[FFmpeg-devel] [PATCH 4/4] avcodec/jpeg2000dec: Reset nb_lengthinc

[Michael Niedermayer]

Fixes: NULL pointer dereference

Found-by: 丁zhengzheng <xiaozheng.ding...@gmail.com>
Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc>
---
 libavcodec/jpeg2000dec.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/libavcodec/jpeg2000dec.c b/libavcodec/jpeg2000dec.c
index e5e897a29f1..b82d85d5ee5 100644
--- a/libavcodec/jpeg2000dec.c
+++ b/libavcodec/jpeg2000dec.c
@@ -1521,6 +1521,7 @@ static int jpeg2000_decode_packet(Jpeg2000DecoderContext 
*s, Jpeg2000Tile *tile,
                 }
             }
             av_freep(&cblk->lengthinc);
+            cblk->nb_lengthinc = 0;
         }
     }
     // Save state of stream
-- 
2.47.0

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