=====================================================
BUG: KMSAN: uninit-value in case_fold fs/hfsplus/unicode.c:23 [inline]
BUG: KMSAN: uninit-value in hfsplus_strcasecmp+0x1ca/0x770 fs/hfsplus/unicode.c:47
 case_fold fs/hfsplus/unicode.c:23 [inline]
 hfsplus_strcasecmp+0x1ca/0x770 fs/hfsplus/unicode.c:47
 hfsplus_cat_case_cmp_key+0xde/0x190 fs/hfsplus/catalog.c:26
 hfs_find_rec_by_key+0xb1/0x240 fs/hfsplus/bfind.c:100
 __hfsplus_brec_find+0x26f/0x7b0 fs/hfsplus/bfind.c:135
 hfsplus_brec_find+0x445/0x970 fs/hfsplus/bfind.c:195
 hfsplus_brec_read+0x46/0x1a0 fs/hfsplus/bfind.c:222
 hfsplus_find_cat+0xdb/0x460 fs/hfsplus/catalog.c:202
 hfsplus_iget+0x740/0xaf0 fs/hfsplus/super.c:82
 hfsplus_lookup+0xce4/0xf00 fs/hfsplus/dir.c:118
 __lookup_slow+0x506/0x6e0 fs/namei.c:1692
 lookup_slow+0x6a/0xd0 fs/namei.c:1709
 walk_component+0x467/0x650 fs/namei.c:2004
 lookup_last fs/namei.c:2461 [inline]
 path_lookupat+0x27d/0x6f0 fs/namei.c:2485
 filename_lookup+0x22f/0x750 fs/namei.c:2514
 user_path_at_empty+0x8b/0x3a0 fs/namei.c:2921
 user_path_at include/linux/namei.h:57 [inline]
 ksys_umount fs/namespace.c:1916 [inline]
 __do_sys_umount fs/namespace.c:1924 [inline]
 __se_sys_umount fs/namespace.c:1922 [inline]
 __x64_sys_umount+0x149/0x240 fs/namespace.c:1922
 x64_sys_call+0x3da/0x3b50 arch/x86/include/generated/asm/syscalls_64.h:167
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcf/0x1e0 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Uninit was created at:
 slab_post_alloc_hook mm/slub.c:3804 [inline]
 slab_alloc_node mm/slub.c:3845 [inline]
 __do_kmalloc_node mm/slub.c:3965 [inline]
 __kmalloc+0x6e4/0x1000 mm/slub.c:3979
 kmalloc include/linux/slab.h:632 [inline]
 hfsplus_find_init+0x91/0x250 fs/hfsplus/bfind.c:21
 hfsplus_iget+0x3e1/0xaf0 fs/hfsplus/super.c:80
 hfsplus_lookup+0xce4/0xf00 fs/hfsplus/dir.c:118
 __lookup_slow+0x506/0x6e0 fs/namei.c:1692
 lookup_slow+0x6a/0xd0 fs/namei.c:1709
 walk_component+0x467/0x650 fs/namei.c:2004
 lookup_last fs/namei.c:2461 [inline]
 path_lookupat+0x27d/0x6f0 fs/namei.c:2485
 filename_lookup+0x22f/0x750 fs/namei.c:2514
 user_path_at_empty+0x8b/0x3a0 fs/namei.c:2921
 user_path_at include/linux/namei.h:57 [inline]
 ksys_umount fs/namespace.c:1916 [inline]
 __do_sys_umount fs/namespace.c:1924 [inline]
 __se_sys_umount fs/namespace.c:1922 [inline]
 __x64_sys_umount+0x149/0x240 fs/namespace.c:1922
 x64_sys_call+0x3da/0x3b50 arch/x86/include/generated/asm/syscalls_64.h:167
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcf/0x1e0 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

CPU: 1 PID: 5040 Comm: syz-executor.0 Not tainted 6.9.0-rc5-syzkaller-00031-g71b1543c83d6 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
=====================================================