================================================ WARNING: lock held when returning to user space! 6.18.0-rc7-next-20251127 #1 Not tainted ------------------------------------------------ syz-executor.4/3932 is leaving the kernel with locks still held! 1 lock held by syz-executor.4/3932: #0: ffff88801c808188 (&sb->s_type->i_mutex_key#18/1){+.+.}-{4:4}, at: start_creating_noperm+0x84/0xd0 loop2: detected capacity change from 0 to 64 FAT-fs (loop2): Invalid FSINFO signature: 0x00000000, 0x00000000 (sector = 1) FAT-fs (loop2): Invalid FSINFO signature: 0x00000000, 0x00000000 (sector = 1)