From: Karel Zak <kzak@redhat.com>
Date: Mon, 21 Jun 2021 13:29:43 +0000 (+0200)
Subject: fsck: check errno after strto..()
X-Git-Tag: v2.37.1~53
X-Git-Url: http://git.ipfire.org/gitweb/gitweb.cgi?a=commitdiff_plain;h=b2db509d13482da329527dffced1218962aef9d6;p=thirdparty%2Futil-linux.git

fsck: check errno after strto..()

Addresses: https://github.com/karelzak/util-linux/issues/1356
Signed-off-by: Karel Zak <kzak@redhat.com>
---

diff --git a/disk-utils/fsck.c b/disk-utils/fsck.c
index fe114d7298..b0f9ccb8d5 100644
--- a/disk-utils/fsck.c
+++ b/disk-utils/fsck.c
@@ -169,8 +169,9 @@ static int string_to_int(const char *s)
 	long l;
 	char *p;
 
+	errno = 0;
 	l = strtol(s, &p, 0);
-	if (*p || l == LONG_MIN || l == LONG_MAX || l < 0 || l > INT_MAX)
+	if (errno || *p || l == LONG_MIN || l == LONG_MAX || l < 0 || l > INT_MAX)
 		return -1;
 
 	return (int) l;