From: Tianyi Chen <[email protected]> Date: Tue, 08 Sep 2026 11:21:50 +0800
The memfd_secret setup clears ptrace_scope whenever its test binary is executable, even when a different category was selected. run_test() filters the test invocation, but it does not protect the preceding setup. Check the category selection before entering the memfd_secret block so running unrelated categories does not change ptrace_scope. Keep the existing executable check and the behavior when memfd_secret is selected. Acked-by: David Hildenbrand (Arm) <[email protected]> Assisted-by: LLM Signed-off-by: Tianyi Chen <[email protected]> --- tools/testing/selftests/mm/run_vmtests.sh | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/testing/selftests/mm/run_vmtests.sh b/tools/testing/selftests/mm/run_vmtests.sh index 9e62ab4c6775..9bbef9410ccc 100755 --- a/tools/testing/selftests/mm/run_vmtests.sh +++ b/tools/testing/selftests/mm/run_vmtests.sh @@ -370,7 +370,7 @@ CATEGORY="process_madv" run_test ./process_madv CATEGORY="vma_merge" run_test ./merge -if [ -x ./memfd_secret ] +if test_selected "memfd_secret" && [ -x ./memfd_secret ] then if [ -f /proc/sys/kernel/yama/ptrace_scope ]; then (echo 0 > /proc/sys/kernel/yama/ptrace_scope 2>&1) | tap_prefix
