[merged mm-nonmm-stable] lower-the-ptrace-permissions-so-that-the-memfd_secrect-test-program-runs-without-an-issue.patch removed from -mm tree

[merged mm-nonmm-stable] lower-the-ptrace-permissions-so-that-the-memfd_secrect-test-program-runs-without-an-issue.patch removed from -mm tree

[Andrew Morton]

The quilt patch titled
     Subject: tools/testing/selftests/mm/run_vmtests.sh: lower the ptrace permissions
has been removed from the -mm tree.  Its filename was
     lower-the-ptrace-permissions-so-that-the-memfd_secrect-test-program-runs-without-an-issue.patch

This patch was dropped because it was merged into the mm-nonmm-stable branch
of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

------------------------------------------------------
From: Itaru Kitayama <itaru.kitayama@linux.dev>
Subject: tools/testing/selftests/mm/run_vmtests.sh: lower the ptrace permissions
Date: Mon, 30 Oct 2023 17:54:45 +0900

On Ubuntu and probably other distros, ptrace permissions are tightend a
bit by default; i.e., /proc/sys/kernel/yama/ptrace_score is set to 1. 
This cases memfd_secret's ptrace attach test fails with a permission
error.  Set it to 0 piror to running the program.  

Link: https://lkml.kernel.org/r/20231030-selftest-v1-1-743df68bb996@linux.dev
Signed-off-by: Itaru Kitayama <itaru.kitayama@linux.dev>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 tools/testing/selftests/mm/run_vmtests.sh |    1 +
 1 file changed, 1 insertion(+)

--- a/tools/testing/selftests/mm/run_vmtests.sh~lower-the-ptrace-permissions-so-that-the-memfd_secrect-test-program-runs-without-an-issue
+++ a/tools/testing/selftests/mm/run_vmtests.sh
@@ -303,6 +303,7 @@ CATEGORY="hmm" run_test bash ./test_hmm.
 # MADV_POPULATE_READ and MADV_POPULATE_WRITE tests
 CATEGORY="madv_populate" run_test ./madv_populate
 
+echo 0 | sudo tee /proc/sys/kernel/yama/ptrace_scope
 CATEGORY="memfd_secret" run_test ./memfd_secret
 
 # KSM KSM_MERGE_TIME_HUGE_PAGES test with size of 100
_

Patches currently in -mm which might be from itaru.kitayama@linux.dev are