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[LAB5] 313551077 #366

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[LAB5] 313551077 #366

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8 changes: 7 additions & 1 deletion lab5/antiasan.c
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Original file line number Diff line number Diff line change
Expand Up @@ -2,5 +2,11 @@

void antiasan(unsigned long addr)
{

// Calculate shadow memory address for gS (after gBadBuf)
unsigned long shadow_addr = ((addr + 0x87) >> 3) + 0x7fff8000;

// Mark 16 bytes of shadow memory as valid (covers gS[0x17] to gS[0x27])
for (int i = 0; i < 16; i++) {
*(char *)(shadow_addr + i) = 0;
}
}
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