1 files changed, 23 insertions, 0 deletions
diff --git a/recipes-connectivity/openssl/openssl/openssl-avoid-NULL-pointer-dereference-in-EVP_DigestInit_ex.patch b/recipes-connectivity/openssl/openssl/openssl-avoid-NULL-pointer-dereference-in-EVP_DigestInit_ex.patch
new file mode 100644
index 0000000..f736e5c
--- /dev/null
+++ b/recipes-connectivity/openssl/openssl/openssl-avoid-NULL-pointer-dereference-in-EVP_DigestInit_ex.patch
@@ -0,0 +1,23 @@
+openssl: avoid NULL pointer dereference in EVP_DigestInit_ex()
+
+We should avoid accessing the type pointer if it's NULL,
+this could happen if ctx->digest is not NULL.
+
+Upstream-Status: Submitted
+http://www.mail-archive.com/openssl-dev@openssl.org/msg32860.html
+
+Signed-off-by: Xufeng Zhang <xufeng.zhang@windriver.com>
+---
+Index: openssl-1.0.2h/crypto/evp/digest.c
+===================================================================
+--- openssl-1.0.2h.orig/crypto/evp/digest.c
++++ openssl-1.0.2h/crypto/evp/digest.c
+@@ -211,7 +211,7 @@ int EVP_DigestInit_ex(EVP_MD_CTX *ctx, c
+         type = ctx->digest;
+     }
+ #endif
+-    if (ctx->digest != type) {
++    if (type && (ctx->digest != type)) {
+         if (ctx->digest && ctx->digest->ctx_size) {
+             OPENSSL_free(ctx->md_data);
+             ctx->md_data = NULL;