From: Sebastien GODARD <sysstat@users.noreply.github.com>
Date: Sun, 22 Sep 2019 16:12:20 +0000 (+0200)
Subject: iostat: Check string's size when copying
X-Git-Tag: v12.1.7~8
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=ecaea015258daa726c0512d6f29e4186ad0fbe6d;p=sysstat

iostat: Check string's size when copying

Make sure string's contents won't overflow.
Fix CID#349502.

Signed-off-by: Sebastien GODARD <sysstat@users.noreply.github.com>
---

diff --git a/iostat.c b/iostat.c
index ac9977d..34c4a87 100644
--- a/iostat.c
+++ b/iostat.c
@@ -249,7 +249,8 @@ struct io_device *add_list_device(struct io_device **dlist, char *name, int dtyp
 		}
 		memset(d->dev_stats[i], 0, sizeof(struct io_stats));
 	}
-	strcpy(d->name, name);
+	strncpy(d->name, name, MAX_NAME_LEN);
+	d->name[MAX_NAME_LEN - 1] = '\0';
 	d->exist = TRUE;
 	d->next = ds;