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path: root/security/apparmor/include/policy_unpack.h
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/*
 * AppArmor security module
 *
 * This file contains AppArmor policy loading interface function definitions.
 *
 * Copyright (C) 1998-2008 Novell/SUSE
 * Copyright 2009-2010 Canonical Ltd.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as
 * published by the Free Software Foundation, version 2 of the
 * License.
 */

#ifndef __POLICY_INTERFACE_H
#define __POLICY_INTERFACE_H

#include <linux/list.h>

struct aa_load_ent {
	struct list_head list;
	struct aa_profile *new;
	struct aa_profile *old;
	struct aa_profile *rename;
};

void aa_load_ent_free(struct aa_load_ent *ent);
struct aa_load_ent *aa_load_ent_alloc(void);

#define PACKED_FLAG_HAT		1

#define PACKED_MODE_ENFORCE	0
#define PACKED_MODE_COMPLAIN	1
#define PACKED_MODE_KILL	2
#define PACKED_MODE_UNCONFINED	3

int aa_unpack(void *udata, size_t size, struct list_head *lh, const char **ns);

#endif /* __POLICY_INTERFACE_H */
-next.git/commit/sound/pci/ice1712/ak4xxx.c?h=nds-private-remove&id=75422726b0f717d67db3283c2eb5bc14fa2619c5'>75422726b0f717d67db3283c2eb5bc14fa2619c5 (diff)
pid: fix lockdep deadlock warning due to ucount_lock
========================================================= [ INFO: possible irq lock inversion dependency detected ] 4.10.0-rc2-00024-g4aecec9-dirty #118 Tainted: G W --------------------------------------------------------- swapper/1/0 just changed the state of lock: (&(&sighand->siglock)->rlock){-.....}, at: [<ffffffffbd0a1bc6>] __lock_task_sighand+0xb6/0x2c0 but this lock took another, HARDIRQ-unsafe lock in the past: (ucounts_lock){+.+...} and interrupts could create inverse lock ordering between them. other info that might help us debug this: Chain exists of: &(&sighand->siglock)->rlock --> &(&tty->ctrl_lock)->rlock --> ucounts_lock Possible interrupt unsafe locking scenario: CPU0 CPU1 ---- ---- lock(ucounts_lock); local_irq_disable(); lock(&(&sighand->siglock)->rlock); lock(&(&tty->ctrl_lock)->rlock); <Interrupt> lock(&(&sighand->siglock)->rlock); *** DEADLOCK *** This patch removes a dependency between rlock and ucount_lock. Fixes: f333c700c610 ("pidns: Add a limit on the number of pid namespaces") Cc: stable@vger.kernel.org Signed-off-by: Andrei Vagin <avagin@openvz.org> Acked-by: Al Viro <viro@ZenIV.linux.org.uk> Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Diffstat (limited to 'sound/pci/ice1712/ak4xxx.c')