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SubjectRe: situation with signals
On Wed, Oct 27, 2010 at 06:51:12PM -0400, Chris Metcalf wrote:

> > BTW, is everything in your pt_regs safe to modify?
> What an interesting observation. :-) In fact, it would be possible to
> overwrite the privilege level (the ex1 register) from within the signal
> handler and then return to run arbitrary code at kernel PL. I'll fix it.

Then you need to be careful with that in your ptrace as well (POKEUSR and

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