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[198.145.64.163]) by smtp.gmail.com with ESMTPSA id v204sm4236125pfc.10.2020.09.18.15.00.48 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 18 Sep 2020 15:00:48 -0700 (PDT) Date: Fri, 18 Sep 2020 15:00:48 -0700 From: Kees Cook To: Christian Brauner Subject: Re: [PATCH 14/15] selftests/clone3: Avoid OS-defined clone_args Message-ID: <202009181500.9A560349@keescook> References: <20200912110820.597135-1-keescook@chromium.org> <20200912110820.597135-15-keescook@chromium.org> <20200915162528.x7admy45pdqsoke4@wittgenstein> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20200915162528.x7admy45pdqsoke4@wittgenstein> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200918_180052_868831_5FBA1047 X-CRM114-Status: GOOD ( 17.10 ) 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: Thadeu Lima de Souza Cascardo , Will Drewry , linux-xtensa@linux-xtensa.org, Michael Ellerman , linux-kernel@vger.kernel.org, Andy Lutomirski , Max Filippov , linux-arm-kernel@lists.infradead.org, linux-kselftest@vger.kernel.org, linux-mips@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, Christian Brauner 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 T24gVHVlLCBTZXAgMTUsIDIwMjAgYXQgMDY6MjU6MjhQTSArMDIwMCwgQ2hyaXN0aWFuIEJyYXVu ZXIgd3JvdGU6Cj4gT24gU2F0LCBTZXAgMTIsIDIwMjAgYXQgMDQ6MDg6MTlBTSAtMDcwMCwgS2Vl cyBDb29rIHdyb3RlOgo+ID4gQXMgdGhlIFVBUEkgaGVhZGVycyBzdGFydCB0byBhcHBlYXIgaW4g ZGlzdHJvcywgd2UgbmVlZCB0byBhdm9pZAo+ID4gb3V0ZGF0ZWQgdmVyc2lvbnMgb2Ygc3RydWN0 IGNsb25lX2FyZ3MgdG8gYmUgYWJsZSB0byB0ZXN0IG1vZGVybgo+ID4gZmVhdHVyZXMuIEFkZGl0 aW9uYWxseSBwdWxsIGluIHRoZSBzeXNjYWxsIG51bWJlcnMgY29ycmVjdGx5Lgo+ID4gCj4gPiBT aWduZWQtb2ZmLWJ5OiBLZWVzIENvb2sgPGtlZXNjb29rQGNocm9taXVtLm9yZz4KPiA+IC0tLQo+ IAo+IEhtLCB3aXRoIHRoaXMgcGF0Y2ggYXBwbGllZCBJJ20gZ2V0dGluZzoKPiAKPiBnY2MgLWcg LUkuLi8uLi8uLi8uLi91c3IvaW5jbHVkZS8gICAgY2xvbmUzX3NldF90aWQuYyAvaG9tZS9icmF1 bmVyL3NyYy9naXQvbGludXgvbGludXgvdG9vbHMvdGVzdGluZy9zZWxmdGVzdHMva3NlbGZ0ZXN0 X2hhcm5lc3MuaCAvaG9tZS9icmF1bmVyL3NyYy9naXQvbGludXgvbGludXgvdG9vbHMvdGVzdGlu Zy9zZWxmdGVzdHMva3NlbGZ0ZXN0LmggLWxjYXAgLW8gL2hvbWUvYnJhdW5lci9zcmMvZ2l0L2xp bnV4L2xpbnV4L3Rvb2xzL3Rlc3Rpbmcvc2VsZnRlc3RzL2Nsb25lMy9jbG9uZTNfc2V0X3RpZAo+ IEluIGZpbGUgaW5jbHVkZWQgZnJvbSBjbG9uZTNfc2V0X3RpZC5jOjI0Ogo+IGNsb25lM19zZWxm dGVzdHMuaDozNzo4OiBlcnJvcjogcmVkZWZpbml0aW9uIG9mIOKAmHN0cnVjdCBjbG9uZV9hcmdz 4oCZCj4gICAgMzcgfCBzdHJ1Y3QgY2xvbmVfYXJncyB7Cj4gICAgICAgfCAgICAgICAgXn5+fn5+ fn5+fgo+IEluIGZpbGUgaW5jbHVkZWQgZnJvbSBjbG9uZTNfc2V0X3RpZC5jOjEyOgo+IC91c3Iv aW5jbHVkZS9saW51eC9zY2hlZC5oOjkyOjg6IG5vdGU6IG9yaWdpbmFsbHkgZGVmaW5lZCBoZXJl Cj4gICAgOTIgfCBzdHJ1Y3QgY2xvbmVfYXJncyB7Cj4gICAgICAgfCAgICAgICAgXn5+fn5+fn5+ fgo+IG1ha2U6ICoqKiBbLi4vbGliLm1rOjE0MDogL2hvbWUvYnJhdW5lci9zcmMvZ2l0L2xpbnV4 L2xpbnV4L3Rvb2xzL3Rlc3Rpbmcvc2VsZnRlc3RzL2Nsb25lMy9jbG9uZTNfc2V0X3RpZF0gRXJy b3IgMQoKSG0sIHdlaXJkLgoKPiBPbmUgdHJpY2sgdG8gYXZvaWQgdGhpcyBjb3VsZCBiZToKPiAK PiAjaWZuZGVmIENMT05FX0FSR1NfU0laRV9WRVIwCj4gI2RlZmluZSBDTE9ORV9BUkdTX1NJWkVf VkVSMCA2NCAvKiBzaXplb2YgZmlyc3QgcHVibGlzaGVkIHN0cnVjdCAqLwo+ICNlbmRpZgo+IAo+ ICNpZm5kZWYgQ0xPTkVfQVJHU19TSVpFX1ZFUjEKPiAjZGVmaW5lIENMT05FX0FSR1NfU0laRV9W RVIxIDgwIC8qIHNpemVvZiBzZWNvbmQgcHVibGlzaGVkIHN0cnVjdCAqLwo+ICNlbmRpZgo+IAo+ ICNpZm5kZWYgQ0xPTkVfQVJHU19TSVpFX1ZFUjIKPiAjZGVmaW5lIENMT05FX0FSR1NfU0laRV9W RVIyIDg4IC8qIHNpemVvZiB0aGlyZCBwdWJsaXNoZWQgc3RydWN0ICovCj4gI2VuZGlmCj4gCj4g c3RydWN0IF9fY2xvbmVfYXJncyB7Cj4gCV9fYWxpZ25lZF91NjQgZmxhZ3M7Cj4gCV9fYWxpZ25l ZF91NjQgcGlkZmQ7Cj4gCV9fYWxpZ25lZF91NjQgY2hpbGRfdGlkOwo+IAlfX2FsaWduZWRfdTY0 IHBhcmVudF90aWQ7Cj4gCV9fYWxpZ25lZF91NjQgZXhpdF9zaWduYWw7Cj4gCV9fYWxpZ25lZF91 NjQgc3RhY2s7Cj4gCV9fYWxpZ25lZF91NjQgc3RhY2tfc2l6ZTsKPiAJX19hbGlnbmVkX3U2NCB0 bHM7Cj4gCV9fYWxpZ25lZF91NjQgc2V0X3RpZDsKPiAJX19hbGlnbmVkX3U2NCBzZXRfdGlkX3Np emU7Cj4gCV9fYWxpZ25lZF91NjQgY2dyb3VwOwo+IH07Cj4gCj4gc3RhdGljIHBpZF90IHN5c19j bG9uZTMoc3RydWN0IF9fY2xvbmVfYXJncyAqYXJncywgc2l6ZV90IHNpemUpCj4gewo+IAlyZXR1 cm4gc3lzY2FsbChfX05SX2Nsb25lMywgYXJncywgc2l6ZSk7Cj4gfQoKWWVhaCwgdGhhdCBoYXMg ZmV3ZXIgZG93biBzaWRlcy4gSSdsbCByZXdvcmsgaXQuCgotLSAKS2VlcyBDb29rCgpfX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXwpsaW51eC1hcm0ta2VybmVs IG1haWxpbmcgbGlzdApsaW51eC1hcm0ta2VybmVsQGxpc3RzLmluZnJhZGVhZC5vcmcKaHR0cDov L2xpc3RzLmluZnJhZGVhZC5vcmcvbWFpbG1hbi9saXN0aW5mby9saW51eC1hcm0ta2VybmVsCg==