lkml.org 
[lkml]   [2016]   [Oct]   [25]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH v2 perf/core] perf script: fix a use after free crash.
On Tue, Oct 11, 2016 at 02:28:39AM -0700, Krister Johansen wrote:
> If dso__load_kcore frees all of the existing maps, but one has already
> been attached to a callchain cursor node, then we can get a SIGSEGV in
> any function that happens to try to use this invalid cursor. Use the
> existing map refcount mechanism to forestall cleanup of a map until the
> cursor iterates past the node.

It has been a couple of weeks since I sent out v2 of this patch. I
understand that folks here have plenty of irons in the fire, but I
wanted to double-check that nobody was waiting on me for additional
information or changes.

Thanks,

-K

\
 
 \ /
  Last update: 2016-10-26 02:20    [W:0.090 / U:5.148 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site