[FFmpeg-cvslog] avformat/electronicarts: Check for EOF in each iteration of the loop in ea_read_packet()
Michael Niedermayer
git at videolan.org
Sun Oct 25 11:03:44 EET 2020
ffmpeg | branch: master | Michael Niedermayer <michael at niedermayer.cc> | Sat Oct 24 19:24:30 2020 +0200| [857aba7c45faf0335ad91ecabc0bce8b94320758] | committer: Michael Niedermayer
avformat/electronicarts: Check for EOF in each iteration of the loop in ea_read_packet()
Fixes: timeout(>20sec -> 1ms)
Fixes: 26526/clusterfuzz-testcase-minimized-ffmpeg_dem_EA_fuzzer-5672328069120000
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Reviewed-by: Peter Ross <pross at xvid.org>
Signed-off-by: Michael Niedermayer <michael at niedermayer.cc>
> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=857aba7c45faf0335ad91ecabc0bce8b94320758
---
libavformat/electronicarts.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/libavformat/electronicarts.c b/libavformat/electronicarts.c
index d0f483aaf9..4c292f29a2 100644
--- a/libavformat/electronicarts.c
+++ b/libavformat/electronicarts.c
@@ -582,6 +582,8 @@ static int ea_read_packet(AVFormatContext *s, AVPacket *pkt)
int av_uninit(num_samples);
while ((!packet_read && !hit_end) || partial_packet) {
+ if (avio_feof(pb))
+ return AVERROR_EOF;
chunk_type = avio_rl32(pb);
chunk_size = ea->big_endian ? avio_rb32(pb) : avio_rl32(pb);
if (chunk_size < 8)
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