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Merge pull request #144 from libtom/fix/coverity-dsa_import-double-free

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fix coverity finding: dsa_import double free
This commit is contained in:
karel-m 2017-02-28 01:17:18 +01:00 committed by GitHub
commit 30382d0e31
1 changed files with 5 additions and 4 deletions
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7
src/pk/dsa/dsa_import.c
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@ -99,14 +99,16 @@ int dsa_import(const unsigned char *in, unsigned long inlen, dsa_key *key)
goto LBL_ERR; goto LBL_ERR;
} }
err = der_decode_subject_public_key_info(in, inlen, err = der_decode_subject_public_key_info(in, inlen, PKA_DSA,
PKA_DSA, tmpbuf, &tmpbuf_len, tmpbuf, &tmpbuf_len,
LTC_ASN1_SEQUENCE, params, 3); LTC_ASN1_SEQUENCE, params, 3);
if (err != CRYPT_OK) { if (err != CRYPT_OK) {
XFREE(tmpbuf);
goto LBL_ERR; goto LBL_ERR;
} }
if ((err=der_decode_integer(tmpbuf, tmpbuf_len, key->y)) != CRYPT_OK) { if ((err=der_decode_integer(tmpbuf, tmpbuf_len, key->y)) != CRYPT_OK) {
XFREE(tmpbuf);
goto LBL_ERR; goto LBL_ERR;
} }
@ -125,7 +127,6 @@ LBL_OK:
return CRYPT_OK; return CRYPT_OK;
LBL_ERR: LBL_ERR:
XFREE(tmpbuf);
mp_clear_multi(key->p, key->g, key->q, key->x, key->y, NULL); mp_clear_multi(key->p, key->g, key->q, key->x, key->y, NULL);
return err; return err;
} }