[ 7.774841][ T22] audit: type=1400 audit(1634413443.299:66): avc: denied { search } for pid=234 comm="getty" name="/" dev="tmpfs" ino=208 scontext=system_u:system_r:getty_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1 [ 7.778270][ T22] audit: type=1400 audit(1634413443.299:67): avc: denied { read write } for pid=234 comm="getty" name="utmp" dev="tmpfs" ino=10255 scontext=system_u:system_r:getty_t tcontext=system_u:object_r:tmpfs_t tclass=file permissive=1 [ 7.782150][ T22] audit: type=1400 audit(1634413443.299:68): avc: denied { open } for pid=234 comm="getty" path="/run/utmp" dev="tmpfs" ino=10255 scontext=system_u:system_r:getty_t tcontext=system_u:object_r:tmpfs_t tclass=file permissive=1 syzkaller syzkaller login: [ 17.304030][ T22] kauditd_printk_skb: 2 callbacks suppressed [ 17.304036][ T22] audit: type=1400 audit(1634413452.819:71): 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 [ 17.310709][ T22] audit: type=1400 audit(1634413452.829:72): avc: denied { write } for pid=265 comm="sh" path="pipe:[637]" dev="pipefs" ino=637 scontext=root:sysadm_r:sysadm_t tcontext=system_u:system_r:initrc_t tclass=fifo_file permissive=1 Warning: Permanently added '10.128.0.189' (ECDSA) to the list of known hosts. [ 23.607653][ T22] audit: type=1400 audit(1634413459.129:73): avc: denied { execmem } for pid=298 comm="syz-executor376" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 23.630039][ T22] audit: type=1400 audit(1634413459.149:74): avc: denied { mounton } for pid=300 comm="syz-executor376" 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 executing program [ 23.654462][ T22] audit: type=1400 audit(1634413459.169:75): avc: denied { mount } for pid=300 comm="syz-executor376" name="/" dev="fusectl" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fusefs_t tclass=filesystem permissive=1 [ 23.676957][ T22] audit: type=1400 audit(1634413459.169:76): avc: denied { mounton } for pid=300 comm="syz-executor376" path="/" dev="sda1" ino=2 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:root_t tclass=dir permissive=1 [ 23.698459][ T22] audit: type=1400 audit(1634413459.179:77): avc: denied { read write } for pid=300 comm="syz-executor376" name="loop0" dev="devtmpfs" ino=9394 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1 [ 23.698935][ T300] FAT-fs (loop0): Directory bread(block 6) failed [ 23.722780][ T22] audit: type=1400 audit(1634413459.179:78): avc: denied { open } for pid=300 comm="syz-executor376" path="/dev/loop0" dev="devtmpfs" ino=9394 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1 [ 23.746998][ T300] FAT-fs (loop0): Directory bread(block 6) failed [ 23.753430][ T22] audit: type=1400 audit(1634413459.179:79): avc: denied { ioctl } for pid=300 comm="syz-executor376" path="/dev/loop0" dev="devtmpfs" ino=9394 ioctlcmd=0x4c00 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1 [ 23.760066][ T300] incfs: Can't find or create .index dir in ./file0 [ 23.785584][ T22] audit: type=1400 audit(1634413459.199:80): avc: denied { mounton } for pid=300 comm="syz-executor376" path="/root/file0" dev="sda1" ino=1137 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:user_home_t tclass=dir permissive=1 [ 23.814611][ T22] audit: type=1400 audit(1634413459.249:81): avc: denied { mount } for pid=300 comm="syz-executor376" name="/" dev="loop0" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:dosfs_t tclass=filesystem permissive=1 [ 23.814765][ T300] BUG: Dentry ffff8881e666add0{i=0,n=.index} still in use (1) [unmount of vfat loop0] [ 23.836672][ T22] audit: type=1400 audit(1634413459.249:82): avc: denied { mounton } for pid=300 comm="syz-executor376" path="/root/file0" dev="loop0" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:dosfs_t tclass=dir permissive=1 [ 23.868991][ T300] ------------[ cut here ]------------ [ 23.874437][ T300] WARNING: CPU: 0 PID: 300 at fs/dcache.c:1597 umount_check+0x179/0x1c0 [ 23.882729][ T300] Modules linked in: [ 23.886596][ T300] CPU: 0 PID: 300 Comm: syz-executor376 Not tainted 5.4.125-syzkaller-00028-g73e6d86c30ee #0 [ 23.896704][ T300] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 23.906778][ T300] RIP: 0010:umount_check+0x179/0x1c0 [ 23.912029][ T300] Code: ff 4c 8b 0b 48 81 c5 20 04 00 00 48 c7 c7 20 0d e9 84 4c 89 fe 4c 89 f2 4c 89 f9 45 89 e8 31 c0 55 e8 07 a2 af 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 [ 23.931598][ T300] RSP: 0018:ffff8881de6b7a58 EFLAGS: 00010282 [ 23.937628][ T300] RAX: 0000000000000054 RBX: ffffffff85fc5e40 RCX: 2a251efe60db1d00 [ 23.945567][ T300] RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000000 [ 23.953506][ T300] RBP: ffff8881de102420 R08: ffffffff814e90e7 R09: ffffed103edc9608 [ 23.961450][ T300] R10: ffffed103edc9608 R11: 0000000000000000 R12: dffffc0000000000 [ 23.969477][ T300] R13: 0000000000000001 R14: 0000000000000000 R15: ffff8881e666add0 [ 23.977415][ T300] FS: 0000555555cf7300(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 [ 23.986311][ T300] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 23.992867][ T300] CR2: 00007f1b165611d0 CR3: 00000001ed612000 CR4: 00000000003406f0 [ 24.000810][ T300] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 24.008749][ T300] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 24.016705][ T300] Call Trace: [ 24.019971][ T300] d_walk+0x2d9/0x540 [ 24.023921][ T300] ? __d_free+0x20/0x20 [ 24.028059][ T300] shrink_dcache_for_umount+0x8a/0x1a0 [ 24.033486][ T300] generic_shutdown_super+0x63/0x2a0 [ 24.038751][ T300] kill_block_super+0x79/0xd0 [ 24.043412][ T300] deactivate_locked_super+0xaf/0x100 [ 24.048754][ T300] deactivate_super+0x1b3/0x270 [ 24.053586][ T300] ? deactivate_locked_super+0x100/0x100 [ 24.059186][ T300] ? dput+0x4de/0x5d0 [ 24.063136][ T300] ? _raw_spin_lock_irq+0xa4/0x1b0 [ 24.068215][ T300] ? find_next_bit+0xc6/0x110 [ 24.072858][ T300] cleanup_mnt+0x432/0x4e0 [ 24.077245][ T300] task_work_run+0x186/0x1b0 [ 24.081803][ T300] do_exit+0xcb9/0x2bf0 [ 24.085932][ T300] ? mm_update_next_owner+0x5c0/0x5c0 [ 24.091269][ T300] ? __up_read+0x6f/0x1b0 [ 24.095568][ T300] ? __down_read+0x210/0x210 [ 24.100126][ T300] ? check_preemption_disabled+0x154/0x330 [ 24.105898][ T300] ? debug_smp_processor_id+0x20/0x20 [ 24.111238][ T300] do_group_exit+0x15c/0x2c0 [ 24.115795][ T300] ? do_user_addr_fault+0x6b0/0xb40 [ 24.120960][ T300] __do_sys_exit_group+0x13/0x20 [ 24.125865][ T300] __se_sys_exit_group+0x10/0x10 [ 24.130769][ T300] __x64_sys_exit_group+0x37/0x40 [ 24.135759][ T300] do_syscall_64+0xcb/0x1e0 [ 24.140232][ T300] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 24.146095][ T300] RIP: 0033:0x7f1b164ebfc9 [ 24.150481][ T300] Code: Bad RIP value. [ 24.154514][ T300] RSP: 002b:00007fffc5d49448 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 24.162897][ T300] RAX: ffffffffffffffda RBX: 00007f1b16560330 RCX: 00007f1b164ebfc9 [ 24.170850][ T300] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 [ 24.178793][ T300] RBP: 0000000000000001 R08: ffffffffffffffc0 R09: 00007f1b1655ae40 [ 24.186731][ T300] R10: 0000000002000000 R11: 0000000000000246 R12: 00007f1b16560330 [ 24.194670][ T300] R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001 [ 24.202610][ T300] ---[ end trace 8645585adbd9ddc5 ]--- [ 24.208808][