git: net/if_clone: Panic if the same cloner is attached twice

[Markus Pfeiffer]

commit 51edabe8443f84c07c3bc5499445c984035af8ea
Author: Markus Pfeiffer <markus.pfeiffer at morphism.de>
Date:   Mon Nov 10 10:21:46 2014 +0000

    net/if_clone: Panic if the same cloner is attached twice
    
    if_clone_attach used to allow attaching the same cloner twice,
    which then lead to infinite loops when trying to create
    a clone with an invalid name.
    This patch adds a check whether the cloner is already
    attached, and if so, panics.

Summary of changes:
 sys/net/if_clone.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

http://gitweb.dragonflybsd.org/dragonfly.git/commitdiff/51edabe8443f84c07c3bc5499445c984035af8ea


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