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

Greg Kroah-Hartman
2018-08-23T09:12:49Z

From: Casey Schaufler <casey@schaufler-ca.com>

[ 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@schaufler-ca.com>
Signed-off-by: James Morris <james.morris@microsoft.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
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;
}

/*