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| author | Michael Niedermayer <michael@niedermayer.cc> | 2017-05-23 22:18:52 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2017-05-24 15:52:46 +0200 |
| commit | 4e8405b347bf46bd6d0b5ad302a6750122c7baa9 (patch) | |
| tree | 5822d9ded409ace8f611067c3eb979a528d09a6b | |
| parent | 0169072409cf02d3775ce2925dd86776256619ea (diff) | |
| download | ffmpeg-4e8405b347bf46bd6d0b5ad302a6750122c7baa9.tar.gz | |
avcodec/jpeglsdec: Check get_bits_left() before decoding a picture
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 4bc3008d04451cd31818e21703ed7ed96b6ff074)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavcodec/jpeglsdec.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/libavcodec/jpeglsdec.c b/libavcodec/jpeglsdec.c index 68151cbbd8..20b40445fd 100644 --- a/libavcodec/jpeglsdec.c +++ b/libavcodec/jpeglsdec.c @@ -385,6 +385,10 @@ int ff_jpegls_decode_picture(MJpegDecodeContext *s, int near, av_log(s->avctx, AV_LOG_DEBUG, "JPEG params: ILV=%i Pt=%i BPP=%i, scan = %i\n", ilv, point_transform, s->bits, s->cur_scan); } + if (get_bits_left(&s->gb) < s->height) { + ret = AVERROR_INVALIDDATA; + goto end; + } if (ilv == 0) { /* separate planes */ if (s->cur_scan > s->nb_components) { ret = AVERROR_INVALIDDATA; |