[ 16.140657][ T0] NOHZ tick-stop error: Non-RCU local softirq work is pending, handler #80!!! [ 17.980661][ T0] NOHZ tick-stop error: Non-RCU local softirq work is pending, handler #80!!! Warning: Permanently added '10.128.1.150' (ECDSA) to the list of known hosts. executing program [ 20.291206][ T23] audit: type=1400 audit(1635291695.709:73): avc: denied { execmem } for pid=365 comm="syz-executor429" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 20.311344][ T23] audit: type=1400 audit(1635291695.729:74): avc: denied { mounton } for pid=366 comm="syz-executor429" path="/sys/fs/fuse/connections" dev="fusectl" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fusefs_t tclass=dir permissive=1 [ 20.335441][ T23] audit: type=1400 audit(1635291695.739:75): avc: denied { mount } for pid=366 comm="syz-executor429" name="/" dev="fusectl" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fusefs_t tclass=filesystem permissive=1 [ 20.358214][ T23] audit: type=1400 audit(1635291695.739:76): avc: denied { mounton } for pid=366 comm="syz-executor429" path="/" dev="sda1" ino=2 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:root_t tclass=dir permissive=1 [ 20.363779][ T366] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue [ 20.379936][ T23] audit: type=1400 audit(1635291695.749:77): avc: denied { read write } for pid=366 comm="syz-executor429" 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 [ 20.401324][ T366] EXT4-fs error (device loop0): __ext4_new_inode:1072: comm syz-executor429: reserved inode found cleared - inode=1 [ 20.412881][ T23] audit: type=1400 audit(1635291695.749:78): avc: denied { open } for pid=366 comm="syz-executor429" 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 [ 20.425110][ T366] incfs: Can't find or create .index dir in ./file0 [ 20.455717][ T23] audit: type=1400 audit(1635291695.749:79): avc: denied { ioctl } for pid=366 comm="syz-executor429" path="/dev/loop0" dev="devtmpfs" ino=115 ioctlcmd=0x4c00 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1 [ 20.481558][ T23] audit: type=1400 audit(1635291695.749:80): avc: denied { mounton } for pid=366 comm="syz-executor429" path="/root/file0" dev="sda1" ino=1137 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:user_home_t tclass=dir permissive=1 [ 20.481777][ T366] BUG: Dentry ffff888119d80cc0{i=0,n=.index} still in use (1) [unmount of ext4 loop0] [ 20.504379][ T23] audit: type=1400 audit(1635291695.809:81): avc: denied { mount } for pid=366 comm="syz-executor429" name="/" dev="loop0" ino=2 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fs_t tclass=filesystem permissive=1 [ 20.513919][ T366] ------------[ cut here ]------------ [ 20.535777][ T23] audit: type=1400 audit(1635291695.809:82): avc: denied { mounton } for pid=366 comm="syz-executor429" path="/root/file0" dev="loop0" ino=2 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unlabeled_t tclass=dir permissive=1 [ 20.541126][ T366] WARNING: CPU: 1 PID: 366 at fs/dcache.c:1616 umount_check+0x18d/0x1d0 [ 20.541135][ T366] Modules linked in: [ 20.576118][ T366] CPU: 1 PID: 366 Comm: syz-executor429 Not tainted 5.10.75-syzkaller-01082-g234d53d2bb60 #0 [ 20.586250][ T366] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 20.596300][ T366] RIP: 0010:umount_check+0x18d/0x1d0 [ 20.601587][ T366] 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 [ 20.621187][ T366] RSP: 0018:ffffc9000026fab8 EFLAGS: 00010286 [ 20.627230][ T366] RAX: 0000000000000054 RBX: ffffffff86690d40 RCX: da8cbc4624ea9a00 [ 20.635195][ T366] RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000000 [ 20.643166][ T366] RBP: ffffc9000026fae8 R08: ffffffff81545368 R09: 0000000000000003 [ 20.651137][ T366] R10: fffff5200004dea9 R11: 0000000000000004 R12: ffff888119d80cc0 [ 20.659088][ T366] R13: dffffc0000000000 R14: ffff88811d5323f8 R15: 0000000000000001 [ 20.667060][ T366] FS: 0000000000000000(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 20.675981][ T366] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 20.682563][ T366] CR2: 00007fe4c1dcd1d0 CR3: 000000010c581000 CR4: 00000000003506a0 [ 20.690520][ T366] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 20.698494][ T366] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 20.706457][ T366] Call Trace: [ 20.709722][ T366] d_walk+0x309/0x540 [ 20.713696][ T366] ? __d_free+0x30/0x30 [ 20.717832][ T366] shrink_dcache_for_umount+0x8e/0x1b0 [ 20.723305][ T366] generic_shutdown_super+0x66/0x2c0 [ 20.728578][ T366] kill_block_super+0x80/0xe0 [ 20.733253][ T366] deactivate_locked_super+0xb0/0x100 [ 20.738601][ T366] deactivate_super+0xa5/0xd0 [ 20.743329][ T366] cleanup_mnt+0x45f/0x510 [ 20.747731][ T366] __cleanup_mnt+0x19/0x20 [ 20.752147][ T366] task_work_run+0x147/0x1b0 [ 20.756726][ T366] do_exit+0x70e/0x23a0 [ 20.760877][ T366] ? vmacache_update+0xb7/0x120 [ 20.765713][ T366] ? mm_update_next_owner+0x6e0/0x6e0 [ 20.771079][ T366] ? do_user_addr_fault+0x863/0xd70 [ 20.776255][ T366] do_group_exit+0x16a/0x2d0 [ 20.780847][ T366] __do_sys_exit_group+0x17/0x20 [ 20.785762][ T366] __se_sys_exit_group+0x14/0x20 [ 20.790728][ T366] __x64_sys_exit_group+0x3b/0x40 [ 20.795739][ T366] do_syscall_64+0x31/0x70 [ 20.800127][ T366] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 20.806038][ T366] RIP: 0033:0x7fe4c1d58019 [ 20.810429][ T366] Code: Unable to access opcode bytes at RIP 0x7fe4c1d57fef. [ 20.817805][ T366] RSP: 002b:00007fff14a22848 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 20.826217][ T366] RAX: ffffffffffffffda RBX: 00007fe4c1dcc330 RCX: 00007fe4c1d58019 [ 20.834196][ T366] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 [ 20.842159][ T3