lkml.org 
[lkml]   [2021]   [Nov]   [26]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: BUG: KASAN: use-after-free in dec_rlimit_ucounts
On Wed, Nov 24, 2021 at 04:49:19PM -0500, Qian Cai wrote:
> Hmm, I don't know if that or it is just this platfrom is lucky to trigger
> the race condition quickly, but I can't reproduce it on x86 so far. I am
> Cc'ing a few arm64 people to see if they have spot anything I might be
> missing. The original bug report is here:
>
> https://lore.kernel.org/lkml/YZV7Z+yXbsx9p3JN@fixkernel.com/

Okay, I am finally able to reproduce this on x86_64 with the latest
mainline as well by setting CONFIG_USER_NS and KASAN on the top of
defconfig (I did not realize it did not select CONFIG_USER_NS in the first
place). Anyway, it still took less than 5-minute by running:

$ trinity -C 48

\
 
 \ /
  Last update: 2021-11-26 06:36    [W:0.089 / U:0.368 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site