Fix dsa & rsa signature dupctx() so that ctx->propq is strduped

Discovered when fixing up ecdsa code.

Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/13520)
This commit is contained in:
Shane Lontis 2020-11-26 15:06:34 +10:00
parent 283320281b
commit c2386b81fe
2 changed files with 13 additions and 2 deletions

View File

@ -85,7 +85,6 @@ typedef struct {
/* main digest */
EVP_MD *md;
EVP_MD_CTX *mdctx;
size_t mdsize;
int operation;
} PROV_DSA_CTX;
@ -361,7 +360,6 @@ static void dsa_freectx(void *vpdsactx)
ctx->propq = NULL;
ctx->mdctx = NULL;
ctx->md = NULL;
ctx->mdsize = 0;
DSA_free(ctx->dsa);
OPENSSL_free(ctx);
}
@ -382,6 +380,7 @@ static void *dsa_dupctx(void *vpdsactx)
dstctx->dsa = NULL;
dstctx->md = NULL;
dstctx->mdctx = NULL;
dstctx->propq = NULL;
if (srcctx->dsa != NULL && !DSA_up_ref(srcctx->dsa))
goto err;
@ -397,6 +396,11 @@ static void *dsa_dupctx(void *vpdsactx)
|| !EVP_MD_CTX_copy_ex(dstctx->mdctx, srcctx->mdctx))
goto err;
}
if (srcctx->propq != NULL) {
dstctx->propq = OPENSSL_strdup(srcctx->propq);
if (dstctx->propq == NULL)
goto err;
}
return dstctx;
err:

View File

@ -870,6 +870,7 @@ static void *rsa_dupctx(void *vprsactx)
dstctx->md = NULL;
dstctx->mdctx = NULL;
dstctx->tbuf = NULL;
dstctx->propq = NULL;
if (srcctx->rsa != NULL && !RSA_up_ref(srcctx->rsa))
goto err;
@ -890,6 +891,12 @@ static void *rsa_dupctx(void *vprsactx)
goto err;
}
if (srcctx->propq != NULL) {
dstctx->propq = OPENSSL_strdup(srcctx->propq);
if (dstctx->propq == NULL)
goto err;
}
return dstctx;
err:
rsa_freectx(dstctx);