yelp/SOURCES/0012-Swap-the-if-checks-to-...

33 lines
1.1 KiB
Diff

From 3fe0efe361ca9fb697f82d67e0bd9036970f9884 Mon Sep 17 00:00:00 2001
From: Tomas Popela <tpopela@redhat.com>
Date: Mon, 23 Jul 2018 11:53:13 +0200
Subject: [PATCH 12/17] Swap the if() checks to avoid possible null pointer
dereference
yelp-3.28.1/libyelp/yelp-transform.c:501: deref_ptr: Directly dereferencing pointer "ctxt".
yelp-3.28.1/libyelp/yelp-transform.c:504: check_after_deref: Null-checking "ctxt" suggests that it may be null, but it has already been dereferenced on all paths leading to the check.
---
libyelp/yelp-transform.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/libyelp/yelp-transform.c b/libyelp/yelp-transform.c
index 7a5dc86e..0a1c8058 100644
--- a/libyelp/yelp-transform.c
+++ b/libyelp/yelp-transform.c
@@ -498,10 +498,10 @@ xslt_yelp_document (xsltTransformContextPtr ctxt,
debug_print (DB_FUNCTION, "entering\n");
- if (ctxt->state == XSLT_STATE_STOPPED)
+ if (!ctxt || !node || !inst || !comp)
return;
- if (!ctxt || !node || !inst || !comp)
+ if (ctxt->state == XSLT_STATE_STOPPED)
return;
transform = YELP_TRANSFORM (ctxt->_private);
--
2.19.1