ffmpeg | branch: master | Michael Niedermayer <[email protected]> | Fri Aug 9 01:23:49 2019 +0200| [8f49176e845fee8e4e0aaf06411636b46d1ae3ad] | committer: Michael Niedermayer
avcodec/alac: Check for bps of 0 Fixes: shift exponent 32 is too large for 32-bit type 'unsigned int' Fixes: 15764/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_ALAC_fuzzer-5102101203517440 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Reviewed-by: James Almer <[email protected]> Signed-off-by: Michael Niedermayer <[email protected]> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=8f49176e845fee8e4e0aaf06411636b46d1ae3ad --- libavcodec/alac.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/libavcodec/alac.c b/libavcodec/alac.c index 6086e2caa8..782d461b22 100644 --- a/libavcodec/alac.c +++ b/libavcodec/alac.c @@ -250,10 +250,12 @@ static int decode_element(AVCodecContext *avctx, AVFrame *frame, int ch_index, alac->extra_bits = get_bits(&alac->gb, 2) << 3; bps = alac->sample_size - alac->extra_bits + channels - 1; - if (bps > 32U) { + if (bps > 32) { avpriv_report_missing_feature(avctx, "bps %d", bps); return AVERROR_PATCHWELCOME; } + if (bps < 1) + return AVERROR_INVALIDDATA; /* whether the frame is compressed */ is_compressed = !get_bits1(&alac->gb); _______________________________________________ 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".
