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Sun, 12 Mar 2023 09:30:55 +0100 (CET) Received: by lain.khirnov.net (Postfix, from userid 1000) id 5C35B1601B2; Sun, 12 Mar 2023 09:30:55 +0100 (CET) From: Anton Khirnov To: 'FFmpeg development discussions and patches' In-Reply-To: References: <20230310134547.16970-1-anton@khirnov.net> <167853104803.10789.2096383751650507567@lain.khirnov.net> Mail-Followup-To: 'FFmpeg development discussions and patches' Date: Sun, 12 Mar 2023 09:30:55 +0100 Message-ID: <167860985534.10789.18029102096385713946@lain.khirnov.net> User-Agent: alot/0.8.1 MIME-Version: 1.0 Subject: Re: [FFmpeg-devel] [PATCH] fftools/ffmpeg_mux_init: avoid invalid reads in forced keyframe parsing X-BeenThere: ffmpeg-devel@ffmpeg.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: FFmpeg development discussions and patches List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: FFmpeg development discussions and patches Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Errors-To: ffmpeg-devel-bounces@ffmpeg.org Sender: "ffmpeg-devel" Archived-At: List-Archive: List-Post: UXVvdGluZyBaaGFvIFpoaWxpICgyMDIzLTAzLTExIDEyOjQ1OjMwKQo+IAo+IAo+ID4gLS0tLS1P cmlnaW5hbCBNZXNzYWdlLS0tLS0KPiA+IEZyb206IGZmbXBlZy1kZXZlbCA8ZmZtcGVnLWRldmVs LWJvdW5jZXNAZmZtcGVnLm9yZz4gT24gQmVoYWxmIE9mIEFudG9uIEtoaXJub3YKPiA+IFNlbnQ6 IDIwMjPlubQz5pyIMTHml6UgMTg6MzcKPiA+IFRvOiAnRkZtcGVnIGRldmVsb3BtZW50IGRpc2N1 c3Npb25zIGFuZCBwYXRjaGVzJyA8ZmZtcGVnLWRldmVsQGZmbXBlZy5vcmc+Cj4gPiBTdWJqZWN0 OiBSZTogW0ZGbXBlZy1kZXZlbF0gW1BBVENIXSBmZnRvb2xzL2ZmbXBlZ19tdXhfaW5pdDogYXZv aWQgaW52YWxpZCByZWFkcyBpbiBmb3JjZWQga2V5ZnJhbWUgcGFyc2luZwo+ID4gCj4gPiBRdW90 aW5nIFpoYW8gWmhpbGkgKDIwMjMtMDMtMTAgMTU6NDQ6NTYpCj4gPiA+Cj4gPiA+ID4gRnJvbTog ZmZtcGVnLWRldmVsIDxmZm1wZWctZGV2ZWwtYm91bmNlc0BmZm1wZWcub3JnPiBPbiBCZWhhbGYg T2YgQW50b24gS2hpcm5vdgo+ID4gPiA+IFNlbnQ6IDIwMjPlubQz5pyIMTDml6UgMjE6NDYKPiA+ ID4gPiBUbzogZmZtcGVnLWRldmVsQGZmbXBlZy5vcmcKPiA+ID4gPiBTdWJqZWN0OiBbRkZtcGVn LWRldmVsXSBbUEFUQ0hdIGZmdG9vbHMvZmZtcGVnX211eF9pbml0OiBhdm9pZCBpbnZhbGlkIHJl YWRzIGluIGZvcmNlZCBrZXlmcmFtZSBwYXJzaW5nCj4gPiA+ID4KPiA+ID4gPiBGaXhlcyAjMTAy NDMKPiA+ID4gPiAtLS0KPiA+ID4gPiAgZmZ0b29scy9mZm1wZWdfbXV4X2luaXQuYyB8IDIgKy0K PiA+ID4gPiAgMSBmaWxlIGNoYW5nZWQsIDEgaW5zZXJ0aW9uKCspLCAxIGRlbGV0aW9uKC0pCj4g PiA+ID4KPiA+ID4gPiBkaWZmIC0tZ2l0IGEvZmZ0b29scy9mZm1wZWdfbXV4X2luaXQuYyBiL2Zm dG9vbHMvZmZtcGVnX211eF9pbml0LmMKPiA+ID4gPiBpbmRleCBiM2NjNTAyZmRkLi4wOWQyNGJh OGU1IDEwMDY0NAo+ID4gPiA+IC0tLSBhL2ZmdG9vbHMvZmZtcGVnX211eF9pbml0LmMKPiA+ID4g PiArKysgYi9mZnRvb2xzL2ZmbXBlZ19tdXhfaW5pdC5jCj4gPiA+ID4gQEAgLTIwNjMsNyArMjA2 Myw3IEBAIHN0YXRpYyB2b2lkIHBhcnNlX2ZvcmNlZF9rZXlfZnJhbWVzKEtleWZyYW1lRm9yY2VD dHggKmtmLCBjb25zdCBNdXhlciAqbXV4LAo+ID4gPiA+ICAgICAgICAgIGlmIChuZXh0KQo+ID4g PiA+ICAgICAgICAgICAgICAqbmV4dCsrID0gMDsKPiA+ID4gPgo+ID4gPiA+IC0gICAgICAgIGlm ICghbWVtY21wKHAsICJjaGFwdGVycyIsIDgpKSB7Cj4gPiA+ID4gKyAgICAgICAgaWYgKHN0cnN0 cihwLCAiY2hhcHRlcnMiKSA9PSBwKSB7Cj4gPiA+Cj4gPiA+IERvZXMgc3RybmNtcCgpIG1vcmUg ZWZmaWNpZW50IGluIHRoaXMgY2FzZT8KPiA+IAo+ID4gSSBkb24ndCBzZWUgdGhlIHBvaW50IG9m IG9wdGltaXppbmcgdGhpcyBjb2RlIGZvciBzcGVlZC4gQSBzdHJuY21wIGNhbGwKPiA+IGlzIGxv bmdlciBhbmQgbGVzcyByZWFkYWJsZSBJTU8uCj4gCj4gVGhpcyBpcyBhIGNhc2UgZm9yIHRoZSBu ZWVkIG9mIGEgc3Ryc3RhcnRzKCkuIHN0cm5jbXAgaXMgbW9yZSBpbnR1aXRpdmUgdGhhbiBzdHJz dHIoKQo+IGZvciB0aGlzIGpvYi4KClllcywgaGF2aW5nIGEgInN0cmluZyBzdGFydHMgd2l0aCIg ZnVuY3Rpb24gaW4gc3RkbGliIHdvdWxkIGhhdmUgYmVlbgpuaWNlLiBCdXQgYXMgaXQncyBub3Qg dGhlcmUsIHdlIGhhdmUgdG8gbWFrZSBkbyB3aXRoIHdoYXQgd2UgaGF2ZS4KCi0tIApBbnRvbiBL aGlybm92Cl9fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fCmZm bXBlZy1kZXZlbCBtYWlsaW5nIGxpc3QKZmZtcGVnLWRldmVsQGZmbXBlZy5vcmcKaHR0cHM6Ly9m Zm1wZWcub3JnL21haWxtYW4vbGlzdGluZm8vZmZtcGVnLWRldmVsCgpUbyB1bnN1YnNjcmliZSwg dmlzaXQgbGluayBhYm92ZSwgb3IgZW1haWwKZmZtcGVnLWRldmVsLXJlcXVlc3RAZmZtcGVnLm9y ZyB3aXRoIHN1YmplY3QgInVuc3Vic2NyaWJlIi4K