From: Marcin Niesluchowski <m.niesluchow@samsung.com>
Date: Tue, 19 Aug 2014 12:26:32 +0000 (+0200)
Subject: Smack: Fix setting label on successful file open
X-Git-Tag: firefly_0821_release~176^2~2675^2~15^2~4
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=d83d2c26461d661384676a4eed935d925b0fcc34;p=firefly-linux-kernel-4.4.55.git

Smack: Fix setting label on successful file open

While opening with CAP_MAC_OVERRIDE file label is not set.
Other calls may access it after CAP_MAC_OVERRIDE is dropped from process.

Signed-off-by: Marcin Niesluchowski <m.niesluchow@samsung.com>
---

diff --git a/security/smack/smack_lsm.c b/security/smack/smack_lsm.c
index 16ae8534b14c..7091b46adab2 100644
--- a/security/smack/smack_lsm.c
+++ b/security/smack/smack_lsm.c
@@ -1477,8 +1477,10 @@ static int smack_file_open(struct file *file, const struct cred *cred)
 	struct smk_audit_info ad;
 	int rc;
 
-	if (smack_privileged(CAP_MAC_OVERRIDE))
+	if (smack_privileged(CAP_MAC_OVERRIDE)) {
+		file->f_security = isp->smk_inode;
 		return 0;
+	}
 
 	smk_ad_init(&ad, __func__, LSM_AUDIT_DATA_PATH);
 	smk_ad_setfield_u_fs_path(&ad, file->f_path);