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[198.145.64.163]) by smtp.gmail.com with ESMTPSA id a9sm6938080pfr.103.2020.07.24.10.33.50 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 24 Jul 2020 10:33:50 -0700 (PDT) Date: Fri, 24 Jul 2020 10:33:49 -0700 From: Kees Cook To: Paul Menzel Subject: Re: [PATCH] amdgpu_dm: fix nonblocking atomic commit use-after-free Message-ID: <202007241016.922B094AAA@keescook> References: <202007231524.A24720C@keescook> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: anthony.ruhier@gmail.com, 1i5t5.duncan@cox.net, sunpeng.li@amd.com, Mazin Rezk , linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, Nicholas Kazlauskas , regressions@leemhuis.info, amd-gfx@lists.freedesktop.org, Alexander Deucher , Andrew Morton , mphantomx@yahoo.com.br, Christian =?iso-8859-1?Q?K=F6nig?= Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" T24gRnJpLCBKdWwgMjQsIDIwMjAgYXQgMDk6NDU6MThBTSArMDIwMCwgUGF1bCBNZW56ZWwgd3Jv dGU6Cj4gQW0gMjQuMDcuMjAgdW0gMDA6MzIgc2NocmllYiBLZWVzIENvb2s6Cj4gPiBPbiBUaHUs IEp1bCAyMywgMjAyMCBhdCAwOToxMDoxNVBNICswMDAwLCBNYXppbiBSZXprIHdyb3RlOgo+IEFz IExpbnV4IDUuOC1yYzcgaXMgZ29pbmcgdG8gYmUgcmVsZWFzZWQgdGhpcyBTdW5kYXksIEkgd29u ZGVyLCBpZiBjb21taXQKPiAzMjAyZmE2MmYgKCJzbHViOiByZWxvY2F0ZSBmcmVlbGlzdCBwb2lu dGVyIHRvIG1pZGRsZSBvZiBvYmplY3QiKSBzaG91bGQgYmUKPiByZXZlcnRlZCBmb3Igbm93IHRv IGZpeCB0aGUgcmVncmVzc2lvbiBmb3IgdGhlIHVzZXJzIGFjY29yZGluZyB0byBMaW51eOKAmSBu bwo+IHJlZ3Jlc3Npb24gcG9saWN5LiBPbmNlIHRoZSBBTURHUFUvRFJNIGRyaXZlciBpc3N1ZSBp cyBmaXhlZCwgaXQgY2FuIGJlCj4gcmVhcHBsaWVkLiBJIGtub3cgaXTigJlzIG5vdCBvcHRpbWFs LCBidXQgYXMgc29tZSB0ZXN0aW5nIGlzIGdvaW5nIHRvIGJlCj4gaW52b2x2ZWQgZm9yIHRoZSBm aXgsIEnigJlkIGFyZ3VlIGl04oCZcyB0aGUgYmVzdCBvcHRpb24gZm9yIHRoZSB1c2Vycy4KCldl bGwsIHRoZSBTTFVCIGRlZmVuc2Ugd2FzIGFscmVhZHkgcmVsZWFzZWQgaW4gdjUuNywgc28gSSdt IG5vdCBzdXJlIGl0CnJlYWxseSBoZWxwcyBmb3IgYW1kZ3B1X2RtIHVzZXJzIHNlZWluZyBpdCB0 aGVyZSB0b28uIFRoZXJlIHdhcyBhIGZpeCB0bwpkaXNhYmxlIHRoZSBhc3luYyBwYXRoIGZvciB0 aGlzIGRyaXZlciB0aGF0IHdvcmtlZCBhcm91bmQgdGhlIGJ1ZyB0b28sCnllcz8gVGhhdCBzZWVt cyBsaWtlIGEgc2FmZXIgYW5kIG1vcmUgZm9jdXNlZCBjaGFuZ2UgdGhhdCBkb2Vzbid0IHJldmVy dAp0aGUgU0xVQiBkZWZlbnNlIGZvciBhbGwgdXNlcnMsIGFuZCB3b3VsZCBhY3R1YWxseSBwcm92 aWRlIGEgY29tcGxldGUsCkkgdGhpbmssIHdvcmthcm91bmQgd2hlcmVhcyByZXZlcnRpbmcgdGhl IFNMVUIgY2hhbmdlIG1lYW5zIHRoZSByYWNlCnN0aWxsIGV4aXN0cy4gRm9yIGV4YW1wbGUsIGl0 IHdvdWxkIGJlIGhpdCB3aXRoIHNsYWIgcG9pc29uaW5nLCBldGMuCgotLSAKS2VlcyBDb29rCl9f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fCmRyaS1kZXZlbCBt YWlsaW5nIGxpc3QKZHJpLWRldmVsQGxpc3RzLmZyZWVkZXNrdG9wLm9yZwpodHRwczovL2xpc3Rz LmZyZWVkZXNrdG9wLm9yZy9tYWlsbWFuL2xpc3RpbmZvL2RyaS1kZXZlbAo=