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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
of.h 
// SPDX-License-Identifier: GPL-2.0
/*
 * OF helpers for usb devices.
 */

#ifndef __LINUX_USB_OF_H
#define __LINUX_USB_OF_H

#include <linux/usb/ch9.h>
#include <linux/usb/otg.h>
#include <linux/usb/phy.h>

struct usb_device;

#if IS_ENABLED(CONFIG_OF)
enum usb_dr_mode of_usb_get_dr_mode_by_phy(struct device_node *np, int arg0);
bool of_usb_host_tpl_support(struct device_node *np);
int of_usb_update_otg_caps(struct device_node *np,
			struct usb_otg_caps *otg_caps);
struct device_node *usb_of_get_device_node(struct usb_device *hub, int port1);
bool usb_of_has_combined_node(struct usb_device *udev);
struct device_node *usb_of_get_interface_node(struct usb_device *udev,
		u8 config, u8 ifnum);
struct device *usb_of_get_companion_dev(struct device *dev);
#else
static inline enum usb_dr_mode
of_usb_get_dr_mode_by_phy(struct device_node *np, int arg0)
{
	return USB_DR_MODE_UNKNOWN;
}
static inline bool of_usb_host_tpl_support(struct device_node *np)
{
	return false;
}
static inline int of_usb_update_otg_caps(struct device_node *np,
				struct usb_otg_caps *otg_caps)
{
	return 0;
}
static inline struct device_node *
usb_of_get_device_node(struct usb_device *hub, int port1)
{
	return NULL;
}
static inline bool usb_of_has_combined_node(struct usb_device *udev)
{
	return false;
}
static inline struct device_node *
usb_of_get_interface_node(struct usb_device *udev, u8 config, u8 ifnum)
{
	return NULL;
}
static inline struct device *usb_of_get_companion_dev(struct device *dev)
{
	return NULL;
}
#endif

#if IS_ENABLED(CONFIG_OF) && IS_ENABLED(CONFIG_USB_SUPPORT)
enum usb_phy_interface of_usb_get_phy_mode(struct device_node *np);
#else
static inline enum usb_phy_interface of_usb_get_phy_mode(struct device_node *np)
{
	return USBPHY_INTERFACE_MODE_UNKNOWN;
}

#endif

#endif /* __LINUX_USB_OF_H */
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