X-Git-Url: https://gerrit.automotivelinux.org/gerrit/gitweb?a=blobdiff_plain;f=meta-agl-bsp%2Frecipes-kernel%2Flinux%2Flinux-4.9%2F0004-Smack-Assign-smack_known_web-label-for-kernel-thread.patch;fp=meta-agl-bsp%2Frecipes-kernel%2Flinux%2Flinux-4.9%2F0004-Smack-Assign-smack_known_web-label-for-kernel-thread.patch;h=a1eeac3d7738baeef5755a66f0e8000ab5be8951;hb=9691b89fd8a0014b7d57c9fc35cf75bfe8da1577;hp=0000000000000000000000000000000000000000;hpb=5692de99c4e04d51a6c5da86fea1710d55420873;p=AGL%2Fmeta-agl.git

diff --git a/meta-agl-bsp/recipes-kernel/linux/linux-4.9/0004-Smack-Assign-smack_known_web-label-for-kernel-thread.patch b/meta-agl-bsp/recipes-kernel/linux/linux-4.9/0004-Smack-Assign-smack_known_web-label-for-kernel-thread.patch
new file mode 100644
index 000000000..a1eeac3d7
--- /dev/null
+++ b/meta-agl-bsp/recipes-kernel/linux/linux-4.9/0004-Smack-Assign-smack_known_web-label-for-kernel-thread.patch
@@ -0,0 +1,49 @@
+From c8bbb0f916de54610513e376070aea531af19dd6 Mon Sep 17 00:00:00 2001
+From: jooseong lee <jooseong.lee@samsung.com>
+Date: Thu, 3 Nov 2016 10:55:43 +0100
+Subject: [PATCH 4/4] Smack: Assign smack_known_web label for kernel thread's
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+Assign smack_known_web label for kernel thread's socket in the sk_alloc_security hook
+
+Creating struct sock by sk_alloc function in various kernel subsystems
+like bluetooth dosen't call smack_socket_post_create(). In such case,
+received sock label is the floor('_') label and makes access deny.
+
+Refers-to: https://review.tizen.org/gerrit/#/c/80717/4
+
+Change-Id: I2e5c9359bfede84a988fd4d4d74cdb9dfdfc52d8
+Signed-off-by: jooseong lee <jooseong.lee@samsung.com>
+Signed-off-by: José Bollo <jose.bollo@iot.bzh>
+---
+ security/smack/smack_lsm.c | 12 ++++++++++--
+ 1 file changed, 10 insertions(+), 2 deletions(-)
+
+diff --git a/security/smack/smack_lsm.c b/security/smack/smack_lsm.c
+index cf8a93f..21651bc 100644
+--- a/security/smack/smack_lsm.c
++++ b/security/smack/smack_lsm.c
+@@ -2321,8 +2321,16 @@ static int smack_sk_alloc_security(struct sock *sk, int family, gfp_t gfp_flags)
+ 	if (ssp == NULL)
+ 		return -ENOMEM;
+ 
+-	ssp->smk_in = skp;
+-	ssp->smk_out = skp;
++	/*
++	 * Sockets created by kernel threads receive web label.
++	 */
++	if (unlikely(current->flags & PF_KTHREAD)) {
++		ssp->smk_in = &smack_known_web;
++		ssp->smk_out = &smack_known_web;
++	} else {
++		ssp->smk_in = skp;
++		ssp->smk_out = skp;
++	}
+ 	ssp->smk_packet = NULL;
+ 
+ 	sk->sk_security = ssp;
+-- 
+2.7.4
+