From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Rebecca N. Palmer" Subject: Re: [PATCH] drm/i915: Possible security hole in command parsing Date: Fri, 01 May 2015 20:13:21 +0100 Message-ID: <5543D051.2010205@zoho.com> References: <554212BF.1040309@zoho.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8"; Format="flowed" Content-Transfer-Encoding: base64 Return-path: Received: from sender1.zohomail.com (sender1.zohomail.com [74.201.84.155]) by gabe.freedesktop.org (Postfix) with ESMTP id 32C976E162 for ; Fri, 1 May 2015 12:14:36 -0700 (PDT) In-Reply-To: <554212BF.1040309@zoho.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 SSd2ZSBub3cgZG9uZSBzb21lIHRlc3RpbmcgKG9uIGFuIGk1LTMyMzBNLCBpbiBEZWJpYW4gOCks IGFuZCB0aGlzIHBhdGNoIApkb2Vzbid0ICphcHBlYXIqIHRvIGJyZWFrIGFueXRoaW5nOiBib3Ro IHdpdGggYW5kIHdpdGhvdXQgaXQgKHN0YXJ0aW5nIApmcm9tIGxpbnV4LW5leHQgMjAxNTA0MzAg KGZhOTRkZjEpICsgY29tbWl0IDI0NTA1NGEgZHJtL2k5MTU6IEVuYWJsZSBjbWQgCnBhcnNlciB0 byBkbyBzZWN1cmUgYmF0Y2ggcHJvbW90aW9uIGZvciBhbGlhc2luZyBwcGd0dCksCgotbGlidmEg KHNhaWQgaW4gZWFybGllciBkaXNjdXNzaW9uIHRvIHVzZSBjaGFpbmVkIGJhdGNoZXMpOiBhbGwg YmFzaWMgCnRlc3RzIHBhc3MgZXhjZXB0IHRlc3RfMDcgKHdoaWNoIGRvZXNuJ3Qgd29yayB1bmRl ciAzLjE2IGVpdGhlcik7IApwdXRzdXJmYWNlIHdvcmtzCi12aWRlbyAoZmlsZSBwbGF5YmFjayBh bmQgbGl2ZSBjYW1lcmEpIGluIHZsYyB3b3JrcwotYmVpZ25ldCAoT3BlbkNMKSB0ZXN0IHN1aXRl OiBhbGwgcGFzcyBleGNlcHQgYnVpbHRpbl9wb3dyXyogCihsb25nLXN0YW5kaW5nIGtub3duIGlz c3VlKSBhbmQgYnVpbHRpbl90Z2FtbWEgKGl0IGFwcGVhcnMgdGhhdCAKbGludXgtbmV4dCBwdXRz IHRoZSAqQypQVSBpbiBkZW5vcm1hbHMtZmx1c2hlZC10by0wIGZsb2F0aW5nIHBvaW50IG1vZGUs IAp3aGljaCBicmVha3MgdGhpcyB0ZXN0J3MgY2hlY2tpbmcgbWVjaGFuaXNtOiBub3Qgc3VyZSBp ZiB0aGF0J3MgYSBidWcgb3IgCmp1c3QgYSBkaWZmZXJlbmNlIGJldHdlZW4gRGViaWFuJ3MgYW5k IHlvdXIgZGVmYXVsdHMsIGJ1dCBhcyBpdCBoYXBwZW5zIApib3RoIHdpdGggYW5kIHdpdGhvdXQg dGhlIHBhdGNoLCBpdCdzIG5vdGhpbmcgdG8gZG8gd2l0aCB0aGlzKQoKVGhlIG9uZSBwcm9ibGVt IEkgZGlkIHNlZSBvbmx5IHdpdGggdGhlIHBhdGNoIHdhcyB0aGF0IG9uZSBzZXNzaW9uIGhhZCAK YWxsIGl0cyB3aW5kb3dzIG9wZW4gaW4gdGhlIHRvcCBsZWZ0IG9mIHRoZSBzY3JlZW4sIHVuLW1v dmFibGUsIGFuZCAKbWlzc2luZyB0aGVpciB0aXRsZSBiYXIsIGJ1dCB0aGlzIHdhcyBub3QgcmVw cm9kdWNpYmxlLCBzbyBJIGNhbid0IHRlbGwgCmlmIGl0IHdhcyBhIHJlc3VsdCBvZiB0aGUgcGF0 Y2ggb3IgYSBjb2luY2lkZW5jZS4KCkhvd2V2ZXIsIHBsYWluIGxpbnV4LW5leHQgMjAxNTA0MzAg KHdpdGhvdXQgMjQ1MDU0YSkgaGFzIGEgbG90IG9mIApwcm9ibGVtcyAoIkdQVSBIQU5HIiBpbiB0 aGUga2VybmVsIGxvZyBvbiBzdGFydHVwIGJ1dCB0aGUgWGZjZSBkZXNrdG9wIApkb2VzIGNvbWUg dXApLCBnbHhnZWFycyBzZWdmYXVsdHMsIGJlaWduZXQgZ2l2ZXMgYSBmZXcgd3JvbmcgKGFsbC0w KSAKcmVzdWx0cyB0aGVuIHRocm93cyBDTF9PVVRfT0ZfUkVTT1VSQ0VTLCB2aWRlbyBkb2Vzbid0 IHBsYXk7IHByb2JhYmx5IApodHRwczovL2J1Z3MuZnJlZWRlc2t0b3Aub3JnL3Nob3dfYnVnLmNn aT9pZD05MDE5MCksIGFuZCBnaXZlbiB0aGF0IGFsbCAKMjQ1MDU0YSBkb2VzIGlzIGVuYWJsZSBz ZWN1cmUgYmF0Y2ggcHJvbW90aW9uLCB0aGF0IHN1Z2dlc3RzIHRoYXQgdGhlIApkcml2ZXIgbm8g bG9uZ2VyIGhhbmRsZXMgbm9uLXByb21vdGVkIGJhdGNoZXMgcHJvcGVybHksIG1ha2luZyB0aGlz IApwYXRjaCBhIHJpc2t5IG1vdmUuCgpJIHRyaWVkIHRoZSBpbnRlbC1ncHUtdG9vbHMgdGVzdHMg KDEuMTAsIHJ1bm5pbmcgaW4gcmVjb3ZlcnkgbW9kZSB0byAKYXZvaWQgbG9hZGluZyBYKSwgYnV0 IGZvdW5kIHRoYXQgbW9zdCAobm90IGFsbCkgb2YgdGhlIHRlc3RzIHJlcG9ydGVkIAoiR1BVIEhB TkciIGluIGFsbCB0aHJlZSBsaW51eC1uZXh0IGNhc2VzIChidXQgd29ya2VkIHVuZGVyIDMuMTYp LgoKTm90ZSB0aGF0IEkgd2lsbCBiZSBhd2F5IGZyb20gZW1haWwgZm9yIHRoZSBuZXh0IGZldyBk YXlzLgoKX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KSW50 ZWwtZ2Z4IG1haWxpbmcgbGlzdApJbnRlbC1nZnhAbGlzdHMuZnJlZWRlc2t0b3Aub3JnCmh0dHA6 Ly9saXN0cy5mcmVlZGVza3RvcC5vcmcvbWFpbG1hbi9saXN0aW5mby9pbnRlbC1nZngK