From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ville =?iso-8859-1?Q?Syrj=E4l=E4?= Subject: Re: [PATCH v4 2/2] drm/i915: Validate userspace-provided color management LUT's (v3) Date: Tue, 18 Dec 2018 16:04:28 +0200 Message-ID: <20181218140428.GA20097@intel.com> References: <20181217224415.12848-1-matthew.d.roper@intel.com> <20181217224415.12848-2-matthew.d.roper@intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Content-Disposition: inline In-Reply-To: <20181217224415.12848-2-matthew.d.roper@intel.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" To: Matt Roper Cc: intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org List-Id: intel-gfx@lists.freedesktop.org T24gTW9uLCBEZWMgMTcsIDIwMTggYXQgMDI6NDQ6MTVQTSAtMDgwMCwgTWF0dCBSb3BlciB3cm90 ZToKPiBXZSBjdXJyZW50bHkgcHJvZ3JhbSB1c2Vyc3BhY2UtcHJvdmlkZWQgZ2FtbWEgYW5kIGRl Z2FtbWEgTFVUJ3MgaW50byBvdXIKPiBoYXJkd2FyZSB3aXRob3V0IHJlYWxseSBjaGVja2luZyB0 byBzZWUgd2hldGhlciB0aGV5IHNhdGlzZnkgb3VyCj4gaGFyZHdhcmUncyBydWxlcy4gIFdlIHNo b3VsZCB0cnkgdG8gY2F0Y2ggdGFibGVzIHRoYXQgYXJlIGludmFsaWQgZm9yCj4gb3VyIGhhcmR3 YXJlIGVhcmx5IGFuZCByZWplY3QgdGhlIGF0b21pYyB0cmFuc2FjdGlvbi4KPiAKPiBBbGwgb2Yg b3VyIHBsYXRmb3JtcyB0aGF0IGFjY2VwdCBhIGRlZ2FtbWEgTFVUIGV4cGVjdCB0aGF0IHRoZSBl bnRyaWVzCj4gaW4gdGhlIExVVCBhcmUgYWx3YXlzIGZsYXQgb3IgaW5jcmVhc2luZywgbmV2ZXIg ZGVjcmVhc2luZy4gIEFsc28sIG91cgo+IEdMSyBhbmQgSUNMIHBsYXRmb3JtcyBvbmx5IGFjY2Vw dCBkZWdhbW1hIHRhYmxlcyB3aXRoIHI9Zz1iIGVudHJpZXM7IHNvCj4gd2Ugc2hvdWxkIGFsc28g YWRkIHRoZSByZWxldmFudCBjaGVja3MgZm9yIHRoYXQgaW4gYW50aWNpcGF0aW9uIG9mCj4gZGVn YW1tYSBzdXBwb3J0IGxhbmRpbmcgZm9yIHRob3NlIHBsYXRmb3Jtcy4KPiAKPiB2MjoKPiAgLSBV c2UgbmV3IEFQSSAoc2luZ2xlIGNoZWNrIGZ1bmN0aW9uIHdpdGggYml0bWFzayBvZiB0ZXN0cyB0 byBhcHBseSkKPiAgLSBDYWxsIGhlbHBlciBmb3Igb3VyIGdhbW1hIHRhYmxlIGFzIHdlbGwgKHdp dGggbm8gYWRkaXRpb25hbCB0ZXN0cwo+ICAgIHNwZWNpZmllZCkgc28gdGhhdCB0aGUgdGFibGUg c2l6ZSB3aWxsIGJlIHZhbGlkYXRlZC4KPiAKPiB2MzoKPiAgLSBEb24ndCBjYWxsIG9uIHRoZSBn YW1tYSB0YWJsZSBzaW5jZSB0aGUgTFVUIHNpemUgaXMgYWxyZWFkeSB0ZXN0ZWQgYXQKPiAgICBw cm9wZXJ0eSBibG9iIHVwbG9hZCBhbmQgd2UgZG9uJ3QgaGF2ZSBhbnkgYWRkaXRpb25hbCBoYXJk d2FyZQo+ICAgIGNvbnN0cmFpbnRzIGZvciB0aGF0IExVVC4KPiAKPiBDYzogVW1hIFNoYW5rYXIg PHVtYS5zaGFua2FyQGludGVsLmNvbT4KPiBDYzogU3dhdGkgU2hhcm1hIDxzd2F0aTIuc2hhcm1h QGludGVsLmNvbT4KPiBTaWduZWQtb2ZmLWJ5OiBNYXR0IFJvcGVyIDxtYXR0aGV3LmQucm9wZXJA aW50ZWwuY29tPgo+IFJldmlld2VkLWJ5OiBVbWEgU2hhbmthciA8dW1hLnNoYW5rYXJAaW50ZWwu Y29tPgo+IC0tLQo+ICBkcml2ZXJzL2dwdS9kcm0vaTkxNS9pbnRlbF9jb2xvci5jIHwgMTYgKysr KysrKysrKysrKysrKwo+ICAxIGZpbGUgY2hhbmdlZCwgMTYgaW5zZXJ0aW9ucygrKQo+IAo+IGRp ZmYgLS1naXQgYS9kcml2ZXJzL2dwdS9kcm0vaTkxNS9pbnRlbF9jb2xvci5jIGIvZHJpdmVycy9n cHUvZHJtL2k5MTUvaW50ZWxfY29sb3IuYwo+IGluZGV4IDM3ZmQ5ZGRmNzYyZS4uYmRiZTQ3NGFk OWIyIDEwMDY0NAo+IC0tLSBhL2RyaXZlcnMvZ3B1L2RybS9pOTE1L2ludGVsX2NvbG9yLmMKPiAr KysgYi9kcml2ZXJzL2dwdS9kcm0vaTkxNS9pbnRlbF9jb2xvci5jCj4gQEAgLTYwOSwxMCArNjA5 LDI2IEBAIGludCBpbnRlbF9jb2xvcl9jaGVjayhzdHJ1Y3QgaW50ZWxfY3J0Y19zdGF0ZSAqY3J0 Y19zdGF0ZSkKPiAgewo+ICAJc3RydWN0IGRybV9pOTE1X3ByaXZhdGUgKmRldl9wcml2ID0gdG9f aTkxNShjcnRjX3N0YXRlLT5iYXNlLmNydGMtPmRldik7Cj4gIAlzaXplX3QgZ2FtbWFfbGVuZ3Ro LCBkZWdhbW1hX2xlbmd0aDsKPiArCXVpbnQzMl90IHRlc3RzID0gRFJNX0NPTE9SX0xVVF9OT05f REVDUkVBU0lORzsKPiAgCj4gIAlkZWdhbW1hX2xlbmd0aCA9IElOVEVMX0lORk8oZGV2X3ByaXYp LT5jb2xvci5kZWdhbW1hX2x1dF9zaXplOwo+ICAJZ2FtbWFfbGVuZ3RoID0gSU5URUxfSU5GTyhk ZXZfcHJpdiktPmNvbG9yLmdhbW1hX2x1dF9zaXplOwo+ICAKPiArCS8qCj4gKwkgKiBBbGwgb2Yg b3VyIHBsYXRmb3JtcyBtYW5kYXRlIHRoYXQgdGhlIGRlZ2FtbWEgY3VydmUgYmUKPiArCSAqIG5v bi1kZWNyZWFzaW5nLiAgQWRkaXRpb25hbGx5LCBHTEsgYW5kIGdlbjExIG9ubHkgYWNjZXB0IGEg c2luZ2xlCj4gKwkgKiB2YWx1ZSBmb3IgcmVkLCBncmVlbiwgYW5kIGJsdWUgaW4gdGhlIGRlZ2Ft bWEgdGFibGUuICBNYWtlIHN1cmUKPiArCSAqIHVzZXJzcGFjZSBkaWRuJ3QgdHJ5IHRvIHBhc3Mg dXMgc29tZXRoaW5nIHdlIGNhbid0IGhhbmRsZS4KPiArCSAqCj4gKwkgKiBXZSBkb24ndCBoYXZl IGFueSBleHRyYSBoYXJkd2FyZSBjb25zdHJhaW50cyBvbiB0aGUgZ2FtbWEgdGFibGUsCj4gKwkg KiBzbyBubyBuZWVkIHRvIGV4cGxpY2l0bHkgY2hlY2sgaXQuCj4gKwkgKi8KPiArCWlmIChJU19H RU1JTklMQUtFKGRldl9wcml2KSB8fCBJTlRFTF9HRU4oZGV2X3ByaXYpID49IDExKQo+ICsJCXRl c3RzIHw9IERSTV9DT0xPUl9MVVRfRVFVQUxfQ0hBTk5FTFM7CgogPj0gMTAgPwoKPiArCj4gKwlp ZiAoZHJtX2NvbG9yX2x1dF9jaGVjayhjcnRjX3N0YXRlLT5iYXNlLmRlZ2FtbWFfbHV0LCB0ZXN0 cykgIT0gMCkKPiArCQlyZXR1cm4gLUVJTlZBTDsKPiArCj4gIAkvKgo+ICAJICogV2UgYWxsb3cg Ym90aCBkZWdhbW1hICYgZ2FtbWEgbHV0cyBhdCB0aGUgcmlnaHQgc2l6ZSBvcgo+ICAJICogTlVM TC4KPiAtLSAKPiAyLjE0LjQKPiAKPiBfX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fXwo+IGRyaS1kZXZlbCBtYWlsaW5nIGxpc3QKPiBkcmktZGV2ZWxAbGlzdHMu ZnJlZWRlc2t0b3Aub3JnCj4gaHR0cHM6Ly9saXN0cy5mcmVlZGVza3RvcC5vcmcvbWFpbG1hbi9s aXN0aW5mby9kcmktZGV2ZWwKCi0tIApWaWxsZSBTeXJqw6Rsw6QKSW50ZWwKX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KSW50ZWwtZ2Z4IG1haWxpbmcgbGlz dApJbnRlbC1nZnhAbGlzdHMuZnJlZWRlc2t0b3Aub3JnCmh0dHBzOi8vbGlzdHMuZnJlZWRlc2t0 b3Aub3JnL21haWxtYW4vbGlzdGluZm8vaW50ZWwtZ2Z4Cg==