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evp: fix Coverity 1485668 argument cannot be negative 

Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/15635)
This commit is contained in:
Pauli 2021-06-07 09:42:54 +10:00
parent 9428977994
commit dacb0d8f79
1 changed files with 5 additions and 1 deletions
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6
crypto/evp/e_bf.c
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@ -38,7 +38,11 @@ IMPLEMENT_BLOCK_CIPHER(bf, ks, BF, EVP_BF_KEY, NID_bf, 8, 16, 8, 64,
static int bf_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
const unsigned char *iv, int enc)
{
BF_set_key(&data(ctx)->ks, EVP_CIPHER_CTX_get_key_length(ctx), key);
int len = EVP_CIPHER_CTX_get_key_length(ctx);
if (len < 0)
return 0;
BF_set_key(&data(ctx)->ks, len, key);
return 1;
}