From: Michael Niedermayer <michael@niedermayer.cc>
To: FFmpeg development discussions and patches <ffmpeg-devel@ffmpeg.org>
Subject: [FFmpeg-devel] [PATCH 3/3] avformat/flvdec: Check for EOF in index reading
Date: Tue, 12 Jul 2022 20:43:22 +0200
Message-ID: <20220712184322.22814-3-michael@niedermayer.cc> (raw)
In-Reply-To: <20220712184322.22814-1-michael@niedermayer.cc>
Fixes: Timeout
Fixes: 47992/clusterfuzz-testcase-minimized-ffmpeg_dem_LIVE_FLV_fuzzer-6020443879899136
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
---
libavformat/flvdec.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/libavformat/flvdec.c b/libavformat/flvdec.c
index c5d3c63bd0..8dba92661b 100644
--- a/libavformat/flvdec.c
+++ b/libavformat/flvdec.c
@@ -463,6 +463,8 @@ static int parse_keyframes_index(AVFormatContext *s, AVIOContext *ioc, int64_t m
goto invalid;
if (current_array == × && (d <= INT64_MIN / 1000 || d >= INT64_MAX / 1000))
goto invalid;
+ if (avio_feof(ioc))
+ goto invalid;
current_array[0][i] = d;
}
if (times && filepositions) {
--
2.17.1
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next prev parent reply other threads:[~2022-07-12 18:43 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-07-12 18:43 [FFmpeg-devel] [PATCH 1/3] avcodec/lagarith: Check dst/src in zero run code Michael Niedermayer
2022-07-12 18:43 ` [FFmpeg-devel] [PATCH 2/3] avformat/nutdec: Check get_packetheader() in mainheader Michael Niedermayer
2022-07-21 17:35 ` Michael Niedermayer
2022-07-12 18:43 ` Michael Niedermayer [this message]
2022-07-21 17:37 ` [FFmpeg-devel] [PATCH 3/3] avformat/flvdec: Check for EOF in index reading Michael Niedermayer
2022-07-13 7:49 ` [FFmpeg-devel] [PATCH 1/3] avcodec/lagarith: Check dst/src in zero run code Paul B Mahol
2022-07-14 18:11 ` Michael Niedermayer
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