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[61.230.37.4]) by smtp.gmail.com with ESMTPSA id 73sm45465993pga.26.2021.01.02.22.39.17 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 02 Jan 2021 22:39:19 -0800 (PST) From: Lecopzer Chen To: linux-kernel@vger.kernel.org, linux-mm@kvack.org, kasan-dev@googlegroups.com Cc: dan.j.williams@intel.com, aryabinin@virtuozzo.com, glider@google.com, dvyukov@google.com, akpm@linux-foundation.org, linux-mediatek@lists.infradead.org, yj.chiang@mediatek.com, Lecopzer Chen , Lecopzer Chen Subject: [PATCH] kasan: fix incorrect arguments passing in kasan_add_zero_shadow Date: Sun, 3 Jan 2021 14:38:47 +0800 Message-Id: <20210103063847.5963-1-lecopzer@gmail.com> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000009, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: kasan_remove_zero_shadow() shall use original virtual address, start and size, instead of shadow address. Fixes: 0207df4fa1a86 ("kernel/memremap, kasan: make ZONE_DEVICE with work with KASAN") Signed-off-by: Lecopzer Chen Reviewed-by: Andrey Konovalov --- mm/kasan/init.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/mm/kasan/init.c b/mm/kasan/init.c index bc0ad208b3a7..67051cfae41c 100644 --- a/mm/kasan/init.c +++ b/mm/kasan/init.c @@ -481,7 +481,6 @@ int kasan_add_zero_shadow(void *start, unsigned long size) ret = kasan_populate_early_shadow(shadow_start, shadow_end); if (ret) - kasan_remove_zero_shadow(shadow_start, - size >> KASAN_SHADOW_SCALE_SHIFT); + kasan_remove_zero_shadow(start, size); return ret; }