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avcodec/exr: Fix preview overflow

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Fixes: CID1515456 Unintentional integer overflow

Sponsored-by: Sovereign Tech Fund
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 36126e4c142e43cc703f4b8c535d388ac5e403a4)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2024-05-03 23:25:10 +02:00
parent b01e6a7e0b
commit 14bd2b4b87
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GPG Key ID: B18E8928B3948D64
1 changed files with 1 additions and 1 deletions
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libavcodec/exr.c
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@ -1942,7 +1942,7 @@ static int decode_header(EXRContext *s, AVFrame *frame)
"preview", 16)) >= 0) {
uint32_t pw = bytestream2_get_le32(gb);
uint32_t ph = bytestream2_get_le32(gb);
uint64_t psize = pw * ph;
uint64_t psize = pw * (uint64_t)ph;
if (psize > INT64_MAX / 4) {
ret = AVERROR_INVALIDDATA;
goto fail;