3 files changed, 7 insertions, 10 deletions

diff --git a/src/lib/libcrypto/bn/bn_convert.c b/src/lib/libcrypto/bn/bn_convert.c
index f09c9091e7..60075e53ed 100644
--- a/src/lib/libcrypto/bn/bn_convert.c
+++ b/src/lib/libcrypto/bn/bn_convert.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: bn_convert.c,v 1.15 2023/07/09 18:37:58 tb Exp $ */
+/* $OpenBSD: bn_convert.c,v 1.16 2024/04/16 13:04:05 jsing Exp $ */
 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
  * All rights reserved.
  *
@@ -431,7 +431,7 @@ bn_dec2bn_cbs(BIGNUM **bnp, CBS *cbs)
                 bn = BN_new();
         if (bn == NULL)
                 goto err;
-        if (!bn_expand(bn, digits * 4))
+        if (!bn_expand_bits(bn, digits * 4))
                 goto err;
 
         if ((d = digits % BN_DEC_NUM) == 0)
@@ -628,7 +628,7 @@ bn_hex2bn_cbs(BIGNUM **bnp, CBS *cbs)
                 bn = BN_new();
         if (bn == NULL)
                 goto err;
-        if (!bn_expand(bn, digits * 4))
+        if (!bn_expand_bits(bn, digits * 4))
                 goto err;
 
         if (!CBS_get_bytes(cbs, cbs, digits))
diff --git a/src/lib/libcrypto/bn/bn_lib.c b/src/lib/libcrypto/bn/bn_lib.c
index b59e65a1e1..6988a70f3b 100644
--- a/src/lib/libcrypto/bn/bn_lib.c
+++ b/src/lib/libcrypto/bn/bn_lib.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: bn_lib.c,v 1.91 2024/04/15 14:35:25 jsing Exp $ */
+/* $OpenBSD: bn_lib.c,v 1.92 2024/04/16 13:04:05 jsing Exp $ */
 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
  * All rights reserved.
  *
@@ -219,13 +219,10 @@ bn_expand_internal(BIGNUM *bn, int words)
 }
 
 int
-bn_expand(BIGNUM *bn, int bits)
+bn_expand_bits(BIGNUM *bn, size_t bits)
 {
         int words;
 
-        if (bits < 0)
-                return 0;
-
         if (bits > (INT_MAX - BN_BITS2 + 1))
                 return 0;
 
diff --git a/src/lib/libcrypto/bn/bn_local.h b/src/lib/libcrypto/bn/bn_local.h
index 2c82e323fa..cffc5a2ea1 100644
--- a/src/lib/libcrypto/bn/bn_local.h
+++ b/src/lib/libcrypto/bn/bn_local.h
@@ -1,4 +1,4 @@
-/* $OpenBSD: bn_local.h,v 1.41 2024/04/10 15:09:03 tb Exp $ */
+/* $OpenBSD: bn_local.h,v 1.42 2024/04/16 13:04:05 jsing Exp $ */
 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
  * All rights reserved.
  *
@@ -259,7 +259,7 @@ int bn_mul_mont(BN_ULONG *rp, const BN_ULONG *ap, const BN_ULONG *bp,
     const BN_ULONG *np, const BN_ULONG *n0, int num);
 
 void bn_correct_top(BIGNUM *a);
-int bn_expand(BIGNUM *a, int bits);
+int bn_expand_bits(BIGNUM *a, size_t bits);
 int bn_wexpand(BIGNUM *a, int words);
 
 BN_ULONG bn_add_words(BN_ULONG *rp, const BN_ULONG *ap, const BN_ULONG *bp,