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From: Russell King <rmk@arm.linux.org.uk>
To: Linux Kernel List <linux-kernel@vger.kernel.org>
Subject: 2.4+ptrace exploit fix breaks root's ability to strace
Date: Sat, 22 Mar 2003 10:31:21 +0000	[thread overview]
Message-ID: <20030322103121.A16994@flint.arm.linux.org.uk> (raw)

Hi,

Are the authors of the ptrace patch aware that, in addition to closing the
hole, the "fix" also prevents a ptrace-capable task (eg, strace started by
root) from ptracing user threads?

For example, you can't strace vsftpd processes started from xinetd.

Is this intended behaviour?

-- 
Russell King (rmk@arm.linux.org.uk)                The developer of ARM Linux
             http://www.arm.linux.org.uk/personal/aboutme.html


             reply	other threads:[~2003-03-22 10:20 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2003-03-22 10:31 Russell King [this message]
2003-03-22 14:58 ` 2.4+ptrace exploit fix breaks root's ability to strace Alan Cox
2003-03-22 14:10   ` Russell King
2003-03-22 15:28     ` Arjan van de Ven
2003-03-22 17:13       ` Russell King
2003-03-22 17:28         ` Arjan van de Ven
2003-03-22 19:09         ` Alan Cox
2003-03-22 18:01           ` Russell King
2003-03-23 10:31   ` Lists (lst)
2003-03-23 10:38     ` Russell King
2003-03-23 11:11       ` Martin Loschwitz
2003-03-23 10:43     ` Arjan van de Ven
  -- strict thread matches above, loose matches on Subject: below --
2003-04-17  5:46 Yusuf Wilajati Purna
2003-04-19  5:57 ` Bernhard Kaindl
2003-04-22  5:03   ` Yusuf Wilajati Purna

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