1 files changed, 6 insertions, 1 deletions
diff --git a/src/src/dkim.c b/src/src/dkim.c
index 05b5fec56..cb7fc7065 100644
--- a/src/src/dkim.c
+++ b/src/src/dkim.c
@@ -504,7 +504,12 @@ uschar *dkim_exim_sign(int dkim_fd,
         rc = NULL;
         goto CLEANUP;
       }
-      (void)read(privkey_fd,big_buffer,(big_buffer_size-2));
+      if (read(privkey_fd,big_buffer,(big_buffer_size-2)) < 0) {
+        log_write(0, LOG_MAIN|LOG_PANIC, "unable to read private key file: %s",
+	  dkim_private_key_expanded);
+        rc = NULL;
+        goto CLEANUP;
+      }
       (void)close(privkey_fd);
       dkim_private_key_expanded = big_buffer;
     }