commit da5dcd936656f524dd0ae7cb2685245f07f5720f
author Bram Moolenaar <Bram@vim.org> Tue Jan 19 14:31:20 2016 +0100
committer Bram Moolenaar <Bram@vim.org> Tue Jan 19 14:31:20 2016 +0100
tree 7d90cdd1743d579bac2bddcfe8c0cfbdafda348c
parent 301417041bdb15264a9c8ff20e4fea4dcc12c478

patch 7.4.1136
Problem:    Wrong argument to assert_exception() causes a crash. (reported by
            Coverity)
Solution:   Check for NULL pointer.  Add a test.

src/eval.c

diff --git a/src/eval.c b/src/eval.c
index 0d83f1d..34fdd67 100644
--- a/src/eval.c
+++ b/src/eval.c
@@ -9278,7 +9278,8 @@
 	assert_error(&ga);
 	ga_clear(&ga);
     }
-    else if (strstr((char *)vimvars[VV_EXCEPTION].vv_str, error) == NULL)
+    else if (error != NULL
+	    && strstr((char *)vimvars[VV_EXCEPTION].vv_str, error) == NULL)
     {
 	prepare_assert_error(&ga);
 	fill_assert_error(&ga, &argvars[1], NULL, &argvars[0],