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avcodec/g2meet: Fix potential overflow in tile dimensions check 

Fixes CID1322351

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2015-09-04 12:10:02 +02:00
parent c447ab0e74
commit 71ec8e1ed6
1 changed files with 1 additions and 1 deletions
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2
libavcodec/g2meet.c
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@ -1448,7 +1448,7 @@ static int g2m_decode_frame(AVCodecContext *avctx, void *data,
c->tile_height = bytestream2_get_be32(&bc);
if (c->tile_width <= 0 || c->tile_height <= 0 ||
((c->tile_width | c->tile_height) & 0xF) ||
c->tile_width * 4LL * c->tile_height >= INT_MAX
c->tile_width * (uint64_t)c->tile_height >= INT_MAX / 4
) {
av_log(avctx, AV_LOG_ERROR,
"Invalid tile dimensions %dx%d\n",