From cc46cac3bc59c35e22e17471d70e28fd3705d4da Mon Sep 17 00:00:00 2001
From: Philippe Antoine <contact@catenacyber.fr>
Date: Sun, 20 Mar 2022 21:34:42 +0000
Subject: strings: limits allocation size for SplitN

So that `strings.SplitN("", "T", int(144115188075855872))` does not panic.

Change-Id: Iea00417e61780bcaf0fee02fa2b18026d89bc545
GitHub-Last-Rev: d1f45b44a8011ddb27c71e1bc9983b62b5d3d771
GitHub-Pull-Request: golang/go#51755
Reviewed-on: https://go-review.googlesource.com/c/go/+/393654
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Trust: Tobias Klauser <tobias.klauser@gmail.com>
---
 src/strings/strings.go | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'src/strings/strings.go')

diff --git a/src/strings/strings.go b/src/strings/strings.go
index 5793d9e26f..ed3184b59c 100644
--- a/src/strings/strings.go
+++ b/src/strings/strings.go
@@ -244,6 +244,9 @@ func genSplit(s, sep string, sepSave, n int) []string {
 		n = Count(s, sep) + 1
 	}
 
+	if n > len(s)+1 {
+		n = len(s) + 1
+	}
 	a := make([]string, n)
 	n--
 	i := 0
-- 
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