EXT4-fs (loop5): get root inode failed EXT4-fs (loop5): mount failed loop7: detected capacity change from 0 to 136 No source specified ================================================ WARNING: lock held when returning to user space! 6.18.0-rc7-next-20251128 #1 Not tainted ------------------------------------------------ syz-executor.4/8371 is leaving the kernel with locks still held! 1 lock held by syz-executor.4/8371: #0: ffff888018b99c88 (&sb->s_type->i_mutex_key#21/1){+.+.}-{4:4}, at: start_creating_noperm+0x84/0xd0 netlink: 104 bytes leftover after parsing attributes in process `syz-executor.0'. isofs_fill_super: get root inode failed netlink: 104 bytes leftover after parsing attributes in process `syz-executor.0'. loop5: detected capacity change from 0 to 264192 EXT4-fs (loop5): ext4_check_descriptors: Block bitmap for group 0 overlaps superblock EXT4-fs (loop5): ext4_check_descriptors: Inode bitmap for group 0 overlaps superblock EXT4-fs (loop5): ext4_check_descriptors: Inode table for group 0 overlaps superblock EXT4-fs (loop5): ext4_check_descriptors: Checksum for group 0 failed (60729!=0) EXT4-fs error (device loop5): __ext4_get_inode_loc:4829: comm syz-executor.5: Invalid inode table block 0 in block_group 0 EXT4-fs (loop5): get root inode failed EXT4-fs (loop5): mount failed loop2: detected capacity change from 0 to 136 isofs_fill_super: get root inode failed loop7: detected capacity change from 0 to 136 isofs_fill_super: get root inode failed loop5: detected capacity change from 0 to 264192 EXT4-fs (loop5): ext4_check_descriptors: Checksum for group 0 failed (46507!=0) EXT4-fs (loop5): mounted filesystem 00000000-0000-0000-0000-000000000000 ro without journal. Quota mode: writeback. EXT4-fs (loop5): unmounting filesystem 00000000-0000-0000-0000-000000000000.