Memory Management Overview

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  • format_list_bulleted Computer Science/Operating System
  • · 2025. 1. 14.

[glibc 2.35] _int_malloc & _int_free

glibc 2.35 _int_malloc 분석static void *_int_malloc (mstate av, size_t bytes){ INTERNAL_SIZE_T nb; /* normalized request size */ unsigned int idx; /* associated bin index */ mbinptr bin; /* associated bin */ mchunkptr victim; /* inspected/selected chunk */ INTERNAL_SIZE_T size; /* its size */ int victim_index; ..

  • format_list_bulleted Computer Security/System Hacking
  • · 2025. 1. 12.
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Handling Deadlocks

Handling Deadlocks

Deadlock Characterization4가지 조건을 모두 동시에 만족할 경우 Deadlock 발생Mutual Exclusion (상호 배제): 자원이 공유 불가능(Non-sharable)하고 한 번에 하나의 프로세스만 사용 할 수 있음.Hold and Wait (점유와 대기): Processes hold and request resources. 프로세스가 이미 자원을 점유한 상태에서 추가 자원을 요청하며 대기No Preemption (비선점): Resources can't be forcibly reclaimed. 자원을 강제로 회수할 수 없으며, 프로세스가 자발적으로 해제해야 함.Circular Wait (순환 대기): Circular chain of processes waiting. 프로세스 간..

  • format_list_bulleted Computer Science/Operating System
  • · 2025. 1. 11.
  • textsms

gdb script

https://sourceware.org/gdb/current/onlinedocs/gdb.html/Python-API.html#Python-API Python API (Debugging with GDB)23.3.2 Python API You can get quick online help for GDB’s Python API by issuing the command python help (gdb) . Functions and methods which have two or more optional arguments allow them to be specified using keyword syntax. This allows passing some opsourceware.org https://sdimitro.g..

  • format_list_bulleted 카테고리 없음
  • · 2025. 1. 8.
  • textsms

Arduino AES Power Analysis Attack

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  • format_list_bulleted Computer Security/Side Channel Attack
  • · 2024. 11. 18.

[Pwnable] randerer

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  • format_list_bulleted Wargame/Dreamhack
  • · 2024. 11. 6.