I've been using it for quite a while now, it caused no problems or errors with any legitimate programs, games, anti cheat systems etc other than with...

2012年2月28日 · I expect that due to Address Space Layout Randomization (ALSR) a process forked from another process will have different addresses returned when calling mmap. But as I found out, that was not the case. I made the following test program for that purpose. All the addresses returned by malloc are exactly the same for the parent and the child.

2019年12月30日 · I have a question about Address Space Layout Randomization (ALSR) on macOS. According to Apple (2016), "If you are compiling an executable that targets macOS 10.7 and later or iOS 4.3 and later, the necessary flags [for ASLR] are enabled by default”.

2017年2月28日 · @Paul Betts: Kernel32 and ntdll are certainly magical, but the same is also true of other DLLs. If someone loads a DLL in process A and then someone opens it again in Process B they'll get the same address (this allows the kernel to have both processes backed by the same pages to save RAM).

2023年5月18日 · ASLR and PIE (or PIC) are two sides of the same coin: PIE is a requirement for ASLR. PIE allows code to be placed anywhere in memory, ASLR is the act of actually positioning it randomly.

2014年7月23日 · If both are ALSR enabled, app.exe's base address is unknown. It may resolve some function call addresses when it is loaded but an attacker knows neither where the function is nor where the resolved variables are. The same thing happens when TargetLib.dll is loaded. Even though app.exe has a lookup table, an attacker does not know where the ...

2014年10月13日 · The layout of pages in physical memory is pretty much always unpredictable (regardless of whether ALSR is enabled) for operating systems like Linux that heavily use virtual memory. – tangrs Commented Oct 14, 2014 at 2:29

2012年6月28日 · I would like to disable address space layout randomization (ASLR) on my system (Ubuntu Gnu/Linux 2.6.32-41-server), but, if I use sysctl -w kernel.randomize_va_space=0 the change would affect all...

2011年1月10日 · I'm trying to debug a binary that uses a lot of pointers. Sometimes for seeing output quickly to figure out errors, I print out the address of objects and their corresponding values, however, the o...

2021年11月27日 · Footnote 1: As prl points out, this design allows an implementation to literally only have 48 actual bits to store RIP values anywhere in the pipeline, except jumps and detecting signed overflow in case execution runs off the end into non-canonical territory.