From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tobias Jakobi Subject: Re: [PATCH] drm/exynos: g2d: fix overflow of cmdlist size Date: Fri, 20 Jan 2017 17:05:04 +0100 Message-ID: <58823530.70107@math.uni-bielefeld.de> References: <1484628126-21671-1-git-send-email-jy0922.shim@samsung.com> <587E2922.10805@math.uni-bielefeld.de> <5880BC19.8080000@math.uni-bielefeld.de> <67df69b9-3231-efd3-8e28-d73ce00ebe41@samsung.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: In-Reply-To: <67df69b9-3231-efd3-8e28-d73ce00ebe41@samsung.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" To: Joonyoung Shim , Tobias Jakobi , dri-devel@lists.freedesktop.org Cc: linux-samsung-soc@vger.kernel.org, sw0312.kim@samsung.com List-Id: linux-samsung-soc@vger.kernel.org SGVsbG8gSm9vbnlvdW5nLAoKCkpvb255b3VuZyBTaGltIHdyb3RlOgo+IEhpIFRvYmlhcywKPiAK PiBPbiAwMS8xOS8yMDE3IDEwOjE2IFBNLCBUb2JpYXMgSmFrb2JpIHdyb3RlOgo+PiBIZWxsbyBK b29ueW91bmcsCj4+Cj4+IEpvb255b3VuZyBTaGltIHdyb3RlOgo+Pj4gSGkgVG9iaWFzLAo+Pj4K Pj4+IE9uIDAxLzE3LzIwMTcgMTE6MjQgUE0sIFRvYmlhcyBKYWtvYmkgd3JvdGU6Cj4+Pj4gSm9v bnlvdW5nIFNoaW0gd3JvdGU6Cj4+Pj4+IFRoZSBzaXplIG9mIGNtZGxpc3QgaXMgaW50ZWdlciB0 eXBlLCBzbyBpdCBjYW4gYmUgb3ZlcmZsb3dlZCBieSBjbWQgYW5kCj4+Pj4+IGNtZF9idWYgdGhh dCBoYXMgdG9vIGJpZyBzaXplLiBUaGlzIHBhdGNoIHdpbGwgZml4IG92ZXJmbG93IGlzc3VlIGFz Cj4+Pj4+IGNoZWNraW5nIG1heGltdW0gc2l6ZSBvZiBjbWQgYW5kIGNtZF9idWYuCj4+Pj4gSSBk b24ndCB1bmRlcnN0YW5kL3NlZSB0aGUgaXNzdWUgaGVyZS4gQ291bGQgeW91IHBvaW50IG91dCBm b3Igd2hpY2gKPj4+PiBpbnB1dCBvZiB0aGUgc2V0X2NtZGxpc3QgaW9jdGwgeW91IHNlZSB0aGlz IHBhcnRpY3VsYXIgb3ZlcmZsb3c/Cj4+Pj4KPj4+PiBJbiBwYXJ0aWN1bGFyIGl0IGlzIG5vdCBj bGVhciB0byBtZSB3aGljaCBzaXplIGZpZWxkIHlvdSdyZSB0YWxraW5nCj4+Pj4gYWJvdXQuIHN0 cnVjdCBnMmRfY21kbGlzdCBkb2VzIG5vdCBoYXZlIGFueSBmaWVsZCBuYW1lZCAnc2l6ZScuCj4+ Pj4KPj4+Cj4+PiBJIG1lYW4gc2l6ZSBvZiBjbWRsaXN0IGlzCj4+PiBzaXplID0gY21kbGlzdC0+ bGFzdCArIHJlcS0+Y21kX25yICogMiArIHJlcS0+Y21kX2J1Zl9uciAqIDIgKyAyOwo+Pj4gaW4g ZXh5bm9zX2cyZF9zZXRfY21kbGlzdF9pb2N0bCgpLgo+PiBvaywgdGhhdCBtYWtlcyB0aGluZ3Mg bW9yZSBjbGVhci4gQnV0IHRoZW4geW91IG5lZWQgdG8gZml4IHRoZSBjb21taXQKPj4gbWVzc2Fn ZS4gVGhlIGN1cnJlbnQgbWVzc2FnZSBpbXBsaWVzIHRoYXQgdGhpcyAnc2l6ZScgeW91J3JlIHRh bGtpbmcKPj4gYWJvdXQgaXMgc29tZSBwcm9wZXJ0eSBvZiB0aGUgY21kbGlzdC4KPj4KPj4gQWxz byB0aGUgbmV3IGNvbW1lbnQgaXMgd3JvbmcuCj4+IC8qIENoZWNrIHNpemUgb2YgY21kIGFuZCBj bWRsaXN0OiBsYXN0IDIgaXMgYWJvdXQgRzJEX0JJVEJMVF9TVEFSVCAqLwo+Pgo+PiBXaGF0IGlz IGNtZCBhbmQgY21kbGlzdD8gWW91J3JlIG1peGluZyB0d28gZGlmZmVyZW50IHRoaW5ncyBoZXJl LiBXZSBhcmUKPj4gc3RpbGwgY2hlY2tpbmcgdGhlIHNpemUgb2YgJ2NtZGxpc3QnICh3aGljaCBp cyBhIHN0cnVjdCBnMmRfY21kbGlzdCkgaGVyZS4KPj4KPj4gV2hhdCB5b3UgYWRkIGlzIGEgY2hl Y2sgZm9yIHRoZSBmaWVsZHMgb2YgJ3JlcScgKHdoaWNoIGlzIGEgc3RydWN0Cj4+IGRybV9leHlu b3NfZzJkX3NldF9jbWRsaXN0KS4KPj4KPj4gV2l0aCBhbGwgdGhhdCBzYWlkLCBJIGRvbid0IGxp a2UgdGhlIGNoYW5nZXMuIEkgc2VlIHRoZSBpc3N1ZSwgYnV0IHRoZQo+PiBjdXJyZW50IHNvbHV0 aW9uIHNob3VsZCBiZSBjbGVhbmVyLgo+Pgo+PiBJIHByb3Bvc2UgdGhpcy4gV2UganVzdCBjaGVj ayByZXEtPmNtZF9idWZfbnIgYW5kIHJlcS0+Y21kX25yIGFnYWluc3QKPj4gRzJEX0NNRExJU1Rf REFUQV9OVU0uIFRoaXMgbGVhdmVzIHVzIGVub3VnaCBoZWFkcm9tIHNvIHRoYXQgdGhlIGxhdGVy Cj4+IGNvbXB1dGF0aW9uIChpLmUuIHdoYXQgaXMgZW5kaW5nIHVwIGluIHRoZSBsb2NhbCB2YXJp YWJsZSAnc2l6ZScpIGNhbgo+PiBuZXZlciBvdmVyZmxvdy4KPj4KPiAKPiBBZ3JlZSwgaXQncyBt b3JlIGNsZWFyIHRvIGNoZWNrIHJlcS0+Y21kX2J1Zl9uciBhbmQgcmVxLT5jbWRfbnIgYWdhaW5z dAo+IEcyRF9DTURMSVNUX0RBVEFfTlVNLgo+IAo+PiBGb3IgYSBjb21tZW50IGZvciB0aGUgY2hl Y2sgSSBwcm9wb3NlIHRoaXM6Cj4+ICJUbyBhdm9pZCBhbiBpbnRlZ2VyIG92ZXJmbG93IGZvciB0 aGUgbGF0ZXIgc2l6ZSBjb21wdXRhdGlvbnMsIHdlCj4+IGVuZm9yY2UgYSBtYXhpbXVtIG51bWJl ciBvZiBzdWJtaXR0ZWQgY29tbWFuZHMgaGVyZS4gVGhpcyBsaW1pdCBpcwo+PiBzdWZmaWNpZW50 IGZvciBhbGwgY29uY2VpdmFibGUgdXNhZ2UgY2FzZXMgb2YgdGhlIEcyRC4iCj4+Cj4gCj4gQ291 bGQgeW91IHBvc3QgeW91ciBwYXRjaCB0byBNTCBhYm91dCB0aGlzIGlmIHlvdSB3YW50PwpTdXJl LCBJJ3ZlIGp1c3Qgc2VuZCBpdCB0b2dldGhlciB3aXRoIHR3byBvdGhlciBzbWFsbCBwYXRjaGVz LiBMZXQgbWUKa25vdyBpZiB0aGUgY3VycmVudCB2ZXJzaW9uIGlzIE9LIHdpdGggeW91LiBJIGhv cGUgSSBkaWQgdGhlIG9yZGVyIG9mClNvQiBjb3JyZWN0bHkgKEkga25vdyB0aGF0IEtyenlzenRv ZiBoYXMgcG9pbnRlZCB0aGlzIG91dCBsYXRlbHkpLgoKLSBUb2JpYXMKCgo+IAo+IFRoYW5rcy4K PiAtLQo+IFRvIHVuc3Vic2NyaWJlIGZyb20gdGhpcyBsaXN0OiBzZW5kIHRoZSBsaW5lICJ1bnN1 YnNjcmliZSBsaW51eC1zYW1zdW5nLXNvYyIgaW4KPiB0aGUgYm9keSBvZiBhIG1lc3NhZ2UgdG8g bWFqb3Jkb21vQHZnZXIua2VybmVsLm9yZwo+IE1vcmUgbWFqb3Jkb21vIGluZm8gYXQgIGh0dHA6 Ly92Z2VyLmtlcm5lbC5vcmcvbWFqb3Jkb21vLWluZm8uaHRtbAo+IAoKX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KZHJpLWRldmVsIG1haWxpbmcgbGlzdApk cmktZGV2ZWxAbGlzdHMuZnJlZWRlc2t0b3Aub3JnCmh0dHBzOi8vbGlzdHMuZnJlZWRlc2t0b3Au b3JnL21haWxtYW4vbGlzdGluZm8vZHJpLWRldmVsCg==