From d48bf06e18c22f8304f6066b60fa560452dbd71f Mon Sep 17 00:00:00 2001
From: Mark Yen <mark.yen@suse.com>
Date: Tue, 3 Oct 2023 16:58:10 -0700
Subject: [PATCH] Don't support cgroupns on cgroups v1

Fixes #4108

Signed-off-by: Mark Yen <mark.yen@suse.com>
---
 executor/oci/spec_linux.go | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/executor/oci/spec_linux.go b/executor/oci/spec_linux.go
index cd9912b90..50121f790 100644
--- a/executor/oci/spec_linux.go
+++ b/executor/oci/spec_linux.go
@@ -150,9 +150,13 @@ func getTracingSocket() string {
 
 func cgroupNamespaceSupported() bool {
 	cgroupNSOnce.Do(func() {
-		if _, err := os.Stat("/proc/self/ns/cgroup"); !os.IsNotExist(err) {
-			supportsCgroupNS = true
+		if _, err := os.Stat("/proc/self/ns/cgroup"); os.IsNotExist(err) {
+			return
 		}
+		if _, err := os.Stat("/sys/fs/cgroup/cgroup.subtree_control"); os.IsNotExist(err) {
+			return
+		}
+		supportsCgroupNS = true
 	})
 	return supportsCgroupNS
 }