From: Kamalesh Babulal <kamalesh.babulal@oracle.com>
Date: Tue, 7 Feb 2023 23:22:50 +0000 (-0700)
Subject: wrapper: fix segfault in cgroup_new_cgroup()
X-Git-Tag: v3.1.0~221
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a8973c694a83229ef74e96e44a740dceabff1db3;p=thirdparty%2Flibcgroup.git

wrapper: fix segfault in cgroup_new_cgroup()

Passing NULL in the place of the cgroup name as an argument to
cgroup_new_cgroup() API will segfault, fix by adding a check to validate
cgroup name.

Signed-off-by: Kamalesh Babulal <kamalesh.babulal@oracle.com>
Signed-off-by: Tom Hromatka <tom.hromatka@oracle.com>
---

diff --git a/src/wrapper.c b/src/wrapper.c
index a1a1efbf..0e724116 100644
--- a/src/wrapper.c
+++ b/src/wrapper.c
@@ -42,8 +42,12 @@ void init_cgroup_table(struct cgroup *cgroups, size_t count)
 
 struct cgroup *cgroup_new_cgroup(const char *name)
 {
-	struct cgroup *cgroup = calloc(1, sizeof(struct cgroup));
+	struct cgroup *cgroup;
 
+	if (!name)
+		return NULL;
+
+	cgroup = calloc(1, sizeof(struct cgroup));
 	if (!cgroup)
 		return NULL;