From 6e15d6c6f3bdb5750bb08c6db770c4bfc5eebbaf Mon Sep 17 00:00:00 2001
From: David Cantrell <dcantrell@redhat.com>
Date: Thu, 19 Mar 2009 11:05:51 -1000
Subject: Avoid SIGSEGV in doPwMount() when NULL is last parameter (#491192)

If NULL is given as the last parameter to doPwMount(), do not try
to dereference it.
---
 isys/imount.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

(limited to 'isys')

diff --git a/isys/imount.c b/isys/imount.c
index 614e67ee6..fd51fdefa 100644
--- a/isys/imount.c
+++ b/isys/imount.c
@@ -146,9 +146,11 @@ int doPwMount(char *dev, char *where, char *fs, char *options, char **err) {
 
     close(pipefd[1]);
 
-    if (*err != NULL) {
-        rc = readFD(pipefd[0], err);
-        rc = write(programLogFD, *err, 4096);
+    if (err != NULL) {
+        if (*err != NULL) {
+            rc = readFD(pipefd[0], err);
+            rc = write(programLogFD, *err, 4096);
+        }
     }
 
     close(pipefd[0]);
-- 
cgit