patch 8.1.1895: using NULL pointer when out of memory

Problem: Using NULL pointer when out of memory. Solution: Bail out or skip the code using the pointer. (Zu-Ming Jiang, closes #4805, closes #4843, closes #4939, closes #4844)
2019-08-20 22:58:37 +02:00
parent 1058c9d9b5
commit 6f10c70b59
5 changed files with 35 additions and 12 deletions
--- a/src/ops.c
+++ b/src/ops.c
@@ -4556,6 +4556,11 @@ do_join(

    /* allocate the space for the new line */
    newp = alloc(sumsize + 1);
+    if (newp == NULL)
+    {
+	ret = FAIL;
+	goto theend;
+    }
    cend = newp + sumsize;
    *cend = 0;