diff options
Diffstat (limited to 'meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0056-Smack-Assign-smack_known_web-label-for-kernel-thread.patch')
| -rw-r--r-- | meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0056-Smack-Assign-smack_known_web-label-for-kernel-thread.patch | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0056-Smack-Assign-smack_known_web-label-for-kernel-thread.patch b/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0056-Smack-Assign-smack_known_web-label-for-kernel-thread.patch new file mode 100644 index 0000000..b045101 --- /dev/null +++ b/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/smack/0056-Smack-Assign-smack_known_web-label-for-kernel-thread.patch @@ -0,0 +1,49 @@ +From ea1c9711146e251c809ecf7eb348b548ac6e967c Mon Sep 17 00:00:00 2001 +From: =?UTF-8?q?Jos=C3=A9=20Bollo?= <jose.bollo@iot.bzh> +Date: Wed, 2 Nov 2016 11:01:15 +0100 +Subject: [PATCH 56/56] Smack: Assign smack_known_web label for kernel thread's + socket in the sk_alloc_security hook +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +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: http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=7412301b76bd53ee53b860f611fc3b5b1c2245b5 +Refers-to: https://review.tizen.org/gerrit/#/c/80717/4 + +Change-Id: I614c5f0e6d59be5ca6b49f0581edfef79fc334cf +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 ff696e7..94914db 100644 +--- a/security/smack/smack_lsm.c ++++ b/security/smack/smack_lsm.c +@@ -2075,8 +2075,16 @@ 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 + |