selftests/x86: Add a missing .note.GNU-stack section to thunks_32.S

BugLink: https://bugs.launchpad.net/bugs/1929455
[ Upstream commit f706bb59204ba1c47e896b456c97977fc97b7964 ]

test_syscall_vdso_32 ended up with an executable stacks because the asm
was missing the annotation that says that it is modern and doesn't need
an executable stack. Add the annotation.

This was missed in commit aeaaf005da1d ("selftests/x86: Add missing
.note.GNU-stack sections").

Fixes: aeaaf005da1d ("selftests/x86: Add missing .note.GNU-stack sections")
Signed-off-by: Andy Lutomirski <luto@kernel.org>
Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lkml.kernel.org/r/487ed5348a43c031b816fa7e9efedb75dc324299.1614877299.git.luto@kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Kelsey Skunberg <kelsey.skunberg@canonical.com>

diff --git a/tools/testing/selftests/x86/thunks_32.S b/tools/testing/selftests/x86/thunks_32.S
index a71d92da8f46684eefb9ac43550a183ea19460f9..f3f56e681e9fbeaddeda911873c7cfba40363c9b 100644 (file)
--- a/tools/testing/selftests/x86/thunks_32.S
+++ b/tools/testing/selftests/x86/thunks_32.S
@@ -45,3 +45,5 @@ call64_from_32:
        ret
 
 .size call64_from_32, .-call64_from_32
+
+.section .note.GNU-stack,"",%progbits