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| author | Michael Niedermayer <michael@niedermayer.cc> | 2018-01-31 02:50:18 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2018-02-11 19:41:43 +0100 |
| commit | 5e67a2e13a942a2a84718f354f8f092149fe12bd (patch) | |
| tree | f91dc5e8c9221e2b208f272af3ddb11da864c6e4 | |
| parent | 9efd80dc0996eb0b4c9cde22f96ed7a1f3411cd4 (diff) | |
| download | ffmpeg-5e67a2e13a942a2a84718f354f8f092149fe12bd.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 d5e1e07b74..0e40b29879 100644 --- a/libavcodec/wavpack.c +++ b/libavcodec/wavpack.c @@ -480,7 +480,7 @@ 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; } |