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[198.145.64.163]) by smtp.gmail.com with ESMTPSA id j17sm14695804pfa.16.2020.02.24.21.13.13 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 24 Feb 2020 21:13:15 -0800 (PST) From: Kees Cook To: Borislav Petkov Subject: [PATCH v4 6/6] arm64, elf: Disable automatic READ_IMPLIES_EXEC for 64-bit address spaces Date: Mon, 24 Feb 2020 21:13:07 -0800 Message-Id: <20200225051307.6401-7-keescook@chromium.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20200225051307.6401-1-keescook@chromium.org> References: <20200225051307.6401-1-keescook@chromium.org> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200224_211316_728364_85E1EE5C X-CRM114-Status: GOOD ( 11.81 ) 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: Kees Cook , Jann Horn , Catalin Marinas , x86@kernel.org, Hector Marco-Gisbert , Russell King , linux-kernel@vger.kernel.org, Jason Gunthorpe , Jason Gunthorpe , kernel-hardening@lists.openwall.com, Will Deacon , 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+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org V2l0aCBhcm02NCA2NC1iaXQgZW52aXJvbm1lbnRzLCB0aGVyZSBzaG91bGQgbmV2ZXIgYmUgYSBu ZWVkIGZvciBhdXRvbWF0aWMKUkVBRF9JTVBMSUVTX0VYRUMsIGFzIHRoZSBhcmNoaXRlY3R1cmUg aGFzIGFsd2F5cyBiZWVuIGV4ZWN1dGUtYml0IGF3YXJlCihhcyBpbiwgdGhlIGRlZmF1bHQgbWVt b3J5IHByb3RlY3Rpb24gc2hvdWxkIGJlIE5YIHVubGVzcyBhIHJlZ2lvbgpleHBsaWNpdGx5IHJl cXVlc3RzIHRvIGJlIGV4ZWN1dGFibGUpLgoKU3VnZ2VzdGVkLWJ5OiBIZWN0b3IgTWFyY28tR2lz YmVydCA8aGVjbWFyZ2lAdXB2LmVzPgpTaWduZWQtb2ZmLWJ5OiBLZWVzIENvb2sgPGtlZXNjb29r QGNocm9taXVtLm9yZz4KUmV2aWV3ZWQtYnk6IEphc29uIEd1bnRob3JwZSA8amdnQG1lbGxhbm94 LmNvbT4KUmV2aWV3ZWQtYnk6IENhdGFsaW4gTWFyaW5hcyA8Y2F0YWxpbi5tYXJpbmFzQGFybS5j b20+Ci0tLQogYXJjaC9hcm02NC9pbmNsdWRlL2FzbS9lbGYuaCB8IDQgKystLQogZnMvY29tcGF0 X2JpbmZtdF9lbGYuYyAgICAgICB8IDUgKysrKysKIDIgZmlsZXMgY2hhbmdlZCwgNyBpbnNlcnRp b25zKCspLCAyIGRlbGV0aW9ucygtKQoKZGlmZiAtLWdpdCBhL2FyY2gvYXJtNjQvaW5jbHVkZS9h c20vZWxmLmggYi9hcmNoL2FybTY0L2luY2x1ZGUvYXNtL2VsZi5oCmluZGV4IDAzYWRhMjk5ODRh Ny4uZWE5MjIxZWQ2OGExIDEwMDY0NAotLS0gYS9hcmNoL2FybTY0L2luY2x1ZGUvYXNtL2VsZi5o CisrKyBiL2FyY2gvYXJtNjQvaW5jbHVkZS9hc20vZWxmLmgKQEAgLTEwNSw3ICsxMDUsNyBAQAog ICogwqAgwqAgwqAgwqAgwqAgwqDCoENQVSo6IHwgYXJtMzLCoCDCoCAgIHwgYXJtNjQgICAgICB8 CiAgKiBFTEY6IMKgIMKgIMKgIMKgIMKgIMKgIMKgfCDCoCDCoCDCoCDCoCDCoCDCoHwgwqAgwqAg wqAgwqAgwqAgwqB8CiAgKiAtLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tfC0tLS0tLS0t LS0tLXwKLSAqIG1pc3NpbmcgR05VX1NUQUNLIHwgZXhlYy1hbGwgwqAgfCBleGVjLWFsbCDCoCB8 CisgKiBtaXNzaW5nIEdOVV9TVEFDSyB8IGV4ZWMtYWxsIMKgIHwgZXhlYy1ub25lwqAgfAogICog R05VX1NUQUNLID09IFJXWCDCoHwgZXhlYy1zdGFjayB8IGV4ZWMtc3RhY2sgfAogICogR05VX1NU QUNLID09IFJXIMKgIHwgZXhlYy1ub25lICB8IGV4ZWMtbm9uZSAgfAogICoKQEAgLTExNyw3ICsx MTcsNyBAQAogICogICphbGwgYXJtNjQgQ1BVcyBzdXBwb3J0IE5YLCBzbyB0aGVyZSBpcyBubyAi bGFja3MgTlgiIGNvbHVtbi4KICAqCiAgKi8KLSNkZWZpbmUgZWxmX3JlYWRfaW1wbGllc19leGVj KGV4LHN0aykJKHN0ayA9PSBFWFNUQUNLX0RFRkFVTFQpCisjZGVmaW5lIGNvbXBhdF9lbGZfcmVh ZF9pbXBsaWVzX2V4ZWMoZXgsIHN0aykJKHN0ayA9PSBFWFNUQUNLX0RFRkFVTFQpCiAKICNkZWZp bmUgQ09SRV9EVU1QX1VTRV9SRUdTRVQKICNkZWZpbmUgRUxGX0VYRUNfUEFHRVNJWkUJUEFHRV9T SVpFCmRpZmYgLS1naXQgYS9mcy9jb21wYXRfYmluZm10X2VsZi5jIGIvZnMvY29tcGF0X2JpbmZt dF9lbGYuYwppbmRleCBhYWFkNGNhMTIxN2UuLjMwNjhkNTc0MzZiMyAxMDA2NDQKLS0tIGEvZnMv Y29tcGF0X2JpbmZtdF9lbGYuYworKysgYi9mcy9jb21wYXRfYmluZm10X2VsZi5jCkBAIC0xMTMs NiArMTEzLDExIEBACiAjZGVmaW5lCWFyY2hfc2V0dXBfYWRkaXRpb25hbF9wYWdlcyBjb21wYXRf YXJjaF9zZXR1cF9hZGRpdGlvbmFsX3BhZ2VzCiAjZW5kaWYKIAorI2lmZGVmCWNvbXBhdF9lbGZf cmVhZF9pbXBsaWVzX2V4ZWMKKyN1bmRlZgllbGZfcmVhZF9pbXBsaWVzX2V4ZWMKKyNkZWZpbmUJ ZWxmX3JlYWRfaW1wbGllc19leGVjIGNvbXBhdF9lbGZfcmVhZF9pbXBsaWVzX2V4ZWMKKyNlbmRp ZgorCiAvKgogICogUmVuYW1lIGEgZmV3IG9mIHRoZSBzeW1ib2xzIHRoYXQgYmluZm10X2VsZi5j IHdpbGwgZGVmaW5lLgogICogVGhlc2UgYXJlIGFsbCBsb2NhbCBzbyB0aGUgbmFtZXMgZG9uJ3Qg cmVhbGx5IG1hdHRlciwgYnV0IGl0Ci0tIAoyLjIwLjEKCgpfX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fXwpsaW51eC1hcm0ta2VybmVsIG1haWxpbmcgbGlzdAps aW51eC1hcm0ta2VybmVsQGxpc3RzLmluZnJhZGVhZC5vcmcKaHR0cDovL2xpc3RzLmluZnJhZGVh ZC5vcmcvbWFpbG1hbi9saXN0aW5mby9saW51eC1hcm0ta2VybmVsCg==