[RFC][PATCH 2/7] selinux: label new file descriptors using file->f_cred

[Roberto Sassu]

New file descriptors are labeled using the credentials set in the 'f_cred'
field of the same structure. This permits to distinguish objects directly
managed by a user process from those created by a kernel service acting
on behalf of the application.

Signed-off-by: Roberto Sassu <roberto.sassu@xxxxxxxxx>
---
 security/selinux/hooks.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c
index f9c3764..6772687 100644
--- a/security/selinux/hooks.c
+++ b/security/selinux/hooks.c
@@ -232,7 +232,7 @@ static void inode_free_security(struct inode *inode)
 static int file_alloc_security(struct file *file)
 {
 	struct file_security_struct *fsec;
-	u32 sid = current_sid();
+	u32 sid = cred_sid(file->f_cred);
 
 	fsec = kzalloc(sizeof(struct file_security_struct), GFP_KERNEL);
 	if (!fsec)
-- 
1.7.4.4

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