[PATCH 4.14 075/217] Smack: Mark inode instant in smack_task_to_inode

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4.14-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Casey Schaufler <casey@xxxxxxxxxxxxxxxx>

[ Upstream commit 7b4e88434c4e7982fb053c49657e1c8bbb8692d9 ]

Smack: Mark inode instant in smack_task_to_inode

/proc clean-up in commit 1bbc55131e59bd099fdc568d3aa0b42634dbd188
resulted in smack_task_to_inode() being called before smack_d_instantiate.
This resulted in the smk_inode value being ignored, even while present
for files in /proc/self. Marking the inode as instant here fixes that.

Signed-off-by: Casey Schaufler <casey@xxxxxxxxxxxxxxxx>
Signed-off-by: James Morris <james.morris@xxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <alexander.levin@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
 security/smack/smack_lsm.c |    1 +
 1 file changed, 1 insertion(+)

--- a/security/smack/smack_lsm.c
+++ b/security/smack/smack_lsm.c
@@ -2281,6 +2281,7 @@ static void smack_task_to_inode(struct t
 	struct smack_known *skp = smk_of_task_struct(p);
 
 	isp->smk_inode = skp;
+	isp->smk_flags |= SMK_INODE_INSTANT;
 }
 
 /*





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