From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mga12.intel.com (mga12.intel.com [192.55.52.136]) by gabe.freedesktop.org (Postfix) with ESMTPS id EF51F6E29A for ; Thu, 7 Mar 2019 11:25:43 +0000 (UTC) From: Petri Latvala Date: Thu, 7 Mar 2019 13:24:27 +0200 Message-Id: <20190307112427.29146-5-petri.latvala@intel.com> In-Reply-To: <20190307112427.29146-1-petri.latvala@intel.com> References: <20190307112427.29146-1-petri.latvala@intel.com> MIME-Version: 1.0 Subject: [igt-dev] [PATCH i-g-t 5/5] lib/igt_pm: Avoid out-of-bounds reads and writes List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Errors-To: igt-dev-bounces@lists.freedesktop.org Sender: "igt-dev" To: igt-dev@lists.freedesktop.org Cc: Petri Latvala List-ID: UmVhZCBzaXplb2YgLSAxIHRvIGJ1ZmZlcnMgc28gbnVsbC10ZXJtaW5hdGlvbiBzdGF5cyBpbiBi b3VuZHMuCgpTaWduZWQtb2ZmLWJ5OiBQZXRyaSBMYXR2YWxhIDxwZXRyaS5sYXR2YWxhQGludGVs LmNvbT4KLS0tCiBsaWIvaWd0X3BtLmMgfCAxMiArKysrKystLS0tLS0KIDEgZmlsZSBjaGFuZ2Vk LCA2IGluc2VydGlvbnMoKyksIDYgZGVsZXRpb25zKC0pCgpkaWZmIC0tZ2l0IGEvbGliL2lndF9w bS5jIGIvbGliL2lndF9wbS5jCmluZGV4IDQ5MDI3MjM4Li45NDgxNTIzOSAxMDA2NDQKLS0tIGEv bGliL2lndF9wbS5jCisrKyBiL2xpYi9pZ3RfcG0uYwpAQCAtMTc2LDcgKzE3Niw3IEBAIHN0YXRp YyBpbnQgX19pZ3RfcG1fZW5hYmxlX2F1ZGlvX3J1bnRpbWVfcG0odm9pZCkKIAkJaWYgKGZkIDwg MCkKIAkJCWNvbnRpbnVlOwogCi0JCXJldCA9IHJlYWQoZmQsIGJ1Ziwgc2l6ZW9mKGJ1ZikpOwor CQlyZXQgPSByZWFkKGZkLCBidWYsIHNpemVvZihidWYpIC0gMSk7CiAJCWNsb3NlKGZkKTsKIAkJ aWd0X2Fzc2VydChyZXQgPiAwKTsKIAkJc3RyY2hvbXAoYnVmKTsKQEAgLTIwNiw3ICsyMDYsNyBA QCBzdGF0aWMgaW50IF9faWd0X3BtX2VuYWJsZV9hdWRpb19ydW50aW1lX3BtKHZvaWQpCiAJfQog CiAJaWd0X2Fzc2VydChyZWFkKGZkLCBfX2lndF9wbV9hdWRpb19ydW50aW1lX3Bvd2VyX3NhdmUs Ci0JCQlzaXplb2YoX19pZ3RfcG1fYXVkaW9fcnVudGltZV9wb3dlcl9zYXZlKSkgPiAwKTsKKwkJ CXNpemVvZihfX2lndF9wbV9hdWRpb19ydW50aW1lX3Bvd2VyX3NhdmUpIC0gMSkgPiAwKTsKIAlz dHJjaG9tcChfX2lndF9wbV9hdWRpb19ydW50aW1lX3Bvd2VyX3NhdmUpOwogCWlndF9pbnN0YWxs X2V4aXRfaGFuZGxlcihfX2lndF9wbV9hdWRpb19ydW50aW1lX2V4aXRfaGFuZGxlcik7CiAJaWd0 X2Fzc2VydF9lcSh3cml0ZShmZCwgIjFcbiIsIDIpLCAyKTsKQEAgLTIxOSw3ICsyMTksNyBAQCBz dGF0aWMgaW50IF9faWd0X3BtX2VuYWJsZV9hdWRpb19ydW50aW1lX3BtKHZvaWQpCiAJfQogCiAJ aWd0X2Fzc2VydChyZWFkKGZkLCBfX2lndF9wbV9hdWRpb19ydW50aW1lX2NvbnRyb2wsCi0JCQlz aXplb2YoX19pZ3RfcG1fYXVkaW9fcnVudGltZV9jb250cm9sKSkgPiAwKTsKKwkJCXNpemVvZihf X2lndF9wbV9hdWRpb19ydW50aW1lX2NvbnRyb2wpIC0gMSkgPiAwKTsKIAlzdHJjaG9tcChfX2ln dF9wbV9hdWRpb19ydW50aW1lX2NvbnRyb2wpOwogCWlndF9hc3NlcnRfZXEod3JpdGUoZmQsICJh dXRvXG4iLCA1KSwgNSk7CiAJY2xvc2UoZmQpOwpAQCAtNTI3LDcgKzUyNyw3IEBAIGJvb2wgaWd0 X3NldHVwX3J1bnRpbWVfcG0odm9pZCkKIAkgKiB0aGVtIG9uIHRlc3QgZXhpdC4KIAkgKi8KIAlz aXplID0gcmVhZChmZCwgX19pZ3RfcG1fcnVudGltZV9hdXRvc3VzcGVuZCwKLQkJICAgIHNpemVv ZihfX2lndF9wbV9ydW50aW1lX2F1dG9zdXNwZW5kKSk7CisJCSAgICBzaXplb2YoX19pZ3RfcG1f cnVudGltZV9hdXRvc3VzcGVuZCkgLSAxKTsKIAogCS8qCiAJICogSWYgd2UgZmFpbCB0byByZWFk IGZyb20gdGhlIGZpbGUsIGl0IG1lYW5zIHRoaXMgc3lzdGVtIGRvZXNuJ3QKQEAgLTU1NCw3ICs1 NTQsNyBAQCBib29sIGlndF9zZXR1cF9ydW50aW1lX3BtKHZvaWQpCiAJaWd0X2Fzc2VydF9mKGZk ID49IDAsICJDYW4ndCBvcGVuICIgUE9XRVJfRElSICIvY29udHJvbFxuIik7CiAKIAlpZ3RfYXNz ZXJ0KHJlYWQoZmQsIF9faWd0X3BtX3J1bnRpbWVfY29udHJvbCwKLQkJCXNpemVvZihfX2lndF9w bV9ydW50aW1lX2NvbnRyb2wpKSA+IDApOworCQkJc2l6ZW9mKF9faWd0X3BtX3J1bnRpbWVfY29u dHJvbCkgLSAxKSA+IDApOwogCXN0cmNob21wKF9faWd0X3BtX3J1bnRpbWVfY29udHJvbCk7CiAK IAlpZ3RfZGVidWcoIlNhdmVkIHJ1bnRpbWUgcG93ZXIgbWFuYWdlbWVudCBhcyAnJXMnIGFuZCAn JXMnXG4iLApAQCAtNTg4LDcgKzU4OCw3IEBAIGVudW0gaWd0X3J1bnRpbWVfcG1fc3RhdHVzIGln dF9nZXRfcnVudGltZV9wbV9zdGF0dXModm9pZCkKIAljaGFyIGJ1ZlszMl07CiAKIAlsc2Vlayhw bV9zdGF0dXNfZmQsIDAsIFNFRUtfU0VUKTsKLQluX3JlYWQgPSByZWFkKHBtX3N0YXR1c19mZCwg YnVmLCBBUlJBWV9TSVpFKGJ1ZikpOworCW5fcmVhZCA9IHJlYWQocG1fc3RhdHVzX2ZkLCBidWYs IEFSUkFZX1NJWkUoYnVmKSAtIDEpOwogCWlndF9hc3NlcnQobl9yZWFkID49IDApOwogCWJ1Zltu X3JlYWRdID0gJ1wwJzsKIAotLSAKMi4xOS4xCgpfX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fXwppZ3QtZGV2IG1haWxpbmcgbGlzdAppZ3QtZGV2QGxpc3RzLmZy ZWVkZXNrdG9wLm9yZwpodHRwczovL2xpc3RzLmZyZWVkZXNrdG9wLm9yZy9tYWlsbWFuL2xpc3Rp bmZvL2lndC1kZXY=