[tests/selinux] pr775-checkpolicy-revdeps: test if various processes can use mmap syscall on io_uring

[tests/selinux] pr775-checkpolicy-revdeps: test if various processes can use mmap syscall on io_uring

[Milos Malik]

            A new commit has been pushed.

            Repo   : tests/selinux
            Branch : pr775-checkpolicy-revdeps
            Commit : 79eea844d1ffee28e90815c81ec1786e9062e781
            Author : Milos Malik <mmalik@redhat.com>
            Date   : 2023-05-19T15:55:58+00:00
            Stats  : +16/-1 in 3 file(s)
            URL    : https://src.fedoraproject.org/tests/selinux/c/79eea844d1ffee28e90815c81ec1786e9062e781?branch=pr775-checkpolicy-revdeps

            Log:
            test if various processes can use mmap syscall on io_uring

As many reported BZs confirm, various QEMU related programs use
the io_uring interface, but SELinux prevents them from using the
mmap syscall on it. The TC reproduces a similar situation.

In order to support the io_uring interface fully, I believe that
SELinux policy should allow the map permission on the anon_inode
class. The TC looks for appropriate policy rules.

The TC covers BZ#2025714, BZ#2187745 and their duplicates.

---
diff --git a/selinux-policy/anon_inode-and-similar/Makefile b/selinux-policy/anon_inode-and-similar/Makefile
index f7866fa..0a053b2 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" >> $(METADATA)
+	@echo "Requires:        libselinux policycoreutils selinux-policy selinux-policy-targeted gcc glibc-headers setools-console audit fio" >> $(METADATA)
 	@echo "RhtsRequires:    library(selinux-policy/common)" >> $(METADATA)
 	@echo "Priority:        Normal" >> $(METADATA)
 	@echo "License:         GPLv2" >> $(METADATA)
@@ -63,6 +63,9 @@ $(METADATA): Makefile
 	@echo "Environment:     AVC_ERROR=+no_avc_check" >> $(METADATA)
 	@echo "Releases:        -RHEL4" >> $(METADATA)
 	@echo "Bug:             1974559" >> $(METADATA)
+	@echo "Bug:             2027660" >> $(METADATA) # RHEL-9
+	@echo "Bug:             2025714" >> $(METADATA) # Fedora 35
+	@echo "Bug:             2187745" >> $(METADATA) # RHEL-9
 
 	rhts-lint $(METADATA)
 

diff --git a/selinux-policy/anon_inode-and-similar/main.fmf b/selinux-policy/anon_inode-and-similar/main.fmf
index e490f04..e9ed5d7 100644
--- a/selinux-policy/anon_inode-and-similar/main.fmf
+++ b/selinux-policy/anon_inode-and-similar/main.fmf
@@ -15,6 +15,7 @@ recommend:
   - glibc-headers
   - setools-console
   - audit
+  - fio
 environment:
     AVC_ERROR: +no_avc_check
 duration: 30m
@@ -28,6 +29,8 @@ tag:
 link:
   - relates: https://bugzilla.redhat.com/show_bug.cgi?id=1974559
   - relates: https://bugzilla.redhat.com/show_bug.cgi?id=2027660
+  - verifies: https://bugzilla.redhat.com/show_bug.cgi?id=2025714
+  - verifies: https://bugzilla.redhat.com/show_bug.cgi?id=2187745
 adjust:
   - enabled: false
     when: distro == rhel-4, rhel-5, rhel-6, rhel-7, rhel-8

diff --git a/selinux-policy/anon_inode-and-similar/runtest.sh b/selinux-policy/anon_inode-and-similar/runtest.sh
index 35b18d6..d7ddd4f 100755
--- a/selinux-policy/anon_inode-and-similar/runtest.sh
+++ b/selinux-policy/anon_inode-and-similar/runtest.sh
@@ -60,9 +60,18 @@ rlJournalStart
         rlRun "rm -f reproducer"
     rlPhaseEnd
 
+    rlPhaseStartTest "mmap on io_uring - bz#2025714 + bz#2187745"
+        rlSESearchRule "allow unconfined_t unconfined_t : anon_inode { map } [ ]"
+        rlSESearchRule "allow svirt_t svirt_t : anon_inode { map } [ ]"
+        rlSESearchRule "allow virtd_t virtd_t : anon_inode { map } [ ]"
+
+        rlRun "fio --filename=/root/pokus --iodepth=16 --rw=write --ioengine=io_uring --bs=16k --size=2G --numjobs=30 --runtime=100s --group_reporting=1 --name=mytest"
+    rlPhaseEnd
+
     rlPhaseStartCleanup
         sleep 2
         rlSECheckAVC
     rlPhaseEnd
     rlJournalPrintText
 rlJournalEnd
+