ffmpeg | branch: release/4.3 | Michael Niedermayer <mich...@niedermayer.cc> | Wed Aug 7 00:18:53 2024 +0200| [aea5aadc201aa0989a670b446f413f452279f9e6] | committer: Michael Niedermayer
avformat/wtvdec: Check length of read mpeg2_descriptor Fixes: Use of uninitialized value Fixes: 70900/clusterfuzz-testcase-minimized-ffmpeg_dem_WTV_fuzzer-6286909377150976 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Reviewed-by: Peter Ross <pr...@xvid.org> Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> (cherry picked from commit c390234da2e3c7a8884f5592f0b9b4928c482b3e) Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=aea5aadc201aa0989a670b446f413f452279f9e6 --- libavformat/wtvdec.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/libavformat/wtvdec.c b/libavformat/wtvdec.c index cd0a4545af..23cfcda570 100644 --- a/libavformat/wtvdec.c +++ b/libavformat/wtvdec.c @@ -862,7 +862,8 @@ static int parse_chunks(AVFormatContext *s, int mode, int64_t seekts, int *len_p } buf_size = FFMIN(len - consumed, sizeof(buf)); - avio_read(pb, buf, buf_size); + if (avio_read(pb, buf, buf_size) != buf_size) + return AVERROR_INVALIDDATA; consumed += buf_size; ff_parse_mpeg2_descriptor(s, st, 0, &pbuf, buf + buf_size, NULL, 0, 0, NULL); } _______________________________________________ ffmpeg-cvslog mailing list ffmpeg-cvslog@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-cvslog To unsubscribe, visit link above, or email ffmpeg-cvslog-requ...@ffmpeg.org with subject "unsubscribe".
