Message ID | bd2e180afd1cc5ebc0aebc0cbbfe5cca16ba35c3.1542648335.git.andreyknvl@google.com (mailing list archive) |
---|---|
State | New, archived |
Headers | show
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[209.85.220.65]) by mx.google.com with SMTPS id g18sor1811229wrw.3.2018.11.19.09.27.19 for <linux-mm@kvack.org> (Google Transport Security); Mon, 19 Nov 2018 09:27:19 -0800 (PST) Received-SPF: pass (google.com: domain of andreyknvl@google.com designates 209.85.220.65 as permitted sender) client-ip=209.85.220.65; Authentication-Results: mx.google.com; dkim=pass header.i=@google.com header.s=20161025 header.b=pxIEoLBV; spf=pass (google.com: domain of andreyknvl@google.com designates 209.85.220.65 as permitted sender) smtp.mailfrom=andreyknvl@google.com; dmarc=pass (p=REJECT sp=REJECT dis=NONE) header.from=google.com DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=f7KSm+jFXQkCQXEc5rnrCA4r7eJPDm1tJhN4hvjkMsI=; b=pxIEoLBVS/155thk/jlirYN+v21XOcVr2GW9d9IBt1OVBarBjRyqIHbmLLhe8psyyq 5Ug5UTJ5X7VrMdCeKBD9K2dkVd+nc0AzF32lJLmucUFRU/GgpdqaUcMhykaBbosPF6dk KIu1FcKLwylt2oS/TycDYqUiERABjULH2Gwy1yv1Mw7ZhgGAthWgeAmCkVzYSlPWpzD8 5Aa+fhgB4AEe7eG4R0/QPBHYc+/htnw7UG7ePdKyWf6uffMpCJytw1h3Wnkeg1RRvRGs 9OTHbUPdKOxvcS/eCi6mPSgOtTdigpIKY3SU9AHkvrAMtJbrq82+to13FudtfZ995L4C EmVw== X-Google-Smtp-Source: AFSGD/XZpgLAg7rezu/mjkHy6lW0RJIb0uV/wXKhtOG3pV2Pb/tXon7urXALPBJFf4VkMPoh4EQ6nA== X-Received: by 2002:a5d:63c3:: with SMTP id c3mr2727742wrw.215.1542648439441; Mon, 19 Nov 2018 09:27:19 -0800 (PST) Received: from andreyknvl0.muc.corp.google.com ([2a00:79e0:15:10:3180:41f8:3010:ff61]) by smtp.gmail.com with ESMTPSA id l143-v6sm23685190wmb.23.2018.11.19.09.27.17 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 19 Nov 2018 09:27:18 -0800 (PST) From: Andrey Konovalov <andreyknvl@google.com> To: Andrey Ryabinin <aryabinin@virtuozzo.com>, Alexander Potapenko <glider@google.com>, Dmitry Vyukov <dvyukov@google.com>, Catalin Marinas <catalin.marinas@arm.com>, Will Deacon <will.deacon@arm.com>, Christoph Lameter <cl@linux.com>, Andrew Morton <akpm@linux-foundation.org>, Mark Rutland <mark.rutland@arm.com>, Nick Desaulniers <ndesaulniers@google.com>, Marc Zyngier <marc.zyngier@arm.com>, Dave Martin <dave.martin@arm.com>, Ard Biesheuvel <ard.biesheuvel@linaro.org>, "Eric W . Biederman" <ebiederm@xmission.com>, Ingo Molnar <mingo@kernel.org>, Paul Lawrence <paullawrence@google.com>, Geert Uytterhoeven <geert@linux-m68k.org>, Arnd Bergmann <arnd@arndb.de>, "Kirill A . Shutemov" <kirill.shutemov@linux.intel.com>, Greg Kroah-Hartman <gregkh@linuxfoundation.org>, Kate Stewart <kstewart@linuxfoundation.org>, Mike Rapoport <rppt@linux.vnet.ibm.com>, kasan-dev@googlegroups.com, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-sparse@vger.kernel.org, linux-mm@kvack.org, linux-kbuild@vger.kernel.org Cc: Kostya Serebryany <kcc@google.com>, Evgeniy Stepanov <eugenis@google.com>, Lee Smith <Lee.Smith@arm.com>, Ramana Radhakrishnan <Ramana.Radhakrishnan@arm.com>, Jacob Bramley <Jacob.Bramley@arm.com>, Ruben Ayrapetyan <Ruben.Ayrapetyan@arm.com>, Jann Horn <jannh@google.com>, Mark Brand <markbrand@google.com>, Chintan Pandya <cpandya@codeaurora.org>, Vishwath Mohan <vishwath@google.com>, Andrey Konovalov <andreyknvl@google.com> Subject: [PATCH v11 15/24] kasan, mm: perform untagged pointers comparison in krealloc Date: Mon, 19 Nov 2018 18:26:31 +0100 Message-Id: <bd2e180afd1cc5ebc0aebc0cbbfe5cca16ba35c3.1542648335.git.andreyknvl@google.com> X-Mailer: git-send-email 2.19.1.1215.g8438c0b245-goog In-Reply-To: <cover.1542648335.git.andreyknvl@google.com> References: <cover.1542648335.git.andreyknvl@google.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: <linux-mm.kvack.org> X-Virus-Scanned: ClamAV using ClamSMTP |
Series |
kasan: add software tag-based mode for arm64
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diff --git a/mm/slab_common.c b/mm/slab_common.c index 5f3504e26d4c..5aabcbd32d82 100644 --- a/mm/slab_common.c +++ b/mm/slab_common.c @@ -1534,7 +1534,7 @@ void *krealloc(const void *p, size_t new_size, gfp_t flags) } ret = __do_krealloc(p, new_size, flags); - if (ret && p != ret) + if (ret && kasan_reset_tag(p) != kasan_reset_tag(ret)) kfree(p); return ret;