From mboxrd@z Thu Jan 1 00:00:00 1970 From: Matt Roper Subject: [PATCH v4 2/2] drm/i915: Validate userspace-provided color management LUT's (v4) Date: Tue, 18 Dec 2018 09:51:58 -0800 Message-ID: <20181218175158.5739-1-matthew.d.roper@intel.com> References: <20181218140428.GA20097@intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from mga11.intel.com (mga11.intel.com [192.55.52.93]) by gabe.freedesktop.org (Postfix) with ESMTPS id 64BE36E06C for ; Tue, 18 Dec 2018 17:53:35 +0000 (UTC) In-Reply-To: <20181218140428.GA20097@intel.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" To: intel-gfx@lists.freedesktop.org List-Id: intel-gfx@lists.freedesktop.org V2UgY3VycmVudGx5IHByb2dyYW0gdXNlcnNwYWNlLXByb3ZpZGVkIGdhbW1hIGFuZCBkZWdhbW1h IExVVCdzIGludG8gb3VyCmhhcmR3YXJlIHdpdGhvdXQgcmVhbGx5IGNoZWNraW5nIHRvIHNlZSB3 aGV0aGVyIHRoZXkgc2F0aXNmeSBvdXIKaGFyZHdhcmUncyBydWxlcy4gIFdlIHNob3VsZCB0cnkg dG8gY2F0Y2ggdGFibGVzIHRoYXQgYXJlIGludmFsaWQgZm9yCm91ciBoYXJkd2FyZSBlYXJseSBh bmQgcmVqZWN0IHRoZSBhdG9taWMgdHJhbnNhY3Rpb24uCgpBbGwgb2Ygb3VyIHBsYXRmb3JtcyB0 aGF0IGFjY2VwdCBhIGRlZ2FtbWEgTFVUIGV4cGVjdCB0aGF0IHRoZSBlbnRyaWVzCmluIHRoZSBM VVQgYXJlIGFsd2F5cyBmbGF0IG9yIGluY3JlYXNpbmcsIG5ldmVyIGRlY3JlYXNpbmcuICBBbHNv LCBvdXIKR0xLIGFuZCBJQ0wgcGxhdGZvcm1zIG9ubHkgYWNjZXB0IGRlZ2FtbWEgdGFibGVzIHdp dGggcj1nPWIgZW50cmllczsgc28Kd2Ugc2hvdWxkIGFsc28gYWRkIHRoZSByZWxldmFudCBjaGVj a3MgZm9yIHRoYXQgaW4gYW50aWNpcGF0aW9uIG9mCmRlZ2FtbWEgc3VwcG9ydCBsYW5kaW5nIGZv ciB0aG9zZSBwbGF0Zm9ybXMuCgp2MjoKIC0gVXNlIG5ldyBBUEkgKHNpbmdsZSBjaGVjayBmdW5j dGlvbiB3aXRoIGJpdG1hc2sgb2YgdGVzdHMgdG8gYXBwbHkpCiAtIENhbGwgaGVscGVyIGZvciBv dXIgZ2FtbWEgdGFibGUgYXMgd2VsbCAod2l0aCBubyBhZGRpdGlvbmFsIHRlc3RzCiAgIHNwZWNp ZmllZCkgc28gdGhhdCB0aGUgdGFibGUgc2l6ZSB3aWxsIGJlIHZhbGlkYXRlZC4KCnYzOgogLSBE b24ndCBjYWxsIG9uIHRoZSBnYW1tYSB0YWJsZSBzaW5jZSB0aGUgTFVUIHNpemUgaXMgYWxyZWFk eSB0ZXN0ZWQgYXQKICAgcHJvcGVydHkgYmxvYiB1cGxvYWQgYW5kIHdlIGRvbid0IGhhdmUgYW55 IGFkZGl0aW9uYWwgaGFyZHdhcmUKICAgY29uc3RyYWludHMgZm9yIHRoYXQgTFVULgoKdjQ6CiAt IEFwcGx5IGVxdWFsIGNvbG9yIGNoYW5uZWwgY2hlY2sgb24gZ2VuMTAgYXMgd2VsbDsgdGhlIGJz cGVjIGhhcyBzb21lCiAgIHN0cmFuZ2UgdGFnZ2luZyBmb3IgQ05MIHBsYXRmb3JtcywgYnV0IHRo aXMgYXBwZWFycyB0byBhcHBseSB0aGVyZSBhcwogICB3ZWxsLiAgKFZpbGxlKQoKQ2M6IFVtYSBT aGFua2FyIDx1bWEuc2hhbmthckBpbnRlbC5jb20+CkNjOiBTd2F0aSBTaGFybWEgPHN3YXRpMi5z aGFybWFAaW50ZWwuY29tPgpDYzogVmlsbGUgU3lyasOkbMOkIDx2aWxsZS5zeXJqYWxhQGxpbnV4 LmludGVsLmNvbT4KU2lnbmVkLW9mZi1ieTogTWF0dCBSb3BlciA8bWF0dGhldy5kLnJvcGVyQGlu dGVsLmNvbT4KUmV2aWV3ZWQtYnk6IFVtYSBTaGFua2FyIDx1bWEuc2hhbmthckBpbnRlbC5jb20+ Ci0tLQogZHJpdmVycy9ncHUvZHJtL2k5MTUvaW50ZWxfY29sb3IuYyB8IDE2ICsrKysrKysrKysr KysrKysKIDEgZmlsZSBjaGFuZ2VkLCAxNiBpbnNlcnRpb25zKCspCgpkaWZmIC0tZ2l0IGEvZHJp dmVycy9ncHUvZHJtL2k5MTUvaW50ZWxfY29sb3IuYyBiL2RyaXZlcnMvZ3B1L2RybS9pOTE1L2lu dGVsX2NvbG9yLmMKaW5kZXggMzdmZDlkZGY3NjJlLi5lM2ZmYmIwYWQ5YTYgMTAwNjQ0Ci0tLSBh L2RyaXZlcnMvZ3B1L2RybS9pOTE1L2ludGVsX2NvbG9yLmMKKysrIGIvZHJpdmVycy9ncHUvZHJt L2k5MTUvaW50ZWxfY29sb3IuYwpAQCAtNjA5LDEwICs2MDksMjYgQEAgaW50IGludGVsX2NvbG9y X2NoZWNrKHN0cnVjdCBpbnRlbF9jcnRjX3N0YXRlICpjcnRjX3N0YXRlKQogewogCXN0cnVjdCBk cm1faTkxNV9wcml2YXRlICpkZXZfcHJpdiA9IHRvX2k5MTUoY3J0Y19zdGF0ZS0+YmFzZS5jcnRj LT5kZXYpOwogCXNpemVfdCBnYW1tYV9sZW5ndGgsIGRlZ2FtbWFfbGVuZ3RoOworCXVpbnQzMl90 IHRlc3RzID0gRFJNX0NPTE9SX0xVVF9OT05fREVDUkVBU0lORzsKIAogCWRlZ2FtbWFfbGVuZ3Ro ID0gSU5URUxfSU5GTyhkZXZfcHJpdiktPmNvbG9yLmRlZ2FtbWFfbHV0X3NpemU7CiAJZ2FtbWFf bGVuZ3RoID0gSU5URUxfSU5GTyhkZXZfcHJpdiktPmNvbG9yLmdhbW1hX2x1dF9zaXplOwogCisJ LyoKKwkgKiBBbGwgb2Ygb3VyIHBsYXRmb3JtcyBtYW5kYXRlIHRoYXQgdGhlIGRlZ2FtbWEgY3Vy dmUgYmUKKwkgKiBub24tZGVjcmVhc2luZy4gIEFkZGl0aW9uYWxseSwgR0xLIGFuZCBnZW4xMSBv bmx5IGFjY2VwdCBhIHNpbmdsZQorCSAqIHZhbHVlIGZvciByZWQsIGdyZWVuLCBhbmQgYmx1ZSBp biB0aGUgZGVnYW1tYSB0YWJsZS4gIE1ha2Ugc3VyZQorCSAqIHVzZXJzcGFjZSBkaWRuJ3QgdHJ5 IHRvIHBhc3MgdXMgc29tZXRoaW5nIHdlIGNhbid0IGhhbmRsZS4KKwkgKgorCSAqIFdlIGRvbid0 IGhhdmUgYW55IGV4dHJhIGhhcmR3YXJlIGNvbnN0cmFpbnRzIG9uIHRoZSBnYW1tYSB0YWJsZSwK KwkgKiBzbyBubyBuZWVkIHRvIGV4cGxpY2l0bHkgY2hlY2sgaXQuCisJICovCisJaWYgKElTX0dF TUlOSUxBS0UoZGV2X3ByaXYpIHx8IElOVEVMX0dFTihkZXZfcHJpdikgPj0gMTApCisJCXRlc3Rz IHw9IERSTV9DT0xPUl9MVVRfRVFVQUxfQ0hBTk5FTFM7CisKKwlpZiAoZHJtX2NvbG9yX2x1dF9j aGVjayhjcnRjX3N0YXRlLT5iYXNlLmRlZ2FtbWFfbHV0LCB0ZXN0cykgIT0gMCkKKwkJcmV0dXJu IC1FSU5WQUw7CisKIAkvKgogCSAqIFdlIGFsbG93IGJvdGggZGVnYW1tYSAmIGdhbW1hIGx1dHMg YXQgdGhlIHJpZ2h0IHNpemUgb3IKIAkgKiBOVUxMLgotLSAKMi4xNC40CgpfX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXwpJbnRlbC1nZnggbWFpbGluZyBsaXN0 CkludGVsLWdmeEBsaXN0cy5mcmVlZGVza3RvcC5vcmcKaHR0cHM6Ly9saXN0cy5mcmVlZGVza3Rv cC5vcmcvbWFpbG1hbi9saXN0aW5mby9pbnRlbC1nZngK