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 734774EEBC for ; Thu, 19 Feb 2026 02:30:10 +0000 (UTC) Authentication-Results: ffbox; dkim=fail (body hash mismatch (got b'2hqdolHDWzafinEKQbxGlw7gAE6mglL8UcIuuz0xhNQ=', expected b'mAiu6LhrO+aCBpdToZkqpPBSmGsx8c7T7kDMAfIIAeE=')) 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=1771468204; 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=2hqdolHDWzafinEKQbxGlw7gAE6mglL8UcIuuz0xhNQ=; b=Th9jeY83EA3qBJKAeyalBCaYeCoHYynRwvMtDkC6xOxganovoL1KjiE3IZBKV2gltoKK5 9ag349iGMLlsE9XVXvxOylplSyRI4++Xsd9Iday2S5Z6gPL+bTfo49w3mfUFCr6J3ksPpRk j8DDxfZXU9GX2JQ0lDaLn8KSHgeN+3yjx4FDniZlB11x/O3RJZbpQhO5FpyIxlfAWfxgPiN kBi2LE4u05t/pMu9KdNm5+xYgpPfou+m8s7NSabbwPJ8iLNi7xQaHEHVpQqvDrE9iipU48P PByK72PF4i7OAAeRC3zdkUNydNMrHpI6Pe917qSKC3H0yz58fdyXjuD8EkEg== Received: from [172.18.0.3] (unknown [172.18.0.3]) by ffbox0-bg.ffmpeg.org (Postfix) with ESMTP id 10E2169127E; Thu, 19 Feb 2026 04:30:04 +0200 (EET) ARC-Seal: i=1; cv=none; a=rsa-sha256; d=ffmpeg.org; s=arc; t=1771468191; b=rK8kRR3ULcSSJXcWuJnp5Jo6Nlyh7rFrkJeul6+atQzQ1FzSsauBfQaEWzvBcjPmkHAOU Ehp/5YMAghnlhSNsbfirAUO9Mv1g82GgI9qrhLt3iSigasl3wUM/uc/4puHJi5XCir2A+DE bpClJopdY8EaLPIGMnLNGkmZsBJO/2kmYbOQRyH3Y86AUymMkWe5tN7W0PPYjdguYxXRDTH 5UgT1ZSqTVzvkui2kzBMMzkVZ39iTLIBoLSjE6MLGYnl/1slCeqQ94JBhRYwlNqKk2Xy1Lb 7s+iY737noBonhaxeYFs1mvYR2P5Bcnd5YNSGCWIBGNQEHPerSNUkICPmILQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=ffmpeg.org; s=arc; t=1771468191; 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=7S88nbNfky6tY7QmXAt7AvB/BNXqsnGikSdESzKw0so=; b=DWPC1z6FOabHbGadfqZSr8AFaSylsdSERiFdpnwNBWbZGCPG1ewrM9PqpxyvNFbbH0qN2 N1JLj3ej5TNZ4cJP+XjEEoKMIGlm4KWPtkWwP5ynTZ+dp/bKPyLFHQTQ9wPdWhx4EFLrfLU jiPK4AX/AhnHro8ypfFA+0WxN0FwRBK+k+Y99X7n4jM+rZ+5imOrPf+Tb6hxKgE3x9tuHq6 3HKmneajgfLlzkUG1jb2BpotCOKifM0uep64/S6s0UKoIjXB038DXGq+ndN+mdI+ihhlphp 0KK1qwCu0QcdTtkbfAhupkRobCHHGFKX+MwmgCm18jQXO7UpWIXTs9LjBLzQ== 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=1771468183; h=content-type : mime-version : content-transfer-encoding : from : to : reply-to : subject : date : from; bh=mAiu6LhrO+aCBpdToZkqpPBSmGsx8c7T7kDMAfIIAeE=; b=jr02OeNTAStcH70Fxd8SwuD9MStrtQO5gMg73hGEhNHuV5EtslQ2dJNhY0Os/LZtQdLXh 2Qw2kdzIRtMV7Fma/lPKPU7bvNe6Z8qMHV9sTuh3u9gosuRKcwX+D/IaRpiXvzgbAZs+eik DzJ0n82V4RnVn1UECKY7eXWRenG/K9e/CkDUPg091h8uJdkC4Xm1iLtkdV1U4SgvgXg1/Cn 9Mj4PEGkjdPzp4eP+q8w3DACwsrCFOAyVfERfmN/oPHOlrWkLrmv3hKBfptzK3zQ0NduCkA aTS1iND4W8ddzY/ghWkR1klZHQjYETPYkrmIOfpr7AFVffVf3lh8l55Lh3fg== MIME-Version: 1.0 To: ffmpeg-devel@ffmpeg.org Date: Thu, 19 Feb 2026 02:29:42 -0000 Message-ID: <177146818330.25.345762044618347863@29965ddac10e> Message-ID-Hash: SQRF5XXK2P55Y5EVD6OPQJU45TWZQNHA X-Message-ID-Hash: SQRF5XXK2P55Y5EVD6OPQJU45TWZQNHA 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] avcodec/cbs_h266_syntax_template: Bound num_tile_columns/rows (PR #21791) 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 #21791 opened by michaelni URL: https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/21791 Patch URL: https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/21791.patch Fixes: out of array access Fixes: crash_vvc_heap_oob_read.bin Found-by: akshay jain Signed-off-by: Michael Niedermayer >>From a832972cf624278bd31d4bb31d54492ae6514b7d Mon Sep 17 00:00:00 2001 From: Michael Niedermayer Date: Thu, 19 Feb 2026 00:30:54 +0100 Subject: [PATCH] avcodec/cbs_h266_syntax_template: Bound num_tile_columns/rows Fixes: out of array access Fixes: crash_vvc_heap_oob_read.bin Found-by: akshay jain Signed-off-by: Michael Niedermayer --- libavcodec/cbs_h266_syntax_template.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/libavcodec/cbs_h266_syntax_template.c b/libavcodec/cbs_h266_syntax_template.c index 4f6ae76e27..4fc82704d1 100644 --- a/libavcodec/cbs_h266_syntax_template.c +++ b/libavcodec/cbs_h266_syntax_template.c @@ -1973,14 +1973,14 @@ static int FUNC(pps) (CodedBitstreamContext *ctx, RWContext *rw, tile_y = tile_idx / current->num_tile_columns; if (tile_x != current->num_tile_columns - 1) { ues(pps_slice_width_in_tiles_minus1[i], - 0, current->num_tile_columns - 1, 1, i); + 0, current->num_tile_columns - 1 - tile_x, 1, i); } else { infer(pps_slice_width_in_tiles_minus1[i], 0); } if (tile_y != current->num_tile_rows - 1 && (current->pps_tile_idx_delta_present_flag || tile_x == 0)) { ues(pps_slice_height_in_tiles_minus1[i], - 0, current->num_tile_rows - 1, 1, i); + 0, current->num_tile_rows - 1 - tile_y, 1, i); } else { if (tile_y == current->num_tile_rows - 1) infer(pps_slice_height_in_tiles_minus1[i], 0); -- 2.52.0 _______________________________________________ ffmpeg-devel mailing list -- ffmpeg-devel@ffmpeg.org To unsubscribe send an email to ffmpeg-devel-leave@ffmpeg.org