movsxd ignores page protection.

unicorn-engine / unicorn

Unicorn CPU emulator framework (ARM, AArch64, M68K, Mips, Sparc, PowerPC, RiscV, S390x, TriCore, X86)

http://www.unicorn-engine.org

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movsxd ignores page protection. #1881

Open pl1047 opened 9 months ago

pl1047 commented 9 months ago

title. can be read with UC_PROT_NONE without fault... (x64)

pl1047 commented 9 months ago

Never mind, it seems I've misunderstood something. Its not the specific instruction, it just seems that protection is not always evaluated if you change it?

EDIT: Mmm if I go: self.uc.mem_write(self.rip, bytes(self.uc.mem_read(self.rip, 1))) # Invaliate tb it works as expected. Maybe mem_protect() should invalidate tb? I dunno, close as you see fit hehe.