Re: [patch 3/3] futex: Prevent attaching to kernel threads

[Peter Zijlstra]

On Mon, May 12, 2014 at 08:45:35PM -0000, Thomas Gleixner wrote:
> We happily allow userspace to declare a random kernel thread to be the
> owner of a user space PI futex.
> 
> Found while analysing the fallout of Dave Jones syscall fuzzer.

Did you also still want to check the ppid for _PRIVATE futexes?
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