| Message ID | 20170817015457.6723-1-michael@niedermayer.cc |
|---|---|
| State | Accepted |
| Commit | cadab5a2a74d715fc16325bd89f8b8091def1083 |
| Headers | show |
On Thu, Aug 17, 2017 at 03:54:56AM +0200, Michael Niedermayer wrote: > Fixes: runtime error: negation of -2147483648 cannot be represented in type 'int32_t' (aka 'int'); cast to an unsigned type to negate this value to itself > Fixes: 2879/clusterfuzz-testcase-minimized-6317542639403008 > > Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg > Signed-off-by: Michael Niedermayer <michael@niedermayer.cc> > --- > libavcodec/pixlet.c | 3 +++ > 1 file changed, 3 insertions(+) applied [...]
diff --git a/libavcodec/pixlet.c b/libavcodec/pixlet.c index a9661d3ab6..088226bdda 100644 --- a/libavcodec/pixlet.c +++ b/libavcodec/pixlet.c @@ -331,6 +331,9 @@ static int read_highpass(AVCodecContext *avctx, uint8_t *ptr, int plane, AVFrame return AVERROR_INVALIDDATA; } + if (a == INT32_MIN) + return AVERROR_INVALIDDATA; + ret = read_high_coeffs(avctx, ptr + bytestream2_tell(&ctx->gb), dest, size, c, (b >= FFABS(a)) ? b : a, d, ctx->band[plane][i + 1].width, stride);
Fixes: runtime error: negation of -2147483648 cannot be represented in type 'int32_t' (aka 'int'); cast to an unsigned type to negate this value to itself Fixes: 2879/clusterfuzz-testcase-minimized-6317542639403008 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <michael@niedermayer.cc> --- libavcodec/pixlet.c | 3 +++ 1 file changed, 3 insertions(+)