loop1: detected capacity change from 0 to 1024
=====================================================
BUG: KMSAN: uninit-value in hfsplus_cat_case_cmp_key+0xd9/0x190 fs/hfsplus/catalog.c:23
 hfsplus_cat_case_cmp_key+0xd9/0x190 fs/hfsplus/catalog.c:23
 hfs_find_rec_by_key+0xae/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_lookup+0x293/0xf70 fs/hfsplus/dir.c:52
 __lookup_slow+0x563/0x760 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:2639 [inline]
 path_lookupat+0x251/0x6b0 fs/namei.c:2663
 filename_lookup+0x2bd/0x800 fs/namei.c:2692
 do_readlinkat+0xcb/0x8d0 fs/stat.c:576
 __do_sys_readlink fs/stat.c:613 [inline]
 __se_sys_readlink fs/stat.c:610 [inline]
 __x64_sys_readlink+0x9a/0x100 fs/stat.c:610
 x64_sys_call+0x38eb/0x3db0 arch/x86/include/generated/asm/syscalls_64.h:90
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xd9/0x210 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: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_lookup+0x104/0xf70 fs/hfsplus/dir.c:44
 __lookup_slow+0x563/0x760 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:2639 [inline]
 path_lookupat+0x251/0x6b0 fs/namei.c:2663
 filename_lookup+0x2bd/0x800 fs/namei.c:2692
 do_readlinkat+0xcb/0x8d0 fs/stat.c:576
 __do_sys_readlink fs/stat.c:613 [inline]
 __se_sys_readlink fs/stat.c:610 [inline]
 __x64_sys_readlink+0x9a/0x100 fs/stat.c:610
 x64_sys_call+0x38eb/0x3db0 arch/x86/include/generated/asm/syscalls_64.h:90
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xd9/0x210 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

CPU: 0 UID: 0 PID: 8852 Comm: syz.1.650 Tainted: G        W           6.16.0-rc2-syzkaller-00318-g739a6c93cc75 #0 PREEMPT(undef) 
Tainted: [W]=WARN
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
=====================================================