On Wed, Jun 19, 2019 at 01:53:03AM +0200, Michael Niedermayer wrote: > lpc_quant of 0 produces undefined behavior, thus disallow this. > If valid samples use this then such a sample would be quite > usefull to confirm the correct&lossles handling of this. > > Fixes: libavcodec/alac.c:218:25: runtime error: shift exponent -1 is negative > Fixes: > 15273/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_ALAC_fuzzer-5656388535058432 > Fixes: > 15276/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_ALAC_fuzzer-5761238417539072 > Fixes: > 15315/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_ALAC_fuzzer-5767260766994432 > > Found-by: continuous fuzzing process > https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg > Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> > --- > libavcodec/alac.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-)
will apply [...] -- Michael GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB Opposition brings concord. Out of discord comes the fairest harmony. -- Heraclitus
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