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[198.145.64.163]) by smtp.gmail.com with ESMTPSA id c8-20020aa78808000000b0050dc7628172sm200051pfo.76.2022.04.29.15.53.13 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 29 Apr 2022 15:53:13 -0700 (PDT) Date: Fri, 29 Apr 2022 15:53:12 -0700 From: Kees Cook To: Peter Zijlstra , Mark Rutland , Josh Poimboeuf , Will Deacon , Catalin Marinas Cc: Sami Tolvanen , Nathan Chancellor , Nick Desaulniers , Joao Moreira , Sedat Dilek , Steven Rostedt , linux-kernel@vger.kernel.org, x86@kernel.org, linux-hardening@vger.kernel.org, linux-arm-kernel@lists.infradead.org, llvm@lists.linux.dev Subject: Re: [RFC PATCH 00/21] KCFI support Message-ID: <202204291545.47C6A97EA2@keescook> References: <20220429203644.2868448-1-samitolvanen@google.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20220429203644.2868448-1-samitolvanen@google.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220429_155316_370876_411886F2 X-CRM114-Status: GOOD ( 15.72 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , 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 T24gRnJpLCBBcHIgMjksIDIwMjIgYXQgMDE6MzY6MjNQTSAtMDcwMCwgU2FtaSBUb2x2YW5lbiB3 cm90ZToKPiBLQ0ZJIGlzIGEgcHJvcG9zZWQgZm9yd2FyZC1lZGdlIGNvbnRyb2wtZmxvdyBpbnRl Z3JpdHkgc2NoZW1lIGZvcgo+IENsYW5nLCB3aGljaCBpcyBtb3JlIHN1aXRhYmxlIGZvciBrZXJu ZWwgdXNlIHRoYW4gdGhlIGV4aXN0aW5nIENGSQo+IHNjaGVtZSB1c2VkIGJ5IENPTkZJR19DRklf Q0xBTkcuIEtDRkkgZG9lc24ndCByZXF1aXJlIExUTywgZG9lc24ndAo+IGFsdGVyIGZ1bmN0aW9u IHJlZmVyZW5jZXMgdG8gcG9pbnQgdG8gYSBqdW1wIHRhYmxlLCBhbmQgd29uJ3QgYnJlYWsKPiBm dW5jdGlvbiBhZGRyZXNzIGVxdWFsaXR5LgoK8J+OiSA6KQoKPiBUaGUgbGF0ZXN0IExMVk0gcGF0 Y2hlcyBhcmUgaGVyZToKPiAKPiAgIGh0dHBzOi8vcmV2aWV3cy5sbHZtLm9yZy9EMTE5Mjk2Cj4g ICBodHRwczovL3Jldmlld3MubGx2bS5vcmcvRDEyNDIxMQo+IAo+IFsuLi5dCj4gVG8gdGVzdCB0 aGlzIHNlcmllcywgeW91J2xsIG5lZWQgdG8gY29tcGlsZSB5b3VyIG93biBDbGFuZyB0b29sY2hh aW4KPiB3aXRoIHRoZSBwYXRjaGVzIGxpbmtlZCBhYm92ZS4gWW91IGNhbiBhbHNvIGZpbmQgdGhl IGNvbXBsZXRlIHNvdXJjZQo+IHRyZWUgaGVyZToKPiAKPiAgIGh0dHBzOi8vZ2l0aHViLmNvbS9z YW1pdG9sdmFuZW4vbGx2bS1wcm9qZWN0L2NvbW1pdHMva2NmaS1yZmMKCkFuZCBub3RlIHRoYXQg dGhpcyBSRkMgaXMgc2Vla2luZyB0byBicmVhayBhIGJpdCBvZiBhIGNpcmN1bGFyIGRlcGVuZGVu Y3kKd2l0aCByZWdhcmQgdG8gdGhlIGRlc2lnbiBvZiBfX2J1aWx0aW5fa2NmaV9jYWxsX3VuY2hl Y2tlZCAoRDEyNDIxMQphYm92ZSksIGFzIHRoZSBpbXBsZW1lbnRhdGlvbiBoYXMgZ29uZSBhcm91 bmQgYSBmZXcgdGltZXMgaW4gcmV2aWV3IHdpdGhpbgpMTFZNLCBhbmQgd2Ugd2FudCB0byBtYWtl IHN1cmUgdGhhdCBrZXJuZWwgZm9sa3MgYXJlIG9rYXkgd2l0aCB3aGF0IHdhcwpzZXR0bGVkIG9u LiBJZiB0aGVyZSBhcmUgbm8gb2JqZWN0aW9ucyBvbiB0aGUga2VybmVsIHNpZGUsIHRoZW4gd2Ug Y2FuCmxhbmQgdGhlIEtDRkkgcGF0Y2hlcywgYXMgdGhpcyBpcyBiYXNpY2FsbHkgdGhlIG9ubHkg cmVtYWluaW5nIGJsb2NrZXIuCgotS2VlcwoKLS0gCktlZXMgQ29vawoKX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KbGludXgtYXJtLWtlcm5lbCBtYWlsaW5n IGxpc3QKbGludXgtYXJtLWtlcm5lbEBsaXN0cy5pbmZyYWRlYWQub3JnCmh0dHA6Ly9saXN0cy5p bmZyYWRlYWQub3JnL21haWxtYW4vbGlzdGluZm8vbGludXgtYXJtLWtlcm5lbAo=