loop0: detected capacity change from 0 to 1024
=====================================================
BUG: KMSAN: uninit-value in hfsplus_lookup+0x66b/0xef0 fs/hfsplus/dir.c:83
 hfsplus_lookup+0x66b/0xef0 fs/hfsplus/dir.c:83
 lookup_one_qstr_excl+0x233/0x520 fs/namei.c:1608
 filename_create+0x2fc/0x6d0 fs/namei.c:3890
 do_mkdirat+0x65/0x760 fs/namei.c:4135
 __do_sys_mkdir fs/namei.c:4163 [inline]
 __se_sys_mkdir fs/namei.c:4161 [inline]
 __ia32_sys_mkdir+0xa1/0xe0 fs/namei.c:4161
 do_syscall_32_irqs_on arch/x86/entry/common.c:112 [inline]
 __do_fast_syscall_32+0xa2/0x100 arch/x86/entry/common.c:178
 do_fast_syscall_32+0x37/0x80 arch/x86/entry/common.c:203
 do_SYSENTER_32+0x1f/0x30 arch/x86/entry/common.c:246
 entry_SYSENTER_compat_after_hwframe+0x70/0x82

Uninit was created at:
 __alloc_pages+0x9a4/0xe00 mm/page_alloc.c:4449
 alloc_pages+0xd01/0x1040
 alloc_slab_page mm/slub.c:1870 [inline]
 allocate_slab mm/slub.c:2017 [inline]
 new_slab+0x421/0x1570 mm/slub.c:2070
 ___slab_alloc+0x13db/0x33d0 mm/slub.c:3223
 __slab_alloc mm/slub.c:3322 [inline]
 __slab_alloc_node mm/slub.c:3375 [inline]
 slab_alloc_node mm/slub.c:3468 [inline]
 slab_alloc mm/slub.c:3486 [inline]
 __kmem_cache_alloc_lru mm/slub.c:3493 [inline]
 kmem_cache_alloc_lru+0x5ee/0xa10 mm/slub.c:3509
 alloc_inode_sb include/linux/fs.h:2868 [inline]
 hfsplus_alloc_inode+0x5a/0xc0 fs/hfsplus/super.c:627
 alloc_inode+0x83/0x440 fs/inode.c:259
 iget_locked+0x2dd/0xe80 fs/inode.c:1314
 hfsplus_iget+0x59/0xaf0 fs/hfsplus/super.c:64
 hfsplus_btree_open+0x13e/0x1d00 fs/hfsplus/btree.c:150
 hfsplus_fill_super+0x1113/0x26f0 fs/hfsplus/super.c:473
 mount_bdev+0x3d7/0x560 fs/super.c:1629
 hfsplus_mount+0x4d/0x60 fs/hfsplus/super.c:641
 legacy_get_tree+0x110/0x290 fs/fs_context.c:638
 vfs_get_tree+0xa5/0x520 fs/super.c:1750
 do_new_mount+0x68d/0x1550 fs/namespace.c:3335
 path_mount+0x73d/0x1f20 fs/namespace.c:3662
 do_mount fs/namespace.c:3675 [inline]
 __do_sys_mount fs/namespace.c:3884 [inline]
 __se_sys_mount+0x725/0x810 fs/namespace.c:3861
 __ia32_sys_mount+0xe3/0x150 fs/namespace.c:3861
 do_syscall_32_irqs_on arch/x86/entry/common.c:112 [inline]
 __do_fast_syscall_32+0xa2/0x100 arch/x86/entry/common.c:178
 do_fast_syscall_32+0x37/0x80 arch/x86/entry/common.c:203
 do_SYSENTER_32+0x1f/0x30 arch/x86/entry/common.c:246
 entry_SYSENTER_compat_after_hwframe+0x70/0x82

CPU: 0 PID: 5470 Comm: syz-executor.0 Not tainted 6.6.0-rc3-syzkaller-00113-g1c84724ccb1a #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/06/2023
=====================================================