ffmpeg | branch: master | Michael Niedermayer <[email protected]> | Sun Sep 13 21:12:17 2020 +0200| [c467adf3bf9bb4b7fd28956ec698d884e63f145d] | committer: Michael Niedermayer
avcodec/wmalosslessdec: Check remaining space before padding and channel residue Fixes: Timeout (1101sec -> 0.4sec) Fixes: 24491/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_WMALOSSLESS_fuzzer-5725337036783616 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <[email protected]> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=c467adf3bf9bb4b7fd28956ec698d884e63f145d --- libavcodec/wmalosslessdec.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/libavcodec/wmalosslessdec.c b/libavcodec/wmalosslessdec.c index 725e811070..b8d0f6220d 100644 --- a/libavcodec/wmalosslessdec.c +++ b/libavcodec/wmalosslessdec.c @@ -932,6 +932,8 @@ static int decode_subframe(WmallDecodeCtx *s) s->do_lpc = 0; } + if (get_bits_left(&s->gb) < 1) + return AVERROR_INVALIDDATA; if (get_bits1(&s->gb)) padding_zeroes = get_bits(&s->gb, 5); _______________________________________________ ffmpeg-cvslog mailing list [email protected] https://ffmpeg.org/mailman/listinfo/ffmpeg-cvslog To unsubscribe, visit link above, or email [email protected] with subject "unsubscribe".
