overlay: filesystem on ./file0 not supported
=====================================================
BUG: KMSAN: uninit-value in case_fold fs/hfsplus/unicode.c:23 [inline]
BUG: KMSAN: uninit-value in hfsplus_strcasecmp+0x27e/0x730 fs/hfsplus/unicode.c:47
 case_fold fs/hfsplus/unicode.c:23 [inline]
 hfsplus_strcasecmp+0x27e/0x730 fs/hfsplus/unicode.c:47
 hfsplus_cat_case_cmp_key+0xb9/0x190 fs/hfsplus/catalog.c:26
 hfs_find_rec_by_key+0xab/0x240 fs/hfsplus/bfind.c:89
 __hfsplus_brec_find+0x271/0x840 fs/hfsplus/bfind.c:124
 hfsplus_brec_find+0x4df/0x9f0 fs/hfsplus/bfind.c:184
 hfsplus_brec_read+0x46/0x1f0 fs/hfsplus/bfind.c:211
 hfsplus_find_cat+0xb5/0x4f0 fs/hfsplus/catalog.c:202
 hfsplus_iget+0x77d/0xb80 fs/hfsplus/super.c:83
 hfsplus_lookup+0xd5f/0xf70 fs/hfsplus/dir.c:118
 __lookup_slow+0x560/0x760 fs/namei.c:1817
 lookup_slow+0x6a/0xd0 fs/namei.c:1834
 walk_component+0x444/0x650 fs/namei.c:2138
 lookup_last fs/namei.c:2636 [inline]
 path_lookupat+0x251/0x6b0 fs/namei.c:2660
 filename_lookup+0x2bd/0x800 fs/namei.c:2689
 user_path_at+0x91/0x3d0 fs/namei.c:3120
 do_faccessat+0x9d3/0x1540 fs/open.c:489
 __do_sys_faccessat fs/open.c:537 [inline]
 __se_sys_faccessat fs/open.c:535 [inline]
 __x64_sys_faccessat+0x97/0x100 fs/open.c:535
 x64_sys_call+0x303f/0x3db0 arch/x86/include/generated/asm/syscalls_64.h:270
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xd9/0x1b0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Uninit was created at:
 slab_post_alloc_hook mm/slub.c:4167 [inline]
 slab_alloc_node mm/slub.c:4210 [inline]
 __do_kmalloc_node mm/slub.c:4340 [inline]
 __kmalloc_noprof+0x95f/0x1310 mm/slub.c:4353
 kmalloc_noprof include/linux/slab.h:909 [inline]
 hfsplus_find_init+0x90/0x1d0 fs/hfsplus/bfind.c:21
 hfsplus_iget+0x359/0xb80 fs/hfsplus/super.c:81
 hfsplus_lookup+0xd5f/0xf70 fs/hfsplus/dir.c:118
 __lookup_slow+0x560/0x760 fs/namei.c:1817
 lookup_slow+0x6a/0xd0 fs/namei.c:1834
 walk_component+0x444/0x650 fs/namei.c:2138
 lookup_last fs/namei.c:2636 [inline]
 path_lookupat+0x251/0x6b0 fs/namei.c:2660
 filename_lookup+0x2bd/0x800 fs/namei.c:2689
 user_path_at+0x91/0x3d0 fs/namei.c:3120
 do_faccessat+0x9d3/0x1540 fs/open.c:489
 __do_sys_faccessat fs/open.c:537 [inline]
 __se_sys_faccessat fs/open.c:535 [inline]
 __x64_sys_faccessat+0x97/0x100 fs/open.c:535
 x64_sys_call+0x303f/0x3db0 arch/x86/include/generated/asm/syscalls_64.h:270
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xd9/0x1b0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

CPU: 1 UID: 0 PID: 7068 Comm: syz.1.246 Not tainted 6.15.0-rc3-syzkaller-00094-g02ddfb981de8 #0 PREEMPT(undef) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
=====================================================