linux-kernel - [PATCH] security: selinux: allow per-file labelling for binderfs

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Date:   Mon,  6 Jan 2020 10:13:29 -0800
From:   Hridya Valsaraju <hridya@...gle.com>
To:     Paul Moore <paul@...l-moore.com>,
        Stephen Smalley <sds@...ho.nsa.gov>,
        Eric Paris <eparis@...isplace.org>, selinux@...r.kernel.org,
        linux-kernel@...r.kernel.org
Cc:     kernel-team@...roid.com, Hridya Valsaraju <hridya@...gle.com>,
        Jeff Vander Stoep <jeffv@...gle.com>,
        Mark Salyzyn <salyzyn@...roid.com>
Subject: [PATCH] security: selinux: allow per-file labelling for binderfs

This patch allows genfscon per-file labeling for binderfs.
This is required to have separate permissions to allow
access to binder, hwbinder and vndbinder devices which are
relocating to binderfs.

Acked-by: Jeff Vander Stoep <jeffv@...gle.com>
Acked-by: Mark Salyzyn <salyzyn@...roid.com>
Signed-off-by: Hridya Valsaraju <hridya@...gle.com>
---
 security/selinux/hooks.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c
index 116b4d644f68..3f0669a708e9 100644
--- a/security/selinux/hooks.c
+++ b/security/selinux/hooks.c
@@ -752,6 +752,7 @@ static int selinux_set_mnt_opts(struct super_block *sb,
 
 	if (!strcmp(sb->s_type->name, "debugfs") ||
 	    !strcmp(sb->s_type->name, "tracefs") ||
+	    !strcmp(sb->s_type->name, "binderfs") ||
 	    !strcmp(sb->s_type->name, "pstore"))
 		sbsec->flags |= SE_SBGENFS;
 
-- 
2.24.1.735.g03f4e72817-goog