From: Christian Brauner <christian.brauner@ubuntu.com>
Date: Thu, 22 Feb 2018 00:28:20 +0000 (+0100)
Subject: cgfsng: fix off-by-one error
X-Git-Tag: lxc-3.0.0.beta1~17^2
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=cbe2185b8118103b07b10003bfb690f97bcebd78;p=thirdparty%2Flxc.git

cgfsng: fix off-by-one error

Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
---

diff --git a/src/lxc/cgroups/cgfsng.c b/src/lxc/cgroups/cgfsng.c
index c2d94b7d3..b614a094d 100644
--- a/src/lxc/cgroups/cgfsng.c
+++ b/src/lxc/cgroups/cgfsng.c
@@ -257,8 +257,8 @@ static char *cg_legacy_must_prefix_named(char *entry)
 	len = strlen(entry);
 	prefixed = must_alloc(len + 6);
 
-	memcpy(prefixed, "name=", sizeof("name="));
-	memcpy(prefixed + sizeof("name="), entry, len);
+	memcpy(prefixed, "name=", sizeof("name=") - 1);
+	memcpy(prefixed + sizeof("name=") - 1, entry, len);
 	prefixed[len + 5] = '\0';
 	return prefixed;
 }