x520 [ 43.274168][ T369] lookup_one_len+0x17f/0x2c0 [ 43.278829][ T369] ? __kasan_check_write+0x14/0x20 [ 43.283911][ T369] ? lookup_one_len_common+0x450/0x450 [ 43.289354][ T369] incfs_lookup_dentry+0x5f/0xb0 [ 43.294282][ T369] open_or_create_special_dir+0x49/0x150 [ 43.299894][ T369] incfs_mount_fs+0x3e9/0x840 [ 43.304549][ T369] ? incfs_unlink+0x80/0x80 [ 43.309042][ T369] ? selinux_capable+0x39/0x50 [ 43.313806][ T369] legacy_get_tree+0xf0/0x190 [ 43.318454][ T369] ? incfs_unlink+0x80/0x80 [ 43.322927][ T369] vfs_get_tree+0x89/0x270 [ 43.327325][ T369] path_mount+0x1975/0x2ab0 [ 43.331800][ T369] ? mark_mounts_for_expiry+0x4b0/0x4b0 [ 43.337404][ T369] ? getname_flags+0x207/0x650 [ 43.342135][ T369] ? user_path_at_empty+0x40/0x50 [ 43.347130][ T369] __se_sys_mount+0x2f7/0x3b0 [ 43.351784][ T369] ? __x64_sys_mount+0xd0/0xd0 [ 43.356516][ T369] ? debug_smp_processor_id+0x1c/0x20 [ 43.361870][ T369] __x64_sys_mount+0xbf/0xd0 [ 43.366443][ T369] do_syscall_64+0x31/0x70 [ 43.370879][ T369] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 43.376785][ T369] RIP: 0033:0x7fb6577aafd9 [ 43.381174][ T369] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 43.400756][ T369] RSP: 002b:00007fff3432ea98 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 43.409154][ T369] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fb6577aafd9 [ 43.417273][ T369] RDX: 0000000020000340 RSI: 0000000020000000 RDI: 00000000200002c0 [ 43.425222][ T369] RBP: 00007fff3432eac0 R08: 0000000000000000 R09: 00007fff3432ead0 [ 43.433167][ T369] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000003 [ 43.441143][ T369] R13: 00007fff3432eb00 R14: 00007fff3432eae0 R15: 0000000000000001 [ 43.449196][ T369] incfs_lookup_dentry err:-12 [ 43.453922][ T369] incfs: Can't find or create .index dir in ./file0 executing program [ 43.545207][ T371] FAULT_INJECTION: forcing a failure. [ 43.545207][ T371] name failslab, interval 1, probability 0, space 0, times 0 [ 43.557885][ T371] CPU: 0 PID: 371 Comm: syz-executor977 Not tainted 5.10.75-syzkaller-01082-g234d53d2bb60 #0 [ 43.568043][ T371] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 43.578076][ T371] Call Trace: [ 43.581343][ T371] dump_stack_lvl+0x1e2/0x24b [ 43.585994][ T371] ? devkmsg_release+0x127/0x127 [ 43.590904][ T371] ? show_regs_print_info+0x18/0x18 [ 43.596074][ T371] dump_stack+0x15/0x1d [ 43.600205][ T371] should_fail+0x3c0/0x510 [ 43.604601][ T371] ? avc_insert+0xb6/0x950 [ 43.608992][ T371] __should_failslab+0x9f/0xe0 [ 43.613729][ T371] should_failslab+0x9/0x20 [ 43.618207][ T371] kmem_cache_alloc+0x43/0x380 [ 43.622945][ T371] avc_insert+0xb6/0x950 [ 43.627165][ T371] avc_compute_av+0xd0/0xe0 [ 43.631643][ T371] avc_has_perm_noaudit+0x2aa/0x4d0 [ 43.636816][ T371] ? avc_denied+0x1b0/0x1b0 [ 43.641295][ T371] ? __d_rehash+0x19e/0x1e0 [ 43.645776][ T371] avc_has_perm+0xd2/0x270 [ 43.650167][ T371] ? avc_has_perm_noaudit+0x4d0/0x4d0 [ 43.655514][ T371] ? security_transition_sid+0x7d/0x90 [ 43.660945][ T371] may_create+0x635/0x8b0 [ 43.665249][ T371] ? show_sid+0x250/0x250 [ 43.669552][ T371] ? __kasan_check_write+0x14/0x20 [ 43.674636][ T371] ? from_kgid+0x206/0x350 [ 43.679042][ T371] selinux_inode_mkdir+0x22/0x30 [ 43.683959][ T371] security_inode_mkdir+0xa8/0x130 [ 43.689045][ T371] vfs_mkdir+0x361/0x610 [ 43.693265][ T371] open_or_create_special_dir+0xbf/0x150 [ 43.698874][ T371] incfs_mount_fs+0x3e9/0x840 [ 43.703530][ T371] ? incfs_unlink+0x80/0x80 [ 43.708007][ T371] ? selinux_capable+0x39/0x50 [ 43.712745][ T371] legacy_get_tree+0xf0/0x190 [ 43.717396][ T371] ? incfs_unlink+0x80/0x80 [ 43.721877][ T371] vfs_get_tree+0x89/0x270 [ 43.726269][ T371] path_mount+0x1975/0x2ab0 [ 43.730754][ T371] ? mark_mounts_for_expiry+0x4b0/0x4b0 [ 43.736273][ T371] ? getname_flags+0x207/0x650 [ 43.741012][ T371] ? user_path_at_empty+0x40/0x50 [ 43.746020][ T371] __se_sys_mount+0x2f7/0x3b0 [ 43.750685][ T371] ? __x64_sys_mount+0xd0/0xd0 [ 43.755427][ T371] ? debug_smp_processor_id+0x1c/0x20 [ 43.760798][ T371] __x64_sys_mount+0xbf/0xd0 [ 43.765363][ T371] do_syscall_64+0x31/0x70 [ 43.769770][ T371] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 43.775635][ T371] RIP: 0033:0x7fb6577aafd9 [ 43.780025][ T371] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 43.799601][ T371] RSP: 002b:00007fff3432ea98 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 43.807986][ T371] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fb6577aafd9 [ 43.815949][ T371] RDX: 0000000020000340 RSI: 0000000020000000 RDI: 00000000200002c0 [ 43.823908][ T371] RBP: 00007fff3432eac0 R08: 0000000000000000 R09: 00007fff3432ead0 [ 43.831856][ T371] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000003 [ 43.839816][ T371] R13: 00007fff3432eb00 R14: 00007fff3432eae0 R15: 0000000000000002 [ 43.848213][ T371] incfs: ino conflict with backing FS 1 [ 43.853917][ T23] audit: type=1400 audit(1635024195.279:81): avc: denied { mount } for pid=371 comm="syz-executor977" name="/" dev="incremental-fs" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unlabeled_t tclass=filesystem permissive=1 [ 43.878590][ T23] audit: type=1400 audit(1635024195.299:82): avc: denied { unmount } for pid=365 comm="syz-executor977" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unlabeled_t tclass=filesystem permissive=1 executing program [ 43.953583][ T373] FAULT_INJECTION: forcing a failure. [ 43.953583][ T373] name failslab, interval 1, probability 0, space 0, times 0 [ 43.966353][ T373] CPU: 1 PID: 373 Comm: syz-executor977 Not tainted 5.10.75-syzkaller-01082-g234d53d2bb60 #0 [ 43.976525][ T373] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 43.986833][ T373] Call Trace: [ 43.990185][ T373] dump_stack_lvl+0x1e2/0x24b [ 43.994919][ T373] ? show_regs_print_info+0x18/0x18 [ 44.000099][ T373] ? is_module_text_address+0xe1/0x140 [ 44.005530][ T373] ? stack_trace_save+0x1e0/0x1e0 [ 44.010531][ T373] dump_stack+0x15/0x1d [ 44.014657][ T373] should_fail+0x3c0/0x510 [ 44.019046][ T373] ? mempool_alloc_slab+0x1d/0x30 [ 44.024045][ T373] __should_failslab+0x9f/0xe0 [ 44.028804][ T373] should_failslab+0x9/0x20 [ 44.033283][ T373] kmem_cache_alloc+0x43/0x380 [ 44.038019][ T373] ? mempool_free+0x310/0x310 [ 44.042667][ T373] mempool_alloc_slab+0x1d/0x30 [ 44.047498][ T373] mempool_alloc+0x113/0x650 [ 44.052061][ T373] ? __kasan_check_read+0x11/0x20 [ 44.057072][ T373] ? __page_pinner_migration_failed+0xdd/0x250 [ 44.063369][ T373] ? mempool_resize+0x8e0/0x8e0 [ 44.068191][ T373] ? _raw_spin_trylock_bh+0x1a0/0x1a0 [ 44.073536][ T373] ? pagecache_get_page+0x907/0x9c0 [ 44.078706][ T373] bio_alloc_bioset+0x1db/0x650 [ 44.083543][ T373] ? __kasan_check_write+0x14/0x20 [ 44.088626][ T373] ? __find_get_block+0xa6b/0xbd0 [ 44.093622][ T373] ? bio_chain_endio+0x120/0x120 [ 44.098541][ T373] ? write_boundary_block+0x150/0x150 [ 44.103886][ T373] ? __rcu_read_lock+0x50/0x50 [ 44.108624][ T373] submit_bh_wbc+0x1cb/0x740 [ 44.113200][ T373] __bread_gfp+0x187/0x320 [ 44.117602][ T373] fat12_ent_bread+0x17f/0x510 [ 44.122353][ T373] ? fat12_ent_blocknr+0xb4/0x1e0 [ 44.127435][ T373] ? fat12_ent_set_ptr+0x270/0x270 [ 44.132516][ T373] fat_alloc_clusters+0x887/0x1660 [ 44.137611][ T373] ? __rcu_read_lock+0x50/0x50 [ 44.142364][ T373] ? fat_mirror_bhs+0x480/0x480 [ 44.147205][ T373] ? memcpy+0x56/0x70 [ 44.151160][ T373] fat_alloc_new_dir+0x19e/0xd70 [ 44.156068][ T373] ? __fat_remove_entries+0x4f0/0x4f0 [ 44.161430][ T373] ? __kasan_check_write+0x14/0x20 [ 44.166533][ T373] ? __d_lookup_rcu+0xc0/0x660 [ 44.171272][ T373] ? may_create+0x635/0x8b0 [ 44.175754][ T373] vfat_mkdir+0x176/0x420 [ 44.180052][ T373] ? vfat_unlink+0x3a0/0x3a0 [ 44.184614][ T373] ? selinux_inode_mkdir+0x22/0x30 [ 44.189696][ T373] ? security_inode_mkdir+0xf1/0x130 [ 44.194951][ T373] vfs_mkdir+0x435/0x610 [ 44.199168][ T373] open_or_create_special_dir+0xbf/0x150 [ 44.204769][ T373] incfs_mount_fs+0x3e9/0x840 [ 44.209423][ T373] ? incfs_unlink+0x80/0x80 [ 44.213912][ T373] ? selinux_capable+0x39/0x50 [ 44.218646][ T373] legacy_get_tree+0xf0/0x190 [ 44.223295][ T373] ? incfs_unlink+0x80/0x80 [ 44.227769][ T373] vfs_get_tree+0x89/0x270 [ 44.232156][ T373] path_mount+0x1975/0x2ab0 [ 44.236632][ T373] ? mark_mounts_for_expiry+0x4b0/0x4b0 [ 44.242150][ T373] ? getname_flags+0x207/0x650 [ 44.246885][ T373] ? user_path_at_empty+0x40/0x50 [ 44.251882][ T373] __se_sys_mount+0x2f7/0x3b0 [ 44.256529][ T373] ? __x64_sys_mount+0xd0/0xd0 [ 44.261262][ T373] ? debug_smp_processor_id+0x1c/0x20 [ 44.266603][ T373] __x64_sys_mount+0xbf/0xd0 [ 44.271164][ T373] do_syscall_64+0x31/0x70 [ 44.275551][ T373] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 44.281416][ T373] RIP: 0033:0x7fb6577aafd9 [ 44.285803][ T373] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 44.305380][ T373] RSP: 002b:00007fff3432ea98 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 44.313766][ T373] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fb6577aafd9 [ 44.321707][ T373] RDX: 0000000020000340 RSI: 0000000020000000 RDI: 00000000200002c0 [ 44.329652][ T373] RBP: 00007fff3432eac0 R08: 0000000000000000 R09: 00007fff3432ead0 [ 44.337604][ T373] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000003 [ 44.345726][ T373] R13: 00007fff3432eb00 R14: 00007fff3432eae0 R15: 0000000000000003 [ 44.355483][ T373] incfs: ino conflict with backing FS 1 executing program [ 44.473566][ T375] FAULT_INJECTION: forcing a failure. [ 44.473566][ T375] name failslab, interval 1, probability 0, space 0, times 0 [ 44.486157][ T375] CPU: 0 PID: 375 Comm: syz-executor977 Not tainted 5.10.75-syzkaller-01082-g234d53d2bb60 #0 [ 44.496275][ T375] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 44.506301][ T375] Call Trace: [ 44.509578][ T375] dump_stack_lvl+0x1e2/0x24b [ 44.514226][ T375] ? show_regs_print_info+0x18/0x18 [ 44.519396][ T375] ? stack_trace_save+0x1e0/0x1e0 [ 44.524392][ T375] ? arch_stack_walk+0x106/0x140 [ 44.529404][ T375] dump_stack+0x15/0x1d [ 44.533531][ T375] should_fail+0x3c0/0x510 [ 44.538003][ T375] ? xas_create+0x651/0x1870 [ 44.542563][ T375] __should_failslab+0x9f/0xe0 [ 44.547294][ T375] should_failslab+0x9/0x20 [ 44.551768][ T375] kmem_cache_alloc+0x43/0x380 [ 44.556535][ T375] xas_create+0x651/0x1870 [ 44.560962][ T375] xas_store+0x9e/0x1ad0 [ 44.565174][ T375] ? xas_find_conflict+0x71b/0x830 [ 44.570255][ T375] __add_to_page_cache_locked+0x5f5/0xb70 [ 44.575942][ T375] ? replace_page_cache_page+0xb00/0xb00 [ 44.581557][ T375] ? workingset_activation+0x250/0x250 [ 44.586993][ T375] ? __alloc_pages_nodemask+0x3c8/0x820 [ 44.592536][ T375] add_to_page_cache_lru+0x123/0x290 [ 44.597805][ T375] ? add_to_page_cache_locked+0x40/0x40 [ 44.603319][ T375] ? __find_get_block_slow+0x12b/0x4e0 [ 44.608747][ T375] pagecache_get_page+0x725/0x9c0 [ 44.613749][ T375] grow_dev_page+0xba/0x4c0 [ 44.618225][ T375] __getblk_gfp+0x18d/0x2a0 [ 44.622707][ T375] fat_alloc_new_dir+0x27a/0xd70 [ 44.627612][ T375] ? __fat_remove_entries+0x4f0/0x4f0 [ 44.632952][ T375] ? __kasan_check_write+0x14/0x20 [ 44.638034][ T375] ? __d_lookup_rcu+0xc0/0x660 [ 44.642781][ T375] ? may_create+0x635/0x8b0 [ 44.647261][ T375] vfat_mkdir+0x176/0x420 [ 44.651559][ T375] ? vfat_unlink+0x3a0/0x3a0 [ 44.656130][ T375] ? selinux_inode_mkdir+0x22/0x30 [ 44.661210][ T375] ? security_inode_mkdir+0xf1/0x130 [ 44.666459][ T375] vfs_mkdir+0x435/0x610 [ 44.670674][ T375] open_or_create_special_dir+0xbf/0x150 [ 44.676284][ T375] incfs_mount_fs+0x3e9/0x840 [ 44.680930][ T375] ? incfs_unlink+0x80/0x80 [ 44.685495][ T375] ? selinux_capable+0x39/0x50 [ 44.690226][ T375] legacy_get_tree+0xf0/0x190 [ 44.694869][ T375] ? incfs_unlink+0x80/0x80 [ 44.699341][ T375] vfs_get_tree+0x89/0x270 [ 44.703724][ T375] path_mount+0x1975/0x2ab0 [ 44.708205][ T375] ? mark_mounts_for_expiry+0x4b0/0x4b0 [ 44.713717][ T375] ? getname_flags+0x207/0x650 [ 44.718449][ T375] ? user_path_at_empty+0x40/0x50 [ 44.723441][ T375] __se_sys_mount+0x2f7/0x3b0 [ 44.728084][ T375] ? __x64_sys_mount+0xd0/0xd0 [ 44.732817][ T375] ? debug_smp_processor_id+0x1c/0x20 [ 44.738158][ T375] __x64_sys_mount+0xbf/0xd0 [ 44.742719][ T375] do_syscall_64+0x31/0x70 [ 44.747103][ T375] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 44.752992][ T375] RIP: 0033:0x7fb6577aafd9 [ 44.757376][ T375] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 44.776948][ T375] RSP: 002b:00007fff3432ea98 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 44.785340][ T375] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fb6577aafd9 [ 44.793300][ T375] RDX: 0000000020000340 RSI: 0000000020000000 RDI: 00000000200002c0 [ 44.801242][ T375] RBP: 00007fff3432eac0 R08: 0000000000000000 R09: 00007fff3432ead0 [ 44.809191][ T375] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000003 [ 44.817217][ T375] R13: 00007fff3432eb00 R14: 00007fff3432eae0 R15: 0000000000000004 [ 44.826853][ T375] incfs: ino conflict with backing FS 1 executing program [ 44.945241][ T377] FAULT_INJECTION: forcing a failure. [ 44.945241][ T377] name failslab, interval 1, probability 0, space 0, times 0 [ 44.957854][ T377] CPU: 1 PID: 377 Comm: syz-executor977 Not tainted 5.10.75-syzkaller-01082-g234d53d2bb60 #0 [ 44.967971][ T377] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 44.978003][ T377] Call Trace: [ 44.981270][ T377] dump_stack_lvl+0x1e2/0x24b [ 44.985921][ T377] ? show_regs_print_info+0x18/0x18 [ 44.991091][ T377] ? is_module_text_address+0xe1/0x140 [ 44.996520][ T377] ? stack_trace_save+0x1e0/0x1e0 [ 45.001514][ T377] dump_stack+0x15/0x1d [ 45.005641][ T377] should_fail+0x3c0/0x510 [ 45.010035][ T377] ? mempool_alloc_slab+0x1d/0x30 [ 45.015120][ T377] __should_failslab+0x9f/0xe0 [ 45.019889][ T377] should_failslab+0x9/0x20 [ 45.024364][ T377] kmem_cache_alloc+0x43/0x380 [ 45.029131][ T377] ? mempool_free+0x310/0x310 [ 45.033783][ T377] mempool_alloc_slab+0x1d/0x30 [ 45.038612][ T377] mempool_alloc+0x113/0x650 [ 45.043190][ T377] ? __kasan_check_read+0x11/0x20 [ 45.048185][ T377] ? __page_pinner_migration_failed+0xdd/0x250 [ 45.054392][ T377] ? mempool_resize+0x8e0/0x8e0 [ 45.059302][ T377] ? _raw_spin_trylock_bh+0x1a0/0x1a0 [ 45.064641][ T377] ? pagecache_get_page+0x907/0x9c0 [ 45.069809][ T377] bio_alloc_bioset+0x1db/0x650 [ 45.074628][ T377] ? __kasan_check_write+0x14/0x20 [ 45.079706][ T377] ? __find_get_block+0xa6b/0xbd0 [ 45.084713][ T377] ? bio_chain_endio+0x120/0x120 [ 45.089625][ T377] ? write_boundary_block+0x150/0x150 [ 45.094968][ T377] ? __rcu_read_lock+0x50/0x50 [ 45.099705][ T377] submit_bh_wbc+0x1cb/0x740 [ 45.104271][ T377] __bread_gfp+0x187/0x320 [ 45.108664][ T377] fat12_ent_bread+0x17f/0x510 [ 45.113399][ T377] ? fat12_ent_blocknr+0xb4/0x1e0 [ 45.118408][ T377] ? fat12_ent_set_ptr+0x270/0x270 [ 45.123490][ T377] fat_alloc_clusters+0x887/0x1660 [ 45.128574][ T377] ? __rcu_read_lock+0x50/0x50 [ 45.133311][ T377] ? fat_mirror_bhs+0x480/0x480 [ 45.138134][ T377] ? memcpy+0x56/0x70 [ 45.142088][ T377] fat_alloc_new_dir+0x19e/0xd70 [ 45.147000][ T377] ? __fat_remove_entries+0x4f0/0x4f0 [ 45.152343][ T377] ? __kasan_check_write+0x14/0x20 [ 45.157427][ T377] ? __d_lookup_rcu+0xc0/0x660 [ 45.162163][ T377] ? may_create+0x635/0x8b0 [ 45.166638][ T377] vfat_mkdir+0x176/0x420 [ 45.170940][ T377] ? vfat_unlink+0x3a0/0x3a0 [ 45.175501][ T377] ? selinux_inode_mkdir+0x22/0x30 [ 45.180582][ T377] ? security_inode_mkdir+0xf1/0x130 [ 45.185839][ T377] vfs_mkdir+0x435/0x610 [ 45.190053][ T377] open_or_create_special_dir+0xbf/0x150 [ 45.195654][ T377] incfs_mount_fs+0x3e9/0x840 [ 45.200303][ T377] ? incfs_unlink+0x80/0x80 [ 45.204798][ T377] ? selinux_capable+0x39/0x50 [ 45.209540][ T377] legacy_get_tree+0xf0/0x190 [ 45.214193][ T377] ? incfs_unlink+0x80/0x80 [ 45.218670][ T377] vfs_get_tree+0x89/0x270 [ 45.223144][ T377] path_mount+0x1975/0x2ab0 [ 45.227619][ T377] ? mark_mounts_for_expiry+0x4b0/0x4b0 [ 45.233133][ T377] ? getname_flags+0x207/0x650 [ 45.237903][ T377] ? user_path_at_empty+0x40/0x50 [ 45.242912][ T377] __se_sys_mount+0x2f7/0x3b0 [ 45.247561][ T377] ? __x64_sys_mount+0xd0/0xd0 [ 45.252301][ T377] ? debug_smp_processor_id+0x1c/0x20 [ 45.257644][ T377] __x64_sys_mount+0xbf/0xd0 [ 45.262204][ T377] do_syscall_64+0x31/0x70 [ 45.266591][ T377] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 45.272455][ T377] RIP: 0033:0x7fb6577aafd9 [ 45.276844][ T377] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 45.296419][ T377] RSP: 002b:00007fff3432ea98 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 45.304804][ T377] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fb6577aafd9 [ 45.312750][ T377] RDX: 0000000020000340 RSI: 0000000020000000 RDI: 00000000200002c0 [ 45.320702][ T377] RBP: 00007fff3432eac0 R08: 0000000000000000 R09: 00007fff3432ead0 [ 45.328671][ T377] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000003 [ 45.336614][ T377] R13: 00007fff3432eb00 R14: 00007fff3432eae0 R15: 0000000000000005 [ 45.346288][ T377] incfs: ino conflict with backing FS 1 executing program [ 45.426366][ T379] FAULT_INJECTION: forcing a failure. [ 45.426366][ T379] name failslab, interval 1, probability 0, space 0, times 0 [ 45.439023][ T379] CPU: 1 PID: 379 Comm: syz-executor977 Not tainted 5.10.75-syzkaller-01082-g234d53d2bb60 #0 [ 45.449234][ T379] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 45.459276][ T379] Call Trace: [ 45.462547][ T379] dump_stack_lvl+0x1e2/0x24b [ 45.467214][ T379] ? show_regs_print_info+0x18/0x18 [ 45.472389][ T379] dump_stack+0x15/0x1d [ 45.476517][ T379] should_fail+0x3c0/0x510 [ 45.480909][ T379] ? vfat_add_entry+0x357/0x3850 [ 45.485820][ T379] __should_failslab+0x9f/0xe0 [ 45.490559][ T379] should_failslab+0x9/0x20 [ 45.495036][ T379] kmem_cache_alloc+0x43/0x380 [ 45.499781][ T379] vfat_add_entry+0x357/0x3850 [ 45.504519][ T379] ? __mod_memcg_state+0xb4/0x230 [ 45.509517][ T379] ? __kasan_check_write+0x14/0x20 [ 45.514603][ T379] ? percpu_counter_add_batch+0x14b/0x170 [ 45.520298][ T379] ? vfat_rename+0xff0/0xff0 [ 45.524865][ T379] ? __kasan_check_write+0x14/0x20 [ 45.529951][ T379] ? __brelse+0x5a/0xa0 [ 45.534236][ T379] ? fat_zeroed_cluster+0x82a/0x8a0 [ 45.539409][ T379] ? mark_buffer_dirty+0x1e3/0x310 [ 45.544495][ T379] ? _raw_spin_unlock+0x4d/0x70 [ 45.549324][ T379] ? fat_alloc_new_dir+0x857/0xd70 [ 45.554411][ T379] ? __fat_remove_entries+0x4f0/0x4f0 [ 45.559761][ T379] ? 0xffffffff81000000 [ 45.563893][ T379] ? __d_lookup_rcu+0xc0/0x660 [ 45.568632][ T379] ? may_create+0x635/0x8b0 [ 45.573112][ T379] vfat_mkdir+0x1a8/0x420 [ 45.577418][ T379] ? vfat_unlink+0x3a0/0x3a0 [ 45.581986][ T379] ? selinux_inode_mkdir+0x22/0x30 [ 45.587075][ T379] ? security_inode_mkdir+0xf1/0x130 [ 45.592332][ T379] vfs_mkdir+0x435/0x610 [ 45.596555][ T379] open_or_create_special_dir+0xbf/0x150 [ 45.602161][ T379] incfs_mount_fs+0x3e9/0x840 [ 45.606811][ T379] ? incfs_unlink+0x80/0x80 [ 45.611293][ T379] ? selinux_capable+0x39/0x50 [ 45.616034][ T379] legacy_get_tree+0xf0/0x190 [ 45.620685][ T379] ? incfs_unlink+0x80/0x80 [ 45.625164][ T379] vfs_get_tree+0x89/0x270 [ 45.629575][ T379] path_mount+0x1975/0x2ab0 [ 45.634145][ T379] ? mark_mounts_for_expiry+0x4b0/0x4b0 [ 45.639664][ T379] ? getname_flags+0x207/0x650 [ 45.644402][ T379] ? user_path_at_empty+0x40/0x50 [ 45.649403][ T379] __se_sys_mount+0x2f7/0x3b0 [ 45.654053][ T379] ? __x64_sys_mount+0xd0/0xd0 [ 45.658791][ T379] ? debug_smp_processor_id+0x1c/0x20 [ 45.664158][ T379] __x64_sys_mount+0xbf/0xd0 [ 45.668723][ T379] do_syscall_64+0x31/0x70 [ 45.673119][ T379] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 45.678985][ T379] RIP: 0033:0x7fb6577aafd9 [ 45.683383][ T379] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 45.702960][ T379] RSP: 002b:00007fff3432ea98 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 45.711365][ T379] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fb6577aafd9 [ 45.719313][ T379] RDX: 0000000020000340 RSI: 0000000020000000 RDI: 00000000200002c0 [ 45.727276][ T379] RBP: 00007fff3432eac0 R08: 0000000000000000 R09: 00007fff3432ead0 [ 45.735224][ T379] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000003 [ 45.743171][ T379] R13: 00007fff3432eb00 R14: 00007fff3432eae0 R15: 0000000000000006 [ 45.751332][ T379] incfs: Can't find or create .index dir in ./file0 [ 45.759402][ T365] BUG: Dentry ffff88811a0a1110{i=0,n=.index} still in use (1) [unmount of vfat loop0] [ 45.769219][ T365] ------------[ cut here ]------------ [ 45.774683][ T365] WARNING: CPU: 0 PID: 365 at fs/dcache.c:1616 umount_check+0x18d/0x1d0 [ 45.782993][ T365] Modules linked in: [ 45.786876][ T365] CPU: 0 PID: 365 Comm: syz-executor977 Not tainted 5.10.75-syzkaller-01082-g234d53d2bb60 #0 [ 45.797015][ T365] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 45.807123][ T365] RIP: 0010:umount_check+0x18d/0x1d0 [ 45.812405][ T365] Code: 8b 0b 49 81 c6 f8 03 00 00 48 c7 c7 40 43 2e 85 4c 89 e6 48 8b 55 d0 4c 89 e1 45 89 f8 31 c0 41 56 e8 ae d9 9e ff 48 83 c4 08 <0f> 0b e9 f1 fe ff ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c c9 fe ff [ 45.832010][ T365] RSP: 0018:ffffc90000bf7c78 EFLAGS: 00010286 [ 45.838050][ T365] RAX: 0000000000000054 RBX: ffffffff866b3380 RCX: 9f8f4fd1ceadc900 [ 45.846026][ T365] RDX: 0000000000000000 RSI: 0000000080000002 RDI: 0000000000000000 [ 45.854022][ T365] RBP: ffffc90000bf7ca8 R08: ffffffff81545368 R09: fffff5200017eeb9 [ 45.862093][ T365] R10: fffff5200017eeb9 R11: 0000000000000000 R12: ffff88811a0a1110 [ 45.870056][ T365] R13: dffffc0000000000 R14: ffff8881069d03f8 R15: 0000000000000001 [ 45.878036][ T365] FS: 000055555592b300(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 45.886977][ T365] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 45.893584][ T365] CR2: 0000555555934628 CR3: 00000001079f8000 CR4: 00000000003506b0 [ 45.901577][ T365] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 45.909622][ T365] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 45.917589][ T365] Call Trace: [ 45.920864][ T365] d_walk+0x309/0x540 [ 45.924845][ T365] ? __d_free+0x30/0x30 [ 45.929018][ T365] shrink_dcache_for_umount+0x8e/0x1b0 [ 45.934479][ T365] generic_shutdown_super+0x66/0x2c0 [ 45.939762][ T365] kill_block_super+0x80/0xe0 [ 45.944435][ T365] deactivate_locked_super+0xb0/0x100 [ 45.949794][ T365] deactivate_super+0xa5/0xd0 [ 45.954470][ T365] cleanup_mnt+0x45f/0x510 [ 45.958889][ T365] __cleanup_mnt+0x19/0x20 [ 45.963319][ T365] task_work_run+0x147/0x1b0 [ 45.967897][ T365] exit_to_user_mode_prepare+0xc3/0xe0 [ 45.973357][ T365] syscall_exit_to_user_mode+0x24/0x40 [ 45.978803][ T365] do_syscall_64+0x3d/0x70 [ 45.983223][ T365] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 45.989101][ T365] RIP: 0033:0x7fb6577ac377 [ 45.993540][ T365] Code: 07 00 48 83 c4 08 5b 5d c3 66 2e 0f 1f 84 00 00 00 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 a6 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 46.013246][ T365] RSP: 002b:00007fff3432d9a8 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6 [ 46.021661][ T365] RAX: 0000000000000000 RBX: 000000000000b15c RCX: 00007fb6577ac377 [ 46.029740][ T365] RDX: 00007fff3432da69 RSI: 0000000000000002 RDI: 00007fff3432da60 [ 46.037715][ T365] RBP: 00007fff3432da60 R08: 00000000ffffffff R09: 00007fff3432d840 [ 46.045696][ T365] R10: 000055555592c633 R11: 0000000000000202 R12: 00007fff3432eae0 [ 46.053674][ T365] R13: 000055555592c5f0 R14: 00007fff3432d9d0 R15: 0000000000000007 [ 46.061757][ T365] ---[ end trace a965d9ac4e98a338 ]--- [ 46.067553][ T365] VFS: Busy inodes after unmount of loop0. Self-destruct in 5 seconds. Have a nice day... executing program [ 46.153735][ T381] FAULT_INJECTION: forcing a failure. [ 46.153735][ T381] name failslab, interval 1, probability 0, space 0, times 0 [ 46.166404][ T381] CPU: 1 PID: 381 Comm: syz-executor977 Tainted: G W 5.10.75-syzkaller-01082-g234d53d2bb60 #0 [ 46.178099][ T381] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 46.188127][ T381] Call Trace: [ 46.191393][ T381] dump_stack_lvl+0x1e2/0x24b [ 46.196042][ T381] ? show_regs_print_info+0x18/0x18 [ 46.201260][ T381] ? is_module_text_address+0xe1/0x140 [ 46.206689][ T381] ? stack_trace_save+0x1e0/0x1e0 [ 46.211683][ T381] dump_stack+0x15/0x1d [ 46.215823][ T381] should_fail+0x3c0/0x510 [ 46.220208][ T381] ? mempool_alloc_slab+0x1d/0x30 [ 46.225202][ T381] __should_failslab+0x9f/0xe0 [ 46.229938][ T381] should_failslab+0x9/0x20 [ 46.234593][ T381] kmem_cache_alloc+0x43/0x380 [ 46.239327][ T381] ? mempool_free+0x310/0x310 [ 46.243976][ T381] mempool_alloc_slab+0x1d/0x30 [ 46.248793][ T381] mempool_alloc+0x113/0x650 [ 46.253368][ T381] ? __kasan_check_read+0x11/0x20 [ 46.258367][ T381] ? __page_pinner_migration_failed+0xdd/0x250 [ 46.264491][ T381] ? mempool_resize+0x8e0/0x8e0 [ 46.269317][ T381] ? _raw_spin_trylock_bh+0x1a0/0x1a0 [ 46.274658][ T381] ? pagecache_get_page+0x907/0x9c0 [ 46.279851][ T381] bio_alloc_bioset+0x1db/0x650 [ 46.284673][ T381] ? __kasan_check_write+0x14/0x20 [ 46.289753][ T381] ? __find_get_block+0xa6b/0xbd0 [ 46.294749][ T381] ? bio_chain_endio+0x120/0x120 [ 46.299680][ T381] ? write_boundary_block+0x150/0x150 [ 46.305040][ T381] ? __rcu_read_lock+0x50/0x50 [ 46.309802][ T381] submit_bh_wbc+0x1cb/0x740 [ 46.314366][ T381] __bread_gfp+0x187/0x320 [ 46.318851][ T381] fat12_ent_bread+0x17f/0x510 [ 46.323590][ T381] ? fat12_ent_blocknr+0xb4/0x1e0 [ 46.328589][ T381] ? fat12_ent_set_ptr+0x270/0x270 [ 46.333674][ T381] fat_alloc_clusters+0x887/0x1660 [ 46.339143][ T381] ? __rcu_read_lock+0x50/0x50 [ 46.343882][ T381] ? fat_mirror_bhs+0x480/0x480 [ 46.348707][ T381] ? memcpy+0x56/0x70 [ 46.352662][ T381] fat_alloc_new_dir+0x19e/0xd70 [ 46.357569][ T381] ? __fat_remove_entries+0x4f0/0x4f0 [ 46.362911][ T381] ? __kasan_check_write+0x14/0x20 [ 46.367998][ T381] ? __d_lookup_rcu+0xc0/0x660 [ 46.372730][ T381] ? may_create+0x635/0x8b0 [ 46.377205][ T381] vfat_mkdir+0x176/0x420 [ 46.381506][ T381] ? vfat_unlink+0x3a0/0x3a0 [ 46.386069][ T381] ? selinux_inode_mkdir+0x22/0x30 [ 46.391153][ T381] ? security_inode_mkdir+0xf1/0x130 [ 46.396406][ T381] vfs_mkdir+0x435/0x610 [ 46.400620][ T381] open_or_create_special_dir+0xbf/0x150 [ 46.406221][ T381] incfs_mount_fs+0x3e9/0x840 [ 46.410867][ T381] ? incfs_unlink+0x80/0x80 [ 46.415340][ T381] ? selinux_capable+0x39/0x50 [ 46.420072][ T381] legacy_get_tree+0xf0/0x190 [ 46.424719][ T381] ? incfs_unlink+0x80/0x80 [ 46.429192][ T381] vfs_get_tree+0x89/0x270 [ 46.433580][ T381] path_mount+0x1975/0x2ab0 [ 46.438054][ T381] ? mark_mounts_for_expiry+0x4b0/0x4b0 [ 46.443570][ T381] ? getname_flags+0x207/0x650 [ 46.448299][ T381] ? user_path_at_empty+0x40/0x50 [ 46.453294][ T381] __se_sys_mount+0x2f7/0x3b0 [ 46.457940][ T381] ? __x64_sys_mount+0xd0/0xd0 [ 46.462675][ T381] ? debug_smp_processor_id+0x1c/0x20 [ 46.468129][ T381] __x64_sys_mount+0xbf/0xd0 [ 46.472693][ T381] do_syscall_64+0x31/0x70 [ 46.477083][ T381] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 46.482944][ T381] RIP: 0033:0x7fb6577aafd9 [ 46.487348][ T381] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 46.506923][ T381] RSP: 002b:00007fff3432ea98 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 46.515306][ T381] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fb6577aafd9 [ 46.523248][ T381] RDX: 0000000020000340 RSI: 0000000020000000 RDI: 00000000200002c0 [ 46.531191][ T381] RBP: 00007fff3432eac0 R08: 0000000000000000 R09: 00007fff3432ead0 [ 46.539147][ T381] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000003 [ 46.547090][ T381] R13: 00007fff3432eb00 R14: 00007fff3432eae0 R15: 0000000000000007 [ 46.556819][ T381] incfs: ino conflict with backing FS 1 executing program [ 46.625377][ T383] FAULT_INJECTION: forcing a failure. [ 46.625377][ T383] name failslab, interval 1, probability 0, space 0, times 0 [ 46.637993][ T383] CPU: 1 PID: 383 Comm: syz-executor977 Tainted: G W 5.10.75-syzkaller-01082-g234d53d2bb60 #0 [ 46.649506][ T383] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 46.659537][ T383] Call Trace: [ 46.662805][ T383] dump_stack_lvl+0x1e2/0x24b [ 46.667455][ T383] ? show_regs_print_info+0x18/0x18 [ 46.672626][ T383] dump_stack+0x15/0x1d [ 46.676753][ T383] should_fail+0x3c0/0x510 [ 46.681144][ T383] ? vfat_add_entry+0x206/0x3850 [ 46.686051][ T383] __should_failslab+0x9f/0xe0 [ 46.690785][ T383] should_failslab+0x9/0x20 [ 46.695306][ T383] kmem_cache_alloc_trace+0x42/0x3a0 [ 46.700562][ T383] ? __kasan_check_read+0x11/0x20 [ 46.705566][ T383] ? __page_pinner_migration_failed+0xdd/0x250 [ 46.711689][ T383] vfat_add_entry+0x206/0x3850 [ 46.716425][ T383] ? __mod_memcg_state+0xb4/0x230 [ 46.721460][ T383] ? __kasan_check_write+0x14/0x20 [ 46.726544][ T383] ? percpu_counter_add_batch+0x14b/0x170 [ 46.732236][ T383] ? __rcu_read_lock+0x50/0x50 [ 46.736977][ T383] ? __add_wb_stat+0x5f/0x90 [ 46.741538][ T383] ? vfat_rename+0xff0/0xff0 [ 46.746123][ T383] ? __kasan_check_write+0x14/0x20 [ 46.751205][ T383] ? __brelse+0x5a/0xa0 [ 46.755331][ T383] ? fat_zeroed_cluster+0x82a/0x8a0 [ 46.760503][ T383] ? mark_buffer_dirty+0x1e3/0x310 [ 46.765588][ T383] ? _raw_spin_unlock+0x4d/0x70 [ 46.770409][ T383] ? fat_alloc_new_dir+0x857/0xd70 [ 46.775492][ T383] ? __fat_remove_entries+0x4f0/0x4f0 [ 46.780836][ T383] ? __kasan_check_write+0x14/0x20 [ 46.785919][ T383] ? find_inode_fast+0xa9/0x4b0 [ 46.790946][ T383] ? may_create+0x635/0x8b0 [ 46.795422][ T383] vfat_mkdir+0x1a8/0x420 [ 46.799739][ T383] ? vfat_unlink+0x3a0/0x3a0 [ 46.804301][ T383] ? selinux_inode_mkdir+0x22/0x30 [ 46.809382][ T383] ? security_inode_mkdir+0xf1/0x130 [ 46.814653][ T383] vfs_mkdir+0x435/0x610 [ 46.818884][ T383] open_or_create_special_dir+0xbf/0x150 [ 46.824486][ T383] incfs_mount_fs+0x3e9/0x840 [ 46.829133][ T383] ? incfs_unlink+0x80/0x80 [ 46.833613][ T383] ? selinux_capable+0x39/0x50 [ 46.838345][ T383] legacy_get_tree+0xf0/0x190 [ 46.842992][ T383] ? incfs_unlink+0x80/0x80 [ 46.847484][ T383] vfs_get_tree+0x89/0x270 [ 46.851872][ T383] path_mount+0x1975/0x2ab0 [ 46.856345][ T383] ? mark_mounts_for_expiry+0x4b0/0x4b0 [ 46.861861][ T383] ? getname_flags+0x207/0x650 [ 46.866592][ T383] ? user_path_at_empty+0x40/0x50 [ 46.871587][ T383] __se_sys_mount+0x2f7/0x3b0 [ 46.876236][ T383] ? __x64_sys_mount+0xd0/0xd0 [ 46.880979][ T383] ? debug_smp_processor_id+0x1c/0x20 [ 46.886324][ T383] __x64_sys_mount+0xbf/0xd0 [ 46.890895][ T383] do_syscall_64+0x31/0x70 [ 46.895283][ T383] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 46.901145][ T383] RIP: 0033:0x7fb6577aafd9 [ 46.905535][ T383] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 46.925110][ T383] RSP: 002b:00007fff3432ea98 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 46.933537][ T383] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fb6577aafd9 [ 46.941481][ T383] RDX: 0000000020000340 RSI: 0000000020000000 RDI: 00000000200002c0 [ 46.949442][ T383] RBP: 00007fff3432eac0 R08: 0000000000000000 R09: 00007fff3432ead0 [ 46.957411][ T383] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000003 [ 46.965356][ T383] R13: 00007fff3432eb00 R14: 00007fff3432eae0 R15: 0000000000000008 [ 46.973456][ T383] incfs: Can't find or create .index dir in ./file0 [ 46.981549][ T365] BUG: Dentry ffff88811a1b6550{i=0,n=.index} still in use (1) [unmount of vfat loop0] [ 46.991205][ T365] ------------[ cut here ]------------ [ 46.996685][ T365] WARNING: CPU: 0 PID: 365 at fs/dcache.c:1616 umount_check+0x18d/0x1d0 [ 47.005001][ T365] Modules linked in: [ 47.008874][ T365] CPU: 0 PID: 365 Comm: syz-executor977 Tainted: G W 5.10.75-syzkaller-01082-g234d53d2bb60 #0 [ 47.020400][ T365] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 47.030462][ T365] RIP: 0010:umount_check+0x18d/0x1d0 [ 47.035746][ T365] Code: 8b 0b 49 81 c6 f8 03 00 00 48 c7 c7 40 43 2e 85 4c 89 e6 48 8b 55 d0 4c 89 e1 45 89 f8 31 c0 41 56 e8 ae d9 9e ff 48 83 c4 08 <0f> 0b e9 f1 fe ff ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c c9 fe ff [ 47.055363][ T365] RSP: 0018:ffffc90000bf7c78 EFLAGS: 00010286 [ 47.061455][ T365] RAX: 0000000000000054 RBX: ffffffff866b3380 RCX: 9f8f4fd1ceadc900 [ 47.069425][ T365] RDX: 0000000000000000 RSI: 0000000080000002 RDI: 0000000000000000 [ 47.077482][ T365] RBP: ffffc90000bf7ca8 R08: ffffffff81545368 R09: ffffed103ee095d8 [ 47.085460][ T365] R10: ffffed103ee095d8 R11: 0000000000000000 R12: ffff88811a1b6550 [ 47.093436][ T365] R13: dffffc0000000000 R14: ffff88810a3a93f8 R15: 0000000000000001 [ 47.101412][ T365] FS: 000055555592b300(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 47.110325][ T365] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 47.116910][ T365] CR2: 0000555555934628 CR3: 00000001079f8000 CR4: 00000000003506b0 [ 47.124898][ T365] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 47.132879][ T365] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 47.140834][ T365] Call Trace: [ 47.144126][ T365] d_walk+0x309/0x540 [ 47.148087][ T365] ? __d_free+0x30/0x30 [ 47.152240][ T365] shrink_dcache_for_umount+0x8e/0x1b0 [ 47.157685][ T365] generic_shutdown_super+0x66/0x2c0 [ 47.162965][ T365] kill_block_super+0x80/0xe0 [ 47.167624][ T365] deactivate_locked_super+0xb0/0x100 [ 47.173003][ T365] deactivate_super+0xa5/0xd0 [ 47.177660][ T365] cleanup_mnt+0x45f/0x510 [ 47.182075][ T365] __cleanup_mnt+0x19/0x20 [ 47.186481][ T365] task_work_run+0x147/0x1b0 [ 47.191043][ T365] exit_to_user_mode_prepare+0xc3/0xe0 [ 47.196499][ T365] syscall_exit_to_user_mode+0x24/0x40 [ 47.201957][ T365] do_syscall_64+0x3d/0x70 [ 47.206360][ T365] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 47.212245][ T365] RIP: 0033:0x7fb6577ac377 [ 47.216649][ T365] Code: 07 00 48 83 c4 08 5b 5d c3 66 2e 0f 1f 84 00 00 00 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 a6 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 47.236252][ T365] RSP: 002b:00007fff3432d9a8 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6 [ 47.244678][ T365] RAX: 0000000000000000 RBX: 000000000000b60b RCX: 00007fb6577ac377 [ 47.252739][ T365] RDX: 00007fff3432da69 RSI: 0000000000000002 RDI: 00007fff3432da60 [ 47.260710][ T365] RBP: 00007fff3432da60 R08: 00000000ffffffff R09: 00007fff3432d840 [ 47.268682][ T365] R10: 000055555592c633 R11: 0000000000000202 R12: 00007fff3432eae0 [ 47.276660][ T365] R13: 000055555592c5f0 R14: 00007fff3432d9d0 R15: 0000000000000009 [ 47.284631][ T365] ---[ end trace a965d9ac4e98a339 ]--- [ 47.290417][ T365] VFS: Busy inodes after unmount of loop0. Self-destruct in 5 seconds. Have a nice day... executing program [ 47.353931][ T385] FAULT_INJECTION: forcing a failure. [ 47.353931][ T385] name fail_page_alloc, interval 1, probability 0, space 0, times 1 [ 47.367212][ T385] CPU: 1 PID: 385 Comm: syz-executor977 Tainted: G W 5.10.75-syzkaller-01082-g234d53d2bb60 #0 [ 47.378724][ T385] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 47.388756][ T385] Call Trace: [ 47.392053][ T385] dump_stack_lvl+0x1e2/0x24b [ 47.396710][ T385] ? show_regs_print_info+0x18/0x18 [ 47.401877][ T385] dump_stack+0x15/0x1d [ 47.406005][ T385] should_fail+0x3c0/0x510 [ 47.410402][ T385] should_fail_alloc_page+0x4f/0x60 [ 47.415574][ T385] __alloc_pages_nodemask+0x1b9/0x820 [ 47.420916][ T385] ? __x64_sys_mount+0xbf/0xd0 [ 47.425652][ T385] ? entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 47.431687][ T385] ? gfp_pfmemalloc_allowed+0x120/0x120 [ 47.437301][ T385] allocate_slab+0x6b/0x350 [ 47.441795][ T385] ___slab_alloc+0x143/0x2f0 [ 47.446363][ T385] ? alloc_buffer_head+0x26/0x110 [ 47.451361][ T385] kmem_cache_alloc+0x26f/0x380 [ 47.456198][ T385] ? alloc_buffer_head+0x26/0x110 [ 47.461193][ T385] alloc_buffer_head+0x26/0x110 [ 47.466021][ T385] alloc_page_buffers+0x138/0x4b0 [ 47.471019][ T385] grow_dev_page+0x276/0x4c0 [ 47.475589][ T385] __getblk_gfp+0x18d/0x2a0 [ 47.480062][ T385] fat_alloc_new_dir+0x27a/0xd70 [ 47.484982][ T385] ? __fat_remove_entries+0x4f0/0x4f0 [ 47.490330][ T385] ? __kasan_check_write+0x14/0x20 [ 47.495420][ T385] ? __d_lookup_rcu+0xc0/0x660 [ 47.500162][ T385] ? may_create+0x635/0x8b0 [ 47.504639][ T385] vfat_mkdir+0x176/0x420 [ 47.508942][ T385] ? vfat_unlink+0x3a0/0x3a0 [ 47.513506][ T385] ? selinux_inode_mkdir+0x22/0x30 [ 47.518601][ T385] ? security_inode_mkdir+0xf1/0x130 [ 47.523857][ T385] vfs_mkdir+0x435/0x610 [ 47.528076][ T385] open_or_create_special_dir+0xbf/0x150 [ 47.533683][ T385] incfs_mount_fs+0x3e9/0x840 [ 47.538332][ T385] ? incfs_unlink+0x80/0x80 [ 47.542807][ T385] ? selinux_capable+0x39/0x50 [ 47.547541][ T385] legacy_get_tree+0xf0/0x190 [ 47.552204][ T385] ? incfs_unlink+0x80/0x80 [ 47.556693][ T385] vfs_get_tree+0x89/0x270 [ 47.561081][ T385] path_mount+0x1975/0x2ab0 [ 47.565648][ T385] ? mark_mounts_for_expiry+0x4b0/0x4b0 [ 47.571166][ T385] ? getname_flags+0x207/0x650 [ 47.575906][ T385] ? user_path_at_empty+0x40/0x50 [ 47.580907][ T385] __se_sys_mount+0x2f7/0x3b0 [ 47.585556][ T385] ? __x64_sys_mount+0xd0/0xd0 [ 47.590295][ T385] ? debug_smp_processor_id+0x1c/0x20 [ 47.595662][ T385] __x64_sys_mount+0xbf/0xd0 [ 47.600223][ T385] do_syscall_64+0x31/0x70 [ 47.604611][ T385] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 47.610484][ T385] RIP: 0033:0x7fb6577aafd9 [ 47.614869][ T385] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 47.634449][ T385] RSP: 002b:00007fff3432ea98 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 47.642835][ T385] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fb6577aafd9 executing program [ 47.650787][ T385] RDX: 0000000020000340 RSI: 0000000020000000 RDI: 00000000200002c0 [ 47.658737][ T385] RBP: 00007fff3432eac0 R08: 0000000000000000 R09: 00007fff3432ead0 [ 47.666766][ T385] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000003 [ 47.674710][ T385] R13: 00007fff3432eb00 R14: 00007fff3432eae0 R15: 0000000000000009 [ 47.683149][ T385] incfs: ino conflict with backing FS 1 [ 47.735138][ T387] FAULT_INJECTION: forcing a failure. [ 47.735138][ T387] name failslab, interval 1, probability 0, space 0, times 0 [ 47.747823][ T387] CPU: 1 PID: 387 Comm: syz-executor977 Tainted: G W 5.10.75-syzkaller-01082-g234d53d2bb60 #0 [ 47.759327][ T387] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 47.769352][ T387] Call Trace: [ 47.772679][ T387] dump_stack_lvl+0x1e2/0x24b [ 47.777338][ T387] ? show_regs_print_info+0x18/0x18 [ 47.782507][ T387] ? stack_trace_save+0x1e0/0x1e0 [ 47.787500][ T387] ? arch_stack_walk+0x106/0x140 [ 47.792409][ T387] dump_stack+0x15/0x1d [ 47.796553][ T387] should_fail+0x3c0/0x510 [ 47.800944][ T387] ? xas_create+0x651/0x1870 [ 47.805638][ T387] __should_failslab+0x9f/0xe0 [ 47.810371][ T387] should_failslab+0x9/0x20 [ 47.814844][ T387] kmem_cache_alloc+0x43/0x380 [ 47.819574][ T387] xas_create+0x651/0x1870 [ 47.823982][ T387] xas_store+0x9e/0x1ad0 [ 47.828195][ T387] ? xas_find_conflict+0x71b/0x830 [ 47.833289][ T387] __add_to_page_cache_locked+0x5f5/0xb70 [ 47.838979][ T387] ? replace_page_cache_page+0xb00/0xb00 [ 47.844581][ T387] ? workingset_activation+0x250/0x250 [ 47.850024][ T387] ? __alloc_pages_nodemask+0x3c8/0x820 [ 47.855543][ T387] add_to_page_cache_lru+0x123/0x290 [ 47.860798][ T387] ? add_to_page_cache_locked+0x40/0x40 [ 47.866312][ T387] ? __find_get_block_slow+0x12b/0x4e0 [ 47.871738][ T387] pagecache_get_page+0x725/0x9c0 [ 47.876732][ T387] grow_dev_page+0xba/0x4c0 [ 47.881216][ T387] __getblk_gfp+0x18d/0x2a0 [ 47.885689][ T387] fat_alloc_new_dir+0x27a/0xd70 [ 47.890596][ T387] ? __fat_remove_entries+0x4f0/0x4f0 [ 47.895940][ T387] ? __kasan_check_write+0x14/0x20 [ 47.901040][ T387] ? __d_lookup_rcu+0xc0/0x660 [ 47.905772][ T387] ? may_create+0x635/0x8b0 [ 47.910245][ T387] vfat_mkdir+0x176/0x420 [ 47.914545][ T387] ? vfat_unlink+0x3a0/0x3a0 [ 47.919108][ T387] ? selinux_inode_mkdir+0x22/0x30 [ 47.924189][ T387] ? security_inode_mkdir+0xf1/0x130 [ 47.929442][ T387] vfs_mkdir+0x435/0x610 [ 47.933656][ T387] open_or_create_special_dir+0xbf/0x150 [ 47.939257][ T387] incfs_mount_fs+0x3e9/0x840 [ 47.943903][ T387] ? incfs_unlink+0x80/0x80 [ 47.948659][ T387] ? selinux_capable+0x39/0x50 [ 47.953465][ T387] legacy_get_tree+0xf0/0x190 [ 47.958112][ T387] ? incfs_unlink+0x80/0x80 [ 47.962585][ T387] vfs_get_tree+0x89/0x270 [ 47.966970][ T387] path_mount+0x1975/0x2ab0 [ 47.971445][ T387] ? mark_mounts_for_expiry+0x4b0/0x4b0 [ 47.976968][ T387] ? getname_flags+0x207/0x650 [ 47.981702][ T387] ? user_path_at_empty+0x40/0x50 [ 47.986694][ T387] __se_sys_mount+0x2f7/0x3b0 [ 47.991353][ T387] ? __x64_sys_mount+0xd0/0xd0 [ 47.996087][ T387] ? debug_smp_processor_id+0x1c/0x20 [ 48.001516][ T387] __x64_sys_mount+0xbf/0xd0 [ 48.006075][ T387] do_syscall_64+0x31/0x70 [ 48.010462][ T387] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 48.016325][ T387] RIP: 0033:0x7fb6577aafd9 [ 48.020711][ T387] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 48.040284][ T387] RSP: 002b:00007fff3432ea98 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 48.048752][ T387] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fb6577aafd9 [ 48.056697][ T387] RDX: 0000000020000340 RSI: 0000000020000000 RDI: 00000000200002c0 [ 48.064684][ T387] RBP: 00007fff3432eac0 R08: 0000000000000000 R09: 00007fff3432ead0 [ 48.072631][ T387] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000003 executing program [ 48.080573][ T387] R13: 00007fff3432eb00 R14: 00007fff3432eae0 R15: 000000000000000a [ 48.091723][ T387] incfs: ino conflict with backing FS 1 [ 48.145830][ T389] FAULT_INJECTION: forcing a failure. [ 48.145830][ T389] name fail_page_alloc, interval 1, probability 0, space 0, times 0 [ 48.159072][ T389] CPU: 0 PID: 389 Comm: syz-executor977 Tainted: G W 5.10.75-syzkaller-01082-g234d53d2bb60 #0 [ 48.170583][ T389] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 48.180609][ T389] Call Trace: [ 48.183874][ T389] dump_stack_lvl+0x1e2/0x24b [ 48.188525][ T389] ? show_regs_print_info+0x18/0x18 [ 48.193700][ T389] dump_stack+0x15/0x1d [ 48.197832][ T389] should_fail+0x3c0/0x510 [ 48.202280][ T389] should_fail_alloc_page+0x4f/0x60 [ 48.207449][ T389] __alloc_pages_nodemask+0x1b9/0x820 [ 48.212792][ T389] ? __add_to_page_cache_locked+0xa4c/0xb70 [ 48.218655][ T389] ? gfp_pfmemalloc_allowed+0x120/0x120 [ 48.224174][ T389] ? replace_page_cache_page+0xb00/0xb00 [ 48.229794][ T389] allocate_slab+0x6b/0x350 [ 48.234266][ T389] ___slab_alloc+0x143/0x2f0 [ 48.238828][ T389] ? alloc_buffer_head+0x26/0x110 [ 48.243829][ T389] kmem_cache_alloc+0x26f/0x380 [ 48.248654][ T389] ? alloc_buffer_head+0x26/0x110 [ 48.253649][ T389] alloc_buffer_head+0x26/0x110 [ 48.258486][ T389] alloc_page_buffers+0x138/0x4b0 [ 48.263491][ T389] grow_dev_page+0x276/0x4c0 [ 48.268061][ T389] __getblk_gfp+0x18d/0x2a0 [ 48.272547][ T389] fat_alloc_new_dir+0x27a/0xd70 [ 48.277461][ T389] ? __fat_remove_entries+0x4f0/0x4f0 [ 48.282814][ T389] ? __kasan_check_write+0x14/0x20 [ 48.287909][ T389] ? __d_lookup_rcu+0xc0/0x660 [ 48.292645][ T389] ? may_create+0x635/0x8b0 [ 48.297121][ T389] vfat_mkdir+0x176/0x420 [ 48.301426][ T389] ? vfat_unlink+0x3a0/0x3a0 [ 48.306015][ T389] ? selinux_inode_mkdir+0x22/0x30 [ 48.311095][ T389] ? security_inode_mkdir+0xf1/0x130 [ 48.316362][ T389] vfs_mkdir+0x435/0x610 [ 48.320577][ T389] open_or_create_special_dir+0xbf/0x150 [ 48.326208][ T389] incfs_mount_fs+0x3e9/0x840 [ 48.330864][ T389] ? incfs_unlink+0x80/0x80 [ 48.335628][ T389] ? selinux_capable+0x39/0x50 [ 48.340369][ T389] legacy_get_tree+0xf0/0x190 [ 48.345028][ T389] ? incfs_unlink+0x80/0x80 [ 48.349506][ T389] vfs_get_tree+0x89/0x270 [ 48.353896][ T389] path_mount+0x1975/0x2ab0 [ 48.358373][ T389] ? mark_mounts_for_expiry+0x4b0/0x4b0 [ 48.363889][ T389] ? getname_flags+0x207/0x650 [ 48.368635][ T389] ? user_path_at_empty+0x40/0x50 [ 48.373647][ T389] __se_sys_mount+0x2f7/0x3b0 [ 48.378296][ T389] ? __x64_sys_mount+0xd0/0xd0 [ 48.383138][ T389] ? debug_smp_processor_id+0x1c/0x20 [ 48.388485][ T389] __x64_sys_mount+0xbf/0xd0 [ 48.393044][ T389] do_syscall_64+0x31/0x70 [ 48.397434][ T389] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 48.403296][ T389] RIP: 0033:0x7fb6577aafd9 [ 48.407681][ T389] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 48.427256][ T389] RSP: 002b:00007fff3432ea98 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 48.435819][ T389] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fb6577aafd9 [ 48.443777][ T389] RDX: 0000000020000340 RSI: 0000000020000000 RDI: 00000000200002c0 [ 48.451735][ T389] RBP: 00007fff3432eac0 R08: 0000000000000000 R09: 00007fff3432ead0 [ 48.459766][ T389] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000003 [ 48.467711][ T389] R13: 00007fff3432eb00 R14: 00007fff3432eae0 R15: 000000000000000b [ 48.476029][ T389] incfs: ino conflict with backing FS 1 executing program [ 48.545611][ T391] FAULT_INJECTION: forcing a failure. [ 48.545611][ T391] name failslab, interval 1, probability 0, space 0, times 0 [ 48.558283][ T391] CPU: 1 PID: 391 Comm: syz-executor977 Tainted: G W 5.10.75-syzkaller-01082-g234d53d2bb60 #0 [ 48.569814][ T391] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 48.579894][ T391] Call Trace: [ 48.583169][ T391] dump_stack_lvl+0x1e2/0x24b [ 48.587840][ T391] ? show_regs_print_info+0x18/0x18 [ 48.593013][ T391] dump_stack+0x15/0x1d [ 48.597140][ T391] should_fail+0x3c0/0x510 [ 48.601536][ T391] ? vfat_add_entry+0x357/0x3850 [ 48.606458][ T391] __should_failslab+0x9f/0xe0 [ 48.611193][ T391] should_failslab+0x9/0x20 [ 48.615671][ T391] kmem_cache_alloc+0x43/0x380 [ 48.620407][ T391] vfat_add_entry+0x357/0x3850 [ 48.625142][ T391] ? __mod_memcg_state+0xb4/0x230 [ 48.630137][ T391] ? __kasan_check_write+0x14/0x20 [ 48.635227][ T391] ? percpu_counter_add_batch+0x14b/0x170 [ 48.640919][ T391] ? vfat_rename+0xff0/0xff0 [ 48.645481][ T391] ? __kasan_check_write+0x14/0x20 [ 48.650561][ T391] ? __brelse+0x5a/0xa0 [ 48.654686][ T391] ? fat_zeroed_cluster+0x82a/0x8a0 [ 48.659855][ T391] ? mark_buffer_dirty+0x1e3/0x310 [ 48.664935][ T391] ? _raw_spin_unlock+0x4d/0x70 [ 48.669843][ T391] ? fat_alloc_new_dir+0x857/0xd70 [ 48.674942][ T391] ? __fat_remove_entries+0x4f0/0x4f0 [ 48.680291][ T391] ? 0xffffffff81000000 [ 48.684419][ T391] ? __d_lookup_rcu+0xc0/0x660 [ 48.689154][ T391] ? may_create+0x635/0x8b0 [ 48.693627][ T391] vfat_mkdir+0x1a8/0x420 [ 48.697927][ T391] ? vfat_unlink+0x3a0/0x3a0 [ 48.702493][ T391] ? selinux_inode_mkdir+0x22/0x30 [ 48.707584][ T391] ? security_inode_mkdir+0xf1/0x130 [ 48.712857][ T391] vfs_mkdir+0x435/0x610 [ 48.717073][ T391] open_or_create_special_dir+0xbf/0x150 [ 48.722676][ T391] incfs_mount_fs+0x3e9/0x840 [ 48.727340][ T391] ? incfs_unlink+0x80/0x80 [ 48.731825][ T391] ? selinux_capable+0x39/0x50 [ 48.736576][ T391] legacy_get_tree+0xf0/0x190 [ 48.741220][ T391] ? incfs_unlink+0x80/0x80 [ 48.745694][ T391] vfs_get_tree+0x89/0x270 [ 48.750123][ T391] path_mount+0x1975/0x2ab0 [ 48.754607][ T391] ? mark_mounts_for_expiry+0x4b0/0x4b0 [ 48.760122][ T391] ? getname_flags+0x207/0x650 [ 48.764854][ T391] ? user_path_at_empty+0x40/0x50 [ 48.769862][ T391] __se_sys_mount+0x2f7/0x3b0 [ 48.774512][ T391] ? __x64_sys_mount+0xd0/0xd0 [ 48.779249][ T391] ? debug_smp_processor_id+0x1c/0x20 [ 48.784609][ T391] __x64_sys_mount+0xbf/0xd0 [ 48.789212][ T391] do_syscall_64+0x31/0x70 [ 48.793599][ T391] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 48.799462][ T391] RIP: 0033:0x7fb6577aafd9 [ 48.803865][ T391] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 48.823439][ T391] RSP: 002b:00007fff3432ea98 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 48.831827][ T391] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fb6577aafd9 [ 48.839900][ T391] RDX: 0000000020000340 RSI: 0000000020000000 RDI: 00000000200002c0 [ 48.847846][ T391] RBP: 00007fff3432eac0 R08: 0000000000000000 R09: 00007fff3432ead0 [ 48.855989][ T391] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000003 [ 48.863933][ T391] R13: 00007fff3432eb00 R14: 00007fff3432eae0 R15: 000000000000000c [ 48.871990][ T391] incfs: Can't find or create .index dir in ./file0 [ 48.879916][ T365] BUG: Dentry ffff88811a22aee0{i=0,n=.index} still in use (1) [unmount of vfat loop0] [ 48.889755][ T365] ------------[ cut here ]------------ [ 48.895317][ T365] WARNING: CPU: 0 PID: 365 at fs/dcache.c:1616 umount_check+0x18d/0x1d0 [ 48.903749][ T365] Modules linked in: [ 48.907637][ T365] CPU: 0 PID: 365 Comm: syz-executor977 Tainted: G W 5.10.75-syzkaller-01082-g234d53d2bb60 #0 [ 48.919224][ T365] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 48.929335][ T365] RIP: 0010:umount_check+0x18d/0x1d0 [ 48.934615][ T365] Code: 8b 0b 49 81 c6 f8 03 00 00 48 c7 c7 40 43 2e 85 4c 89 e6 48 8b 55 d0 4c 89 e1 45 89 f8 31 c0 41 56 e8 ae d9 9e ff 48 83 c4 08 <0f> 0b e9 f1 fe ff ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c c9 fe ff [ 48.954228][ T365] RSP: 0018:ffffc90000bf7c78 EFLAGS: 00010286 [ 48.960275][ T365] RAX: 0000000000000054 RBX: ffffffff866b3380 RCX: 9f8f4fd1ceadc900 [ 48.968295][ T365] RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000000 [ 48.976275][ T365] RBP: ffffc90000bf7ca8 R08: ffffffff81545368 R09: ffffed103ee095d8 [ 48.984253][ T365] R10: ffffed103ee095d8 R11: 0000000000000000 R12: ffff88811a22aee0 [ 48.992245][ T365] R13: dffffc0000000000 R14: ffff88810a3a83f8 R15: 0000000000000001 [ 49.000205][ T365] FS: 000055555592b300(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 49.009141][ T365] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 49.015726][ T365] CR2: 0000555555934628 CR3: 00000001079f8000 CR4: 00000000003506b0 [ 49.023709][ T365] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 49.031708][ T365] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 49.039702][ T365] Call Trace: [ 49.042994][ T365] d_walk+0x309/0x540 [ 49.046967][ T365] ? __d_free+0x30/0x30 [ 49.051104][ T365] shrink_dcache_for_umount+0x8e/0x1b0 [ 49.056560][ T365] generic_shutdown_super+0x66/0x2c0 [ 49.061837][ T365] kill_block_super+0x80/0xe0 [ 49.066483][ T365] deactivate_locked_super+0xb0/0x100 [ 49.071864][ T365] deactivate_super+0xa5/0xd0 [ 49.076520][ T365] cleanup_mnt+0x45f/0x510 [ 49.080906][ T365] __cleanup_mnt+0x19/0x20 [ 49.085323][ T365] task_work_run+0x147/0x1b0 [ 49.089907][ T365] exit_to_user_mode_prepare+0xc3/0xe0 [ 49.095379][ T365] syscall_exit_to_user_mode+0x24/0x40 [ 49.100823][ T365] do_syscall_64+0x3d/0x70 [ 49.105240][ T365] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 49.111110][ T365] RIP: 0033:0x7fb6577ac377 [ 49.115523][ T365] Code: 07 00 48 83 c4 08 5b 5d c3 66 2e 0f 1f 84 00 00 00 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 a6 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 49.135132][ T365] RSP: 002b:00007fff3432d9a8 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6 [ 49.143544][ T365] RAX: 0000000000000000 RBX: 000000000000bd8a RCX: 00007fb6577ac377 [ 49.151519][ T365] RDX: 00007fff3432da6a RSI: 0000000000000002 RDI: 00007fff3432da60 [ 49.159463][ T365] RBP: 00007fff3432da60 R08: 00000000ffffffff R09: 00007fff3432d840 [ 49.167447][ T365] R10: 000055555592c633 R11: 0000000000000202 R12: 00007fff3432eae0 [ 49.175410][ T365] R13: 000055555592c5f0 R14: 00007fff3432d9d0 R15: 000000000000000d [ 49.183376][ T365] ---[ end trace a965d9ac4e98a33a ]--- [ 49.189175][ T365] VFS: Busy inodes after unmount of loop0. Self-destruct in 5 seconds. Have a nice day... executing program [ 49.265510][ T393] FAULT_INJECTION: forcing a failure. [ 49.265510][ T393] name failslab, interval 1, probability 0, space 0, times 0 [ 49.278144][ T393] CPU: 0 PID: 393 Comm: syz-executor977 Tainted: G W 5.10.75-syzkaller-01082-g234d53d2bb60 #0 [ 49.289655][ T393] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 49.299694][ T393] Call Trace: [ 49.302960][ T393] dump_stack_lvl+0x1e2/0x24b [ 49.307608][ T393] ? show_regs_print_info+0x18/0x18 [ 49.312783][ T393] ? is_module_text_address+0xe1/0x140 [ 49.318257][ T393] ? stack_trace_save+0x1e0/0x1e0 [ 49.323252][ T393] dump_stack+0x15/0x1d [ 49.327379][ T393] should_fail+0x3c0/0x510 [ 49.331766][ T393] ? mempool_alloc_slab+0x1d/0x30 [ 49.336760][ T393] __should_failslab+0x9f/0xe0 [ 49.341494][ T393] should_failslab+0x9/0x20 [ 49.345970][ T393] kmem_cache_alloc+0x43/0x380 [ 49.350703][ T393] ? mempool_free+0x310/0x310 [ 49.355348][ T393] mempool_alloc_slab+0x1d/0x30 [ 49.360194][ T393] mempool_alloc+0x113/0x650 [ 49.364932][ T393] ? __kasan_check_read+0x11/0x20 [ 49.369932][ T393] ? __page_pinner_migration_failed+0xdd/0x250 [ 49.376056][ T393] ? mempool_resize+0x8e0/0x8e0 [ 49.380926][ T393] ? _raw_spin_trylock_bh+0x1a0/0x1a0 [ 49.386268][ T393] ? pagecache_get_page+0x907/0x9c0 [ 49.391439][ T393] bio_alloc_bioset+0x1db/0x650 [ 49.396260][ T393] ? __kasan_check_write+0x14/0x20 [ 49.401341][ T393] ? __find_get_block+0xa6b/0xbd0 [ 49.406338][ T393] ? bio_chain_endio+0x120/0x120 [ 49.411249][ T393] ? write_boundary_block+0x150/0x150 [ 49.416594][ T393] ? __rcu_read_lock+0x50/0x50 [ 49.421332][ T393] submit_bh_wbc+0x1cb/0x740 [ 49.425912][ T393] __bread_gfp+0x187/0x320 [ 49.430300][ T393] fat12_ent_bread+0x17f/0x510 [ 49.435032][ T393] ? fat12_ent_blocknr+0xb4/0x1e0 [ 49.440026][ T393] ? fat12_ent_set_ptr+0x270/0x270 [ 49.445152][ T393] fat_alloc_clusters+0x887/0x1660 [ 49.450271][ T393] ? __rcu_read_lock+0x50/0x50 [ 49.455010][ T393] ? fat_mirror_bhs+0x480/0x480 [ 49.459833][ T393] ? memcpy+0x56/0x70 [ 49.463786][ T393] fat_alloc_new_dir+0x19e/0xd70 [ 49.468696][ T393] ? __fat_remove_entries+0x4f0/0x4f0 [ 49.474046][ T393] ? __kasan_check_write+0x14/0x20 [ 49.479133][ T393] ? __d_lookup_rcu+0xc0/0x660 [ 49.483901][ T393] ? may_create+0x635/0x8b0 [ 49.488377][ T393] vfat_mkdir+0x176/0x420 [ 49.492766][ T393] ? vfat_unlink+0x3a0/0x3a0 [ 49.497328][ T393] ? selinux_inode_mkdir+0x22/0x30 [ 49.502415][ T393] ? security_inode_mkdir+0xf1/0x130 [ 49.507668][ T393] vfs_mkdir+0x435/0x610 [ 49.511931][ T393] open_or_create_special_dir+0xbf/0x150 [ 49.517533][ T393] incfs_mount_fs+0x3e9/0x840 [ 49.522185][ T393] ? incfs_unlink+0x80/0x80 [ 49.526676][ T393] ? selinux_capable+0x39/0x50 [ 49.531419][ T393] legacy_get_tree+0xf0/0x190 [ 49.536069][ T393] ? incfs_unlink+0x80/0x80 [ 49.540552][ T393] vfs_get_tree+0x89/0x270 [ 49.544944][ T393] path_mount+0x1975/0x2ab0 [ 49.549425][ T393] ? mark_mounts_for_expiry+0x4b0/0x4b0 [ 49.554945][ T393] ? getname_flags+0x207/0x650 [ 49.559682][ T393] ? user_path_at_empty+0x40/0x50 [ 49.564681][ T393] __se_sys_mount+0x2f7/0x3b0 [ 49.569332][ T393] ? __x64_sys_mount+0xd0/0xd0 [ 49.574073][ T393] ? debug_smp_processor_id+0x1c/0x20 [ 49.579420][ T393] __x64_sys_mount+0xbf/0xd0 [ 49.583984][ T393] do_syscall_64+0x31/0x70 [ 49.588375][ T393] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 49.594246][ T393] RIP: 0033:0x7fb6577aafd9 [ 49.598637][ T393] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 49.618214][ T393] RSP: 002b:00007fff3432ea98 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 49.626606][ T393] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fb6577aafd9 [ 49.634572][ T393] RDX: 0000000020000340 RSI: 0000000020000000 RDI: 00000000200002c0 [ 49.642520][ T393] RBP: 00007fff3432eac0 R08: 0000000000000000 R09: 00007fff3432ead0 [ 49.650466][ T393] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000003 [ 49.658417][ T393] R13: 00007fff3432eb00 R14: 00007fff3432eae0 R15: 000000000000000d [ 49.669718][ T393] incfs: ino conflict with backing FS 1 executing program [ 49.744751][ T395] FAULT_INJECTION: forcing a failure. [ 49.744751][ T395] name failslab, interval 1, probability 0, space 0, times 0 [ 49.757344][ T395] CPU: 0 PID: 395 Comm: syz-executor977 Tainted: G W 5.10.75-syzkaller-01082-g234d53d2bb60 #0 [ 49.768849][ T395] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 49.778885][ T395] Call Trace: [ 49.782157][ T395] dump_stack_lvl+0x1e2/0x24b [ 49.786805][ T395] ? show_regs_print_info+0x18/0x18 [ 49.791978][ T395] ? stack_trace_save+0x1e0/0x1e0 [ 49.797013][ T395] ? arch_stack_walk+0x106/0x140 [ 49.801920][ T395] dump_stack+0x15/0x1d [ 49.806178][ T395] should_fail+0x3c0/0x510 [ 49.810567][ T395] ? xas_create+0x651/0x1870 [ 49.815130][ T395] __should_failslab+0x9f/0xe0 [ 49.819881][ T395] should_failslab+0x9/0x20 [ 49.824354][ T395] kmem_cache_alloc+0x43/0x380 [ 49.829089][ T395] xas_create+0x651/0x1870 [ 49.833474][ T395] xas_store+0x9e/0x1ad0 [ 49.837686][ T395] ? xas_find_conflict+0x71b/0x830 [ 49.842769][ T395] __add_to_page_cache_locked+0x5f5/0xb70 [ 49.848461][ T395] ? replace_page_cache_page+0xb00/0xb00 [ 49.854076][ T395] ? workingset_activation+0x250/0x250 [ 49.859503][ T395] ? __alloc_pages_nodemask+0x3c8/0x820 [ 49.865015][ T395] add_to_page_cache_lru+0x123/0x290 [ 49.870270][ T395] ? add_to_page_cache_locked+0x40/0x40 [ 49.875785][ T395] ? __find_get_block_slow+0x12b/0x4e0 [ 49.881211][ T395] pagecache_get_page+0x725/0x9c0 [ 49.886205][ T395] grow_dev_page+0xba/0x4c0 [ 49.890678][ T395] __getblk_gfp+0x18d/0x2a0 [ 49.895152][ T395] fat_alloc_new_dir+0x27a/0xd70 [ 49.900061][ T395] ? __fat_remove_entries+0x4f0/0x4f0 [ 49.905402][ T395] ? __kasan_check_write+0x14/0x20 [ 49.910482][ T395] ? __d_lookup_rcu+0xc0/0x660 [ 49.915216][ T395] ? may_create+0x635/0x8b0 [ 49.919693][ T395] vfat_mkdir+0x176/0x420 [ 49.923993][ T395] ? vfat_unlink+0x3a0/0x3a0 [ 49.928556][ T395] ? selinux_inode_mkdir+0x22/0x30 [ 49.933637][ T395] ? security_inode_mkdir+0xf1/0x130 [ 49.938892][ T395] vfs_mkdir+0x435/0x610 [ 49.943106][ T395] open_or_create_special_dir+0xbf/0x150 [ 49.948709][ T395] incfs_mount_fs+0x3e9/0x840 [ 49.953361][ T395] ? incfs_unlink+0x80/0x80 [ 49.957835][ T395] ? selinux_capable+0x39/0x50 [ 49.962570][ T395] legacy_get_tree+0xf0/0x190 [ 49.967220][ T395] ? incfs_unlink+0x80/0x80 [ 49.971691][ T395] vfs_get_tree+0x89/0x270 [ 49.976090][ T395] path_mount+0x1975/0x2ab0 [ 49.980565][ T395] ? mark_mounts_for_expiry+0x4b0/0x4b0 [ 49.986080][ T395] ? getname_flags+0x207/0x650 [ 49.990813][ T395] ? user_path_at_empty+0x40/0x50 [ 49.995807][ T395] __se_sys_mount+0x2f7/0x3b0 [ 50.000455][ T395] ? __x64_sys_mount+0xd0/0xd0 [ 50.005190][ T395] ? debug_smp_processor_id+0x1c/0x20 [ 50.010532][ T395] __x64_sys_mount+0xbf/0xd0 [ 50.015099][ T395] do_syscall_64+0x31/0x70 [ 50.019486][ T395] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 50.025349][ T395] RIP: 0033:0x7fb6577aafd9 [ 50.029739][ T395] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 50.049315][ T395] RSP: 002b:00007fff3432ea98 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 50.057697][ T395] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fb6577aafd9 [ 50.065643][ T395] RDX: 0000000020000340 RSI: 0000000020000000 RDI: 00000000200002c0 [ 50.073586][ T395] RBP: 00007fff3432eac0 R08: 0000000000000000 R09: 00007fff3432ead0 [ 50.081620][ T395] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000003 executing program [ 50.089563][ T395] R13: 00007fff3432eb00 R14: 00007fff3432eae0 R15: 000000000000000e [ 50.100204][ T395] incfs: ino conflict with backing FS 1 [ 50.135028][ T397] FAULT_INJECTION: forcing a failure. [ 50.135028][ T397] name failslab, interval 1, probability 0, space 0, times 0 [ 50.147618][ T397] CPU: 0 PID: 397 Comm: syz-executor977 Tainted: G W 5.10.75-syzkaller-01082-g234d53d2bb60 #0 [ 50.159136][ T397] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 50.169168][ T397] Call Trace: [ 50.172445][ T397] dump_stack_lvl+0x1e2/0x24b [ 50.177119][ T397] ? show_regs_print_info+0x18/0x18 [ 50.182290][ T397] ? stack_trace_save+0x1e0/0x1e0 [ 50.187287][ T397] ? arch_stack_walk+0x106/0x140 [ 50.192197][ T397] dump_stack+0x15/0x1d [ 50.196339][ T397] should_fail+0x3c0/0x510 [ 50.200725][ T397] ? xas_create+0x651/0x1870 [ 50.205284][ T397] __should_failslab+0x9f/0xe0 [ 50.210019][ T397] should_failslab+0x9/0x20 [ 50.214507][ T397] kmem_cache_alloc+0x43/0x380 [ 50.219252][ T397] xas_create+0x651/0x1870 [ 50.223637][ T397] xas_store+0x9e/0x1ad0 [ 50.227848][ T397] ? xas_find_conflict+0x71b/0x830 [ 50.232927][ T397] __add_to_page_cache_locked+0x5f5/0xb70 [ 50.238626][ T397] ? replace_page_cache_page+0xb00/0xb00 [ 50.244227][ T397] ? workingset_activation+0x250/0x250 [ 50.249655][ T397] ? __alloc_pages_nodemask+0x3c8/0x820 [ 50.255185][ T397] add_to_page_cache_lru+0x123/0x290 [ 50.260448][ T397] ? add_to_page_cache_locked+0x40/0x40 [ 50.265965][ T397] ? __find_get_block_slow+0x12b/0x4e0 [ 50.271390][ T397] pagecache_get_page+0x725/0x9c0 [ 50.276388][ T397] grow_dev_page+0xba/0x4c0 [ 50.280860][ T397] __getblk_gfp+0x18d/0x2a0 [ 50.285420][ T397] fat_alloc_new_dir+0x27a/0xd70 [ 50.290332][ T397] ? __fat_remove_entries+0x4f0/0x4f0 [ 50.295674][ T397] ? __kasan_check_write+0x14/0x20 [ 50.300755][ T397] ? __d_lookup_rcu+0xc0/0x660 [ 50.305504][ T397] ? may_create+0x635/0x8b0 [ 50.309990][ T397] vfat_mkdir+0x176/0x420 [ 50.314306][ T397] ? vfat_unlink+0x3a0/0x3a0 [ 50.318883][ T397] ? selinux_inode_mkdir+0x22/0x30 [ 50.323980][ T397] ? security_inode_mkdir+0xf1/0x130 [ 50.329237][ T397] vfs_mkdir+0x435/0x610 [ 50.333455][ T397] open_or_create_special_dir+0xbf/0x150 [ 50.339056][ T397] incfs_mount_fs+0x3e9/0x840 [ 50.343706][ T397] ? incfs_unlink+0x80/0x80 [ 50.348180][ T397] ? selinux_capable+0x39/0x50 [ 50.352915][ T397] legacy_get_tree+0xf0/0x190 [ 50.357563][ T397] ? incfs_unlink+0x80/0x80 [ 50.362036][ T397] vfs_get_tree+0x89/0x270 [ 50.366425][ T397] path_mount+0x1975/0x2ab0 [ 50.370911][ T397] ? mark_mounts_for_expiry+0x4b0/0x4b0 [ 50.376425][ T397] ? getname_flags+0x207/0x650 [ 50.382026][ T397] ? user_path_at_empty+0x40/0x50 [ 50.387023][ T397] __se_sys_mount+0x2f7/0x3b0 [ 50.391669][ T397] ? __x64_sys_mount+0xd0/0xd0 [ 50.396404][ T397] ? debug_smp_processor_id+0x1c/0x20 [ 50.401742][ T397] __x64_sys_mount+0xbf/0xd0 [ 50.406306][ T397] do_syscall_64+0x31/0x70 [ 50.410690][ T397] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 50.416551][ T397] RIP: 0033:0x7fb6577aafd9 [ 50.420938][ T397] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 50.440532][ T397] RSP: 002b:00007fff3432ea98 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 50.448913][ T397] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fb6577aafd9 [ 50.456854][ T397] RDX: 0000000020000340 RSI: 0000000020000000 RDI: 00000000200002c0 [ 50.464796][ T397] RBP: 00007fff3432eac0 R08: 0000000000000000 R09: 00007fff3432ead0 [ 50.472756][ T397] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000003 [ 50.480701][ T397] R13: 00007fff3432eb00 R14: 00007fff3432eae0 R15: 000000000000000f executing program [ 50.490194][ T23] audit: type=1400 audit(1635024201.919:83): avc: denied { remove_name } for pid=142 comm="syslogd" name="messages" dev="tmpfs" ino=2 scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1 [ 50.496543][ T397] incfs: ino conflict with backing FS 1 [ 50.514184][ T23] audit: type=1400 audit(1635024201.919:84): avc: denied { rename } for pid=142 comm="syslogd" name="messages" dev="tmpfs" ino=2 scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:tmpfs_t tclass=file permissive=1 [ 50.581148][ T399] FAULT_INJECTION: forcing a failure. [ 50.581148][ T399] name failslab, interval 1, probability 0, space 0, times 0 [ 50.593815][ T399] CPU: 0 PID: 399 Comm: syz-executor977 Tainted: G W 5.10.75-syzkaller-01082-g234d53d2bb60 #0 [ 50.605330][ T399] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 50.615356][ T399] Call Trace: [ 50.618624][ T399] dump_stack_lvl+0x1e2/0x24b [ 50.623277][ T399] ? show_regs_print_info+0x18/0x18 [ 50.628451][ T399] dump_stack+0x15/0x1d [ 50.632577][ T399] should_fail+0x3c0/0x510 [ 50.636964][ T399] ? vfat_add_entry+0x206/0x3850 [ 50.641871][ T399] __should_failslab+0x9f/0xe0 [ 50.646664][ T399] should_failslab+0x9/0x20 [ 50.651173][ T399] kmem_cache_alloc_trace+0x42/0x3a0 [ 50.656429][ T399] ? __kasan_check_read+0x11/0x20 [ 50.661423][ T399] ? __page_pinner_migration_failed+0xdd/0x250 [ 50.667549][ T399] vfat_add_entry+0x206/0x3850 [ 50.672289][ T399] ? __mod_memcg_state+0xb4/0x230 [ 50.677292][ T399] ? __kasan_check_write+0x14/0x20 [ 50.682373][ T399] ? percpu_counter_add_batch+0x14b/0x170 [ 50.688062][ T399] ? __rcu_read_lock+0x50/0x50 [ 50.692844][ T399] ? __add_wb_stat+0x5f/0x90 [ 50.697407][ T399] ? vfat_rename+0xff0/0xff0 [ 50.701966][ T399] ? __kasan_check_write+0x14/0x20 [ 50.707046][ T399] ? __brelse+0x5a/0xa0 [ 50.711172][ T399] ? fat_zeroed_cluster+0x82a/0x8a0 [ 50.716340][ T399] ? mark_buffer_dirty+0x1e3/0x310 [ 50.721420][ T399] ? _raw_spin_unlock+0x4d/0x70 [ 50.726240][ T399] ? fat_alloc_new_dir+0x857/0xd70 [ 50.731319][ T399] ? __fat_remove_entries+0x4f0/0x4f0 [ 50.736663][ T399] ? __kasan_check_write+0x14/0x20 [ 50.741744][ T399] ? find_inode_fast+0xaa/0x4b0 [ 50.746563][ T399] ? may_create+0x635/0x8b0 [ 50.751035][ T399] vfat_mkdir+0x1a8/0x420 [ 50.755348][ T399] ? vfat_unlink+0x3a0/0x3a0 [ 50.759907][ T399] ? selinux_inode_mkdir+0x22/0x30 [ 50.764990][ T399] ? security_inode_mkdir+0xf1/0x130 [ 50.770243][ T399] vfs_mkdir+0x435/0x610 [ 50.774464][ T399] open_or_create_special_dir+0xbf/0x150 [ 50.780141][ T399] incfs_mount_fs+0x3e9/0x840 [ 50.784817][ T399] ? incfs_unlink+0x80/0x80 [ 50.789302][ T399] ? selinux_capable+0x39/0x50 [ 50.794045][ T399] legacy_get_tree+0xf0/0x190 [ 50.798704][ T399] ? incfs_unlink+0x80/0x80 [ 50.803188][ T399] vfs_get_tree+0x89/0x270 [ 50.807581][ T399] path_mount+0x1975/0x2ab0 [ 50.812064][ T399] ? mark_mounts_for_expiry+0x4b0/0x4b0 [ 50.817602][ T399] ? getname_flags+0x207/0x650 [ 50.822346][ T399] ? user_path_at_empty+0x40/0x50 [ 50.827413][ T399] __se_sys_mount+0x2f7/0x3b0 [ 50.832069][ T399] ? __x64_sys_mount+0xd0/0xd0 [ 50.836809][ T399] ? debug_smp_processor_id+0x1c/0x20 [ 50.842171][ T399] __x64_sys_mount+0xbf/0xd0 [ 50.846736][ T399] do_syscall_64+0x31/0x70 [ 50.851127][ T399] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 50.856992][ T399] RIP: 0033:0x7fb6577aafd9 [ 50.861384][ T399] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 50.880961][ T399] RSP: 002b:00007fff3432ea98 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 50.889357][ T399] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fb6577aafd9 [ 50.897303][ T399] RDX: 0000000020000340 RSI: 0000000020000000 RDI: 00000000200002c0 [ 50.905250][ T399] RBP: 00007fff3432eac0 R08: 0000000000000000 R09: 00007fff3432ead0 [ 50.913196][ T399] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000003 [ 50.921151][ T399] R13: 00007fff3432eb00 R14: 00007fff3432eae0 R15: 0000000000000010 [ 50.929208][ T399] incfs: Can't find or create .index dir in ./file0 [ 50.937069][ T365] BUG: Dentry ffff88811a230550{i=0,n=.index} still in use (1) [unmount of vfat loop0] [ 50.946749][ T365] ------------[ cut here ]------------ [ 50.952251][ T365] WARNING: CPU: 0 PID: 365 at fs/dcache.c:1616 umount_check+0x18d/0x1d0 [ 50.960555][ T365] Modules linked in: [ 50.964467][ T365] CPU: 0 PID: 365 Comm: syz-executor977 Tainted: G W 5.10.75-syzkaller-01082-g234d53d2bb60 #0 [ 50.975998][ T365] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 50.986069][ T365] RIP: 0010:umount_check+0x18d/0x1d0 [ 50.991367][ T365] Code: 8b 0b 49 81 c6 f8 03 00 00 48 c7 c7 40 43 2e 85 4c 89 e6 48 8b 55 d0 4c 89 e1 45 89 f8 31 c0 41 56 e8 ae d9 9e ff 48 83 c4 08 <0f> 0b e9 f1 fe ff ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c c9 fe ff [ 51.010972][ T365] RSP: 0018:ffffc90000bf7c78 EFLAGS: 00010286 [ 51.017055][ T365] RAX: 0000000000000054 RBX: ffffffff866b3380 RCX: 9f8f4fd1ceadc900 [ 51.025024][ T365] RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000000 [ 51.033016][ T365] RBP: ffffc90000bf7ca8 R08: ffffffff81545368 R09: ffffed103ee095d8 [ 51.040971][ T365] R10: ffffed103ee095d8 R11: 0000000000000000 R12: ffff88811a230550 [ 51.048965][ T365] R13: dffffc0000000000 R14: ffff88810a6e23f8 R15: 0000000000000001 [ 51.056953][ T365] FS: 000055555592b300(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 51.065889][ T365] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 51.072471][ T365] CR2: 0000555555934628 CR3: 00000001079f8000 CR4: 00000000003506b0 [ 51.080424][ T365] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 51.088394][ T365] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 51.096358][ T365] Call Trace: [ 51.099627][ T365] d_walk+0x309/0x540 [ 51.103605][ T365] ? __d_free+0x30/0x30 [ 51.107752][ T365] shrink_dcache_for_umount+0x8e/0x1b0 [ 51.113234][ T365] generic_shutdown_super+0x66/0x2c0 [ 51.118593][ T365] kill_block_super+0x80/0xe0 [ 51.123288][ T365] deactivate_locked_super+0xb0/0x100 [ 51.128725][ T365] deactivate_super+0xa5/0xd0 [ 51.133416][ T365] cleanup_mnt+0x45f/0x510 [ 51.137810][ T365] __cleanup_mnt+0x19/0x20 [ 51.142223][ T365] task_work_run+0x147/0x1b0 [ 51.146803][ T365] exit_to_user_mode_prepare+0xc3/0xe0 [ 51.152265][ T365] syscall_exit_to_user_mode+0x24/0x40 [ 51.157708][ T365] do_syscall_64+0x3d/0x70 [ 51.162125][ T365] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 51.168003][ T365] RIP: 0033:0x7fb6577ac377 [ 51.172417][ T365] Code: 07 00 48 83 c4 08 5b 5d c3 66 2e 0f 1f 84 00 00 00 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 a6 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 51.192025][ T365] RSP: 002b:00007fff3432d9a8 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6 [ 51.200414][ T365] RAX: 0000000000000000 RBX: 000000000000c57e RCX: 00007fb6577ac377 [ 51.208406][ T365] RDX: 00007fff3432da6a RSI: 0000000000000002 RDI: 00007fff3432da60 [ 51.216386][ T365] RBP: 00007fff3432da60 R08: 00000000ffffffff R09: 00007fff3432d840 [ 51.224369][ T365] R10: 000055555592c633 R11: 0000000000000202 R12: 00007fff3432eae0 [ 51.232339][ T365] R13: 000055555592c5f0 R14: 00007fff3432d9d0 R15: 0000000000000011 [ 51.240302][ T365] ---[ end trace a965d9ac4e98a33b ]--- [ 51.246109][ T365] VFS: Busy inodes after unmount of loop0. Self-destruct in 5 seconds. Have a nice day... executing program [ 51.310003][ T401] FAULT_INJECTION: forcing a failure. [ 51.310003][ T401] name failslab, interval 1, probability 0, space 0, times 0 [ 51.322792][ T401] CPU: 0 PID: 401 Comm: syz-executor977 Tainted: G W 5.10.75-syzkaller-01082-g234d53d2bb60 #0 [ 51.334313][ T401] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 51.344340][ T401] Call Trace: [ 51.347606][ T401] dump_stack_lvl+0x1e2/0x24b [ 51.352265][ T401] ? show_regs_print_info+0x18/0x18 [ 51.357439][ T401] dump_stack+0x15/0x1d [ 51.361569][ T401] should_fail+0x3c0/0x510 [ 51.365963][ T401] ? vfat_add_entry+0x206/0x3850 [ 51.370875][ T401] __should_failslab+0x9f/0xe0 [ 51.375668][ T401] should_failslab+0x9/0x20 [ 51.380144][ T401] kmem_cache_alloc_trace+0x42/0x3a0 [ 51.385398][ T401] ? __kasan_check_read+0x11/0x20 [ 51.390395][ T401] ? __page_pinner_migration_failed+0xdd/0x250 [ 51.396519][ T401] vfat_add_entry+0x206/0x3850 [ 51.401254][ T401] ? __mod_memcg_state+0xb4/0x230 [ 51.406250][ T401] ? __kasan_check_write+0x14/0x20 [ 51.411338][ T401] ? percpu_counter_add_batch+0x14b/0x170 [ 51.417032][ T401] ? __rcu_read_lock+0x50/0x50 [ 51.421767][ T401] ? __add_wb_stat+0x5f/0x90 [ 51.426336][ T401] ? vfat_rename+0xff0/0xff0 [ 51.430897][ T401] ? __kasan_check_write+0x14/0x20 [ 51.435982][ T401] ? __brelse+0x5a/0xa0 [ 51.440109][ T401] ? fat_zeroed_cluster+0x82a/0x8a0 [ 51.445279][ T401] ? mark_buffer_dirty+0x1e3/0x310 [ 51.450359][ T401] ? _raw_spin_unlock+0x4d/0x70 [ 51.455183][ T401] ? fat_alloc_new_dir+0x857/0xd70 [ 51.460316][ T401] ? __fat_remove_entries+0x4f0/0x4f0 [ 51.465660][ T401] ? __kasan_check_write+0x14/0x20 [ 51.470742][ T401] ? find_inode_fast+0xab/0x4b0 [ 51.475570][ T401] ? may_create+0x635/0x8b0 [ 51.480085][ T401] vfat_mkdir+0x1a8/0x420 [ 51.484523][ T401] ? vfat_unlink+0x3a0/0x3a0 [ 51.489087][ T401] ? selinux_inode_mkdir+0x22/0x30 [ 51.494169][ T401] ? security_inode_mkdir+0xf1/0x130 [ 51.499460][ T401] vfs_mkdir+0x435/0x610 [ 51.503678][ T401] open_or_create_special_dir+0xbf/0x150 [ 51.509282][ T401] incfs_mount_fs+0x3e9/0x840 [ 51.513935][ T401] ? incfs_unlink+0x80/0x80 [ 51.518413][ T401] ? selinux_capable+0x39/0x50 [ 51.523147][ T401] legacy_get_tree+0xf0/0x190 [ 51.527803][ T401] ? incfs_unlink+0x80/0x80 [ 51.532278][ T401] vfs_get_tree+0x89/0x270 [ 51.536665][ T401] path_mount+0x1975/0x2ab0 [ 51.541142][ T401] ? mark_mounts_for_expiry+0x4b0/0x4b0 [ 51.546658][ T401] ? getname_flags+0x207/0x650 [ 51.551400][ T401] ? user_path_at_empty+0x40/0x50 [ 51.556397][ T401] __se_sys_mount+0x2f7/0x3b0 [ 51.561058][ T401] ? __x64_sys_mount+0xd0/0xd0 [ 51.565795][ T401] ? debug_smp_processor_id+0x1c/0x20 [ 51.571136][ T401] __x64_sys_mount+0xbf/0xd0 [ 51.575699][ T401] do_syscall_64+0x31/0x70 [ 51.580091][ T401] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 51.585957][ T401] RIP: 0033:0x7fb6577aafd9 [ 51.590349][ T401] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 51.609942][ T401] RSP: 002b:00007fff3432ea98 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 51.618332][ T401] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fb6577aafd9 [ 51.626283][ T401] RDX: 0000000020000340 RSI: 0000000020000000 RDI: 00000000200002c0 [ 51.634245][ T401] RBP: 00007fff3432eac0 R08: 0000000000000000 R09: 00007fff3432ead0 [ 51.642208][ T401] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000003 [ 51.650156][ T401] R13: 00007fff3432eb00 R14: 00007fff3432eae0 R15: 0000000000000011 [ 51.660012][ T401] incfs: Can't find or create .index dir in ./file0 [ 51.667903][ T365] BUG: Dentry ffff88811a230880{i=0,n=.index} still in use (1) [unmount of vfat loop0] [ 51.677562][ T365] ------------[ cut here ]------------ [ 51.683022][ T365] WARNING: CPU: 1 PID: 365 at fs/dcache.c:1616 umount_check+0x18d/0x1d0 [ 51.691353][ T365] Modules linked in: [ 51.695240][ T365] CPU: 1 PID: 365 Comm: syz-executor977 Tainted: G W 5.10.75-syzkaller-01082-g234d53d2bb60 #0 [ 51.706769][ T365] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 51.716823][ T365] RIP: 0010:umount_check+0x18d/0x1d0 [ 51.722105][ T365] Code: 8b 0b 49 81 c6 f8 03 00 00 48 c7 c7 40 43 2e 85 4c 89 e6 48 8b 55 d0 4c 89 e1 45 89 f8 31 c0 41 56 e8 ae d9 9e ff 48 83 c4 08 <0f> 0b e9 f1 fe ff ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c c9 fe ff [ 51.741713][ T365] RSP: 0018:ffffc90000bf7c78 EFLAGS: 00010286 [ 51.747755][ T365] RAX: 0000000000000054 RBX: ffffffff866b3380 RCX: 9f8f4fd1ceadc900 [ 51.755736][ T365] RDX: 0000000000000000 RSI: 0000000080000002 RDI: 0000000000000000 [ 51.763716][ T365] RBP: ffffc90000bf7ca8 R08: ffffffff81545368 R09: ffffed103ee295d8 [ 51.771691][ T365] R10: ffffed103ee295d8 R11: 0000000000000000 R12: ffff88811a230880 [ 51.779669][ T365] R13: dffffc0000000000 R14: ffff88810a6e73f8 R15: 0000000000000001 [ 51.787757][ T365] FS: 000055555592b300(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 51.796779][ T365] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 51.803808][ T365] CR2: 0000555555934628 CR3: 00000001079f8000 CR4: 00000000003506a0 [ 51.811787][ T365] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 51.819734][ T365] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 51.827714][ T365] Call Trace: [ 51.830987][ T365] d_walk+0x309/0x540 [ 51.834969][ T365] ? __d_free+0x30/0x30 [ 51.839130][ T365] shrink_dcache_for_umount+0x8e/0x1b0 [ 51.844594][ T365] generic_shutdown_super+0x66/0x2c0 [ 51.849858][ T365] kill_block_super+0x80/0xe0 [ 51.854667][ T365] deactivate_locked_super+0xb0/0x100 [ 51.860028][ T365] deactivate_super+0xa5/0xd0 [ 51.864708][ T365] cleanup_mnt+0x45f/0x510 [ 51.869104][ T365] __cleanup_mnt+0x19/0x20 [ 51.873523][ T365] task_work_run+0x147/0x1b0 [ 51.878122][ T365] exit_to_user_mode_prepare+0xc3/0xe0 [ 51.883585][ T365] syscall_exit_to_user_mode+0x24/0x40 [ 51.889034][ T365] do_syscall_64+0x3d/0x70 [ 51.893450][ T365] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 51.899322][ T365] RIP: 0033:0x7fb6577ac377 [ 51.903738][ T365] Code: 07 00 48 83 c4 08 5b 5d c3 66 2e 0f 1f 84 00 00 00 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 a6 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 51.923358][ T365] RSP: 002b:00007fff3432d9a8 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6 [ 51.931780][ T365] RAX: 0000000000000000 RBX: 000000000000c858 RCX: 00007fb6577ac377 [ 51.939736][ T365] RDX: 00007fff3432da6a RSI: 0000000000000002 RDI: 00007fff3432da60 [ 51.947712][ T365] RBP: 00007fff3432da60 R08: 00000000ffffffff R09: 00007fff3432d840 [ 51.955692][ T365] R10: 000055555592c633 R11: 0000000000000202 R12: 00007fff3432eae0 [ 51.963671][ T365] R13: 000055555592c5f0 R14: 00007fff3432d9d0 R15: 0000000000000012 [ 51.971674][ T365] ---[ end trace a965d9ac4e98a33c ]--- [ 51.977401][ T365] VFS: Busy inodes after unmount of loop0. Self-destruct in 5 seconds. Have a nice day... executing program [ 52.034124][ T403] FAULT_INJECTION: forcing a failure. [ 52.034124][ T403] name failslab, interval 1, probability 0, space 0, times 0 [ 52.046791][ T403] CPU: 1 PID: 403 Comm: syz-executor977 Tainted: G W 5.10.75-syzkaller-01082-g234d53d2bb60 #0 [ 52.058303][ T403] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 52.068330][ T403] Call Trace: [ 52.071596][ T403] dump_stack_lvl+0x1e2/0x24b [ 52.076250][ T403] ? show_regs_print_info+0x18/0x18 [ 52.081455][ T403] dump_stack+0x15/0x1d [ 52.085584][ T403] should_fail+0x3c0/0x510 [ 52.089973][ T403] ? vfat_add_entry+0x357/0x3850 [ 52.094883][ T403] __should_failslab+0x9f/0xe0 [ 52.099620][ T403] should_failslab+0x9/0x20 [ 52.104099][ T403] kmem_cache_alloc+0x43/0x380 [ 52.108836][ T403] vfat_add_entry+0x357/0x3850 [ 52.113599][ T403] ? __mod_memcg_state+0xb4/0x230 [ 52.118608][ T403] ? __kasan_check_write+0x14/0x20 [ 52.123709][ T403] ? percpu_counter_add_batch+0x14b/0x170 [ 52.129408][ T403] ? vfat_rename+0xff0/0xff0 [ 52.133980][ T403] ? __kasan_check_write+0x14/0x20 [ 52.139071][ T403] ? __brelse+0x5a/0xa0 [ 52.143307][ T403] ? fat_zeroed_cluster+0x82a/0x8a0 [ 52.148492][ T403] ? mark_buffer_dirty+0x1e3/0x310 [ 52.153589][ T403] ? _raw_spin_unlock+0x4d/0x70 [ 52.158414][ T403] ? fat_alloc_new_dir+0x857/0xd70 [ 52.163498][ T403] ? __fat_remove_entries+0x4f0/0x4f0 [ 52.168839][ T403] ? 0xffffffff81000000 [ 52.172971][ T403] ? __d_lookup_rcu+0xc0/0x660 [ 52.177712][ T403] ? may_create+0x635/0x8b0 [ 52.182278][ T403] vfat_mkdir+0x1a8/0x420 [ 52.186580][ T403] ? vfat_unlink+0x3a0/0x3a0 [ 52.191144][ T403] ? selinux_inode_mkdir+0x22/0x30 [ 52.196249][ T403] ? security_inode_mkdir+0xf1/0x130 [ 52.201507][ T403] vfs_mkdir+0x435/0x610 [ 52.205745][ T403] open_or_create_special_dir+0xbf/0x150 [ 52.211364][ T403] incfs_mount_fs+0x3e9/0x840 [ 52.216019][ T403] ? incfs_unlink+0x80/0x80 [ 52.220495][ T403] ? selinux_capable+0x39/0x50 [ 52.225228][ T403] legacy_get_tree+0xf0/0x190 [ 52.229872][ T403] ? incfs_unlink+0x80/0x80 [ 52.234346][ T403] vfs_get_tree+0x89/0x270 [ 52.238737][ T403] path_mount+0x1975/0x2ab0 [ 52.243210][ T403] ? mark_mounts_for_expiry+0x4b0/0x4b0 [ 52.248737][ T403] ? getname_flags+0x207/0x650 [ 52.253477][ T403] ? user_path_at_empty+0x40/0x50 [ 52.258486][ T403] __se_sys_mount+0x2f7/0x3b0 [ 52.263136][ T403] ? __x64_sys_mount+0xd0/0xd0 [ 52.267986][ T403] ? debug_smp_processor_id+0x1c/0x20 [ 52.273343][ T403] __x64_sys_mount+0xbf/0xd0 [ 52.277902][ T403] do_syscall_64+0x31/0x70 [ 52.282291][ T403] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 52.288153][ T403] RIP: 0033:0x7fb6577aafd9 [ 52.292543][ T403] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 52.312115][ T403] RSP: 002b:00007fff3432ea98 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 52.320512][ T403] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fb6577aafd9 [ 52.328455][ T403] RDX: 0000000020000340 RSI: 0000000020000000 RDI: 00000000200002c0 [ 52.336402][ T403] RBP: 00007fff3432eac0 R08: 0000000000000000 R09: 00007fff3432ead0 [ 52.344348][ T403] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000003 [ 52.352303][ T403] R13: 00007fff3432eb00 R14: 00007fff3432eae0 R15: 0000000000000012 [ 52.360446][ T403] incfs: Can't find or create .index dir in ./file0 [ 52.368297][ T365] BUG: Dentry ffff88811a1feaa0{i=0,n=.index} still in use (1) [unmount of vfat loop0] [ 52.378216][ T365] ------------[ cut here ]------------ [ 52.383684][ T365] WARNING: CPU: 1 PID: 365 at fs/dcache.c:1616 umount_check+0x18d/0x1d0 [ 52.392004][ T365] Modules linked in: [ 52.396003][ T365] CPU: 1 PID: 365 Comm: syz-executor977 Tainted: G W 5.10.75-syzkaller-01082-g234d53d2bb60 #0 [ 52.407543][ T365] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 52.417618][ T365] RIP: 0010:umount_check+0x18d/0x1d0 [ 52.422907][ T365] Code: 8b 0b 49 81 c6 f8 03 00 00 48 c7 c7 40 43 2e 85 4c 89 e6 48 8b 55 d0 4c 89 e1 45 89 f8 31 c0 41 56 e8 ae d9 9e ff 48 83 c4 08 <0f> 0b e9 f1 fe ff ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c c9 fe ff [ 52.442567][ T365] RSP: 0018:ffffc90000bf7c78 EFLAGS: 00010286 [ 52.448612][ T365] RAX: 0000000000000054 RBX: ffffffff866b3380 RCX: 9f8f4fd1ceadc900 [ 52.456629][ T365] RDX: 0000000000000000 RSI: 0000000080000002 RDI: 0000000000000000 [ 52.464605][ T365] RBP: ffffc90000bf7ca8 R08: ffffffff81545368 R09: ffffed103ee295d8 [ 52.472570][ T365] R10: ffffed103ee295d8 R11: 0000000000000000 R12: ffff88811a1feaa0 [ 52.480523][ T365] R13: dffffc0000000000 R14: ffff88810a6e33f8 R15: 0000000000000001 [ 52.488507][ T365] FS: 000055555592b300(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 52.497439][ T365] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 52.504024][ T365] CR2: 0000555555934628 CR3: 00000001079f8000 CR4: 00000000003506a0 [ 52.512015][ T365] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 52.519962][ T365] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 52.527927][ T365] Call Trace: [ 52.531203][ T365] d_walk+0x309/0x540 [ 52.535180][ T365] ? __d_free+0x30/0x30 [ 52.539315][ T365] shrink_dcache_for_umount+0x8e/0x1b0 [ 52.544784][ T365] generic_shutdown_super+0x66/0x2c0 [ 52.550051][ T365] kill_block_super+0x80/0xe0 [ 52.554725][ T365] deactivate_locked_super+0xb0/0x100 [ 52.560082][ T365] deactivate_super+0xa5/0xd0 [ 52.564761][ T365] cleanup_mnt+0x45f/0x510 [ 52.569795][ T365] __cleanup_mnt+0x19/0x20 [ 52.574213][ T365] task_work_run+0x147/0x1b0 [ 52.578793][ T365] exit_to_user_mode_prepare+0xc3/0xe0 [ 52.584253][ T365] syscall_exit_to_user_mode+0x24/0x40 [ 52.589702][ T365] do_syscall_64+0x3d/0x70 [ 52.594121][ T365] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 52.600026][ T365] RIP: 0033:0x7fb6577ac377 [ 52.604460][ T365] Code: 07 00 48 83 c4 08 5b 5d c3 66 2e 0f 1f 84 00 00 00 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 a6 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 52.624061][ T365] RSP: 002b:00007fff3432d9a8 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6 [ 52.632479][ T365] RAX: 0000000000000000 RBX: 000000000000cb2c RCX: 00007fb6577ac377 [ 52.640454][ T365] RDX: 00007fff3432da6a RSI: 0000000000000002 RDI: 00007fff3432da60 [ 52.648429][ T365] RBP: 00007fff3432da60 R08: 00000000ffffffff R09: 00007fff3432d840 [ 52.656396][ T365] R10: 000055555592c633 R11: 0000000000000202 R12: 00007fff3432eae0 [ 52.664376][ T365] R13: 000055555592c5f0 R14: 00007fff3432d9d0 R15: 0000000000000013 [ 52.672343][ T365] ---[ end trace a965d9ac4e98a33d ]--- [ 52.678115][ T365] VFS: Busy inodes after unmount of loop0. Self-destruct in 5 seconds. Have a nice day... executing program [ 52.747796][ T405] FAULT_INJECTION: forcing a failure. [ 52.747796][ T405] name failslab, interval 1, probability 0, space 0, times 0 [ 52.761231][ T405] CPU: 0 PID: 405 Comm: syz-executor977 Tainted: G W 5.10.75-syzkaller-01082-g234d53d2bb60 #0 [ 52.772762][ T405] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 52.782794][ T405] Call Trace: [ 52.786061][ T405] dump_stack_lvl+0x1e2/0x24b [ 52.790710][ T405] ? show_regs_print_info+0x18/0x18 [ 52.795947][ T405] dump_stack+0x15/0x1d [ 52.800079][ T405] should_fail+0x3c0/0x510 [ 52.804468][ T405] ? vfat_add_entry+0x357/0x3850 [ 52.809376][ T405] __should_failslab+0x9f/0xe0 [ 52.814112][ T405] should_failslab+0x9/0x20 [ 52.818592][ T405] kmem_cache_alloc+0x43/0x380 [ 52.823328][ T405] vfat_add_entry+0x357/0x3850 [ 52.828066][ T405] ? __mod_memcg_state+0xb4/0x230 [ 52.833064][ T405] ? __kasan_check_write+0x14/0x20 [ 52.838150][ T405] ? percpu_counter_add_batch+0x14b/0x170 [ 52.843841][ T405] ? vfat_rename+0xff0/0xff0 [ 52.848402][ T405] ? __kasan_check_write+0x14/0x20 [ 52.853483][ T405] ? __brelse+0x5a/0xa0 [ 52.857608][ T405] ? fat_zeroed_cluster+0x82a/0x8a0 [ 52.862776][ T405] ? mark_buffer_dirty+0x1e3/0x310 [ 52.867894][ T405] ? _raw_spin_unlock+0x4d/0x70 [ 52.872715][ T405] ? fat_alloc_new_dir+0x857/0xd70 [ 52.877799][ T405] ? __fat_remove_entries+0x4f0/0x4f0 [ 52.883228][ T405] ? 0xffffffff81000000 [ 52.887356][ T405] ? __d_lookup_rcu+0xc0/0x660 [ 52.892096][ T405] ? may_create+0x635/0x8b0 [ 52.896569][ T405] vfat_mkdir+0x1a8/0x420 [ 52.900904][ T405] ? vfat_unlink+0x3a0/0x3a0 [ 52.905555][ T405] ? selinux_inode_mkdir+0x22/0x30 [ 52.910645][ T405] ? security_inode_mkdir+0xf1/0x130 [ 52.915902][ T405] vfs_mkdir+0x435/0x610 [ 52.920120][ T405] open_or_create_special_dir+0xbf/0x150 [ 52.925722][ T405] incfs_mount_fs+0x3e9/0x840 [ 52.930370][ T405] ? incfs_unlink+0x80/0x80 [ 52.934847][ T405] ? selinux_capable+0x39/0x50 [ 52.939579][ T405] legacy_get_tree+0xf0/0x190 [ 52.944224][ T405] ? incfs_unlink+0x80/0x80 [ 52.948698][ T405] vfs_get_tree+0x89/0x270 [ 52.953090][ T405] path_mount+0x1975/0x2ab0 [ 52.957564][ T405] ? mark_mounts_for_expiry+0x4b0/0x4b0 [ 52.963082][ T405] ? getname_flags+0x207/0x650 [ 52.967816][ T405] ? user_path_at_empty+0x40/0x50 [ 52.972811][ T405] __se_sys_mount+0x2f7/0x3b0 [ 52.977460][ T405] ? __x64_sys_mount+0xd0/0xd0 [ 52.982198][ T405] ? debug_smp_processor_id+0x1c/0x20 [ 52.987543][ T405] __x64_sys_mount+0xbf/0xd0 [ 52.992142][ T405] do_syscall_64+0x31/0x70 [ 52.996531][ T405] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 53.002393][ T405] RIP: 0033:0x7fb6577aafd9 [ 53.006779][ T405] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 53.026352][ T405] RSP: 002b:00007fff3432ea98 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 53.034733][ T405] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fb6577aafd9 [ 53.042676][ T405] RDX: 0000000020000340 RSI: 0000000020000000 RDI: 00000000200002c0 [ 53.050632][ T405] RBP: 00007fff3432eac0 R08: 0000000000000000 R09: 00007fff3432ead0 [ 53.058576][ T405] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000003 [ 53.066521][ T405] R13: 00007fff3432eb00 R14: 00007fff3432eae0 R15: 0000000000000013 [ 53.074695][ T405] incfs: Can't find or create .index dir in ./file0 [ 53.082869][ T365] BUG: Dentry ffff888108ed5330{i=0,n=.index} still in use (1) [unmount of vfat loop0] [ 53.092633][ T365] ------------[ cut here ]------------ [ 53.098077][ T365] WARNING: CPU: 1 PID: 365 at fs/dcache.c:1616 umount_check+0x18d/0x1d0 [ 53.106406][ T365] Modules linked in: [ 53.110297][ T365] CPU: 1 PID: 365 Comm: syz-executor977 Tainted: G W 5.10.75-syzkaller-01082-g234d53d2bb60 #0 [ 53.121881][ T365] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 53.131973][ T365] RIP: 0010:umount_check+0x18d/0x1d0 [ 53.137231][ T365] Code: 8b 0b 49 81 c6 f8 03 00 00 48 c7 c7 40 43 2e 85 4c 89 e6 48 8b 55 d0 4c 89 e1 45 89 f8 31 c0 41 56 e8 ae d9 9e ff 48 83 c4 08 <0f> 0b e9 f1 fe ff ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c c9 fe ff [ 53.156984][ T365] RSP: 0018:ffffc90000bf7c78 EFLAGS: 00010286 [ 53.163105][ T365] RAX: 0000000000000054 RBX: ffffffff866b3380 RCX: 9f8f4fd1ceadc900 [ 53.171141][ T365] RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000000 [ 53.179119][ T365] RBP: ffffc90000bf7ca8 R08: ffffffff81545368 R09: ffffed103ee295d8 [ 53.187084][ T365] R10: ffffed103ee295d8 R11: 0000000000000000 R12: ffff888108ed5330 [ 53.195140][ T365] R13: dffffc0000000000 R14: ffff88810a6e63f8 R15: 0000000000000001 [ 53.203134][ T365] FS: 000055555592b300(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 53.212147][ T365] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 53.218716][ T365] CR2: 0000555555934628 CR3: 00000001079f8000 CR4: 00000000003506a0 [ 53.226692][ T365] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 53.234662][ T365] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 53.242623][ T365] Call Trace: [ 53.245894][ T365] d_walk+0x309/0x540 [ 53.249844][ T365] ? __d_free+0x30/0x30 [ 53.253998][ T365] shrink_dcache_for_umount+0x8e/0x1b0 [ 53.259454][ T365] generic_shutdown_super+0x66/0x2c0 [ 53.264747][ T365] kill_block_super+0x80/0xe0 [ 53.269410][ T365] deactivate_locked_super+0xb0/0x100 [ 53.274789][ T365] deactivate_super+0xa5/0xd0 [ 53.279457][ T365] cleanup_mnt+0x45f/0x510 [ 53.283882][ T365] __cleanup_mnt+0x19/0x20 [ 53.288295][ T365] task_work_run+0x147/0x1b0 [ 53.292896][ T365] exit_to_user_mode_prepare+0xc3/0xe0 [ 53.298372][ T365] syscall_exit_to_user_mode+0x24/0x40 [ 53.303837][ T365] do_syscall_64+0x3d/0x70 [ 53.308253][ T365] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 53.314149][ T365] RIP: 0033:0x7fb6577ac377 [ 53.318547][ T365] Code: 07 00 48 83 c4 08 5b 5d c3 66 2e 0f 1f 84 00 00 00 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 a6 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 53.338156][ T365] RSP: 002b:00007fff3432d9a8 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6 [ 53.346581][ T365] RAX: 0000000000000000 RBX: 000000000000cdf4 RCX: 00007fb6577ac377 [ 53.354552][ T365] RDX: 00007fff3432da6a RSI: 0000000000000002 RDI: 00007fff3432da60 [ 53.362539][ T365] RBP: 00007fff3432da60 R08: 00000000ffffffff R09: 00007fff3432d840 [ 53.370481][ T365] R10: 000055555592c633 R11: 0000000000000202 R12: 00007fff3432eae0 [ 53.378456][ T365] R13: 000055555592c5f0 R14: 00007fff3432d9d0 R15: 0000000000000014 [ 53.386424][ T365] ---[ end trace a965d9ac4e98a33e ]--- [ 53.392256][ T365] VFS: Busy inodes after unmount of loop0. Self-destruct in 5 seconds. Have a nice day... executing program [ 53.465382][ T407] FAULT_INJECTION: forcing a failure. [ 53.465382][ T407] name failslab, interval 1, probability 0, space 0, times 0 [ 53.478311][ T407] CPU: 0 PID: 407 Comm: syz-executor977 Tainted: G W 5.10.75-syzkaller-01082-g234d53d2bb60 #0 [ 53.489907][ T407] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 53.499936][ T407] Call Trace: [ 53.503203][ T407] dump_stack_lvl+0x1e2/0x24b [ 53.507853][ T407] ? show_regs_print_info+0x18/0x18 [ 53.513069][ T407] dump_stack+0x15/0x1d [ 53.517197][ T407] should_fail+0x3c0/0x510 [ 53.521584][ T407] ? vfat_add_entry+0x206/0x3850 [ 53.526540][ T407] __should_failslab+0x9f/0xe0 [ 53.531278][ T407] should_failslab+0x9/0x20 [ 53.535756][ T407] kmem_cache_alloc_trace+0x42/0x3a0 [ 53.541010][ T407] ? __kasan_check_read+0x11/0x20 [ 53.546003][ T407] ? __page_pinner_migration_failed+0xdd/0x250 [ 53.552130][ T407] vfat_add_entry+0x206/0x3850 [ 53.556911][ T407] ? __mod_memcg_state+0xb4/0x230 [ 53.561990][ T407] ? __kasan_check_write+0x14/0x20 [ 53.567081][ T407] ? percpu_counter_add_batch+0x14b/0x170 [ 53.572858][ T407] ? __rcu_read_lock+0x50/0x50 [ 53.577593][ T407] ? __add_wb_stat+0x5f/0x90 [ 53.582152][ T407] ? vfat_rename+0xff0/0xff0 [ 53.586714][ T407] ? __kasan_check_write+0x14/0x20 [ 53.591804][ T407] ? __brelse+0x5a/0xa0 [ 53.595935][ T407] ? fat_zeroed_cluster+0x82a/0x8a0 [ 53.601116][ T407] ? mark_buffer_dirty+0x1e3/0x310 [ 53.606198][ T407] ? _raw_spin_unlock+0x4d/0x70 [ 53.611023][ T407] ? fat_alloc_new_dir+0x857/0xd70 [ 53.616113][ T407] ? __fat_remove_entries+0x4f0/0x4f0 [ 53.621462][ T407] ? __kasan_check_write+0x14/0x20 [ 53.626559][ T407] ? find_inode_fast+0xac/0x4b0 [ 53.631383][ T407] ? may_create+0x635/0x8b0 [ 53.635950][ T407] vfat_mkdir+0x1a8/0x420 [ 53.640376][ T407] ? vfat_unlink+0x3a0/0x3a0 [ 53.644940][ T407] ? selinux_inode_mkdir+0x22/0x30 [ 53.650027][ T407] ? security_inode_mkdir+0xf1/0x130 [ 53.655286][ T407] vfs_mkdir+0x435/0x610 [ 53.659506][ T407] open_or_create_special_dir+0xbf/0x150 [ 53.665125][ T407] incfs_mount_fs+0x3e9/0x840 [ 53.669788][ T407] ? incfs_unlink+0x80/0x80 [ 53.674280][ T407] ? selinux_capable+0x39/0x50 [ 53.679019][ T407] legacy_get_tree+0xf0/0x190 [ 53.683677][ T407] ? incfs_unlink+0x80/0x80 [ 53.688154][ T407] vfs_get_tree+0x89/0x270 [ 53.692551][ T407] path_mount+0x1975/0x2ab0 [ 53.697079][ T407] ? mark_mounts_for_expiry+0x4b0/0x4b0 [ 53.702610][ T407] ? getname_flags+0x207/0x650 [ 53.707349][ T407] ? user_path_at_empty+0x40/0x50 [ 53.712347][ T407] __se_sys_mount+0x2f7/0x3b0 [ 53.716999][ T407] ? __x64_sys_mount+0xd0/0xd0 [ 53.721740][ T407] ? debug_smp_processor_id+0x1c/0x20 [ 53.727092][ T407] __x64_sys_mount+0xbf/0xd0 [ 53.731659][ T407] do_syscall_64+0x31/0x70 [ 53.736071][ T407] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 53.741950][ T407] RIP: 0033:0x7fb6577aafd9 [ 53.746357][ T407] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 53.765944][ T407] RSP: 002b:00007fff3432ea98 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 53.774337][ T407] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fb6577aafd9 [ 53.782289][ T407] RDX: 0000000020000340 RSI: 0000000020000000 RDI: 00000000200002c0 [ 53.790246][ T407] RBP: 00007fff3432eac0 R08: 0000000000000000 R09: 00007fff3432ead0 [ 53.798194][ T407] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000003 [ 53.806143][ T407] R13: 00007fff3432eb00 R14: 00007fff3432eae0 R15: 0000000000000014 [ 53.814207][ T407] incfs: Can't find or create .index dir in ./file0 [ 53.822143][ T365] BUG: Dentry ffff88811a237220{i=0,n=.index} still in use (1) [unmount of vfat loop0] [ 53.831927][ T365] ------------[ cut here ]------------ [ 53.837366][ T365] WARNING: CPU: 0 PID: 365 at fs/dcache.c:1616 umount_check+0x18d/0x1d0 [ 53.845686][ T365] Modules linked in: [ 53.849568][ T365] CPU: 0 PID: 365 Comm: syz-executor977 Tainted: G W 5.10.75-syzkaller-01082-g234d53d2bb60 #0 [ 53.861213][ T365] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 53.871359][ T365] RIP: 0010:umount_check+0x18d/0x1d0 [ 53.876626][ T365] Code: 8b 0b 49 81 c6 f8 03 00 00 48 c7 c7 40 43 2e 85 4c 89 e6 48 8b 55 d0 4c 89 e1 45 89 f8 31 c0 41 56 e8 ae d9 9e ff 48 83 c4 08 <0f> 0b e9 f1 fe ff ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c c9 fe ff [ 53.896330][ T365] RSP: 0018:ffffc90000bf7c78 EFLAGS: 00010286 [ 53.902417][ T365] RAX: 0000000000000054 RBX: ffffffff866b3380 RCX: 9f8f4fd1ceadc900 [ 53.910372][ T365] RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000000 [ 53.918343][ T365] RBP: ffffc90000bf7ca8 R08: ffffffff81545368 R09: ffffed103ee095d8 [ 53.926319][ T365] R10: ffffed103ee095d8 R11: 0000000000000000 R12: ffff88811a237220 [ 53.934298][ T365] R13: dffffc0000000000 R14: ffff88810a6e43f8 R15: 0000000000000001 [ 53.942275][ T365] FS: 000055555592b300(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 53.951189][ T365] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 53.957772][ T365] CR2: 0000555555934628 CR3: 00000001079f8000 CR4: 00000000003506b0 [ 53.965779][ T365] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 53.973766][ T365] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 53.981784][ T365] Call Trace: [ 53.985053][ T365] d_walk+0x309/0x540 [ 53.989005][ T365] ? __d_free+0x30/0x30 [ 53.993164][ T365] shrink_dcache_for_umount+0x8e/0x1b0 [ 53.998604][ T365] generic_shutdown_super+0x66/0x2c0 [ 54.003903][ T365] kill_block_super+0x80/0xe0 [ 54.008582][ T365] deactivate_locked_super+0xb0/0x100 [ 54.013953][ T365] deactivate_super+0xa5/0xd0 [ 54.018612][ T365] cleanup_mnt+0x45f/0x510 [ 54.023031][ T365] __cleanup_mnt+0x19/0x20 [ 54.027437][ T365] task_work_run+0x147/0x1b0 [ 54.032226][ T365] exit_to_user_mode_prepare+0xc3/0xe0 [ 54.037674][ T365] syscall_exit_to_user_mode+0x24/0x40 [ 54.043303][ T365] do_syscall_64+0x3d/0x70 [ 54.047711][ T365] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 54.053598][ T365] RIP: 0033:0x7fb6577ac377 [ 54.058022][ T365] Code: 07 00 48 83 c4 08 5b 5d c3 66 2e 0f 1f 84 00 00 00 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 a6 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 54.077627][ T365] RSP: 002b:00007fff3432d9a8 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6 [ 54.086053][ T365] RAX: 0000000000000000 RBX: 000000000000d0c3 RCX: 00007fb6577ac377 [ 54.094027][ T365] RDX: 00007fff3432da6a RSI: 0000000000000002 RDI: 00007fff3432da60 [ 54.102005][ T365] RBP: 00007fff3432da60 R08: 00000000ffffffff R09: 00007fff3432d840 [ 54.109955][ T365] R10: 000055555592c633 R11: 0000000000000202 R12: 00007fff3432eae0 [ 54.117930][ T365] R13: 000055555592c5f0 R14: 00007fff3432d9d0 R15: 0000000000000015 [ 54.125904][ T365] ---[ end trace a965d9ac4e98a33f ]--- [ 54.131753][ T365] VFS: Busy inodes after unmount of loop0. Self-destruct in 5 seconds. Have a nice day... executing program [ 54.225109][ T409] FAULT_INJECTION: forcing a failure. [ 54.225109][ T409] name failslab, interval 1, probability 0, space 0, times 0 [ 54.237706][ T409] CPU: 0 PID: 409 Comm: syz-executor977 Tainted: G W 5.10.75-syzkaller-01082-g234d53d2bb60 #0 [ 54.249213][ T409] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 54.259280][ T409] Call Trace: [ 54.262548][ T409] dump_stack_lvl+0x1e2/0x24b [ 54.267201][ T409] ? show_regs_print_info+0x18/0x18 [ 54.272375][ T409] ? stack_trace_save+0x1e0/0x1e0 [ 54.277388][ T409] ? arch_stack_walk+0x106/0x140 [ 54.282319][ T409] dump_stack+0x15/0x1d [ 54.286508][ T409] should_fail+0x3c0/0x510 [ 54.290902][ T409] ? xas_create+0x651/0x1870 [ 54.295470][ T409] __should_failslab+0x9f/0xe0 [ 54.300262][ T409] should_failslab+0x9/0x20 [ 54.304740][ T409] kmem_cache_alloc+0x43/0x380 [ 54.309474][ T409] xas_create+0x651/0x1870 [ 54.313865][ T409] xas_store+0x9e/0x1ad0 [ 54.318078][ T409] ? xas_find_conflict+0x71b/0x830 [ 54.323157][ T409] __add_to_page_cache_locked+0x5f5/0xb70 [ 54.328845][ T409] ? replace_page_cache_page+0xb00/0xb00 [ 54.334448][ T409] ? workingset_activation+0x250/0x250 [ 54.339877][ T409] ? __alloc_pages_nodemask+0x3c8/0x820 [ 54.345392][ T409] add_to_page_cache_lru+0x123/0x290 [ 54.350648][ T409] ? add_to_page_cache_locked+0x40/0x40 [ 54.356163][ T409] ? __find_get_block_slow+0x12b/0x4e0 [ 54.361713][ T409] pagecache_get_page+0x725/0x9c0 [ 54.366708][ T409] grow_dev_page+0xba/0x4c0 [ 54.371181][ T409] __getblk_gfp+0x18d/0x2a0 [ 54.375654][ T409] fat_alloc_new_dir+0x27a/0xd70 [ 54.380561][ T409] ? __fat_remove_entries+0x4f0/0x4f0 [ 54.385916][ T409] ? __kasan_check_write+0x14/0x20 [ 54.391006][ T409] ? __d_lookup_rcu+0xc0/0x660 [ 54.395740][ T409] ? may_create+0x635/0x8b0 [ 54.400211][ T409] vfat_mkdir+0x176/0x420 [ 54.404524][ T409] ? vfat_unlink+0x3a0/0x3a0 [ 54.409087][ T409] ? selinux_inode_mkdir+0x22/0x30 [ 54.414167][ T409] ? security_inode_mkdir+0xf1/0x130 [ 54.419423][ T409] vfs_mkdir+0x435/0x610 [ 54.423639][ T409] open_or_create_special_dir+0xbf/0x150 [ 54.429249][ T409] incfs_mount_fs+0x3e9/0x840 [ 54.433907][ T409] ? incfs_unlink+0x80/0x80 [ 54.438384][ T409] ? selinux_capable+0x39/0x50 [ 54.443116][ T409] legacy_get_tree+0xf0/0x190 [ 54.447761][ T409] ? incfs_unlink+0x80/0x80 [ 54.452323][ T409] vfs_get_tree+0x89/0x270 [ 54.456710][ T409] path_mount+0x1975/0x2ab0 [ 54.461187][ T409] ? mark_mounts_for_expiry+0x4b0/0x4b0 [ 54.466715][ T409] ? getname_flags+0x207/0x650 [ 54.471448][ T409] ? user_path_at_empty+0x40/0x50 [ 54.476441][ T409] __se_sys_mount+0x2f7/0x3b0 [ 54.481091][ T409] ? __x64_sys_mount+0xd0/0xd0 [ 54.485825][ T409] ? debug_smp_processor_id+0x1c/0x20 [ 54.491199][ T409] __x64_sys_mount+0xbf/0xd0 [ 54.495761][ T409] do_syscall_64+0x31/0x70 [ 54.500151][ T409] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 54.506011][ T409] RIP: 0033:0x7fb6577aafd9 [ 54.510397][ T409] 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 [ 54.529970][ T409] RSP: 002b:00007fff3432ea98 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 54.538351][ T409] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fb6577aafd9 [ 54.546294][ T409] RDX: 0000000020000340 RSI: 0000000020000000 RDI: 00000000200002c0 [ 54.554238][ T409] RBP: 00007fff3432eac0 R08: 0000000000000000 R09: 00007fff3432ead0 [ 54.562266][ T409] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000003 [ 54.570224][ T409] R13: 00007fff3432eb00 R14: 00007fff3432eae0 R15: 0000000000000015 [ 54.579858][ T409] incfs: ino conflict with backing FS 1 executing program [ 54.665619][ T411] FAULT_INJECTION: forcing a failure. [ 54.665619][ T411] name fail_page_alloc, interval 1, probability 0, space 0, times 0 [ 54.678897][ T411] CPU: 0 PID: 411 Comm: syz-executor977 Tainted: G W 5.10.75-syzkaller-01082-g234d53d2bb60 #0 [ 54.690414][ T411] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 54.700442][ T411] Call Trace: [ 54.703707][ T411] dump_stack_lvl+0x1e2/0x24b [ 54.708398][ T411] ? show_regs_print_info+0x18/0x18 [ 54.713570][ T411] ? mark_buffer_dirty+0x207/0x310 [ 54.718652][ T411] dump_stack+0x15/0x1d [ 54.722778][ T411] should_fail+0x3c0/0x510 [ 54.727220][ T411] should_fail_alloc_page+0x4f/0x60 [ 54.732395][ T411] __alloc_pages_nodemask+0x1b9/0x820 [ 54.737741][ T411] ? gfp_pfmemalloc_allowed+0x120/0x120 [ 54.743257][ T411] ? __rcu_read_lock+0x50/0x50 [ 54.747992][ T411] ? xas_load+0x28b/0x2a0 [ 54.752291][ T411] allocate_slab+0x6b/0x350 [ 54.756764][ T411] ___slab_alloc+0x143/0x2f0 [ 54.761327][ T411] ? alloc_buffer_head+0x26/0x110 [ 54.766321][ T411] kmem_cache_alloc+0x26f/0x380 [ 54.771141][ T411] ? alloc_buffer_head+0x26/0x110 [ 54.776136][ T411] alloc_buffer_head+0x26/0x110 [ 54.780963][ T411] alloc_page_buffers+0x138/0x4b0 [ 54.785957][ T411] grow_dev_page+0x276/0x4c0 [ 54.790534][ T411] __getblk_gfp+0x18d/0x2a0 [ 54.795010][ T411] fat_alloc_new_dir+0x27a/0xd70 [ 54.800006][ T411] ? __fat_remove_entries+0x4f0/0x4f0 [ 54.805352][ T411] ? __kasan_check_write+0x14/0x20 [ 54.810443][ T411] ? __d_lookup_rcu+0xc0/0x660 [ 54.815178][ T411] ? may_create+0x635/0x8b0 [ 54.819742][ T411] vfat_mkdir+0x176/0x420 [ 54.824044][ T411] ? vfat_unlink+0x3a0/0x3a0 [ 54.828608][ T411] ? selinux_inode_mkdir+0x22/0x30 [ 54.833690][ T411] ? security_inode_mkdir+0xf1/0x130 [ 54.838946][ T411] vfs_mkdir+0x435/0x610 [ 54.843161][ T411] open_or_create_special_dir+0xbf/0x150 [ 54.848761][ T411] incfs_mount_fs+0x3e9/0x840 [ 54.853498][ T411] ? incfs_unlink+0x80/0x80 [ 54.857972][ T411] ? selinux_capable+0x39/0x50 [ 54.862704][ T411] legacy_get_tree+0xf0/0x190 [ 54.867349][ T411] ? incfs_unlink+0x80/0x80 [ 54.871822][ T411] vfs_get_tree+0x89/0x270 [ 54.876209][ T411] path_mount+0x1975/0x2ab0 [ 54.880691][ T411] ? mark_mounts_for_expiry+0x4b0/0x4b0 [ 54.886207][ T411] ? getname_flags+0x207/0x650 [ 54.890941][ T411] ? user_path_at_empty+0x40/0x50 [ 54.896110][ T411] __se_sys_mount+0x2f7/0x3b0 [ 54.900757][ T411] ? __x64_sys_mount+0xd0/0xd0 [ 54.905494][ T411] ? debug_smp_processor_id+0x1c/0x20 [ 54.910835][ T411] __x64_sys_mount+0xbf/0xd0 [ 54.915392][ T411] do_syscall_64+0x31/0x70 [ 54.919779][ T411] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 54.925644][ T411] RIP: 0033:0x7fb6577aafd9 [ 54.930029][ T411] 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 [ 54.949617][ T411] RSP: 002b:00007fff3432ea98 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 54.958001][ T411] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fb6577aafd9 [ 54.965945][ T411] RDX: 0000000020000340 RSI: 0000000020000000 RDI: 00000000200002c0 [ 54.973893][ T411] RBP: 00007fff3432eac0 R08: 0000000000000000 R09: 00007fff3432ead0 [ 54.981834][ T411] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000003 [ 54.989775][ T411] R13: 00007fff3432eb00 R14: 00007fff3432eae0 R15: 0000000000000016 [ 54.998063][ T411] incfs: ino conflict with backing FS 1 executing program [ 55.065231][ T413] FAULT_INJECTION: forcing a failure. [ 55.065231][ T413] name failslab, interval 1, probability 0, space 0, times 0 [ 55.077818][ T413] CPU: 1 PID: 413 Comm: syz-executor977 Tainted: G W 5.10.75-syzkaller-01082-g234d53d2bb60 #0 [ 55.089325][ T413] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 55.099349][ T413] Call Trace: [ 55.102617][ T413] dump_stack_lvl+0x1e2/0x24b [ 55.107266][ T413] ? show_regs_print_info+0x18/0x18 [ 55.112453][ T413] ? stack_trace_save+0x1e0/0x1e0 [ 55.117454][ T413] ? arch_stack_walk+0x106/0x140 [ 55.122369][ T413] dump_stack+0x15/0x1d [ 55.126496][ T413] should_fail+0x3c0/0x510 [ 55.130884][ T413] ? xas_create+0x651/0x1870 [ 55.135455][ T413] __should_failslab+0x9f/0xe0 [ 55.140206][ T413] should_failslab+0x9/0x20 [ 55.144683][ T413] kmem_cache_alloc+0x43/0x380 [ 55.149417][ T413] xas_create+0x651/0x1870 [ 55.153860][ T413] xas_store+0x9e/0x1ad0 [ 55.158072][ T413] ? xas_find_conflict+0x71b/0x830 [ 55.163170][ T413] __add_to_page_cache_locked+0x5f5/0xb70 [ 55.168860][ T413] ? replace_page_cache_page+0xb00/0xb00 [ 55.174464][ T413] ? workingset_activation+0x250/0x250 [ 55.179893][ T413] ? __alloc_pages_nodemask+0x3c8/0x820 [ 55.185409][ T413] add_to_page_cache_lru+0x123/0x290 [ 55.190666][ T413] ? add_to_page_cache_locked+0x40/0x40 [ 55.196184][ T413] ? __find_get_block_slow+0x12b/0x4e0 [ 55.201611][ T413] pagecache_get_page+0x725/0x9c0 [ 55.206606][ T413] grow_dev_page+0xba/0x4c0 [ 55.211081][ T413] __getblk_gfp+0x18d/0x2a0 [ 55.215565][ T413] fat_alloc_new_dir+0x27a/0xd70 [ 55.220494][ T413] ? __fat_remove_entries+0x4f0/0x4f0 [ 55.225837][ T413] ? __kasan_check_write+0x14/0x20 [ 55.230921][ T413] ? __d_lookup_rcu+0xc0/0x660 [ 55.235660][ T413] ? may_create+0x635/0x8b0 [ 55.240146][ T413] vfat_mkdir+0x176/0x420 [ 55.244472][ T413] ? vfat_unlink+0x3a0/0x3a0 [ 55.249034][ T413] ? selinux_inode_mkdir+0x22/0x30 [ 55.254114][ T413] ? security_inode_mkdir+0xf1/0x130 [ 55.259368][ T413] vfs_mkdir+0x435/0x610 [ 55.263583][ T413] open_or_create_special_dir+0xbf/0x150 [ 55.269184][ T413] incfs_mount_fs+0x3e9/0x840 [ 55.273833][ T413] ? incfs_unlink+0x80/0x80 [ 55.278332][ T413] ? selinux_capable+0x39/0x50 [ 55.283072][ T413] legacy_get_tree+0xf0/0x190 [ 55.287717][ T413] ? incfs_unlink+0x80/0x80 [ 55.292191][ T413] vfs_get_tree+0x89/0x270 [ 55.296579][ T413] path_mount+0x1975/0x2ab0 [ 55.301055][ T413] ? mark_mounts_for_expiry+0x4b0/0x4b0 [ 55.306571][ T413] ? getname_flags+0x207/0x650 [ 55.311306][ T413] ? user_path_at_empty+0x40/0x50 [ 55.316300][ T413] __se_sys_mount+0x2f7/0x3b0 [ 55.320951][ T413] ? __x64_sys_mount+0xd0/0xd0 [ 55.325685][ T413] ? debug_smp_processor_id+0x1c/0x20 [ 55.331029][ T413] __x64_sys_mount+0xbf/0xd0 [ 55.335591][ T413] do_syscall_64+0x31/0x70 [ 55.339990][ T413] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 55.345867][ T413] RIP: 0033:0x7fb6577aafd9 [ 55.350253][ T413] 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 [ 55.369847][ T413] RSP: 002b:00007fff3432ea98 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 55.378245][ T413] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fb6577aafd9 [ 55.386197][ T413] RDX: 0000000020000340 RSI: 0000000020000000 RDI: 00000000200002c0 [ 55.394139][ T413] RBP: 00007fff3432eac0 R08: 0000000000000000 R09: 00007fff3432ead0 [ 55.402097][ T413] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000003 executing program [ 55.410089][ T413] R13: 00007fff3432eb00 R14: 00007fff3432eae0 R15: 0000000000000017 [ 55.419541][ T413] incfs: ino conflict with backing FS 1 [ 55.465023][ T415] FAULT_INJECTION: forcing a failure. [ 55.465023][ T415] name failslab, interval 1, probability 0, space 0, times 0 [ 55.477705][ T415] CPU: 0 PID: 415 Comm: syz-executor977 Tainted: G W 5.10.75-syzkaller-01082-g234d53d2bb60 #0 [ 55.489215][ T415] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 55.499283][ T415] Call Trace: [ 55.502591][ T415] dump_stack_lvl+0x1e2/0x24b [ 55.507239][ T415] ? show_regs_print_info+0x18/0x18 [ 55.512408][ T415] ? is_module_text_address+0xe1/0x140 [ 55.517844][ T415] ? stack_trace_save+0x1e0/0x1e0 [ 55.522929][ T415] dump_stack+0x15/0x1d [ 55.527057][ T415] should_fail+0x3c0/0x510 [ 55.531444][ T415] ? mempool_alloc_slab+0x1d/0x30 [ 55.536440][ T415] __should_failslab+0x9f/0xe0 [ 55.541174][ T415] should_failslab+0x9/0x20 [ 55.545749][ T415] kmem_cache_alloc+0x43/0x380 [ 55.550481][ T415] ? mempool_free+0x310/0x310 [ 55.555131][ T415] mempool_alloc_slab+0x1d/0x30 [ 55.559953][ T415] mempool_alloc+0x113/0x650 [ 55.564518][ T415] ? __kasan_check_read+0x11/0x20 [ 55.569524][ T415] ? __page_pinner_migration_failed+0xdd/0x250 [ 55.575649][ T415] ? mempool_resize+0x8e0/0x8e0 [ 55.580473][ T415] ? _raw_spin_trylock_bh+0x1a0/0x1a0 [ 55.585819][ T415] ? pagecache_get_page+0x907/0x9c0 [ 55.590987][ T415] bio_alloc_bioset+0x1db/0x650 [ 55.595808][ T415] ? __kasan_check_write+0x14/0x20 [ 55.600893][ T415] ? __find_get_block+0xa6b/0xbd0 [ 55.605903][ T415] ? bio_chain_endio+0x120/0x120 [ 55.610895][ T415] ? write_boundary_block+0x150/0x150 [ 55.616296][ T415] ? __rcu_read_lock+0x50/0x50 [ 55.621028][ T415] submit_bh_wbc+0x1cb/0x740 [ 55.625590][ T415] __bread_gfp+0x187/0x320 [ 55.629985][ T415] fat12_ent_bread+0x17f/0x510 [ 55.634724][ T415] ? fat12_ent_blocknr+0xb4/0x1e0 [ 55.639721][ T415] ? fat12_ent_set_ptr+0x270/0x270 [ 55.644802][ T415] fat_alloc_clusters+0x887/0x1660 [ 55.649887][ T415] ? __rcu_read_lock+0x50/0x50 [ 55.654637][ T415] ? fat_mirror_bhs+0x480/0x480 [ 55.659460][ T415] ? memcpy+0x56/0x70 [ 55.663421][ T415] fat_alloc_new_dir+0x19e/0xd70 [ 55.668327][ T415] ? __fat_remove_entries+0x4f0/0x4f0 [ 55.673683][ T415] ? __kasan_check_write+0x14/0x20 [ 55.678768][ T415] ? __d_lookup_rcu+0xc0/0x660 [ 55.683502][ T415] ? may_create+0x635/0x8b0 [ 55.687975][ T415] vfat_mkdir+0x176/0x420 [ 55.692274][ T415] ? vfat_unlink+0x3a0/0x3a0 [ 55.696837][ T415] ? selinux_inode_mkdir+0x22/0x30 [ 55.702008][ T415] ? security_inode_mkdir+0xf1/0x130 [ 55.707437][ T415] vfs_mkdir+0x435/0x610 [ 55.711651][ T415] open_or_create_special_dir+0xbf/0x150 [ 55.717252][ T415] incfs_mount_fs+0x3e9/0x840 [ 55.721898][ T415] ? incfs_unlink+0x80/0x80 [ 55.726371][ T415] ? selinux_capable+0x39/0x50 [ 55.731116][ T415] legacy_get_tree+0xf0/0x190 [ 55.735767][ T415] ? incfs_unlink+0x80/0x80 [ 55.740238][ T415] vfs_get_tree+0x89/0x270 [ 55.744642][ T415] path_mount+0x1975/0x2ab0 [ 55.749117][ T415] ? mark_mounts_for_expiry+0x4b0/0x4b0 [ 55.754634][ T415] ? getname_flags+0x207/0x650 [ 55.759378][ T415] ? user_path_at_empty+0x40/0x50