This is a note to let you know that I've just added the patch titled
Smack:- Use overlay inode label in smack_inode_copy_up()
to the 5.15-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
smack-use-overlay-inode-label-in-smack_inode_copy_up.patch
and it can be found in the queue-5.15 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit b3af31029d859d2ad730bc0ee245f2cbab76eeb6
Author: Vishal Goel <vishal.goel@xxxxxxxxxxx>
Date: Fri Sep 17 13:08:14 2021 +0530
Smack:- Use overlay inode label in smack_inode_copy_up()
[ Upstream commit 387ef964460f14fe1c1ea29aba70e22731ea7cf7 ]
Currently in "smack_inode_copy_up()" function, process label is
changed with the label on parent inode. Due to which,
process is assigned directory label and whatever file or directory
created by the process are also getting directory label
which is wrong label.
Changes has been done to use label of overlay inode instead
of parent inode.
Signed-off-by: Vishal Goel <vishal.goel@xxxxxxxxxxx>
Signed-off-by: Casey Schaufler <casey@xxxxxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/security/smack/smack_lsm.c b/security/smack/smack_lsm.c
index f8c40c49d860c..39f564f47fea5 100644
--- a/security/smack/smack_lsm.c
+++ b/security/smack/smack_lsm.c
@@ -4663,7 +4663,7 @@ static int smack_inode_copy_up(struct dentry *dentry, struct cred **new)
/*
* Get label from overlay inode and set it in create_sid
*/
- isp = smack_inode(d_inode(dentry->d_parent));
+ isp = smack_inode(d_inode(dentry));
skp = isp->smk_inode;
tsp->smk_task = skp;
*new = new_creds;
