| Message ID | 20171226222445.20277-2-michael@niedermayer.cc |
|---|---|
| State | Accepted |
| Commit | 3d23f7a0969bf76ad6dcdc2c4a5cd3ae884745a8 |
| Headers | show |
diff --git a/libavcodec/flacdec.c b/libavcodec/flacdec.c index 64bea76f98..c8eb456049 100644 --- a/libavcodec/flacdec.c +++ b/libavcodec/flacdec.c @@ -302,7 +302,7 @@ static int decode_subframe_fixed(FLACContext *s, int32_t *decoded, if (pred_order > 2) c = b - decoded[pred_order-2] + decoded[pred_order-3]; if (pred_order > 3) - d = c - decoded[pred_order-2] + 2*decoded[pred_order-3] - decoded[pred_order-4]; + d = c - decoded[pred_order-2] + 2U*decoded[pred_order-3] - decoded[pred_order-4]; switch (pred_order) { case 0:
Fixes: signed integer overflow: 2 * 1629495328 cannot be represented in type 'int' Fixes: 4716/clusterfuzz-testcase-minimized-5835915940331520 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <michael@niedermayer.cc> --- libavcodec/flacdec.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)