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Diffstat (limited to '')
-rw-r--r-- | src/lib/libcrypto/bn/bn_lib.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/src/lib/libcrypto/bn/bn_lib.c b/src/lib/libcrypto/bn/bn_lib.c index a016cb7f53..8abe095af2 100644 --- a/src/lib/libcrypto/bn/bn_lib.c +++ b/src/lib/libcrypto/bn/bn_lib.c | |||
@@ -397,6 +397,12 @@ BIGNUM *bn_dup_expand(const BIGNUM *b, int words) | |||
397 | { | 397 | { |
398 | BIGNUM *r = NULL; | 398 | BIGNUM *r = NULL; |
399 | 399 | ||
400 | /* This function does not work if | ||
401 | * words <= b->dmax && top < words | ||
402 | * because BN_dup() does not preserve 'dmax'! | ||
403 | * (But bn_dup_expand() is not used anywhere yet.) | ||
404 | */ | ||
405 | |||
400 | if (words > b->dmax) | 406 | if (words > b->dmax) |
401 | { | 407 | { |
402 | BN_ULONG *a = bn_expand_internal(b, words); | 408 | BN_ULONG *a = bn_expand_internal(b, words); |