loop3: detected capacity change from 0 to 1024
=====================================================
BUG: KMSAN: uninit-value in hfsplus_compose_lookup fs/hfsplus/unicode.c:108 [inline]
BUG: KMSAN: uninit-value in hfsplus_uni2asc+0x99f/0x25e0 fs/hfsplus/unicode.c:181
 hfsplus_compose_lookup fs/hfsplus/unicode.c:108 [inline]
 hfsplus_uni2asc+0x99f/0x25e0 fs/hfsplus/unicode.c:181
 hfsplus_readdir+0xd60/0x1a70 fs/hfsplus/dir.c:207
 iterate_dir+0x716/0x920 fs/readdir.c:108
 __do_compat_sys_getdents fs/readdir.c:579 [inline]
 __se_compat_sys_getdents fs/readdir.c:565 [inline]
 __ia32_compat_sys_getdents+0x1df/0x600 fs/readdir.c:565
 ia32_sys_call+0x2eac/0x42c0 arch/x86/include/generated/asm/syscalls_32.h:142
 do_syscall_32_irqs_on arch/x86/entry/syscall_32.c:83 [inline]
 __do_fast_syscall_32+0xb0/0x150 arch/x86/entry/syscall_32.c:306
 do_fast_syscall_32+0x38/0x80 arch/x86/entry/syscall_32.c:331
 do_SYSENTER_32+0x1f/0x30 arch/x86/entry/syscall_32.c:369
 entry_SYSENTER_compat_after_hwframe+0x84/0x8e

Uninit was created at:
 slab_post_alloc_hook mm/slub.c:4154 [inline]
 slab_alloc_node mm/slub.c:4197 [inline]
 __do_kmalloc_node mm/slub.c:4327 [inline]
 __kmalloc_noprof+0x95f/0x1310 mm/slub.c:4340
 kmalloc_noprof include/linux/slab.h:909 [inline]
 hfsplus_find_init+0x90/0x1d0 fs/hfsplus/bfind.c:21
 hfsplus_readdir+0x1dc/0x1a70 fs/hfsplus/dir.c:144
 iterate_dir+0x716/0x920 fs/readdir.c:108
 __do_compat_sys_getdents fs/readdir.c:579 [inline]
 __se_compat_sys_getdents fs/readdir.c:565 [inline]
 __ia32_compat_sys_getdents+0x1df/0x600 fs/readdir.c:565
 ia32_sys_call+0x2eac/0x42c0 arch/x86/include/generated/asm/syscalls_32.h:142
 do_syscall_32_irqs_on arch/x86/entry/syscall_32.c:83 [inline]
 __do_fast_syscall_32+0xb0/0x150 arch/x86/entry/syscall_32.c:306
 do_fast_syscall_32+0x38/0x80 arch/x86/entry/syscall_32.c:331
 do_SYSENTER_32+0x1f/0x30 arch/x86/entry/syscall_32.c:369
 entry_SYSENTER_compat_after_hwframe+0x84/0x8e

CPU: 0 UID: 0 PID: 14645 Comm: syz.3.3159 Not tainted 6.16.0-rc2-syzkaller-00231-g75f5f23f8787 #0 PREEMPT(undef) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
=====================================================