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Wed, 04 Nov 2020 04:29:37 -0500 X-MC-Unique: SFfYKSFfNCypDyaQQ8tYwQ-1 Received: from smtp.corp.redhat.com (int-mx04.intmail.prod.int.phx2.redhat.com [10.5.11.14]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 465421009E2F; Wed, 4 Nov 2020 09:29:35 +0000 (UTC) Received: from oldenburg2.str.redhat.com (ovpn-113-12.ams2.redhat.com [10.36.113.12]) by smtp.corp.redhat.com (Postfix) with ESMTPS id D02D65D9CC; Wed, 4 Nov 2020 09:29:31 +0000 (UTC) From: Florian Weimer To: Will Deacon Subject: Re: [PATCH 0/4] aarch64: avoid mprotect(PROT_BTI|PROT_EXEC) [BZ #26831] References: <20201103173438.GD5545@sirena.org.uk> <20201104092012.GA6439@willie-the-truck> Date: Wed, 04 Nov 2020 10:29:29 +0100 In-Reply-To: <20201104092012.GA6439@willie-the-truck> (Will Deacon's message of "Wed, 4 Nov 2020 09:20:12 +0000") Message-ID: <87h7q54ghy.fsf@oldenburg2.str.redhat.com> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/27.1 (gnu/linux) MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.14 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20201104_042943_784529_05F280BA X-CRM114-Status: GOOD ( 13.88 ) 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: Mark Rutland , Salvatore Mesoraca , libc-alpha@sourceware.org, Kees Cook , kernel-hardening@lists.openwall.com, Szabolcs Nagy , Catalin Marinas , linux-kernel@vger.kernel.org, Jeremy Linton , Mark Brown , Lennart Poettering , linux-hardening@vger.kernel.org, Topi Miettinen , linux-arm-kernel@lists.infradead.org Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org KiBXaWxsIERlYWNvbjoKCj4gSXMgdGhlcmUgcmVhbCB2YWx1ZSBpbiB0aGlzIHNlY2NvbXAgZmls dGVyIGlmIGl0IG9ubHkgbG9va3MgYXQgbXByb3RlY3QoKSwKPiBvciB3YXMgaXQganVzdCBpbXBs ZW1lbnRlZCBiZWNhdXNlIGl0J3MgZWFzeSB0byBkbyBhbmQgc291bmRzIGxpa2UgYSBnb29kCj4g aWRlYT8KCkl0IHNlZW1zIGJvZ3VzIHRvIG1lLiAgRXZlcnlvbmUgd2lsbCBqdXN0IGNyZWF0ZSBh bGlhcyBtYXBwaW5ncyBpbnN0ZWFkLApqdXN0IGxpa2UgdGhleSBkaWQgZm9yIHRoZSBzaW1pbGFy IFNFTGludXggZmVhdHVyZS4gIFNlZSDigJxFeGFtcGxlIGNvZGUKdG8gYXZvaWQgZXhlY21lbSB2 aW9sYXRpb25z4oCdIGluOgoKICA8aHR0cHM6Ly93d3cuYWtrYWRpYS5vcmcvZHJlcHBlci9zZWxp bnV4LW1lbS5odG1sPgoKQXMgeW91IGNhbiBzZWUsIHRoaXMgcmVmZXJlbmNlIGltcGxlbWVudGF0 aW9uIGNyZWF0ZXMgYSBQUk9UX1dSSVRFCm1hcHBpbmcgYWxpYXNlZCB0byBhIFBST1RfRVhFQyBt YXBwaW5nLCBzbyBpdCBhY3R1YWxseSByZWR1Y2VzIHNlY3VyaXR5CmNvbXBhcmVkIHRvIHNvbWV0 aGluZyB0aGF0IGdlbmVyYXRlcyB0aGUgY29kZSBpbiBhbiBhbm9ueW1vdXMgbWFwcGluZwphbmQg Y2FsbHMgbXByb3RlY3QgdG8gbWFrZSBpdCBleGVjdXRhYmxlLgoKRnVydGhlcm1vcmUsIGl0IHJl cXVpcmVzIHVudXN1YWwgY2FjaGUgZmx1c2hpbmcgY29kZSBvbiBzb21lIEFBcmNoNjQKaW1wbGVt ZW50YXRpb25zIChhIHJlcXVpcmVtZW50IHRoYXQgaXMgbm90IHNoYXJlZCBieSBhbnkgTGludXgg b3RoZXIKYXJjaGl0ZWN0dXJlIHRvIHdoaWNoIGxpYmZmaSBoYXMgYmVlbiBwb3J0ZWQpLCByZXN1 bHRpbmcgaW4KaGFyZC10by10cmFjay1kb3duIHJlYWwtd29ybGQgYnVncy4KClRoYW5rcywKRmxv cmlhbgotLSAKUmVkIEhhdCBHbWJILCBodHRwczovL2RlLnJlZGhhdC5jb20vICwgUmVnaXN0ZXJl ZCBzZWF0OiBHcmFzYnJ1bm4sCkNvbW1lcmNpYWwgcmVnaXN0ZXI6IEFtdHNnZXJpY2h0IE11ZW5j aGVuLCBIUkIgMTUzMjQzLApNYW5hZ2luZyBEaXJlY3RvcnM6IENoYXJsZXMgQ2FjaGVyYSwgQnJp YW4gS2xlbW0sIExhdXJpZSBLcmVicywgTWljaGFlbCBPJ05laWxsCgoKX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KbGludXgtYXJtLWtlcm5lbCBtYWlsaW5n IGxpc3QKbGludXgtYXJtLWtlcm5lbEBsaXN0cy5pbmZyYWRlYWQub3JnCmh0dHA6Ly9saXN0cy5p bmZyYWRlYWQub3JnL21haWxtYW4vbGlzdGluZm8vbGludXgtYXJtLWtlcm5lbAo=