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authorAndrey Konovalov <andreyknvl@google.com>2021-03-15 16:20:19 +0300
committerCatalin Marinas <catalin.marinas@arm.com>2021-04-11 12:57:45 +0300
commite80a76aa1a91018d919d2210366943f9bf17009e (patch)
tree1062ce71ffb0e6a77729fbc3dd1daecadaa01054 /mm/kasan/report.c
parenteab0e6e17d876381b4d47996eef3b5fd46ea4011 (diff)
downloadlinux-e80a76aa1a91018d919d2210366943f9bf17009e.tar.xz
kasan, arm64: tests supports for HW_TAGS async mode
This change adds KASAN-KUnit tests support for the async HW_TAGS mode. In async mode, tag fault aren't being generated synchronously when a bad access happens, but are instead explicitly checked for by the kernel. As each KASAN-KUnit test expect a fault to happen before the test is over, check for faults as a part of the test handler. Acked-by: Catalin Marinas <catalin.marinas@arm.com> Acked-by: Andrey Konovalov <andreyknvl@google.com> Tested-by: Andrey Konovalov <andreyknvl@google.com> Signed-off-by: Andrey Konovalov <andreyknvl@google.com> Signed-off-by: Vincenzo Frascino <vincenzo.frascino@arm.com> Link: https://lore.kernel.org/r/20210315132019.33202-10-vincenzo.frascino@arm.com Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Diffstat (limited to 'mm/kasan/report.c')
-rw-r--r--mm/kasan/report.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/mm/kasan/report.c b/mm/kasan/report.c
index 8b0843a2cdd7..14bd51ea2348 100644
--- a/mm/kasan/report.c
+++ b/mm/kasan/report.c
@@ -366,6 +366,11 @@ void kasan_report_async(void)
{
unsigned long flags;
+#if IS_ENABLED(CONFIG_KUNIT)
+ if (current->kunit_test)
+ kasan_update_kunit_status(current->kunit_test);
+#endif /* IS_ENABLED(CONFIG_KUNIT) */
+
start_report(&flags);
pr_err("BUG: KASAN: invalid-access\n");
pr_err("Asynchronous mode enabled: no access details available\n");