================================================ WARNING: lock held when returning to user space! 6.18.0-rc7-next-20251128 #1 Not tainted ------------------------------------------------ syz-executor.6/76569 is leaving the kernel with locks still held! 1 lock held by syz-executor.6/76569: #0: ffff888017069c88 (&sb->s_type->i_mutex_key#21/1){+.+.}-{4:4}, at: start_creating_noperm+0x84/0xd0 EXT4-fs (loop2): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none. EXT4-fs (loop2): unmounting filesystem 00000000-0000-0000-0000-000000000000. loop6: detected capacity change from 0 to 64 FAT-fs (loop6): Invalid FSINFO signature: 0x00000000, 0x00000000 (sector = 1) FAT-fs (loop6): Invalid FSINFO signature: 0x00000000, 0x00000000 (sector = 1) loop2: detected capacity change from 0 to 264192 EXT4-fs error (device loop2): ext4_orphan_get:1417: comm syz-executor.2: bad orphan inode 55808 EXT4-fs (loop2): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none. EXT4-fs (loop2): unmounting filesystem 00000000-0000-0000-0000-000000000000. loop6: detected capacity change from 0 to 64 FAT-fs (loop6): Invalid FSINFO signature: 0x00000000, 0x00000000 (sector = 1) loop2: detected capacity change from 0 to 264192 EXT4-fs error (device loop2): ext4_orphan_get:1417: comm syz-executor.2: bad orphan inode 55808 EXT4-fs (loop2): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none. FAT-fs (loop6): Invalid FSINFO signature: 0x00000000, 0x00000000 (sector = 1) EXT4-fs (loop2): unmounting filesystem 00000000-0000-0000-0000-000000000000. loop6: detected capacity change from 0 to 64 FAT-fs (loop6): Invalid FSINFO signature: 0x00000000, 0x00000000 (sector = 1) FAT-fs (loop6): Invalid FSINFO signature: 0x00000000, 0x00000000 (sector = 1)