[PATCH] selftests/mm: Fix mseal's length
From: Pedro Falcato
Date: Wed Aug 21 2024 - 19:20:19 EST
We accidentally msealed too much, which could overrun and try to mseal
other regions. This seems to be harmless (at least on top-down
architectures) due to various reasons all aligning, but may very well
cause spurious test failures to e.g bottom-up mmap architectures.
Signed-off-by: Pedro Falcato <pedro.falcato@xxxxxxxxx>
---
tools/testing/selftests/mm/mseal_test.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/tools/testing/selftests/mm/mseal_test.c b/tools/testing/selftests/mm/mseal_test.c
index 0d4d40fb0f88..0c41513219ae 100644
--- a/tools/testing/selftests/mm/mseal_test.c
+++ b/tools/testing/selftests/mm/mseal_test.c
@@ -783,7 +783,7 @@ static void test_seal_mprotect_partial_mprotect_tail(bool seal)
FAIL_TEST_IF_FALSE(ptr != (void *)-1);
if (seal) {
- ret = sys_mseal(ptr + page_size, size);
+ ret = sys_mseal(ptr + page_size, page_size);
FAIL_TEST_IF_FALSE(!ret);
}
@@ -1036,7 +1036,7 @@ static void test_seal_munmap_partial_across_vmas(bool seal)
FAIL_TEST_IF_FALSE(ptr != (void *)-1);
if (seal) {
- ret = sys_mseal(ptr + page_size, size);
+ ret = sys_mseal(ptr + page_size, page_size);
FAIL_TEST_IF_FALSE(!ret);
}
--
2.46.0