diff options
| author | Michael Niedermayer <[email protected]> | 2017-06-19 14:08:58 +0200 |
|---|---|---|
| committer | Michael Niedermayer <[email protected]> | 2017-07-19 15:26:37 +0200 |
| commit | eaf2bacca1c42bc784bb0994d1d91171e864e62d (patch) | |
| tree | e5886193c96f4d16f8a14cd9943cef99af86b012 | |
| parent | cf61bf81073e2721c0c7c30738af2d63322f83d8 (diff) | |
avcodec/wavpack: Fix undefined integer negation
Fixes: runtime error: negation of -2147483648 cannot be represented in type 'int'; cast to an unsigned type to negate this value to itself
Fixes: 2291/clusterfuzz-testcase-minimized-5538453481586688
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <[email protected]>
(cherry picked from commit 5f89747086af741ddc34e2378cde8519b8faee78)
Signed-off-by: Michael Niedermayer <[email protected]>
| -rw-r--r-- | libavcodec/wavpack.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/libavcodec/wavpack.c b/libavcodec/wavpack.c index ba5fa7a266..96d6d65bf0 100644 --- a/libavcodec/wavpack.c +++ b/libavcodec/wavpack.c @@ -313,8 +313,8 @@ static float wv_get_value_float(WavpackFrameContext *s, uint32_t *crc, int S) S <<= s->float_shift; sign = S < 0; if (sign) - S = -S; - if (S >= 0x1000000) { + S = -(unsigned)S; + if (S >= 0x1000000U) { if (s->got_extra_bits && get_bits1(&s->gb_extra_bits)) S = get_bits(&s->gb_extra_bits, 23); else |