From: Chris Down <chris@chrisdown.name>
Date: Fri, 7 Jun 2019 05:28:10 +0000 (+0100)
Subject: cgroup: Prevent theoretical nullptr deref in unit mask calculation
X-Git-Tag: v243-rc1~303^2
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=refs%2Fpull%2F12756%2Fhead;p=thirdparty%2Fsystemd.git

cgroup: Prevent theoretical nullptr deref in unit mask calculation
---

diff --git a/src/core/cgroup.c b/src/core/cgroup.c
index a7263855dca..0c885d57440 100644
--- a/src/core/cgroup.c
+++ b/src/core/cgroup.c
@@ -1378,6 +1378,8 @@ static CGroupMask unit_get_cgroup_mask(Unit *u) {
 
         c = unit_get_cgroup_context(u);
 
+        assert(c);
+
         /* Figure out which controllers we need, based on the cgroup context object */
 
         if (c->cpu_accounting)