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Re: [libunwind] remote unwinding and ptrace()

From: David Mosberger
Subject: Re: [libunwind] remote unwinding and ptrace()
Date: Thu, 11 Dec 2003 20:16:31 -0800

>>>>> On Thu, 11 Dec 2003 15:39:59 -0800, Umut Aymakoglu <address@hidden> said:

  Umut> Hi David - You are right it is not completely libunwind
  Umut> issue. It is a ptrace() problem; a non-root process can not
  Umut> attach to a setuid/setgid process.This is mentioned in the man
  Umut> page of ptrace.  In this case is there an alternative to
  Umut> ptrace()?

Not really.  If there was, it would be a security bug.  I'm not sure
what the context of your question is, but perhaps you could have a
minimal helper process that runs with root privileges and only
provides whatever ptrace-based services you need?


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