mirror of
https://github.com/openwrt/openwrt.git
synced 2024-12-25 16:31:13 +00:00
54 lines
1.7 KiB
Diff
54 lines
1.7 KiB
Diff
|
From 68b02a8ab798b7e916c8141a36ab69d7493fc707 Mon Sep 17 00:00:00 2001
|
||
|
From: Eneas U de Queiroz <cote2004-github@yahoo.com>
|
||
|
Date: Wed, 14 Nov 2018 13:58:06 -0200
|
||
|
Subject: [PATCH 3/7] eng_devcrypto: fix copy of unitilialized digest
|
||
|
|
||
|
If the source ctx has not been initialized, don't initialize the copy
|
||
|
either.
|
||
|
|
||
|
Signed-off-by: Eneas U de Queiroz <cote2004-github@yahoo.com>
|
||
|
|
||
|
Reviewed-by: Matthias St. Pierre <Matthias.St.Pierre@ncp-e.com>
|
||
|
Reviewed-by: Richard Levitte <levitte@openssl.org>
|
||
|
(Merged from https://github.com/openssl/openssl/pull/7585)
|
||
|
|
||
|
(cherry picked from commit ae8183690fa53b978d4647563f5a521c4cafe94c)
|
||
|
|
||
|
--- a/crypto/engine/eng_devcrypto.c
|
||
|
+++ b/crypto/engine/eng_devcrypto.c
|
||
|
@@ -338,7 +338,8 @@ static int devcrypto_ciphers(ENGINE *e,
|
||
|
|
||
|
struct digest_ctx {
|
||
|
struct session_op sess;
|
||
|
- int init;
|
||
|
+ /* This signals that the init function was called, not that it succeeded. */
|
||
|
+ int init_called;
|
||
|
};
|
||
|
|
||
|
static const struct digest_data_st {
|
||
|
@@ -403,7 +404,7 @@ static int digest_init(EVP_MD_CTX *ctx)
|
||
|
const struct digest_data_st *digest_d =
|
||
|
get_digest_data(EVP_MD_CTX_type(ctx));
|
||
|
|
||
|
- digest_ctx->init = 1;
|
||
|
+ digest_ctx->init_called = 1;
|
||
|
|
||
|
memset(&digest_ctx->sess, 0, sizeof(digest_ctx->sess));
|
||
|
digest_ctx->sess.mac = digest_d->devcryptoid;
|
||
|
@@ -476,14 +477,9 @@ static int digest_copy(EVP_MD_CTX *to, c
|
||
|
(struct digest_ctx *)EVP_MD_CTX_md_data(to);
|
||
|
struct cphash_op cphash;
|
||
|
|
||
|
- if (digest_from == NULL)
|
||
|
+ if (digest_from == NULL || digest_from->init_called != 1)
|
||
|
return 1;
|
||
|
|
||
|
- if (digest_from->init != 1) {
|
||
|
- SYSerr(SYS_F_IOCTL, EINVAL);
|
||
|
- return 0;
|
||
|
- }
|
||
|
-
|
||
|
if (!digest_init(to)) {
|
||
|
SYSerr(SYS_F_IOCTL, errno);
|
||
|
return 0;
|