From: Kevin Brodsky Date: Mon, 9 Dec 2024 09:50:19 +0000 (+0000) Subject: selftests/mm: remove X permission from sigaltstack mapping X-Git-Tag: v6.14-rc1~77^2~211 X-Git-Url: https://git.kernel.dk/?a=commitdiff_plain;h=08cc4c398ed2e4ba6119990eccd952ec3de1e241;p=linux-2.6-block.git selftests/mm: remove X permission from sigaltstack mapping There is no reason why the alternate signal stack should be mapped as RWX. Map it as RW instead. Link: https://lkml.kernel.org/r/20241209095019.1732120-15-kevin.brodsky@arm.com Signed-off-by: Kevin Brodsky Cc: Aruna Ramakrishna Cc: Catalin Marinas Cc: Dave Hansen Cc: Joey Gouly Cc: Keith Lucas Cc: Ryan Roberts Cc: Shuah Khan Signed-off-by: Andrew Morton --- diff --git a/tools/testing/selftests/mm/pkey_sighandler_tests.c b/tools/testing/selftests/mm/pkey_sighandler_tests.c index 4f3679d11c05..1ac8c8809880 100644 --- a/tools/testing/selftests/mm/pkey_sighandler_tests.c +++ b/tools/testing/selftests/mm/pkey_sighandler_tests.c @@ -315,7 +315,7 @@ static void test_sigsegv_handler_with_different_pkey_for_stack(void) sys_mprotect_pkey(stack, STACK_SIZE, PROT_READ | PROT_WRITE, pkey); /* Set up alternate signal stack that will use the default MPK */ - sigstack.ss_sp = mmap(0, STACK_SIZE, PROT_READ | PROT_WRITE | PROT_EXEC, + sigstack.ss_sp = mmap(0, STACK_SIZE, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0); sigstack.ss_flags = 0; sigstack.ss_size = STACK_SIZE; @@ -488,7 +488,7 @@ static void test_pkru_sigreturn(void) sys_mprotect_pkey(stack, STACK_SIZE, PROT_READ | PROT_WRITE, pkey); /* Set up alternate signal stack that will use the default MPK */ - sigstack.ss_sp = mmap(0, STACK_SIZE, PROT_READ | PROT_WRITE | PROT_EXEC, + sigstack.ss_sp = mmap(0, STACK_SIZE, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0); sigstack.ss_flags = 0; sigstack.ss_size = STACK_SIZE;