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Minor improvement of 'smack_sb_kern_mount'

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Fix a possible memory access fault when transmute is true and isp is NULL.

Signed-off-by: José Bollo <jose.bollo@open.eurogiciel.org>
This commit is contained in:
José Bollo 2014-01-08 15:53:05 +01:00 committed by Casey Schaufler
parent f64410ec66
commit 55dfc5da1a
1 changed files with 5 additions and 3 deletions
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8
security/smack/smack_lsm.c
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@ -413,9 +413,11 @@ static int smack_sb_kern_mount(struct super_block *sb, int flags, void *data)
* Initialize the root inode.
*/
isp = inode->i_security;
if (inode->i_security == NULL) {
inode->i_security = new_inode_smack(sp->smk_root);
isp = inode->i_security;
if (isp == NULL) {
isp = new_inode_smack(sp->smk_root);
if (isp == NULL)
return -ENOMEM;
inode->i_security = isp;
} else
isp->smk_inode = sp->smk_root;