From mboxrd@z Thu Jan 1 00:00:00 1970 From: Matt Roper Subject: [PATCH i-g-t] kms_cursor_crc: Kernel now checks for integer overflow Date: Mon, 2 Feb 2015 14:20:48 -0800 Message-ID: <1422915648-752-1-git-send-email-matthew.d.roper@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 ESMTP id 2EA996E554 for ; Mon, 2 Feb 2015 14:21:07 -0800 (PST) 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 QXMgb2Yga2VybmVsIGNvbW1pdAoKICAgIGNvbW1pdCBhNjc5MDY0YTdlOWU4Nzk5MTc3YTY0YTMx NjY4YTM0YTFiYzZhNGYxCiAgICBBdXRob3I6IE1hdHQgUm9wZXIgPG1hdHRoZXcuZC5yb3BlckBp bnRlbC5jb20+CiAgICBEYXRlOiAgIEZyaSBKYW4gMzAgMTY6MjI6MzcgMjAxNSAtMDgwMAoKICAg ICAgICBkcm0vaTkxNTogU3dpdGNoIHBsYW5lcyBmcm9tIHRyYW5zaXRpb25hbCBoZWxwZXJzIHRv IGZ1bGwgYXRvbWljIGhlbHBlcnMKCnRoZSBrZXJuZWwgbm93IGNoZWNrcyBmb3IgY3Vyc29yIGNv b3JkaW5hdGVzIHRoYXQgd291bGQgcmVzdWx0IGluCmludGVnZXIgb3ZlcmZsb3cgYW5kIHJldHVy bnMgLUVSQU5HRSwgc2ltaWxhciB0byB0aGUgY2hlY2tpbmcgdGhhdCB3YXMKYWxyZWFkeSBkb25l IGZvciBvdGhlciBwbGFuZSB0eXBlcy4gIFdlIHVwZGF0ZSBrbXNfY3Vyc29yX2NyYyBoZXJlIHRv CnJlZmxlY3QgdGhpcyBzbWFsbCBiZWhhdmlvciBjaGFuZ2U6CiAqIENoZWNrIGZvciBzdWNjZXNz IGF0IGV4dHJlbWUgYm91bmRhcnkgY29uZGl0aW9ucyBJTlRfTUFYLXt3aWR0aCxoZWlnaHR9CiAg IHJhdGhlciB0aGFuIElOVF9NQVgKICogQWRkIG5ldyBjaGVjayBmb3Igc3VjY2VzcyBhdCBTSFJU X01BWDsgaWYgdGhlIGRyaXZlciB3ZXJlIHRvCiAgIGludGVybmFsbHkgdXNlIHNob3J0IHZhbHVl cyBhbmQgb3ZlcmZsb3csIHdlIGNvdWxkIGhhdmUgdGhlIGN1cnNvcgogICByZWFwcGVhciBvbiB0 aGUgc2NyZWVuLgogKiBBZGQgYSB0ZXN0IGZvciBmYWlsdXJlIHdpdGggcHJvcGVyIGVycm9yIGNv ZGUgYXQgSU5UX01BWC17d2lkdGgsaGVpZ2h0fSsxCgpTaWduZWQtb2ZmLWJ5OiBNYXR0IFJvcGVy IDxtYXR0aGV3LmQucm9wZXJAaW50ZWwuY29tPgotLS0KIHRlc3RzL2ttc19jdXJzb3JfY3JjLmMg fCAyOSArKysrKysrKysrKysrKysrKysrKysrKysrKysrLQogMSBmaWxlIGNoYW5nZWQsIDI4IGlu c2VydGlvbnMoKyksIDEgZGVsZXRpb24oLSkKCmRpZmYgLS1naXQgYS90ZXN0cy9rbXNfY3Vyc29y X2NyYy5jIGIvdGVzdHMva21zX2N1cnNvcl9jcmMuYwppbmRleCBlMTM5MGE3Li42NGZlYTEyIDEw MDY0NAotLS0gYS90ZXN0cy9rbXNfY3Vyc29yX2NyYy5jCisrKyBiL3Rlc3RzL2ttc19jdXJzb3Jf Y3JjLmMKQEAgLTEzOSw2ICsxMzksMjkgQEAgc3RhdGljIHZvaWQgZG9fc2luZ2xlX3Rlc3QoZGF0 YV90ICpkYXRhLCBpbnQgeCwgaW50IHkpCiAJaWd0X2Fzc2VydChpZ3RfY3JjX2VxdWFsKCZjcmMs ICZyZWZfY3JjKSk7CiB9CiAKK3N0YXRpYyB2b2lkIGRvX2ZhaWxfdGVzdChkYXRhX3QgKmRhdGEs IGludCB4LCBpbnQgeSwgaW50IGV4cGVjdCkKK3sKKwlpZ3RfZGlzcGxheV90ICpkaXNwbGF5ID0g JmRhdGEtPmRpc3BsYXk7CisJaWd0X3BsYW5lX3QgKmN1cnNvcjsKKwljYWlyb190ICpjciA9IGln dF9nZXRfY2Fpcm9fY3R4KGRhdGEtPmRybV9mZCwgJmRhdGEtPnByaW1hcnlfZmIpOworCWludCBy ZXQ7CisKKwlpZ3RfcHJpbnRfYWN0aXZpdHkoKTsKKworCS8qIEhhcmR3YXJlIHRlc3QgKi8KKwlp Z3RfcGFpbnRfdGVzdF9wYXR0ZXJuKGNyLCBkYXRhLT5zY3JlZW53LCBkYXRhLT5zY3JlZW5oKTsK KwljdXJzb3JfZW5hYmxlKGRhdGEpOworCWN1cnNvciA9IGlndF9vdXRwdXRfZ2V0X3BsYW5lKGRh dGEtPm91dHB1dCwgSUdUX1BMQU5FX0NVUlNPUik7CisJaWd0X3BsYW5lX3NldF9wb3NpdGlvbihj dXJzb3IsIHgsIHkpOworCXJldCA9IGlndF9kaXNwbGF5X3RyeV9jb21taXQyKGRpc3BsYXksIENP TU1JVF9MRUdBQ1kpOworCisJaWd0X3BsYW5lX3NldF9wb3NpdGlvbihjdXJzb3IsIDAsIDApOwor CWN1cnNvcl9kaXNhYmxlKGRhdGEpOworCWlndF9kaXNwbGF5X2NvbW1pdChkaXNwbGF5KTsKKwor CWlndF9hc3NlcnQocmV0ID09IGV4cGVjdCk7Cit9CisKIHN0YXRpYyB2b2lkIGRvX3Rlc3QoZGF0 YV90ICpkYXRhLAogCQkgICAgaW50IGxlZnQsIGludCByaWdodCwgaW50IHRvcCwgaW50IGJvdHRv bSkKIHsKQEAgLTIwMSw3ICsyMjQsMTEgQEAgc3RhdGljIHZvaWQgdGVzdF9jcmNfb2Zmc2NyZWVu KGRhdGFfdCAqZGF0YSkKIAlkb190ZXN0KGRhdGEsIGxlZnQgLSAoY3Vyc29yX3crNTEyKSwgcmln aHQgKyAoY3Vyc29yX3crNTEyKSwgdG9wIC0gKGN1cnNvcl9oKzUxMiksIGJvdHRvbSArIChjdXJz b3JfaCs1MTIpKTsKIAogCS8qIGdvIG51dHMgKi8KLQlkb190ZXN0KGRhdGEsIElOVF9NSU4sIElO VF9NQVgsIElOVF9NSU4sIElOVF9NQVgpOworCWRvX3Rlc3QoZGF0YSwgSU5UX01JTiwgSU5UX01B WCAtIGN1cnNvcl93LCBJTlRfTUlOLCBJTlRfTUFYIC0gY3Vyc29yX2gpOworCWRvX3Rlc3QoZGF0 YSwgU0hSVF9NSU4sIFNIUlRfTUFYLCBTSFJUX01JTiwgU0hSVF9NQVgpOworCisJLyogTWFrZSBz dXJlIHdlIGdldCAtRVJBTkdFIG9uIGludGVnZXIgb3ZlcmZsb3cgKi8KKwlkb19mYWlsX3Rlc3Qo ZGF0YSwgSU5UX01BWCAtIGN1cnNvcl93ICsgMSwgSU5UX01BWCAtIGN1cnNvcl9oICsgMSwgLUVS QU5HRSk7CiB9CiAKIHN0YXRpYyB2b2lkIHRlc3RfY3JjX3NsaWRpbmcoZGF0YV90ICpkYXRhKQot LSAKMS44LjUuMQoKX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X18KSW50ZWwtZ2Z4IG1haWxpbmcgbGlzdApJbnRlbC1nZnhAbGlzdHMuZnJlZWRlc2t0b3Aub3Jn Cmh0dHA6Ly9saXN0cy5mcmVlZGVza3RvcC5vcmcvbWFpbG1hbi9saXN0aW5mby9pbnRlbC1nZngK