diff mbox

[PULL,4/9] crypto: avoid two coverity false positive error reports

Message ID 0e1d02452bf2c3486406dd48524a5b1de3c0eba8.1449211229.git.mjt@msgid.tls.msk.ru
State New
Headers show

Commit Message

Michael Tokarev Dec. 4, 2015, 6:57 a.m. UTC 
From: "Daniel P. Berrange" <berrange@redhat.com>

In qcrypto_tls_creds_get_path() coverity complains that
we are checking '*creds' for NULL, despite having
dereferenced it previously. This is harmless bug due
to fact that the trace call was too early. Moving it
after the cleanup gets the desired semantics.

In qcrypto_tls_creds_check_cert_key_purpose() coverity
complains that we're passing a pointer to a previously
free'd buffer into gnutls_x509_crt_get_key_purpose_oid()
This is harmless because we're passing a size == 0, so
gnutls won't access the buffer, but rather just report
what size it needs to be. We can avoid it though by
explicitly setting the buffer to NULL after free'ing
it.

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
---
 crypto/tlscreds.c     | 4 ++--
 crypto/tlscredsx509.c | 1 +
 2 files changed, 3 insertions(+), 2 deletions(-)
diff mbox

Patch

diff --git a/crypto/tlscreds.c b/crypto/tlscreds.c
index 5ec982c..e7d9c1c 100644
--- a/crypto/tlscreds.c
+++ b/crypto/tlscreds.c
@@ -123,10 +123,10 @@  qcrypto_tls_creds_get_path(QCryptoTLSCreds *creds,
         goto cleanup;
     }
 
-    trace_qcrypto_tls_creds_get_path(creds, filename,
-                                     *cred ? *cred : "<none>");
     ret = 0;
  cleanup:
+    trace_qcrypto_tls_creds_get_path(creds, filename,
+                                     *cred ? *cred : "<none>");
     return ret;
 }
 
diff --git a/crypto/tlscredsx509.c b/crypto/tlscredsx509.c
index d080deb..26f18cb 100644
--- a/crypto/tlscredsx509.c
+++ b/crypto/tlscredsx509.c
@@ -255,6 +255,7 @@  qcrypto_tls_creds_check_cert_key_purpose(QCryptoTLSCredsX509 *creds,
         }
 
         g_free(buffer);
+        buffer = NULL;
     }
 
     if (isServer) {