hfs: keylen 94 too large
=====================================================
BUG: KMSAN: uninit-value in hfs_brec_find+0x6ff/0x9f0 fs/hfs/bfind.c:141
 hfs_brec_find+0x6ff/0x9f0 fs/hfs/bfind.c:141
 hfs_brec_read+0x3f/0x1f0 fs/hfs/bfind.c:165
 hfs_lookup+0x1cc/0x410 fs/hfs/dir.c:32
 __lookup_slow+0x560/0x760 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:2636 [inline]
 path_lookupat+0x251/0x6b0 fs/namei.c:2660
 filename_lookup+0x2bd/0x800 fs/namei.c:2689
 kern_path+0x89/0x3b0 fs/namei.c:2822
 tomoyo_mount_acl security/tomoyo/mount.c:136 [inline]
 tomoyo_mount_permission+0xcec/0xfe0 security/tomoyo/mount.c:237
 tomoyo_sb_mount+0x4e/0x70 security/tomoyo/tomoyo.c:415
 security_sb_mount+0x169/0x630 security/security.c:1570
 path_mount+0x103/0x1e90 fs/namespace.c:4150
 do_mount fs/namespace.c:4221 [inline]
 __do_sys_mount fs/namespace.c:4432 [inline]
 __se_sys_mount+0x6eb/0x7d0 fs/namespace.c:4409
 __x64_sys_mount+0xe4/0x150 fs/namespace.c:4409
 x64_sys_call+0xfa7/0x3db0 arch/x86/include/generated/asm/syscalls_64.h:166
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xd9/0x1b0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Local variable fd created at:
 hfs_lookup+0x5c/0x410 fs/hfs/dir.c:24
 __lookup_slow+0x560/0x760 fs/namei.c:1817

CPU: 1 UID: 0 PID: 12068 Comm: syz.1.1154 Tainted: G        W           6.15.0-rc3-syzkaller-00094-g02ddfb981de8 #0 PREEMPT(undef) 
Tainted: [W]=WARN
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/29/2025
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