[FFmpeg-devel] [PATCH] avcodec/mjpegdec: Fixes runtime error: signed integer overflow: -24543 * 2031616 cannot be represented in type 'int'

[Michael Niedermayer]

Fixes: 943/clusterfuzz-testcase-5114865297391616

Found-by: continuous fuzzing process 
https://github.com/google/oss-fuzz/tree/master/targets/ffmpeg
Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc>
---
 libavcodec/mjpegdec.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/libavcodec/mjpegdec.c b/libavcodec/mjpegdec.c
index f26e8a3f9a..e08b045fe7 100644
--- a/libavcodec/mjpegdec.c
+++ b/libavcodec/mjpegdec.c
@@ -757,7 +757,8 @@ static int decode_block_progressive(MJpegDecodeContext *s, 
int16_t *block,
                                     uint16_t *quant_matrix,
                                     int ss, int se, int Al, int *EOBRUN)
 {
-    int code, i, j, level, val, run;
+    int code, i, j, val, run;
+    SUINT level;
 
     if (*EOBRUN) {
         (*EOBRUN)--;
-- 
2.11.0

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