From: Karel Zak <kzak@redhat.com>
Date: Mon, 21 Jun 2021 13:34:06 +0000 (+0200)
Subject: wipefs: check errno after strto..()
X-Git-Tag: v2.38-rc1~404
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=95bfc92361819a4aaba528245f7077944f925087;p=thirdparty%2Futil-linux.git

wipefs: check errno after strto..()

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

diff --git a/misc-utils/wipefs.c b/misc-utils/wipefs.c
index 1b265b48cf..78dc63ee7a 100644
--- a/misc-utils/wipefs.c
+++ b/misc-utils/wipefs.c
@@ -334,7 +334,10 @@ static struct wipe_desc *get_desc_for_probe(struct wipe_control *ctl,
 	} else
 		return NULL;
 
+	errno = 0;
 	*offset = strtoll(off, NULL, 10);
+	if (errno)
+		return NULL;
 
 	/* Filter out by -t <type> */
 	if (ctl->type_pattern && !match_fstype(type, ctl->type_pattern))