[FFmpeg-devel] [PATCH 6/6] avformat/rka: Fix division by 0 for bps < 8
Michael Niedermayer
michael at niedermayer.cc
Sun Apr 9 17:26:27 EEST 2023
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 at 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..c83a17c92cc 100644
--- a/libavformat/rka.c
+++ b/libavformat/rka.c
@@ -100,7 +100,7 @@ static int rka_read_header(AVFormatContext *s)
break;
}
- if ((r = av_add_index_entry(st, framepos, (i * 131072LL) / (channels * (bps >> 3)),
+ if ((r = av_add_index_entry(st, framepos, (i * 131072LL*8) / (channels * bps),
size, 0, AVINDEX_KEYFRAME)) < 0)
return r;
framepos += size;
--
2.17.1
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