2.4+ptrace exploit fix breaks root's ability to strace

From: Russell King (rmk@arm.linux.org.uk)
Date: Sat Mar 22 2003 - 05:31:21 EST

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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

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