From: Ananth N Mavinakayanahalli <ananth@in.ibm.com>
Date: Thu, 20 Apr 2006 09:43:11 +0000 (-0700)
Subject: [PATCH] kprobes: NULL out non-relevant fields in struct kretprobe
X-Git-Tag: v2.6.17-rc3~77
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=7522a8423bed9931cbac5502b9c0657bde2700ea;p=pandora-kernel.git

[PATCH] kprobes: NULL out non-relevant fields in struct kretprobe

In cases where a struct kretprobe's *_handler fields are non-NULL, it is
possible to cause a system crash, due to the possibility of calls ending up
in zombie functions.  Documentation clearly states that unused *_handlers
should be set to NULL, but kprobe users sometimes fail to do so.

Fix it by setting the non-relevant fields of the struct kretprobe to NULL.

Signed-off-by: Ananth N Mavinakayanahalli <ananth@in.ibm.com>
Acked-by: Jim Keniston <jkenisto@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---

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