loop3: detected capacity change from 0 to 12
FAT-fs (loop3): Invalid FSINFO signature: 0x41615252, 0x72720000 (sector = 1)
FAT-fs (loop3): FAT read failed (blocknr 32)
================================================
WARNING: lock held when returning to user space!
6.18.0-rc7-next-20251128 #1 Not tainted
------------------------------------------------
syz-executor.7/4947 is leaving the kernel with locks still held!
1 lock held by syz-executor.7/4947:
 #0: ffff88801607a348 (&sb->s_type->i_mutex_key#24/1){+.+.}-{4:4}, at: start_creating_noperm+0x84/0xd0
loop5: detected capacity change from 0 to 13
FAT-fs (loop5): Invalid FSINFO signature: 0x41615252, 0x72720000 (sector = 1)
FAT-fs (loop5): FAT read failed (blocknr 32)