linux-kernel - [PATCH] mm: kasan: Fix input of vmalloc_to

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Message-ID: <20220525120804.38155-1-wangkefeng.wang@huawei.com>
Date:   Wed, 25 May 2022 20:08:04 +0800
From:   Kefeng Wang <wangkefeng.wang@...wei.com>
To:     Andrey Ryabinin <ryabinin.a.a@...il.com>,
        Alexander Potapenko <glider@...gle.com>,
        Andrey Konovalov <andreyknvl@...il.com>,
        Dmitry Vyukov <dvyukov@...gle.com>,
        Vincenzo Frascino <vincenzo.frascino@....com>,
        <kasan-dev@...glegroups.com>, <linux-mm@...ck.org>,
        <linux-kernel@...r.kernel.org>
CC:     Andrew Morton <akpm@...ux-foundation.org>,
        Kefeng Wang <wangkefeng.wang@...wei.com>
Subject: [PATCH] mm: kasan: Fix input of vmalloc_to_page()

When print virtual mapping info for vmalloc address, it should pass
the addr not page, fix it.

Fixes: c056a364e954 ("kasan: print virtual mapping info in reports")
Signed-off-by: Kefeng Wang <wangkefeng.wang@...wei.com>
---
 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 199d77cce21a..b341a191651d 100644
--- a/mm/kasan/report.c
+++ b/mm/kasan/report.c
@@ -347,7 +347,7 @@ static void print_address_description(void *addr, u8 tag)
 			       va->addr, va->addr + va->size, va->caller);
 			pr_err("\n");
 
-			page = vmalloc_to_page(page);
+			page = vmalloc_to_page(addr);
 		}
 	}
 
-- 
2.35.3