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Code Issues Releases Activity

libavcodec/cfhd: Fix signed overflow in shift

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Fixes: 8695/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_CFHD_fuzzer-4906172426485760

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2018-07-14 00:24:47 +02:00
parent 5d8df3cc4a
commit 7334985ffa
1 changed files with 1 additions and 1 deletions
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2
libavcodec/cfhd.c
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@ -541,7 +541,7 @@ static int cfhd_decode(AVCodecContext *avctx, void *data, int *got_frame,
s->peak.level = 0;
} else if (tag == -76) {
s->peak.offset &= 0xffff;
s->peak.offset |= (data & 0xffff)<<16;
s->peak.offset |= (data & 0xffffU)<<16;
s->peak.base = (int16_t *) gb.buffer;
s->peak.level = 0;
} else if (tag == -74 && s->peak.offset) {