From: Christian Brauner <christian.brauner@ubuntu.com>
Date: Wed, 15 Apr 2020 09:56:54 +0000 (+0200)
Subject: cgroups: do not pass NULL pointer
X-Git-Tag: lxc-5.0.0~451^2~12
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=83b25c4d371676bbdf164f14227ab9260a8ad530;p=thirdparty%2Flxc.git

cgroups: do not pass NULL pointer

Fixes: Coverity 1461752.
Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
---

diff --git a/src/lxc/cgroups/cgfsng.c b/src/lxc/cgroups/cgfsng.c
index a6ee6875e..cabc39fb3 100644
--- a/src/lxc/cgroups/cgfsng.c
+++ b/src/lxc/cgroups/cgfsng.c
@@ -2736,6 +2736,9 @@ static int device_cgroup_rule_parse_devpath(struct device_item *device,
 			return ret_set_errno(-1, EINVAL);
 	}
 
+	if (!mode)
+		return ret_errno(EINVAL);
+
 	if (device_cgroup_parse_access(device, mode) < 0)
 		return -1;