From: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Date: Mon, 14 Nov 2016 11:12:56 +0000 (+0900)
Subject: Smack: Use GFP_KERNEL for smk_netlbl_mls().
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=af96f0d6394a0af59c4dd71d6bcd3b1ddfba5196;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git

Smack: Use GFP_KERNEL for smk_netlbl_mls().

Since all callers of smk_netlbl_mls() are GFP_KERNEL context
(smk_set_cipso() calls memdup_user_nul(), init_smk_fs() calls
__kernfs_new_node(), smk_import_entry() calls kzalloc(GFP_KERNEL)),
it is safe to use GFP_KERNEL from netlbl_catmap_setbit().

Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: Casey Schaufler <casey@schaufler-ca.com>
---

diff --git a/security/smack/smack_access.c b/security/smack/smack_access.c
index 356e3764cad9..a4b2e6b94abd 100644
--- a/security/smack/smack_access.c
+++ b/security/smack/smack_access.c
@@ -504,7 +504,7 @@ int smk_netlbl_mls(int level, char *catset, struct netlbl_lsm_secattr *sap,
 			if ((m & *cp) == 0)
 				continue;
 			rc = netlbl_catmap_setbit(&sap->attr.mls.cat,
-						  cat, GFP_ATOMIC);
+						  cat, GFP_KERNEL);
 			if (rc < 0) {
 				netlbl_catmap_free(sap->attr.mls.cat);
 				return rc;