lkml.org 
[lkml]   [2018]   [Dec]   [10]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: siginfo pid not populated from ptrace?
On 12/06, Eric W. Biederman wrote:
>
> The challenge is that we could be delivering this to a zombie signal
> group leader.

...

> Sigh it is probably time that I dig in and figure out how to avoid that
> case which we need to fix anyway because we can get the permission
> checks wrong for multi-threaded processes that call setuid and friends.

this is another issue... I am sure we have already discussed this, but I
failed to find any link to the previous discussion.

> Once that is sorted your small change will at least be safe.

I don't think so, any sub-thread can dequeue SIGSTOP unless type == PIDTYPE_PID,
this has nothing to do with the problems connected to zombie leader, or I
misunderstood you.

Oleg.

\
 
 \ /
  Last update: 2018-12-10 16:38    [W:0.103 / U:0.196 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site