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| author | Michael Niedermayer <michaelni@gmx.at> | 2015-05-15 19:29:40 +0300 |
|---|---|---|
| committer | Michael Niedermayer <michaelni@gmx.at> | 2015-06-10 03:13:12 +0300 |
| commit | c01f5517280c389cd823e9e1b5d1cf979040bd61 (patch) | |
| tree | 7a38f7bd4597f1022a85a2e6e0551688590b4d23 | |
| parent | a3d05bf6be2e97092ce2ded0a849d9150aac82f2 (diff) | |
avcodec/dcadec: Check active_bands
Fixes CID1297594 part2
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit fc624ec9ba7e5c4e8d905ac10f605a43d123f95a)
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
| -rw-r--r-- | libavcodec/dcadec.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/libavcodec/dcadec.c b/libavcodec/dcadec.c index f68a6f2982..bb5a6d113b 100644 --- a/libavcodec/dcadec.c +++ b/libavcodec/dcadec.c @@ -1767,8 +1767,13 @@ static int dca_xbr_parse_frame(DCAContext *s) for(i = 0; i < num_chsets; i++) { n_xbr_ch[i] = get_bits(&s->gb, 3) + 1; k = get_bits(&s->gb, 2) + 5; - for(j = 0; j < n_xbr_ch[i]; j++) + for(j = 0; j < n_xbr_ch[i]; j++) { active_bands[i][j] = get_bits(&s->gb, k) + 1; + if (active_bands[i][j] > DCA_SUBBANDS) { + av_log(s->avctx, AV_LOG_ERROR, "too many active subbands (%d)\n", active_bands[i][j]); + return AVERROR_INVALIDDATA; + } + } } /* skip to the end of the header */ |