Thread (15 messages) 15 messages, 4 authors, 2021-10-03

Re: [PATCH v4 07/11] mm: kasan: Use is_kernel() helper

From: Andrey Konovalov <andreyknvl@gmail.com>
Date: 2021-10-03 17:19:27
Also in: bpf, linux-alpha, linuxppc-dev, lkml

On Thu, Sep 30, 2021 at 9:09 AM Kefeng Wang [off-list ref] wrote:
quoted hunk ↗ jump to hunk
Directly use is_kernel() helper in kernel_or_module_addr().

Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Andrey Konovalov <andreyknvl@gmail.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Signed-off-by: Kefeng Wang <redacted>
---
 mm/kasan/report.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/mm/kasan/report.c b/mm/kasan/report.c
index 3239fd8f8747..1c955e1c98d5 100644
--- a/mm/kasan/report.c
+++ b/mm/kasan/report.c
@@ -226,7 +226,7 @@ static void describe_object(struct kmem_cache *cache, void *object,

 static inline bool kernel_or_module_addr(const void *addr)
 {
-       if (addr >= (void *)_stext && addr < (void *)_end)
+       if (is_kernel((unsigned long)addr))
                return true;
        if (is_module_address((unsigned long)addr))
                return true;
--
2.26.2
Reviewed-by: Andrey Konovalov <andreyknvl@gmail.com>
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