Smack: Mark inode instant in smack_task_to_inode

BugLink: https://bugs.launchpad.net/bugs/1835845
[ 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>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Khalid Elmously <khalid.elmously@canonical.com>

diff --git a/security/smack/smack_lsm.c b/security/smack/smack_lsm.c
index 88eaebe300cb9749d297e90190f1a5c738cea07f..1211c333c722be6bc3ff03cb09f7a88bbdf2bff6 100644 (file)
--- a/security/smack/smack_lsm.c
+++ b/security/smack/smack_lsm.c
@@ -2179,6 +2179,7 @@ static void smack_task_to_inode(struct task_struct *p, struct inode *inode)
        struct smack_known *skp = smk_of_task_struct(p);
 
        isp->smk_inode = skp;
+       isp->smk_flags |= SMK_INODE_INSTANT;
 }
 
 /*