Fixes: signed integer overflow: 2040 * 1187872 cannot be represented in type
'int'
Fixes:
15368/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_RV20_fuzzer-5681657136283648
Found-by: continuous fuzzing process
https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer
---
libavcodec/rv10.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/libavcodec/rv10.c b/libavcodec/rv10.c
index 8f4497b9e0..729e4a8d2c 100644
--- a/libavcodec/rv10.c
+++ b/libavcodec/rv10.c
@@ -388,9 +388,9 @@ static int rv20_decode_picture_header(RVDecContext *rv)
// attempt to keep aspect during typical resolution switches
if (!old_aspect.num)
old_aspect = (AVRational){1, 1};
-if (2 * new_w * s->height == new_h * s->width)
+if (2 * (int64_t)new_w * s->height == (int64_t)new_h * s->width)
s->avctx->sample_aspect_ratio = av_mul_q(old_aspect,
(AVRational){2, 1});
-if (new_w * s->height == 2 * new_h * s->width)
+if ((int64_t)new_w * s->height == 2 * (int64_t)new_h * s->width)
s->avctx->sample_aspect_ratio = av_mul_q(old_aspect,
(AVRational){1, 2});
ret = ff_set_dimensions(s->avctx, new_w, new_h);
--
2.22.0
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