Message ID | 14f6190d7846186a3506cd66d82446646fe65090.1544099024.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 j10sor190302wrx.15.2018.12.06.04.25.13 for <linux-mm@kvack.org> (Google Transport Security); Thu, 06 Dec 2018 04:25:13 -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=Ujk3SHMZ; 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=fxqgizsGn0AaIQnRQ33dQkRGCaY8UuAWu0B6VsH5hUQ=; b=Ujk3SHMZqV7n0tte5Uw8nokkp/oH0FlKFLsFxzElZe9Z0slbPJEAJExlirmXwEUB/j qeFI1DE4ncGLA0+FkTusmS35oYv/U8UXI/jfcSKa3QRtSlDZ5L5lHaiWfjgmPd4nFF/+ vGwiweNbXNO50gJDPLGhzJri8t+wJQe4o/ND+9KUuI2L26oBYQ8hULSaxQMaAnF/iqDX Hpv9wpz9cBx90ytQ87K72yusvxoLQs9ZuSGL0uO4fMjRQ9fR2bvdzrwnlroIA0fQeMGW 0wXe8PTBJ4EYtsNFcnsc8WZUW2aYYzJizcPd8EFhPQh0QD0nyqeteBzhl8XYpy7aMdWS egGA== X-Google-Smtp-Source: AFSGD/X/KL+bObt1e53j+RE7+vhNT1qCIPw5uSMB1tFkwSYT/Sx24y8tmABr3/CaYm5nM5Ne2TIj5Q== X-Received: by 2002:adf:b783:: with SMTP id s3mr26257791wre.274.1544099113048; Thu, 06 Dec 2018 04:25:13 -0800 (PST) Received: from andreyknvl0.muc.corp.google.com ([2a00:79e0:15:10:3180:41f8:3010:ff61]) by smtp.gmail.com with ESMTPSA id j8sm339988wrt.40.2018.12.06.04.25.11 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 06 Dec 2018 04:25:12 -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 v13 15/25] kasan, mm: perform untagged pointers comparison in krealloc Date: Thu, 6 Dec 2018 13:24:33 +0100 Message-Id: <14f6190d7846186a3506cd66d82446646fe65090.1544099024.git.andreyknvl@google.com> X-Mailer: git-send-email 2.20.0.rc1.387.gf8505762e3-goog In-Reply-To: <cover.1544099024.git.andreyknvl@google.com> References: <cover.1544099024.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;