On Wed, Nov 30, 2022 at 09:39:44PM +0100, Paul B Mahol wrote: > On 9/11/22, Michael Niedermayer <mich...@niedermayer.cc> wrote: > > Untested with "non fuzzed" samples as i have no such file > > > > Then create it.
the official WavPack-5.6.0 decoder has 2 alternative optimized codepathes
#ifdef USE_BITMASK_TABLES
extras = bitset [bitcount] - maxcode - 1;
#else
extras = (1 << bitcount) - maxcode - 1;
#endif
The 2nd path would result in the same 1<<32 which is undefined but luckily
the first seems hardcoded to be used it uses this table:
const uint32_t bitset [] = {
1L << 0, 1L << 1, 1L << 2, 1L << 3,
1L << 4, 1L << 5, 1L << 6, 1L << 7,
1L << 8, 1L << 9, 1L << 10, 1L << 11,
1L << 12, 1L << 13, 1L << 14, 1L << 15,
1L << 16, 1L << 17, 1L << 18, 1L << 19,
1L << 20, 1L << 21, 1L << 22, 1L << 23,
1L << 24, 1L << 25, 1L << 26, 1L << 27,
1L << 28, 1L << 29, 1L << 30, 1L << 31
};
here bitset[32] is out of array
Given above i suspect no valid file should use this. Otherwise something
seriously odd is going on.
also the subject has a typo its p=31 not k=31
thx
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