Displaying 1 result from an estimated 1 matches for "1f1ab6933".
2017 Nov 03
2
[PATCH] diff: avoid potential null pointer dereference on error
...returns a null pointer; later on,
free_tree() is called unconditionally on the variables, thus
dereferencing null pointers.
Thus guard the free_tree() invocations.
---
diff/diff.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/diff/diff.c b/diff/diff.c
index 5851a1c9c..1f1ab6933 100644
--- a/diff/diff.c
+++ b/diff/diff.c
@@ -389,8 +389,10 @@ main (int argc, char *argv[])
errors++;
}
- free_tree (tree1);
- free_tree (tree2);
+ if (tree1)
+ free_tree (tree1);
+ if (tree2)
+ free_tree (tree2);
free_drives (drvs);
free_drives (drvs2);
--
2.13.6