fix potential memory leak when allocation fails

PR: 801
Submitted by: Nils Larsch

diff --git a/crypto/pem/pem_lib.c b/crypto/pem/pem_lib.c
index 529329f9f9aeb758a1371a9558a8fcacfd567b4a..82815067b39bc333c16aff2ac58bb5fe471e2b44 100644 (file)
--- a/crypto/pem/pem_lib.c
+++ b/crypto/pem/pem_lib.c
@@ -625,6 +625,9 @@ int PEM_read_bio(BIO *bp, char **name, char **header, unsigned char **data,
        dataB=BUF_MEM_new();
        if ((nameB == NULL) || (headerB == NULL) || (dataB == NULL))
                {
+               BUF_MEM_free(nameB);
+               BUF_MEM_free(headerB);
+               BUF_MEM_free(dataB);
                PEMerr(PEM_F_PEM_READ_BIO,ERR_R_MALLOC_FAILURE);
                return(0);
                }