ffmpeg | branch: release/2.4 | Michael Niedermayer <mich...@niedermayer.cc> | 
Sat Sep 26 13:20:59 2015 +0200| [a2a93b0a8f5d77e244cbdbac2724855b217c29e6] | 
committer: Michael Niedermayer

avcodec/ffv1dec: Fix off by 1 error in quant_table_count check

Fixes: invalid_read.nut
Found-by: Paul B Mahol <one...@gmail.com>

Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc>
(cherry picked from commit 2d221d9e069e6269cb41f3678f2734800171d87b)

Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=a2a93b0a8f5d77e244cbdbac2724855b217c29e6
---

 libavcodec/ffv1dec.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libavcodec/ffv1dec.c b/libavcodec/ffv1dec.c
index 475b1ad..0ca58f4 100644
--- a/libavcodec/ffv1dec.c
+++ b/libavcodec/ffv1dec.c
@@ -306,7 +306,7 @@ 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;
         }

_______________________________________________
ffmpeg-cvslog mailing list
ffmpeg-cvslog@ffmpeg.org
http://ffmpeg.org/mailman/listinfo/ffmpeg-cvslog

Reply via email to