From: Ivan Maidanski <ivmai@mail.ru>
Date: Fri, 8 Jun 2012 17:10:17 +0000 (+0400)
Subject: Fix CORD_cat_char_star to prevent SEGV in case of out-of-memory
X-Git-Tag: gc7_2c~1^2~1
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=5591275f04b1b94395e38eeada745cd97bc8b613;p=gc

Fix CORD_cat_char_star to prevent SEGV in case of out-of-memory

* cordbscs.c (CORD_cat_char_star): Check GC_MALLOC_ATOMIC result for
NULL (do OUT_OF_MEMORY in such case) to prevent SEGV.
---

diff --git a/cord/cordbscs.c b/cord/cordbscs.c
index 924bf445..5128daf5 100644
--- a/cord/cordbscs.c
+++ b/cord/cordbscs.c
@@ -188,6 +188,7 @@ CORD CORD_cat_char_star(CORD x, const char * y, size_t leny)
             result_len = right_len + leny;  /* length of new_right */
             if (result_len <= SHORT_LIMIT) {
                 new_right = GC_MALLOC_ATOMIC(result_len + 1);
+                if (new_right == 0) OUT_OF_MEMORY;
                 memcpy(new_right, right, right_len);
                 memcpy(new_right + right_len, y, leny);
                 new_right[result_len] = '\0';