From: Michael Niedermayer <michael@niedermayer.cc> To: FFmpeg development discussions and patches <ffmpeg-devel@ffmpeg.org> Subject: [FFmpeg-devel] [PATCH 3/4] avcodec/cbs_h266_syntax_template: Check tile_y Date: Thu, 21 Mar 2024 02:15:16 +0100 Message-ID: <20240321011517.10363-3-michael@niedermayer.cc> (raw) In-Reply-To: <20240321011517.10363-1-michael@niedermayer.cc> Fixes: out of array access Fixes: 67021/clusterfuzz-testcase-minimized-ffmpeg_DEMUXER_fuzzer-4883576579489792 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <michael@niedermayer.cc> --- libavcodec/cbs_h266_syntax_template.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/libavcodec/cbs_h266_syntax_template.c b/libavcodec/cbs_h266_syntax_template.c index 49fb12ba77..0aae9fdfd5 100644 --- a/libavcodec/cbs_h266_syntax_template.c +++ b/libavcodec/cbs_h266_syntax_template.c @@ -2072,6 +2072,8 @@ static int FUNC(pps) (CodedBitstreamContext *ctx, RWContext *rw, tile_x = tile_idx % current->num_tile_columns; tile_y = tile_idx / current->num_tile_columns; + if (tile_y >= current->num_tile_rows) + return AVERROR_INVALIDDATA; ctu_x = 0, ctu_y = 0; for (j = 0; j < tile_x; j++) { -- 2.17.1 _______________________________________________ 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".
next prev parent reply other threads:[~2024-03-21 1:15 UTC|newest] Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top 2024-03-21 1:15 [FFmpeg-devel] [PATCH 1/4] avcodec/mscc: move frame allocates to later Michael Niedermayer 2024-03-21 1:15 ` [FFmpeg-devel] [PATCH 2/4] avformat/iamf_reader: return REDO on failure to read Michael Niedermayer 2024-03-21 2:22 ` James Almer 2024-03-21 3:51 ` Michael Niedermayer 2024-03-21 1:15 ` Michael Niedermayer [this message] 2024-03-23 15:04 ` [FFmpeg-devel] [PATCH 3/4] avcodec/cbs_h266_syntax_template: Check tile_y Nuo Mi 2024-03-21 1:15 ` [FFmpeg-devel] [PATCH 4/4] avformat/iamf: Check language_label Michael Niedermayer 2024-03-21 2:17 ` James Almer 2024-03-21 3:55 ` Michael Niedermayer 2024-04-01 1:05 ` Michael Niedermayer
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