From: Michael Halcrow <mhalcrow@us.ibm.com>
Date: Fri, 16 Mar 2007 21:38:22 +0000 (-0800)
Subject: [PATCH] eCryptfs: fix possible NULL ptr deref in ecryptfs_d_release()
X-Git-Tag: v2.6.21-rc5~92
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b228b8e5bf96b740a70871c1a248bb65c267f5f2;p=pandora-kernel.git

[PATCH] eCryptfs: fix possible NULL ptr deref in ecryptfs_d_release()

ecryptfs_d_release() first dereferences a pointer (via
ecryptfs_dentry_to_lower()) and then afterwards checks to see if the
pointer it just dereferenced is NULL (via ecryptfs_dentry_to_private()).

This patch moves all of the work done on the dereferenced pointer inside a
block governed by the condition that the pointer is non-NULL.

Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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