From c3549a011529adf18aa44406994e0e77657ad702 Mon Sep 17 00:00:00 2001
From: Leah Neukirchen <leah@vuxu.org>
Date: Fri, 3 Nov 2017 21:40:18 +0100
Subject: parse_jobs: avoid out of bounds read

---
 xe.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'xe.c')

diff --git a/xe.c b/xe.c
index 5f93856..12f98fb 100644
--- a/xe.c
+++ b/xe.c
@@ -332,7 +332,7 @@ parse_jobs(char *s)
 	int n;
 
 #ifdef _SC_NPROCESSORS_ONLN
-	if (s[strlen(s) - 1] == 'x') {
+	if (*s && s[strlen(s) - 1] == 'x') {
 		n = (int)sysconf(_SC_NPROCESSORS_ONLN);
 		double d = 0.0;
 		errno = 0;
-- 
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