From: Michael Niedermayer <michael@niedermayer.cc>
To: FFmpeg development discussions and patches <ffmpeg-devel@ffmpeg.org>
Subject: [FFmpeg-devel] [PATCH] avformat/rka: bps < 8 is invalid
Date: Tue, 11 Apr 2023 01:47:45 +0200
Message-ID: <20230410234745.25355-1-michael@niedermayer.cc> (raw)
Fixes: division by zero
Fixes: 57828/clusterfuzz-testcase-minimized-ffmpeg_dem_RKA_fuzzer-6571818338353152
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
---
libavformat/rka.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/libavformat/rka.c b/libavformat/rka.c
index 39e5b3bce12..36e25ade017 100644
--- a/libavformat/rka.c
+++ b/libavformat/rka.c
@@ -72,7 +72,7 @@ static int rka_read_header(AVFormatContext *s)
if (channels == 0)
return AVERROR_INVALIDDATA;
bps = par->extradata[13];
- if (bps == 0)
+ if (bps < 8)
return AVERROR_INVALIDDATA;
size_offset = avio_rl32(s->pb);
framepos = avio_tell(s->pb);
--
2.17.1
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next reply other threads:[~2023-04-10 23:47 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-04-10 23:47 Michael Niedermayer [this message]
2023-07-22 15:33 ` Michael Niedermayer
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