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SubjectRe: System crash with perf_fuzzer (kernel: 5.0.0-rc3)
On Fri, Feb 01, 2019 at 11:27:28AM -0500, Vince Weaver wrote:
> On Fri, 1 Feb 2019, Jiri Olsa wrote:
>
> > with attached patch I did not trigger the fuzzer crash
> > for over a day now, could you guys try?
>
> I've just started fuzzing with the patch applied. Often it takes a few
> hours to trigger the bug.

cool, thanks

>
> Added question about this bug. It appeared that the crash was triggered
> by the BTS driver over-writing kernel memory. The data being written, was
> this user controllable? Meaning, is this a security issue being fixed, or
> just a crashing issue?

yea, I have an example that can trigger it immediately

jirka

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