From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from ffbox0-bg.ffmpeg.org (ffbox0-bg.ffmpeg.org [79.124.17.100]) by master.gitmailbox.com (Postfix) with ESMTPS id 84A9E4CCEA for ; Fri, 8 Aug 2025 23:10:02 +0000 (UTC) Received: from [127.0.1.1] (localhost [127.0.0.1]) by ffbox0-bg.ffmpeg.org (Postfix) with ESMTP id 9741368CD06; Sat, 9 Aug 2025 02:09:57 +0300 (EEST) Received: from relay15.mail.gandi.net (relay15.mail.gandi.net [217.70.178.235]) by ffbox0-bg.ffmpeg.org (Postfix) with ESMTPS id 37226687BA9 for ; Sat, 9 Aug 2025 02:09:51 +0300 (EEST) Received: by mail.gandi.net (Postfix) with ESMTPSA id 98D9443146 for ; Fri, 8 Aug 2025 23:09:49 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=niedermayer.cc; s=gm1; t=1754694589; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type; bh=zVFd32XtY/SD85m77A07j/7zaMyPHQeabrSDY8f8t9E=; b=WVo9UPK1a2mFvE5Gi+M7Z4aDWm6MiyO0y1Wmcd9M87bZ1fovQqzknqIdgCpZexUm+GEVSd wkFlA4SKtTGMicBiwJRCSGhha+ZRuzUCqeWeq3oMdNx+cmGxrsodrvORQlPguDt+Y82wbk NBI4yg/nSTonpkMdoXDhQhtmXjpb8mnkm7q62LgBAQgCVKl+7T+CNjtmav0OVb6bV3aRgd m5uu+vK1FyfWdrSWbPAM6+lSH5t7B7Yqy27LbvK/1I0bU6n1549M+FcBQY1La9fhLx2wIz SLGG5xViubrUT1vjDo4xHuUXlJxoWT2Cl551bTH95Cmso0WZgDZgq5rJRL3MbA== Date: Sat, 9 Aug 2025 01:09:48 +0200 From: Michael Niedermayer To: FFmpeg development discussions and patches Message-ID: <20250808230948.GP29660@pb2> MIME-Version: 1.0 X-GND-State: clean X-GND-Score: -85 X-GND-Cause: gggruggvucftvghtrhhoucdtuddrgeeffedrtdefgdduvdehtdelucetufdoteggodetrfdotffvucfrrhhofhhilhgvmecuifetpfffkfdpucggtfgfnhhsuhgsshgtrhhisggvnecuuegrihhlohhuthemuceftddunecusecvtfgvtghiphhivghnthhsucdlqddutddtmdenfghrlhcuvffnffculdduhedmnecujfgurhepfffhvffukfggtggusehgtderredttddvnecuhfhrohhmpefoihgthhgrvghlucfpihgvuggvrhhmrgihvghruceomhhitghhrggvlhesnhhivgguvghrmhgrhigvrhdrtggtqeenucggtffrrghtthgvrhhnpeetteehgfdttdffieevueefvedtffeiiefhtdefheeifeeufeeifedvheehieelheenucffohhmrghinhepghhithhhuhgsrdgtohhmnecukfhppeeguddrieeirdeihedrudejieenucevlhhushhtvghrufhiiigvpedtnecurfgrrhgrmhepihhnvghtpeeguddrieeirdeihedrudejiedphhgvlhhopehlohgtrghlhhhoshhtpdhmrghilhhfrhhomhepmhhitghhrggvlhesnhhivgguvghrmhgrhigvrhdrtggtpdhnsggprhgtphhtthhopedupdhrtghpthhtohepfhhfmhhpvghgqdguvghvvghlsehffhhmphgvghdrohhrgh Subject: [FFmpeg-devel] rebase bugs? 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: multipart/mixed; boundary="===============7416298155186979799==" Errors-To: ffmpeg-devel-bounces@ffmpeg.org Sender: "ffmpeg-devel" Archived-At: List-Archive: List-Post: --===============7416298155186979799== Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="CImbdSLUINN06SUF" Content-Disposition: inline --CImbdSLUINN06SUF Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Hi all it didnt take long for something interresting to happen: Heres my local pr/20134 git log origin/master..fforge/pr/20134 --oneline a99fa230adb (fforge/pr/20134, fforge-michaelni/ff-tmp-uninit-ut-vlc-ffv1) a= vcodec/ffv1: Clear state on alloc 006125030a0 avcodec/utvideodec: Set B for the width=3D 1 case also git log --grep "Set B for" fforge/pr/20134 --oneline 006125030a0 avcodec/utvideodec: Set B for the width=3D 1 case git log --grep "Clear state on alloc" fforge/pr/20134 --oneline a99fa230adb (fforge/pr/20134, fforge-michaelni/ff-tmp-uninit-ut-vlc-ffv1) a= vcodec/ffv1: Clear state on alloc so far so good explain this: git log --grep "Set B for" origin/master --oneline 27a541bb4cc avcodec/utvideodec: Set B for the width=3D 1 case 032dfe8584c avcodec/utvideodec: Set B for the width=3D 1 case git log --grep "Clear state on alloc" origin/master --oneline 85a2beaa811 avcodec/ffv1: Clear state on alloc 70fc46d1856 avcodec/ffv1: Clear state on alloc also not signed, not even with forgejos key: git log --show-signature --grep "Clear state on alloc" origin/master --pr= etty=3Dfuller commit 85a2beaa811cda7ddfb1f5be133268e364395f0e Author: Michael Niedermayer AuthorDate: Wed Aug 6 13:36:06 2025 +0200 Commit: michaelni CommitDate: Thu Aug 7 19:45:04 2025 +0000 avcodec/ffv1: Clear state on alloc Fixes: use of uninitialized memory Fixes: 428969823/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_FFV1= _DEC_fuzzer-5909681623334912 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz= /tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer commit 70fc46d185663dbea0995bf868d66b58b388119e Author: Michael Niedermayer AuthorDate: Wed Aug 6 13:36:06 2025 +0200 Commit: michaelni CommitDate: Thu Aug 7 19:44:59 2025 +0000 avcodec/ffv1: Clear state on alloc Fixes: use of uninitialized memory Fixes: 428969823/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_FFV1= _DEC_fuzzer-5909681623334912 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz= /tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer --=20 Michael GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB No snowflake in an avalanche ever feels responsible. -- Voltaire --CImbdSLUINN06SUF Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iF0EABEKAB0WIQSf8hKLFH72cwut8TNhHseHBAsPqwUCaJaDuAAKCRBhHseHBAsP q3YhAJsG+7iEedYOQpRcVEkfbMXY/EMp/gCeN/MZfL67fAG/Sef4NEQeiwHSd18= =bUwa -----END PGP SIGNATURE----- --CImbdSLUINN06SUF-- --===============7416298155186979799== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-request@ffmpeg.org with subject "unsubscribe". --===============7416298155186979799==--