Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]


Groups > linux.kernel > #1293943

Re: use-after-free in __perf_install_in_context

From Peter Zijlstra <peterz@infradead.org>
Newsgroups linux.kernel
Subject Re: use-after-free in __perf_install_in_context
Date 2015-12-17 15:50 +0100
Message-ID <qGI2t-IG-11@gated-at.bofh.it> (permalink)
References (5 earlier) <qGHpM-py-1@gated-at.bofh.it> <qGHpM-py-5@gated-at.bofh.it> <qGHJ9-Ah-31@gated-at.bofh.it> <qGHJ9-Ah-29@gated-at.bofh.it> <qGHSN-EG-5@gated-at.bofh.it>
Organization linux.* mail to news gateway

Show all headers | View raw


On Thu, Dec 17, 2015 at 03:35:32PM +0100, Dmitry Vyukov wrote:
> In short, I did not see use-after-frees but perf_event_open fuzzing
> started hanging VMs very frequently, so testing is inconclusive.

Right, I'll get back to staring at that one.

Running your test case on bare metal got my machine reproducably stuck
but in a different place than you've reported.

Takes a while too, so far no luck in explaining/debugging it. All my
added debug code remains silent :/

I'll go think up more .. 
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

Back to linux.kernel | Previous | NextPrevious in thread | Next in thread | Find similar | Unroll thread


Thread

Re: use-after-free in __perf_install_in_context Peter Zijlstra <peterz@infradead.org> - 2015-12-17 15:10 +0100
  Re: use-after-free in __perf_install_in_context Dmitry Vyukov <dvyukov@google.com> - 2015-12-17 15:10 +0100
    Re: use-after-free in __perf_install_in_context Peter Zijlstra <peterz@infradead.org> - 2015-12-17 15:30 +0100
      Re: use-after-free in __perf_install_in_context Dmitry Vyukov <dvyukov@google.com> - 2015-12-17 15:40 +0100
        Re: use-after-free in __perf_install_in_context Peter Zijlstra <peterz@infradead.org> - 2015-12-17 15:50 +0100
          Re: use-after-free in __perf_install_in_context Dmitry Vyukov <dvyukov@google.com> - 2015-12-31 18:20 +0100
    Re: use-after-free in __perf_install_in_context Peter Zijlstra <peterz@infradead.org> - 2015-12-17 15:30 +0100

csiph-web