lkml.org 
[lkml]   [2019]   [Apr]   [26]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [RFC PATCH 0/7] x86: introduce system calls addess space isolation
On Thu, 25 Apr 2019, Andy Lutomirski wrote:

> The benefit seems to come from making sure that the RET instruction
> actually goes somewhere that's already been faulted in.

Which doesn't seem to be really compatible with things like retpolines or
anyone using FTRACE_WITH_REGS to modify stored instruction pointer.

--
Jiri Kosina
SUSE Labs

\
 
 \ /
  Last update: 2019-04-26 11:05    [W:0.196 / U:1.264 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site