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avcodec/simple_idct: Fix undefined integer overflow in idct4row()
authorMichael Niedermayer <michael@niedermayer.cc>
Thu, 17 Dec 2020 23:31:08 +0000 (00:31 +0100)
committerMichael Niedermayer <michael@niedermayer.cc>
Tue, 2 Feb 2021 12:12:12 +0000 (13:12 +0100)
commit57f7e5caa324fd760aa9e134ee963e9936083c59
tree33743543db0360ec33834524c97178cd86f0d612tree | snapshot
parent0af0a80cef0eae709b727896e92b44382c3feca8commit | diff
avcodec/simple_idct: Fix undefined integer overflow in idct4row()

Fixes: signed integer overflow: -1498310196 - 902891776 cannot be represented in type 'int'
Fixes: 28445/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_VC1IMAGE_fuzzer-5075163389493248
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
libavcodec/simple_idct.c diff | blob | history
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