Re: [RFC] pointer poisoning macro

2015-06-06 Thread Vasily Kulikov
Hi, Any feedback? On Thu, May 14, 2015 at 14:07 +0300, Vasily Kulikov wrote: > This is a raw version of the patch inspired by the discussion: > http://www.openwall.com/lists/oss-security/2015/05/02/6. > > The patch tries to achieve two goals: > 1) Move "overflowed" poison pointers out of the mma

[RFC] pointer poisoning macro

2015-05-14 Thread Vasily Kulikov
This is a raw version of the patch inspired by the discussion: http://www.openwall.com/lists/oss-security/2015/05/02/6. The patch tries to achieve two goals: 1) Move "overflowed" poison pointers out of the mmap'able memory zone 2) Simplify addition of new poison pointers The current 0x00200200 po