On 1/7/19, https://ieeexplore.ieee.org/document/7291728Michael Niedermayer <mich...@niedermayer.cc> wrote: > On Mon, Jan 07, 2019 at 07:41:04PM +0100, Paul B Mahol wrote: >> On 1/7/19, Michael Niedermayer <mich...@niedermayer.cc> wrote: >> > Fixes: Timeout >> > Fixes: >> > 11354/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_QPEG_fuzzer-5766275943366656 >> > >> > Before: Executed >> > clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_QPEG_fuzzer-5766275943366656 >> > in 9470 ms >> > After : Executed >> > clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_QPEG_fuzzer-5766275943366656 >> > in 134 ms >> > >> > Found-by: continuous fuzzing process >> > https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg >> > Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> >> > --- >> > libavcodec/qpeg.c | 5 ++++- >> > 1 file changed, 4 insertions(+), 1 deletion(-) >> > >> > diff --git a/libavcodec/qpeg.c b/libavcodec/qpeg.c >> > index cb452621e7..654fd998d6 100644 >> > --- a/libavcodec/qpeg.c >> > +++ b/libavcodec/qpeg.c >> > @@ -80,7 +80,10 @@ static void qpeg_decode_intra(QpegContext *qctx, >> > uint8_t >> > *dst, >> > >> > p = bytestream2_get_byte(&qctx->buffer); >> > for(i = 0; i < run; i++) { >> > - dst[filled++] = p; >> > + int step = FFMIN(run - i, width - filled); >> > + memset(dst+filled, p, step); >> > + filled += step; >> > + i += step - 1; >> > if (filled >= width) { >> > filled = 0; >> > dst -= stride; >> > -- >> > 2.20.1 >> > >> > _______________________________________________ >> > ffmpeg-devel mailing list >> > ffmpeg-devel@ffmpeg.org >> > http://ffmpeg.org/mailman/listinfo/ffmpeg-devel >> > >> >> lgtm if output does not change. > > fate-qpeg passes and it executes this codepath > do you have any other files i should test ? >
look in samples.ffmpeg.org ? > thx > > > [...] > -- > Michael GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB > > Good people do not need laws to tell them to act responsibly, while bad > people will find a way around the laws. -- Plato > _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-devel
