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Revision 64b4c411a6c7a5f27555bfc2d6310b87bde3db67 authored by Andrew Morton on 21 October 2022, 04:19:22 UTC, committed by Andrew Morton on 28 October 2022, 20:37:22 UTC 
ipc/msg.c: fix percpu_counter use after free
 
These percpu counters are referenced in free_ipcs->freeque, so destroy
them later.

Fixes: 72d1e611082e ("ipc/msg: mitigate the lock contention with percpu counter")
Reported-by: syzbot+96e659d35b9d6b541152@syzkaller.appspotmail.com
Tested-by: Mark Rutland <mark.rutland@arm.com>
Cc: Jiebin Sun <jiebin.sun@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
1 parent 27d676a
Raw File
pm_wakeirq.h 
/* SPDX-License-Identifier: GPL-2.0-only */
/* pm_wakeirq.h - Device wakeirq helper functions */

#ifndef _LINUX_PM_WAKEIRQ_H
#define _LINUX_PM_WAKEIRQ_H

#ifdef CONFIG_PM

extern int dev_pm_set_wake_irq(struct device *dev, int irq);
extern int dev_pm_set_dedicated_wake_irq(struct device *dev, int irq);
extern int dev_pm_set_dedicated_wake_irq_reverse(struct device *dev, int irq);
extern void dev_pm_clear_wake_irq(struct device *dev);
extern void dev_pm_enable_wake_irq(struct device *dev);
extern void dev_pm_disable_wake_irq(struct device *dev);

#else	/* !CONFIG_PM */

static inline int dev_pm_set_wake_irq(struct device *dev, int irq)
{
	return 0;
}

static inline int dev_pm_set_dedicated_wake_irq(struct device *dev, int irq)
{
	return 0;
}

static inline int dev_pm_set_dedicated_wake_irq_reverse(struct device *dev, int irq)
{
	return 0;
}

static inline void dev_pm_clear_wake_irq(struct device *dev)
{
}

static inline void dev_pm_enable_wake_irq(struct device *dev)
{
}

static inline void dev_pm_disable_wake_irq(struct device *dev)
{
}

#endif	/* CONFIG_PM */
#endif	/* _LINUX_PM_WAKEIRQ_H */
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