loop6: 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+0x9a6/0x27a0 fs/hfsplus/unicode.c:188 hfsplus_compose_lookup fs/hfsplus/unicode.c:108 [inline] hfsplus_uni2asc+0x9a6/0x27a0 fs/hfsplus/unicode.c:188 hfsplus_readdir+0xd60/0x1a70 fs/hfsplus/dir.c:207 iterate_dir+0x452/0x620 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+0x4070/0x4310 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:4186 [inline] slab_alloc_node mm/slub.c:4229 [inline] __do_kmalloc_node mm/slub.c:4364 [inline] __kmalloc_noprof+0x95f/0x1310 mm/slub.c:4377 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+0x452/0x620 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+0x4070/0x4310 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: 7885 Comm: syz.6.565 Not tainted 6.16.0-syzkaller-11489-gd2eedaa3909b #0 PREEMPT(none) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025 =====================================================