diff options
| author | Steven Valdez <svaldez@google.com> | 2016-03-22 18:14:22 +0300 |
|---|---|---|
| committer | David Benjamin <davidben@google.com> | 2016-03-22 18:17:32 +0300 |
| commit | c087c332f89b86b7fc6768e461c97a5ef24b1670 (patch) | |
| tree | 7a70c1fee150149f779692dfa3f998eaec8fa344 /crypto/digest | |
| parent | be1224882962b63b716ef717377db75f0a805de5 (diff) | |
Fix potential double free in EVP_DigestInit_ex
There is a potential double free in EVP_DigestInit_ex. This is believed
to be reached only as a result of programmer error - but we should fix it
anyway.
(Imported from upstream's e78dc7e279ed98e1ab9845a70d14dafdfdc88f58)
Change-Id: I1da7be7db7afcbe9f30f168df000d64ed73d7edd
Reviewed-on: https://boringssl-review.googlesource.com/7541
Reviewed-by: David Benjamin <davidben@google.com>
Diffstat (limited to 'crypto/digest')
| -rw-r--r-- | crypto/digest/digest.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/crypto/digest/digest.c b/crypto/digest/digest.c index eb71b073..f47cd0a9 100644 --- a/crypto/digest/digest.c +++ b/crypto/digest/digest.c @@ -166,6 +166,7 @@ int EVP_DigestInit_ex(EVP_MD_CTX *ctx, const EVP_MD *type, ENGINE *engine) { if (ctx->digest != type) { if (ctx->digest && ctx->digest->ctx_size > 0) { OPENSSL_free(ctx->md_data); + ctx->md_data = NULL; } ctx->digest = type; if (type->ctx_size > 0) { |