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CRED: Separate task security context from task_struct

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Separate the task security context from task_struct.  At this point, the
security data is temporarily embedded in the task_struct with two pointers
pointing to it.

Note that the Alpha arch is altered as it refers to (E)UID and (E)GID in
entry.S via asm-offsets.

With comment fixes Signed-off-by: Marc Dionne <marc.c.dionne@gmail.com>

Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: James Morris <jmorris@namei.org>
Acked-by: Serge Hallyn <serue@us.ibm.com>
Signed-off-by: James Morris <jmorris@namei.org>
This commit is contained in:
David Howells 2008-11-14 10:39:16 +11:00 • committed by James Morris
parent 15a2460ed0
commit b6dff3ec5e
63 changed files with 830 additions and 675 deletions
Download patch file Download diff file Expand all files Collapse all files

4
kernel/cgroup.c
View file

@ -1293,7 +1293,9 @@ static int attach_task_by_pid(struct cgroup *cgrp, u64 pid)
rcu_read_unlock();
euid = current_euid();
if (euid && euid != tsk->uid && euid != tsk->suid) {
if (euid &&
euid != tsk->cred->uid &&
euid != tsk->cred->suid) {
put_task_struct(tsk);
return -EACCES;
}