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Published 20 hours ago • verified publisher icon rizinorg

Overlapping disassembly bug after jmp instruction.

Open Semnodime opened this issue 2 years ago • 0 comments

Environment information

  • Operating System: linuxmint 20.2
  • Cutter version: 2.0.3
  • File format: elf64
  • Arch: x86
  • Type:

Note This bug report is mainly posted to make publicly known that this bug can occur. Reproducebility outside this specific context is estimated to be low.

Describe the bug The disassembly of the instructon after jmp 0x477190 starts 1 byte to early at ff. Hex starting at 0x0047950e is e97ddcffff90909090909090909090.

To Reproduce Steps to reproduce the behavior:

  • Load this specific project. (Sadly, I cannot share the file).

Public options to reproduce the behavior:

  • Unknown (A minimalistic shell code won't reproduce the file).

Expected behavior Display jmp 0x477190 and then plenty of nops only.

Screenshots image

Additional Context The bug disappears when undefining the function via the u shortcut. It stays fixed when redefining the function.

Semnodime avatar Dec 17 '21 07:12 Semnodime