[ 7.767892][ T22] audit: type=1400 audit(1635133496.019:67): avc: denied { read write } for pid=234 comm="getty" name="utmp" dev="tmpfs" ino=9480 scontext=system_u:system_r:getty_t tcontext=system_u:object_r:tmpfs_t tclass=file permissive=1 [ 7.771039][ T22] audit: type=1400 audit(1635133496.019:68): avc: denied { open } for pid=234 comm="getty" path="/run/utmp" dev="tmpfs" ino=9480 scontext=system_u:system_r:getty_t tcontext=system_u:object_r:tmpfs_t tclass=file permissive=1 [ 7.775722][ T22] audit: type=1400 audit(1635133496.019:69): avc: denied { lock } for pid=234 comm="getty" path="/run/utmp" dev="tmpfs" ino=9480 scontext=system_u:system_r:getty_t tcontext=system_u:object_r:tmpfs_t tclass=file permissive=1 [ 7.779406][ T22] audit: type=1400 audit(1635133496.019:70): avc: denied { read } for pid=234 comm="getty" name="log" dev="sda1" ino=1125 scontext=system_u:system_r:getty_t tcontext=system_u:object_r:var_t tclass=lnk_file permissive=1 syzkaller syzkaller login: [ 14.238967][ T22] audit: type=1400 audit(1635133502.499:71): avc: denied { transition } for pid=265 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 [ 14.244145][ T22] audit: type=1400 audit(1635133502.499:72): avc: denied { write } for pid=265 comm="sh" path="pipe:[9875]" dev="pipefs" ino=9875 scontext=root:sysadm_r:sysadm_t tcontext=system_u:system_r:initrc_t tclass=fifo_file permissive=1 Warning: Permanently added '10.128.0.28' (ECDSA) to the list of known hosts. executing program [ 23.973430][ T22] audit: type=1400 audit(1635133512.229:73): avc: denied { execmem } for pid=298 comm="syz-executor141" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 23.994649][ T22] audit: type=1400 audit(1635133512.229:74): avc: denied { mounton } for pid=300 comm="syz-executor141" 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 [ 24.018870][ T22] audit: type=1400 audit(1635133512.229:75): avc: denied { mount } for pid=300 comm="syz-executor141" name="/" dev="fusectl" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fusefs_t tclass=filesystem permissive=1 [ 24.041312][ T22] audit: type=1400 audit(1635133512.229:76): avc: denied { mounton } for pid=300 comm="syz-executor141" path="/" dev="sda1" ino=2 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:root_t tclass=dir permissive=1 [ 24.063037][ T22] audit: type=1400 audit(1635133512.249:77): avc: denied { read write } for pid=300 comm="syz-executor141" name="fuse" dev="devtmpfs" ino=9338 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fuse_device_t tclass=chr_file permissive=1 [ 24.087045][ T22] audit: type=1400 audit(1635133512.249:78): avc: denied { open } for pid=300 comm="syz-executor141" path="/dev/fuse" dev="devtmpfs" ino=9338 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fuse_device_t tclass=chr_file permissive=1 [ 24.110624][ T22] audit: type=1400 audit(1635133512.249:79): avc: denied { mounton } for pid=300 comm="syz-executor141" path="/root/file0" dev="sda1" ino=1137 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:user_home_t tclass=dir permissive=1 [ 24.210901][ T302] incfs: Can't find or create .index dir in ./file0 [ 24.218134][ T302] BUG: Dentry ffff8881e7a94880{i=0,n=.index} still in use (1) [unmount of fuse fuse] [ 24.227743][ T302] ------------[ cut here ]------------ [ 24.233213][ T302] WARNING: CPU: 1 PID: 302 at fs/dcache.c:1597 umount_check+0x179/0x1c0 [ 24.241500][ T302] Modules linked in: [ 24.245366][ T302] CPU: 1 PID: 302 Comm: syz-executor141 Not tainted 5.4.147-syzkaller-00036-geb4a5a5dbd5b #0 [ 24.255739][ T302] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 24.265766][ T302] RIP: 0010:umount_check+0x179/0x1c0 [ 24.271017][ T302] Code: ff 4c 8b 0b 48 81 c5 20 04 00 00 48 c7 c7 e0 14 c9 84 4c 89 fe 4c 89 f2 4c 89 f9 45 89 e8 31 c0 55 e8 b7 0e b3 ff 48 83 c4 08 <0f> 0b e9 fd fe ff ff 89 e9 80 e1 07 80 c1 03 38 c1 0f 8c d4 fe ff [ 24.290603][ T302] RSP: 0018:ffff8881de0d78e0 EFLAGS: 00010292 [ 24.296637][ T302] RAX: 0000000000000053 RBX: ffffffff85dde460 RCX: 8be02855dff58e00 [ 24.304576][ T302] RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000000 [ 24.312525][ T302] RBP: ffff8881de070420 R08: ffffffff814b2a4c R09: ffffed103bc1aed5 [ 24.320465][ T302] R10: ffffed103bc1aed5 R11: 0000000000000000 R12: dffffc0000000000 [ 24.328403][ T302] R13: 0000000000000001 R14: 0000000000000000 R15: ffff8881e7a94880 [ 24.336343][ T302] FS: 00007f6894398700(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000 [ 24.345240][ T302] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 24.351791][ T302] CR2: 00007f689445d2f8 CR3: 0000000005c0e000 CR4: 00000000003406e0 [ 24.359747][ T302] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 24.367685][ T302] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 24.375621][ T302] Call Trace: [ 24.378897][ T302] d_walk+0x2d9/0x540 [ 24.382848][ T302] ? __d_free+0x20/0x20 [ 24.386969][ T302] shrink_dcache_for_umount+0x8a/0x1a0 [ 24.392395][ T302] generic_shutdown_super+0x63/0x2a0 [ 24.397651][ T302] kill_anon_super+0x36/0x60 [ 24.402207][ T302] fuse_kill_sb_anon+0x16d/0x210 [ 24.407113][ T302] ? unregister_shrinker+0x1f7/0x260 [ 24.412641][ T302] deactivate_locked_super+0xaf/0x100 [ 24.418045][ T302] deactivate_super+0x168/0x210 [ 24.422871][ T302] cleanup_mnt+0x432/0x4e0 [ 24.427260][ T302] task_work_run+0x186/0x1b0 [ 24.431820][ T302] do_exit+0xc0a/0x2aa0 [ 24.435950][ T302] do_group_exit+0x15c/0x2c0 [ 24.440510][ T302] get_signal+0x150f/0x1e00 [ 24.445001][ T302] ? ksys_mount+0xe0/0xf0 [ 24.449311][ T302] ? kfree+0xe0/0x660 [ 24.453260][ T302] do_signal+0x3b/0x580 [ 24.457386][ T302] prepare_exit_to_usermode+0x207/0x310 [ 24.462919][ T302] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 24.468778][ T302] RIP: 0033:0x7f6894407c89 [ 24.473162][ T302] Code: Bad RIP value. [ 24.477196][ T302] RSP: 002b:00007f68943982f8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 24.485570][ T302] RAX: fffffffffffffffc RBX: 00007f68944934d0 RCX: 00007f6894407c89 [ 24.493516][ T302] RDX: 0000000020000140 RSI: 0000000020000100 RDI: 0000000020000180 [ 24.501459][ T302] RBP: 00007f6894460124 R08: 0000000000000000 R09: 0000000000000000 [ 24.509399][ T302] R10: 0000