ffmpeg | branch: release/5.1 | Michael Niedermayer <[email protected]> | Sun Sep 11 12:58:58 2022 +0200| [7d2360f8d67f386f0a89471f0e1857857464a797] | committer: Michael Niedermayer
avcodec/wavpack: Check for end of input in wv_unpack_dsd_high() Fixes: Timeout Fixes: 50793/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_WAVPACK_fuzzer-4980185027444736 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <[email protected]> (cherry picked from commit 6ad7403bcee47e7c5e99a9c0266935e0da50c9d2) Signed-off-by: Michael Niedermayer <[email protected]> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=7d2360f8d67f386f0a89471f0e1857857464a797 --- libavcodec/wavpack.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/libavcodec/wavpack.c b/libavcodec/wavpack.c index 8bfbb654e8..45c49518f2 100644 --- a/libavcodec/wavpack.c +++ b/libavcodec/wavpack.c @@ -499,6 +499,8 @@ static int wv_unpack_dsd_high(WavpackFrameContext *s, uint8_t *dst_left, uint8_t sp[0].fltr0 = 0; } + if (DSD_BYTE_READY(high, low) && !bytestream2_get_bytes_left(&s->gbyte)) + return AVERROR_INVALIDDATA; while (DSD_BYTE_READY(high, low) && bytestream2_get_bytes_left(&s->gbyte)) { value = (value << 8) | bytestream2_get_byte(&s->gbyte); high = (high << 8) | 0xff; @@ -534,6 +536,8 @@ static int wv_unpack_dsd_high(WavpackFrameContext *s, uint8_t *dst_left, uint8_t sp[1].fltr0 = 0; } + if (DSD_BYTE_READY(high, low) && !bytestream2_get_bytes_left(&s->gbyte)) + return AVERROR_INVALIDDATA; while (DSD_BYTE_READY(high, low) && bytestream2_get_bytes_left(&s->gbyte)) { value = (value << 8) | bytestream2_get_byte(&s->gbyte); high = (high << 8) | 0xff; _______________________________________________ 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".
