[tests/selinux] pr775-checkpolicy-revdeps: kernel-confined-exec: add test for coredump disabled via /usr/bin/false

[tests/selinux] pr775-checkpolicy-revdeps: kernel-confined-exec: add test for coredump disabled via /usr/bin/false

[Ondrej Mosnacek]

            A new commit has been pushed.

            Repo   : tests/selinux
            Branch : pr775-checkpolicy-revdeps
            Commit : a54b9e0d6b2e500328996e75bcd7c433aded557a
            Author : Ondrej Mosnacek <omosnace@redhat.com>
            Date   : 2023-05-11T15:37:59+02:00
            Stats  : +14/-0 in 1 file(s)
            URL    : https://src.fedoraproject.org/tests/selinux/c/a54b9e0d6b2e500328996e75bcd7c433aded557a?branch=pr775-checkpolicy-revdeps

            Log:
            kernel-confined-exec: add test for coredump disabled via /usr/bin/false

Systemd may disable coredumps by setting kernel.core_pattern to
"|/usr/bin/false", so this needs to work.

Signed-off-by: Ondrej Mosnacek <omosnace@redhat.com>

---
diff --git a/selinux-policy/kernel-confined-exec/runtest.sh b/selinux-policy/kernel-confined-exec/runtest.sh
index 1f59a75..2694fb1 100755
--- a/selinux-policy/kernel-confined-exec/runtest.sh
+++ b/selinux-policy/kernel-confined-exec/runtest.sh
@@ -126,6 +126,20 @@ rlJournalStart
             "Reset kernel.core_pattern to default"
     rlPhaseEnd
 
+    rlPhaseStartTest "Core pattern set to |/usr/bin/false"
+        rlLog "Should work with no AVCs"
+
+        rlRun "sysctl kernel.core_pattern='|/usr/bin/false'" 0 \
+            "Set kernel.core_pattern to |/usr/bin/false"
+        rlSESetTimestamp
+        sleep 1
+        rlRun "./trigger_segfault" 139
+        sleep 2
+        rlSECheckAVC
+        rlRun "sysctl kernel.core_pattern=\"\$original_core_pattern\"" 0 \
+            "Reset kernel.core_pattern to default"
+    rlPhaseEnd
+
     rlPhaseStartCleanup
         rlRun "rm -f trigger_segfault"
     rlPhaseEnd