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a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=jjl4waKkIn07fAHZxpQYfL1cJey++l2ULCvo+NpmtTI=; b=P5iaWfVp3A4DQFLh8WPbI8W0WihX+brbNd55NCeLIzxOG6dLWoTVMzcWo1bbuaNnqF 9pgZRhq8xQoiyQPtzk5Ud6IlPkLBZBWLkUTsn4/gEyJDvw0KvU+AiwytTkJ9NQT6elGK ZUE76L5bu8ycPhF0Df5IOKC0EBeHwKwEYf5lW/wl2DL5LaRmqqlF9Fvy9x/X6uAzMXZr 8jAnBR17I6glfJUZX37C8YKFFTYJsoym5amU1/P5w7OoSg3LMW4WUxC1/+bSFAJchSqe gj57Il3XmWlhxzhNGV80OsQqIl/plCjlv0VM9iQNykcen3To6wB8qSSKBLxwsTLF/kah BFhg== X-Gm-Message-State: AOAM5325Dvopgx+RSoxUutISAJRIDzGJPt30fNsF0qS9Kwyhdq6qSUOJ sPXJI2BfdPab8lkg7QkiZT1pNNxaqLdxHH8xK+I1EA== X-Google-Smtp-Source: ABdhPJzccfdlAK+SRaf7zIcMIaXsyDc7g+LulQbCIaLDti9pJSokw7/xfAWa5vfRRrUMlssMAS3ed5P4pPE1EvYM4fA= X-Received: by 2002:a2e:9f13:: with SMTP id u19mr119925ljk.160.1602714609293; Wed, 14 Oct 2020 15:30:09 -0700 (PDT) MIME-Version: 1.0 References: <20201007073932.865218-1-jannh@google.com> <20201010110949.GA32545@gaia> <20201012172218.GE6493@gaia> <20c85633-b559-c299-3e57-ae136b201526@oracle.com> <20201013091638.GA10778@gaia> In-Reply-To: From: Jann Horn Date: Thu, 15 Oct 2020 00:29:42 +0200 Message-ID: Subject: Re: [PATCH 1/2] mm/mprotect: Call arch_validate_prot under mmap_lock and with length To: Khalid Aziz X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20201014_183013_447002_B3420D7F X-CRM114-Status: GOOD ( 12.35 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Benjamin Herrenschmidt , Catalin Marinas , linuxppc-dev@lists.ozlabs.org, kernel list , Christoph Hellwig , Linux-MM , Paul Mackerras , Michael Ellerman , sparclinux@vger.kernel.org, Anthony Yznaga , Andrew Morton , Will Deacon , "David S. Miller" , Linux ARM Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Wed, Oct 14, 2020 at 11:24 PM Khalid Aziz wrote: [...] > current code? What FreeBSD does seems like a reasonable thing to do. Any > way first thing to do is to update sparc to use arch_validate_flags() > and update sparc_validate_prot() to not peek into vma without lock. I > can do that unless Jann wants to rework this 2 patch series with these > changes. Ah, if you're willing to take care of that, that'd be nice, please do. :) _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel