================================================ WARNING: lock held when returning to user space! 6.18.0-rc7-next-20251128 #1 Not tainted ------------------------------------------------ syz-executor.7/45871 is leaving the kernel with locks still held! 1 lock held by syz-executor.7/45871: #0: ffff88800b5f8f08 (&sb->s_type->i_mutex_key#27/1){+.+.}-{4:4}, at: start_creating_noperm+0x84/0xd0 loop0: detected capacity change from 0 to 2224 ISO 9660 Extensions: Microsoft Joliet Level 3 ISOFS: root inode is unusable. Disabling Rock Ridge and switching to Joliet. ISOFS: changing to secondary root isofs_fill_super: get root inode failed loop4: detected capacity change from 0 to 2232 loop6: detected capacity change from 0 to 264192 ISO 9660 Extensions: Microsoft Joliet Level 3 ISOFS: root inode is unusable. Disabling Rock Ridge and switching to Joliet. ISOFS: changing to secondary root EXT4-fs error (device loop6): ext4_quota_enable:7177: inode #3: comm syz-executor.6: iget: bad extra_isize 2349 (inode size 1024) EXT4-fs error (device loop6): ext4_quota_enable:7179: comm syz-executor.6: Bad quota inode: 3, type: 0 EXT4-fs warning (device loop6): ext4_enable_quotas:7217: Failed to enable quota tracking (type=0, err=-117, ino=3). Please run e2fsck to fix. EXT4-fs (loop6): mount failed EXT4-fs error (device loop6): ext4_quota_enable:7177: inode #3: comm syz-executor.6: iget: bad extra_isize 2349 (inode size 1024) EXT4-fs error (device loop6): ext4_quota_enable:7179: comm syz-executor.6: Bad quota inode: 3, type: 0 EXT4-fs warning (device loop6): ext4_enable_quotas:7217: Failed to enable quota tracking (type=0, err=-117, ino=3). Please run e2fsck to fix. EXT4-fs (loop6): mount failed