diff options
| author | Michael Niedermayer <michael@niedermayer.cc> | 2015-09-26 13:20:59 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2015-11-12 02:55:46 +0100 |
| commit | f10ba15d7371203e16cee3fb9e46bae9febcb6da (patch) | |
| tree | a36811ec06097a62608b9751673c5d664e854557 | |
| parent | 54661cf0b2c9b0218e419b7cc3fd095a59762cda (diff) | |
| download | ffmpeg-f10ba15d7371203e16cee3fb9e46bae9febcb6da.tar.gz | |
avcodec/ffv1dec: Fix off by 1 error in quant_table_count check
Fixes: invalid_read.nut
Found-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 2d221d9e069e6269cb41f3678f2734800171d87b)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavcodec/ffv1dec.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libavcodec/ffv1dec.c b/libavcodec/ffv1dec.c index d828aaf3ef..7dcce95caa 100644 --- a/libavcodec/ffv1dec.c +++ b/libavcodec/ffv1dec.c @@ -305,7 +305,7 @@ static int decode_slice_header(FFV1Context *f, FFV1Context *fs) for (i = 0; i < f->plane_count; i++) { PlaneContext * const p = &fs->plane[i]; int idx = get_symbol(c, state, 0); - if (idx > (unsigned)f->quant_table_count) { + if (idx >= (unsigned)f->quant_table_count) { av_log(f->avctx, AV_LOG_ERROR, "quant_table_index out of range\n"); return -1; } |