Re: mmap'ing to address 0x0

2009-10-09 Thread Theo de Raadt
> I was reading some information that indicated that letting user > process to map to address 0x0 can exploit some kernel NULL-pointer > bugs. I checked how different operating systems mitigate this problem > and I found information about Linux and FreeBSD. I was trying to find > the same informati

mmap'ing to address 0x0

2009-10-09 Thread Luis Useche
Hi Guys, I was reading some information that indicated that letting user process to map to address 0x0 can exploit some kernel NULL-pointer bugs. I checked how different operating systems mitigate this problem and I found information about Linux and FreeBSD. I was trying to find the same informati