diff options
| author | Otto Moerbeek <otto@cvs.openbsd.org> | 2003-08-21 08:14:20 +0000 |
|---|---|---|
| committer | Otto Moerbeek <otto@cvs.openbsd.org> | 2003-08-21 08:14:20 +0000 |
| commit | 47c10a7a25eef46729d8abffdb6e8450a65f96f2 (patch) | |
| tree | 468ba8b480a8c3f4a48be126e1c369495375223e /lib/libcrypto | |
| parent | fa0078ee81b77dd854163a6a3450f176b1026135 (diff) | |
Do not produce a corrupt BIGNUM when adding 0 to 0 using BN_add_word().
ok markus@
Diffstat (limited to 'lib/libcrypto')
| -rw-r--r-- | lib/libcrypto/bn/bn_word.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/lib/libcrypto/bn/bn_word.c b/lib/libcrypto/bn/bn_word.c index 988e0ca7b37..ab858d70ff6 100644 --- a/lib/libcrypto/bn/bn_word.c +++ b/lib/libcrypto/bn/bn_word.c @@ -110,6 +110,9 @@ int BN_add_word(BIGNUM *a, BN_ULONG w) BN_ULONG l; int i; + if ((w & BN_MASK2) == 0) + return(1); + if (a->neg) { a->neg=0; |