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avcodec/adpcm: Fix integer overflow in ADPCM THP
authorMichael Niedermayer <michael@niedermayer.cc>
Wed, 12 Feb 2020 20:30:08 +0000 (21:30 +0100)
committerMichael Niedermayer <michael@niedermayer.cc>
Wed, 13 May 2020 07:03:45 +0000 (09:03 +0200)
commitb12b05374f7025167e2c43449ceb8ba3f0a6083f
treea7aa556eb874a24c8b96f03afb4b967498a654a5tree | snapshot
parente4d37abcc13b236a544d37b9a8a4aa16bebe1fdacommit | diff
avcodec/adpcm: Fix integer overflow in ADPCM THP

The reference (thp.txt) uses floats so wrap around would seem incorrect.

Fixes: signed integer overflow: 1073741824 + 1073741824 cannot be represented in type 'int'
Fixes: 20658/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_ADPCM_THP_fuzzer-5646302555930624
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
libavcodec/adpcm.c diff | blob | history
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