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| author | Michael Niedermayer <michael@niedermayer.cc> | 2021-05-31 21:40:17 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2021-09-11 21:23:49 +0200 |
| commit | 2e36b0d55a9d2fc6e117972372e9e5d3382c3dd7 (patch) | |
| tree | f028f446cddf16b3bb021f493ff1c0d49333827e | |
| parent | 5f44a99a603bf3d95d56cd574ea7aee99d43485b (diff) | |
| download | ffmpeg-2e36b0d55a9d2fc6e117972372e9e5d3382c3dd7.tar.gz | |
avcodec/vc2enc: Check for non negative slice bounds
Fixes: invalid shifts
Fixes: Ticket 8221
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit f7862e82686b347eb6a9e64fa7ccdf25d5a76b4b)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavcodec/vc2enc.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/libavcodec/vc2enc.c b/libavcodec/vc2enc.c index cdc7d4250d..00d5847cdc 100644 --- a/libavcodec/vc2enc.c +++ b/libavcodec/vc2enc.c @@ -1022,6 +1022,8 @@ static av_cold int vc2_encode_frame(AVCodecContext *avctx, AVPacket *avpkt, s->slice_max_bytes = SSIZE_ROUND(s->slice_max_bytes); s->slice_min_bytes = s->slice_max_bytes - s->slice_max_bytes*(s->tolerance/100.0f); + if (s->slice_min_bytes < 0) + return AVERROR(EINVAL); ret = encode_frame(s, avpkt, frame, aux_data, header_size, s->interlaced); if (ret) |