Warning: Permanently added '10.128.1.25' (ECDSA) to the list of known hosts. executing program [ 25.261122][ T22] audit: type=1400 audit(1635317998.499:73): avc: denied { execmem } for pid=298 comm="syz-executor694" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 25.283721][ T22] audit: type=1400 audit(1635317998.519:74): avc: denied { mounton } for pid=300 comm="syz-executor694" 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 [ 25.307790][ T22] audit: type=1400 audit(1635317998.519:75): avc: denied { mount } for pid=300 comm="syz-executor694" name="/" dev="fusectl" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fusefs_t tclass=filesystem permissive=1 [ 25.330291][ T22] audit: type=1400 audit(1635317998.519:76): avc: denied { mounton } for pid=300 comm="syz-executor694" path="/" dev="sda1" ino=2 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:root_t tclass=dir permissive=1 [ 25.347531][ T300] FAT-fs (loop0): Invalid FSINFO signature: 0x00000000, 0x00000000 (sector = 1) [ 25.352123][ T22] audit: type=1400 audit(1635317998.519:77): avc: denied { read write } for pid=300 comm="syz-executor694" name="loop0" dev="devtmpfs" ino=9365 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1 [ 25.373884][ T300] incfs: Can't find or create .index dir in ./file0 [ 25.385231][ T22] audit: type=1400 audit(1635317998.519:78): avc: denied { open } for pid=300 comm="syz-executor694" path="/dev/loop0" dev="devtmpfs" ino=9365 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1 [ 25.415922][ T22] audit: type=1400 audit(1635317998.519:79): avc: denied { ioctl } for pid=300 comm="syz-executor694" path="/dev/loop0" dev="devtmpfs" ino=9365 ioctlcmd=0x4c00 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1 [ 25.416052][ T300] BUG: Dentry ffff8881e72e5cc0{i=0,n=.index} still in use (1) [unmount of msdos loop0] [ 25.441611][ T22] audit: type=1400 audit(1635317998.549:80): avc: denied { mounton } for pid=300 comm="syz-executor694" path="/root/file0" dev="sda1" ino=1137 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:user_home_t tclass=dir permissive=1 [ 25.451294][ T300] ------------[ cut here ]------------ [ 25.473901][ T22] audit: type=1400 audit(1635317998.599:81): avc: denied { mount } for pid=300 comm="syz-executor694" name="/" dev="loop0" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:dosfs_t tclass=filesystem permissive=1 [ 25.479311][ T300] WARNING: CPU: 1 PID: 300 at fs/dcache.c:1597 umount_check+0x179/0x1c0 [ 25.479318][ T300] Modules linked in: [ 25.501353][ T22] audit: type=1400 audit(1635317998.599:82): avc: denied { mounton } for pid=300 comm="syz-executor694" path="/root/file0" dev="loop0" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:dosfs_t tclass=dir permissive=1 [ 25.509619][ T300] CPU: 1 PID: 300 Comm: syz-executor694 Not tainted 5.4.147-syzkaller-00038-g7eb444cc279e #0 [ 25.509623][ T300] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 25.509632][ T300] RIP: 0010:umount_check+0x179/0x1c0 [ 25.509639][ T300] Code: ff 4c 8b 0b 48 81 c5 20 04 00 00 48 c7 c7 20 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 [ 25.509642][ T300] RSP: 0018:ffff8881de537b78 EFLAGS: 00010286 [ 25.509653][ T300] RAX: 0000000000000055 RBX: ffffffff85dc6560 RCX: 1cfdcc30d295e900 [ 25.595556][ T300] RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000000 [ 25.603500][ T300] RBP: ffff8881de74e420 R08: ffffffff814b2a4c R09: ffffed103bca6f27 [ 25.611439][ T300] R10: ffffed103bca6f27 R11: 0000000000000000 R12: dffffc0000000000 [ 25.619381][ T300] R13: 0000000000000001 R14: 0000000000000000 R15: ffff8881e72e5cc0 [ 25.627323][ T300] FS: 0000555555a0b300(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000 [ 25.636227][ T300] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 25.642781][ T300] CR2: 00007fdea85181d0 CR3: 00000001ed55b000 CR4: 00000000003406e0 [ 25.650726][ T300] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 25.658784][ T300] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 25.666731][ T300] Call Trace: [ 25.670101][ T300] d_walk+0x2d9/0x540 [ 25.674054][ T300] ? __d_free+0x20/0x20 [ 25.678178][ T300] shrink_dcache_for_umount+0x8a/0x1a0 [ 25.683605][ T300] generic_shutdown_super+0x63/0x2a0 [ 25.688862][ T300] kill_block_super+0x79/0xd0 [ 25.693517][ T300] deactivate_locked_super+0xaf/0x100 [ 25.698871][ T300] deactivate_super+0x168/0x210 [ 25.703698][ T300] cleanup_mnt+0x432/0x4e0 [ 25.708088][ T300] task_work_run+0x186/0x1b0 [ 25.712656][ T300] do_exit+0xc0a/0x2aa0 [ 25.716794][ T300] do_group_exit+0x15c/0x2c0 [ 25.721374][ T300] ? do_user_addr_fault+0x6b0/0xb40 [ 25.726543][ T300] __do_sys_exit_group+0x13/0x20 [ 25.731454][ T300] __se_sys_exit_group+0x10/0x10 [ 25.736362][ T300] __x64_sys_exit_group+0x37/0x40 [ 25.741356][ T300] do_syscall_64+0xcb/0x1e0 [ 25.745846][ T300] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 25.751906][ T300] RIP: 0033:0x7fdea84a2fb9 [ 25.756294][ T300] Code: Bad RIP value. [ 25.760443][ T300] RSP: 002b:00007ffd3a079cb8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 25.768822][ T300] RAX: ffffffffffffffda RBX: 00007fdea8517330 RCX: 00007fdea84a2fb9 [ 25.776772][ T300] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 [ 25.784761][ T300] RBP: 0000000000000001 R08: ffffffffffffffc0 R09: 00007fdea8511e40 [ 25.792707][ T300] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fdea8517330 [ 25.800667][ T300] R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001 [ 25.808612][ T300] ---[ end trace d9a103e0d6395cb2 ]---