From e709eb829448ce040087a3fc5481db6bfcaae212 Mon Sep 17 00:00:00 2001
From: "Arnold D. Robbins" <arnold@skeeve.com>
Date: Wed, 3 Aug 2022 13:00:54 +0300
Subject: [PATCH] Smal bug fix in builtin.c.

Reference:https://git.savannah.gnu.org/gitweb/?p=gawk.git;a=commitdiff;h=e709eb829448ce040087a3fc5481db6bfcaae212
Conflict:delete changlog
---
 builtin.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/builtin.c b/builtin.c
index d7ba82c..3eee9b9 100644
--- a/builtin.c
+++ b/builtin.c
@@ -963,7 +963,10 @@ check_pos:
 					s1++;
 					n0--;
 				}
-				if (val >= num_args) {
+				// val could be less than zero if someone provides a field width
+				// so large that it causes integer overflow. Mainly fuzzers do this,
+				// but let's try to be good anyway.
+				if (val < 0 || val >= num_args) {
 					toofew = true;
 					break;
 				}
-- 
2.27.0

