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 834C54EA45 for ; Tue, 10 Feb 2026 23:51:17 +0000 (UTC) Authentication-Results: ffbox; dkim=fail (body hash mismatch (got b'/Uy/7y42Mgz89GgWgb+jdUNE7i3QnaLEuIF66ST9UWc=', expected b'8TMAEcw5u/11OgAfCY5zNa0hYXWXy2tqQgQEpddQpWw=')) header.d=ffmpeg.org header.i=@ffmpeg.org header.a=rsa-sha256 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=ffmpeg.org; i=@ffmpeg.org; q=dns/txt; s=mail; t=1770767452; h=mime-version : to : date : message-id : reply-to : subject : list-id : list-archive : list-archive : list-help : list-owner : list-post : list-subscribe : list-unsubscribe : from : cc : content-type : content-transfer-encoding : from; bh=/Uy/7y42Mgz89GgWgb+jdUNE7i3QnaLEuIF66ST9UWc=; b=jNKATdCwcoj97jXoq8tKAszNEi36Xq7zx3GK1f2RuY4gv3USFJBvO2tzoiBrPFfQ5spvP GMZ6X859mb8v/1YJ7+4rhM9/vTEIpUmAD4aCu+h7lRfMoKacnsJyAGrks12yOdYDDcRvGcM zG++Hb9j39odyPqvlas4JHEstpKmstvLEDVY2o1psAHDxJ4F9xrE+h26ReQvBNLSYSHhXf1 4vRc7gAlmn3Gra3lhg06Jjujsy1hdlnbOrzeis7BrOOy+8qpi+9ccTsgA45/o1DU0UX60s5 xfASKZu8znsUd+LXeaFsxGlsdn/h54y7WLq8jbX8y/nyYWkPqBS3xbDEdYhA== Received: from [172.20.0.3] (unknown [172.20.0.3]) by ffbox0-bg.ffmpeg.org (Postfix) with ESMTP id A747269174F; Wed, 11 Feb 2026 01:50:52 +0200 (EET) ARC-Seal: i=1; cv=none; a=rsa-sha256; d=ffmpeg.org; s=arc; t=1770767449; b=ms2VV3mafWPO5SxteQPg3DIO4T00M5VBIL0H45OmB4Mcte4zDLGb0MwU1+aSXSJIiYb67 bvNzC3dNRAWT5aS4KYZUdvddWhMHq/a2bi9w25i9agpxrxeM5gKPFbl3vMBaq2vIkEy3lDg LFOPGKRGThRCxbe0UL8LfkCYhTKUO6dr3dgbXleAsCiVRHgU5praKrl2/0kcCr6U4HECLf2 bbXyJ7lh3n9vga9hU6ctQ7XEGFJRI+THpje+9e4yq5N3AaYiVsiU5EQmMZNxAKlQKUH8ZF7 mADh/p/l545/xKDjOr1brGM4OVCoKjJQ6gDH5r9ynb2NMOSONPPv4ItaP26w== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=ffmpeg.org; s=arc; t=1770767449; h=from : sender : reply-to : subject : date : message-id : to : cc : mime-version : content-type : content-transfer-encoding : content-id : content-description : resent-date : resent-from : resent-sender : resent-to : resent-cc : resent-message-id : in-reply-to : references : list-id : list-help : list-unsubscribe : list-subscribe : list-post : list-owner : list-archive; bh=71JSAjnCJJ69gwRMw020ofrY1Dz3Y+W5nAgOPmsWBKg=; b=Q5u+SvGyqVa8ju1q9RqYH43MBWqgMnomctSwrFIZoAUbXRufAl5NE/eQ2sMH2RVI/FcqU rlvws51bMdv2SBdXXe2cNZbf3pa1zU/njISgz1qQFtt3ptF5vetyGj9CEAptJpC3+f1UEBb gfSdHcwpjzkeYPJ3MsuPTUNU5+cYARPNDN3YoA8D2X+DKzA2zsf/FfQ42Dy3BJJVa9GNupK yBf/BIHy0dY1AZBNjPODJeyyLLN2/z2c9rPiiEoniTvZ9oUlo/W5niAAS3Mlw5MzyUTWpuB YIxPJfXu39Lfxi7GGhqcDAT4KjtuV+qxWyiPf+GgfSW+2UtURBlVBBPK4ihQ== ARC-Authentication-Results: i=1; ffmpeg.org; dkim=pass header.d=ffmpeg.org header.i=@ffmpeg.org; arc=none; dmarc=pass header.from=ffmpeg.org policy.dmarc=quarantine Authentication-Results: ffmpeg.org; dkim=pass header.d=ffmpeg.org header.i=@ffmpeg.org; arc=none (Message is not ARC signed); dmarc=pass (Used From Domain Record) header.from=ffmpeg.org policy.dmarc=quarantine DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=ffmpeg.org; i=@ffmpeg.org; q=dns/txt; s=mail; t=1770767081; h=content-type : mime-version : content-transfer-encoding : from : to : reply-to : subject : date : from; bh=8TMAEcw5u/11OgAfCY5zNa0hYXWXy2tqQgQEpddQpWw=; b=1fB1esE7X6G4+5FyG5F6otfUzeCUL1/i8UgEXK6SNuwFVvBYc5cf2tf9gkEI9P8xYSG0R uvHGamLAx++8xFZ4djhLaZ1Mki78P2J7vDltpgMq8DwnPJ+mvXBro49Wvc49Y06jejFSXoj pNRwWXlN0gvhInRkOOMwv0eO1ySqpLR+IDkVDcl9ziSegtv9jnwj4YSDLaKnF+WuTxLEbn4 Qq0Ry5r4e0bHozsdvsTbot8NFVHvZbdihsSNRl9C1i+571+uLiquuSZUUeXk0rvTvaOIccU Wbw34AfLh6/IyD6UwyWHIzRw5jd4dAruCDdWaqNCs1QrgSDILH9ux6vk8MsA== Received: from c8d966988b92 (code.ffmpeg.org [188.245.149.3]) by ffbox0-bg.ffmpeg.org (Postfix) with ESMTPS id DFF65691575 for ; Wed, 11 Feb 2026 01:44:40 +0200 (EET) MIME-Version: 1.0 To: ffmpeg-devel@ffmpeg.org Date: Tue, 10 Feb 2026 23:44:40 -0000 Message-ID: <177076738183.25.13428211243205095664@009cbcb3d8cd> Message-ID-Hash: VU33OY4352AVKJKBZQKUQHO7SV7QRJKM X-Message-ID-Hash: VU33OY4352AVKJKBZQKUQHO7SV7QRJKM X-MailFrom: code@ffmpeg.org X-Mailman-Rule-Hits: nonmember-moderation X-Mailman-Rule-Misses: dmarc-mitigation; no-senders; approved; loop; banned-address; header-match-ffmpeg-devel.ffmpeg.org-0; header-match-ffmpeg-devel.ffmpeg.org-1; header-match-ffmpeg-devel.ffmpeg.org-2; header-match-ffmpeg-devel.ffmpeg.org-3; emergency; member-moderation X-Mailman-Version: 3.3.10 Precedence: list Reply-To: FFmpeg development discussions and patches Subject: [FFmpeg-devel] [PR] avformat/dhav: Check avio_seek() return (PR #21721) List-Id: FFmpeg development discussions and patches Archived-At: Archived-At: List-Archive: List-Archive: List-Help: List-Owner: List-Post: List-Subscribe: List-Unsubscribe: From: michaelni via ffmpeg-devel Cc: michaelni Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Archived-At: List-Archive: List-Post: PR #21721 opened by michaelni URL: https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/21721 Patch URL: https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/21721.patch Fixes: infinite loop Fixes: 472567148/clusterfuzz-testcase-minimized-ffmpeg_dem_DHAV_fuzzer-4520943574908928 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer >>From e11ee75d8e8d5887b5ecb38cf1086650eb0a2a96 Mon Sep 17 00:00:00 2001 From: Michael Niedermayer Date: Tue, 10 Feb 2026 17:44:52 +0100 Subject: [PATCH] avformat/dhav: Check avio_seek() return Fixes: infinite loop Fixes: 472567148/clusterfuzz-testcase-minimized-ffmpeg_dem_DHAV_fuzzer-4520943574908928 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer --- libavformat/dhav.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/libavformat/dhav.c b/libavformat/dhav.c index 614934dc68..c276de106c 100644 --- a/libavformat/dhav.c +++ b/libavformat/dhav.c @@ -321,7 +321,9 @@ static int dhav_read_header(AVFormatContext *s) if (seek_back < 9) break; dhav->last_good_pos = avio_tell(s->pb); - avio_seek(s->pb, -seek_back, SEEK_CUR); + int64_t ret = avio_seek(s->pb, -seek_back, SEEK_CUR); + if (ret < 0) + return ret; } avio_seek(s->pb, dhav->last_good_pos, SEEK_SET); } -- 2.52.0 _______________________________________________ ffmpeg-devel mailing list -- ffmpeg-devel@ffmpeg.org To unsubscribe send an email to ffmpeg-devel-leave@ffmpeg.org