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| author | Michael Niedermayer <michael@niedermayer.cc> | 2018-01-31 02:50:18 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2018-02-12 03:02:29 +0100 |
| commit | 263bddf78159668383afadf1c2db73f74b265377 (patch) | |
| tree | 7da7f30a0b63c1c7cb4a2060d563e4b4f3275830 | |
| parent | 5b6324a94c2086fcd243f2f615024b32fa1e27ce (diff) | |
| download | ffmpeg-263bddf78159668383afadf1c2db73f74b265377.tar.gz | |
avcodec/wavpack: Fix integer overflow in FFABS
Fixes: negation of -2147483648 cannot be represented in type 'int'; cast to an unsigned type to negate this value to itself
Fixes: 5396/clusterfuzz-testcase-minimized-6558555529281536
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 8e50bd61e4ff97bd7fc6cbd7ec4ca514e17a70c4)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavcodec/wavpack.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libavcodec/wavpack.c b/libavcodec/wavpack.c index 2c7afda69f..50b5db55ff 100644 --- a/libavcodec/wavpack.c +++ b/libavcodec/wavpack.c @@ -474,7 +474,7 @@ static inline int wv_unpack_stereo(WavpackFrameContext *s, GetBitContext *gb, } if (type == AV_SAMPLE_FMT_S16P) { - if (FFABS(L) + (unsigned)FFABS(R) > (1<<19)) { + if (FFABS((int64_t)L) + FFABS((int64_t)R) > (1<<19)) { av_log(s->avctx, AV_LOG_ERROR, "sample %d %d too large\n", L, R); return AVERROR_INVALIDDATA; } |