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patch for stride overflow

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This commit is contained in:
caheckman 2019-10-04 15:21:57 -04:00
parent 04f7366a62
commit 10bcb661c2
1 changed files with 2 additions and 1 deletions
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3
Ghidra/Features/Decompiler/src/decompile/cpp/jumptable.cc
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@ -419,12 +419,13 @@ int4 JumpBasic::getStride(Varnode *vn)
{
uintb mask = vn->getNZMask();
if ((mask & 0x3f)==0) // Limit the maximum stride we can return
return 32;
int4 stride = 1;
while((mask&1)==0) {
mask >>= 1;
stride <<= 1;
}
if (stride > 32) return 1;
return stride;
}