[tests/selinux] pr775-checkpolicy-revdeps: test if stress-ng can create anon_inode objects

[tests/selinux] pr775-checkpolicy-revdeps: test if stress-ng can create anon_inode objects

[Milos Malik]

            A new commit has been pushed.

            Repo   : tests/selinux
            Branch : pr775-checkpolicy-revdeps
            Commit : af629f99a2daae826230b3a60d3f66160d1deba8
            Author : Milos Malik <mmalik@redhat.com>
            Date   : 2024-03-27T15:30:28+01:00
            Stats  : +9/-1 in 3 file(s)
            URL    : https://src.fedoraproject.org/tests/selinux/c/af629f99a2daae826230b3a60d3f66160d1deba8?branch=pr775-checkpolicy-revdeps

            Log:
            test if stress-ng can create anon_inode objects

A recently filed Fedora bug revealed that SELinux prevents the
stress-ng processes from creating anon_inode objects via the
memfd_secret syscall. The TC reproduces the situation.

In order to support the expected stress-ng functonality, I believe
that SELinux policy should allow the action. The TC looks for
appropriate policy rules.

The TC covers BZ#2270895.

---
diff --git a/selinux-policy/anon_inode-and-similar/Makefile b/selinux-policy/anon_inode-and-similar/Makefile
index 0e381d6..e6d8ba8 100644
--- a/selinux-policy/anon_inode-and-similar/Makefile
+++ b/selinux-policy/anon_inode-and-similar/Makefile
@@ -54,7 +54,7 @@ $(METADATA): Makefile
 	@echo "Type:            Regression" >> $(METADATA)
 	@echo "TestTime:        30m" >> $(METADATA)
 	@echo "RunFor:          selinux-policy" >> $(METADATA)
-	@echo "Requires:        libselinux policycoreutils selinux-policy selinux-policy-targeted gcc glibc-headers setools-console audit fio grubby" >> $(METADATA)
+	@echo "Requires:        libselinux policycoreutils selinux-policy selinux-policy-targeted gcc glibc-headers setools-console audit fio grubby stress-ng" >> $(METADATA)
 	@echo "RhtsRequires:    library(selinux-policy/common)" >> $(METADATA)
 	@echo "Priority:        Normal" >> $(METADATA)
 	@echo "License:         GPLv2" >> $(METADATA)
@@ -68,6 +68,7 @@ $(METADATA): Makefile
 	@echo "Bug:             2025714" >> $(METADATA) # Fedora 35
 	@echo "Bug:             2187745" >> $(METADATA) # RHEL-9
 	@echo "Bug:             RHEL-11792" >> $(METADATA) # RHEL-9
+	@echo "Bug:             2270895" >> $(METADATA) # Fedora 41
 
 	rhts-lint $(METADATA)
 

diff --git a/selinux-policy/anon_inode-and-similar/main.fmf b/selinux-policy/anon_inode-and-similar/main.fmf
index 755b0cd..6ef3a5d 100644
--- a/selinux-policy/anon_inode-and-similar/main.fmf
+++ b/selinux-policy/anon_inode-and-similar/main.fmf
@@ -17,6 +17,7 @@ recommend:
   - audit
   - fio
   - grubby
+  - stress-ng
 environment:
     AVC_ERROR: +no_avc_check
 duration: 30m
@@ -36,6 +37,7 @@ link:
   - verifies: https://bugzilla.redhat.com/show_bug.cgi?id=2025714
   - verifies: https://bugzilla.redhat.com/show_bug.cgi?id=2187745
   - verifies: https://issues.redhat.com/browse/RHEL-11792
+  - verifies: https://bugzilla.redhat.com/show_bug.cgi?id=2270895
 adjust:
   - enabled: false
     when: distro == rhel-4, rhel-5, rhel-6, rhel-7, rhel-8, centos-stream-8

diff --git a/selinux-policy/anon_inode-and-similar/runtest.sh b/selinux-policy/anon_inode-and-similar/runtest.sh
index 9359ba3..ea0818c 100755
--- a/selinux-policy/anon_inode-and-similar/runtest.sh
+++ b/selinux-policy/anon_inode-and-similar/runtest.sh
@@ -97,6 +97,11 @@ rlJournalStart
         rlSESearchRule "allow unconfined_service_t unconfined_service_t : io_uring { cmd } [ ]"
     rlPhaseEnd
 
+    rlPhaseStartTest "bz#2270895"
+        rlSESearchRule "allow unconfined_t unconfined_t : anon_inode { create } [ ]"
+        rlRun "stress-ng --resources 16 --timeout 5 --log-file /dev/null"
+    rlPhaseEnd
+
     rlPhaseStartCleanup
         sleep 2
         rlSECheckAVC