ldm_validate_partition_table(): Disk read failed. Dev loop0: unable to read RDB block 0 loop0: unable to read partition table loop_reread_partitions: partition scan of loop0 () failed (rc=-5) ================================================ WARNING: lock held when returning to user space! 4.14.293-syzkaller #0 Not tainted ------------------------------------------------ syz-executor.0/9822 is leaving the kernel with locks still held! 1 lock held by syz-executor.0/9822: #0: (&lo->lo_ctl_mutex/1){+.+.}, at: [] lo_ioctl+0x87/0x1cd0 drivers/block/loop.c:1419 netlink: 84 bytes leftover after parsing attributes in process `syz-executor.1'. netlink: 84 bytes leftover after parsing attributes in process `syz-executor.1'. unregister_netdevice: waiting for ip6gre0 to become free. Usage count = -1