syzbot

loop0: detected capacity change from 0 to 64
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BUG: KMSAN: uninit-value in hfs_brec_keylen+0x423/0x610 fs/hfs/brec.c:46
 hfs_brec_keylen+0x423/0x610 fs/hfs/brec.c:46
 __hfs_brec_find+0x111/0x830 fs/hfs/bfind.c:69
 hfs_brec_find+0x436/0x980 fs/hfs/bfind.c:138
 hfs_cat_move+0x116d/0x12e0 fs/hfs/catalog.c:372
 hfs_rename+0x344/0x500 fs/hfs/dir.c:299
 vfs_rename+0x1d9d/0x2280 fs/namei.c:5086
 do_renameat2+0x1577/0x1b80 fs/namei.c:5235
 __do_sys_rename fs/namei.c:5282 [inline]
 __se_sys_rename fs/namei.c:5280 [inline]
 __x64_sys_rename+0xe8/0x140 fs/namei.c:5280
 x64_sys_call+0x3a1e/0x3c80 arch/x86/include/generated/asm/syscalls_64.h:83
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xcd/0x1e0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Local variable data created at:
 hfs_bnode_read_u16+0x3d/0x90 fs/hfs/bnode.c:-1
 hfs_brec_keylen+0x23e/0x610 fs/hfs/brec.c:45

CPU: 0 UID: 0 PID: 5794 Comm: syz-executor252 Not tainted 6.15.0-rc2-syzkaller #0 PREEMPT(undef) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
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