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SubjectRe: [linux-usb-devel] Re: [Security] [vendor-sec] [BUG/PATCH/RFC] Oops while completing async USB via usbdevio
On Maw, 2005-09-27 at 09:09 -0700, Linus Torvalds wrote:
> > root-owned), then the urb completes, and kill_proc_info() sends the
> > signal to the unsuspecting process.
> Ehh.. pid's don't get re-used until they wrap.

Which doesn't take very long to arrange. Relying on pids is definitely a
security problem we don't want to make worse than it already is.

> If you look it up by pid, it won't be stale, now will it?

Just potentially wrong, but if it uses the SIGIO code and the SIGIO code
is fixed then it works out.

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