hfs: keylen 9474 too large
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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_cat_find_brec+0xe9/0x430 fs/hfs/catalog.c:194
 hfs_fill_super+0x536/0xb80 fs/hfs/super.c:350
 get_tree_bdev_flags+0x6e6/0x920 fs/super.c:1681
 get_tree_bdev+0x38/0x50 fs/super.c:1704
 hfs_get_tree+0x35/0x40 fs/hfs/super.c:388
 vfs_get_tree+0xb3/0x5c0 fs/super.c:1804
 do_new_mount+0x738/0x1610 fs/namespace.c:3902
 path_mount+0x6db/0x1e90 fs/namespace.c:4226
 do_mount fs/namespace.c:4239 [inline]
 __do_sys_mount fs/namespace.c:4450 [inline]
 __se_sys_mount+0x6eb/0x7d0 fs/namespace.c:4427
 __x64_sys_mount+0xe4/0x150 fs/namespace.c:4427
 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+0xd9/0x210 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Local variable fd created at:
 hfs_fill_super+0x67/0xb80 fs/hfs/super.c:316
 get_tree_bdev_flags+0x6e6/0x920 fs/super.c:1681

CPU: 1 UID: 0 PID: 6946 Comm: syz.0.264 Not tainted 6.16.0-rc4-syzkaller-00123-g4c06e63b9203 #0 PREEMPT(undef) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
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