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Ensure ECDSA_size always returns >= 0

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Fixes #10484

Signed-off-by: William Brawner <me@wbrawner.com>
This commit is contained in:
William Brawner 2020-04-05 09:39:41 -07:00
parent d251c4ecc1
commit 0bd62a2d17
1 changed files with 2 additions and 0 deletions
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crypto/ec/ec_asn1.c
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@ -1297,5 +1297,7 @@ int ECDSA_size(const EC_KEY *r)
i = i2d_ASN1_INTEGER(&bs, NULL); i = i2d_ASN1_INTEGER(&bs, NULL);
i += i; /* r and s */ i += i; /* r and s */
ret = ASN1_object_size(1, i, V_ASN1_SEQUENCE); ret = ASN1_object_size(1, i, V_ASN1_SEQUENCE);
if (ret < 0)
return 0;
return ret; return ret;
} }