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CRED: Detach the credentials from task_struct

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Detach the credentials from task_struct, duplicating them in copy_process()
and releasing them in __put_task_struct().

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 10:39:17 +11:00 • committed by James Morris
parent b6dff3ec5e
commit f1752eec61
11 changed files with 179 additions and 83 deletions
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8
security/capability.c
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@ -340,12 +340,12 @@ static int cap_task_create(unsigned long clone_flags)
return 0;
}
static int cap_task_alloc_security(struct task_struct *p)
static int cap_cred_alloc_security(struct cred *cred)
{
return 0;
}
static void cap_task_free_security(struct task_struct *p)
static void cap_cred_free(struct cred *cred)
{
}
@ -890,8 +890,8 @@ void security_fixup_ops(struct security_operations *ops)
set_to_cap_if_null(ops, file_receive);
set_to_cap_if_null(ops, dentry_open);
set_to_cap_if_null(ops, task_create);
set_to_cap_if_null(ops, task_alloc_security);
set_to_cap_if_null(ops, task_free_security);
set_to_cap_if_null(ops, cred_alloc_security);
set_to_cap_if_null(ops, cred_free);
set_to_cap_if_null(ops, task_setuid);
set_to_cap_if_null(ops, task_post_setuid);
set_to_cap_if_null(ops, task_setgid);