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    SubjectRe: perf: use-after-free in perf_release
    On Tue, Mar 7, 2017 at 10:08 AM, Peter Zijlstra <peterz@infradead.org> wrote:
    > On Mon, Mar 06, 2017 at 02:34:50PM +0100, Dmitry Vyukov wrote:
    >> FWIW here are 2 syzkaller programs that triggered the bug:
    >> https://gist.githubusercontent.com/dvyukov/d67f980050589775237a7fbdff226bec/raw/4bca72861cb2ede64059b6dad403e19f425a361f/gistfile1.txt
    >
    > Hurm, previously your gistfile thingies were actual C, but this thing is
    > gibberish. How do I run it?

    The same way we did it here:
    https://groups.google.com/d/msg/syzkaller/MHXa-o8foyc/yrGfDOrwAQAJ
    This will run it in infinite loop in 10 parallel processes:
    ./syz-execprog -repeat=0 -procs=10 -sandbox=namespace gistfile1.txt
    -sandbox=namespace will require CONFIG_USER_NS=y, I am not sure if it
    is actually required, but that's how bots triggered it. You can do
    -sandbox=none as well.

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