From b338cc8207eae46640a8d534738fda7b5e48511d Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Thu, 22 Apr 2010 12:05:35 +0200 Subject: [PATCH] security: testing the wrong variable in create_by_name() There is a typo here. We should be testing "*dentry" instead of "dentry". If "*dentry" is an ERR_PTR, it gets dereferenced in either mkdir() or create() which would cause an OOPs. Signed-off-by: Dan Carpenter Signed-off-by: James Morris --- security/inode.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/security/inode.c b/security/inode.c index c3a793881d04..1c812e874504 100644 --- a/security/inode.c +++ b/security/inode.c @@ -161,13 +161,13 @@ static int create_by_name(const char *name, mode_t mode, mutex_lock(&parent->d_inode->i_mutex); *dentry = lookup_one_len(name, parent, strlen(name)); - if (!IS_ERR(dentry)) { + if (!IS_ERR(*dentry)) { if ((mode & S_IFMT) == S_IFDIR) error = mkdir(parent->d_inode, *dentry, mode); else error = create(parent->d_inode, *dentry, mode); } else - error = PTR_ERR(dentry); + error = PTR_ERR(*dentry); mutex_unlock(&parent->d_inode->i_mutex); return error;