Merge tag 'linux-can-fixes-for-7.2-20260716' of git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can

Marc Kleine-Budde says:

====================
pull-request: can 2026-07-16

this is a pull request of 19 patches for net/main.

The first patch is by Alexander Hölzl and fixes the Kconfig
description of the vxcan driver.

Next patch by Fan Wu fixes the tear down order in the esd_usb driver.

Followed by a patch by Oliver Hartkopp that adds missing locking for
the raw flags in the CAN_RAW protocol.

Shuhao Fu's patch for the j1939 protocol fix lockless
local-destination check.

Stéphane Grosjean updates their email address.

The next 11 patches all target the CAM Broadcast Manager protocol. One
contributed by Lee Jones the remaining ones by Oliver Hartkopp. They
fix several concurrency and locking issues found by various bots.

The last 3 patches are also by Oliver Hartkopp fixing concurrency and
locking issues found by various bots in the CAN ISO Transport
Protocol.

linux-can-fixes-for-7.2-20260716

* tag 'linux-can-fixes-for-7.2-20260716' of git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can:
  can: isotp: serialize TX state transitions under so->rx_lock
  can: isotp: fix use-after-free race with concurrent NETDEV_UNREGISTER
  can: isotp: use unconditional synchronize_rcu() in isotp_release()
  can: bcm: track a single source interface for ANYDEV timeout/throttle ops
  can: bcm: fix data race on rx_stamp/rx_ifindex in bcm_rx_handler()
  can: bcm: fix stale rx/tx ops after device removal
  can: bcm: add missing device refcount for CAN filter removal
  can: bcm: validate frame length in bcm_rx_setup() for RTR replies
  can: bcm: extend bcm_tx_lock usage for data and timer updates
  can: bcm: add missing rcu list annotations and operations
  can: bcm: fix CAN frame rx/tx statistics
  can: bcm: add locking when updating filter and timer values
  can: bcm: fix lockless bound/ifindex race and silent RX_SETUP failure
  can: bcm: defer rx_op deallocation to workqueue to fix thrtimer UAF
  can: peak: Modification of references to email accounts being deleted
  can: j1939: fix lockless local-destination check
  can: raw: add locking for raw flags bitfield
  can: esd_usb: kill anchored URBs before freeing netdevs
  can: vxcan: Kconfig: fix description stating no local echo provided
====================

Link: https://patch.msgid.link/20260716155528.809908-1-mkl@pengutronix.de
Signed-off-by: Paolo Abeni <pabeni@redhat.com>

Author: Paolo Abeni

.mailmap

@@ -825,8 +825,8 @@ Sriram Yagnaraman <sriram.yagnaraman@ericsson.com> <sriram.yagnaraman@est.tech>
 Stanislav Fomichev <sdf@fomichev.me> <sdf@google.com>
 Stanislav Fomichev <sdf@fomichev.me> <stfomichev@gmail.com>
 Stefan Wahren <wahrenst@gmx.net> <stefan.wahren@i2se.com>
-Stéphane Grosjean <stephane.grosjean@hms-networks.com> <s.grosjean@peak-system.com>
-Stéphane Grosjean <stephane.grosjean@hms-networks.com> <stephane.grosjean@free.fr>
+Stéphane Grosjean <s.grosjean@peak-system.fr> <s.grosjean@peak-system.com>
+Stéphane Grosjean <s.grosjean@peak-system.fr> <stephane.grosjean@free.fr>
 Stéphane Witzmann <stephane.witzmann@ubpmes.univ-bpclermont.fr>
 Stephen Hemminger <stephen@networkplumber.org> <shemminger@linux-foundation.org>
 Stephen Hemminger <stephen@networkplumber.org> <shemminger@osdl.org>

drivers/net/can/Kconfig

@@ -40,11 +40,8 @@ config CAN_VXCAN
 	  When one end receives the packet it appears on its pair and vice
 	  versa. The vxcan can be used for cross namespace communication.
 
-	  In opposite to vcan loopback devices the vxcan only forwards CAN
-	  frames to its pair and does *not* provide a local echo of sent
-	  CAN frames. To disable a potential echo in af_can.c the vxcan driver
-	  announces IFF_ECHO in the interface flags. To have a clean start
-	  in each namespace the CAN GW hop counter is set to zero.
+	  To have a clean start in each namespace the CAN GW hop counter is
+	  set to zero.
 
 	  This driver can also be built as a module.  If so, the module
 	  will be called vxcan.

drivers/net/can/peak_canfd/peak_canfd.c

@@ -2,7 +2,7 @@
 /* Copyright (C) 2007, 2011 Wolfgang Grandegger <wg@grandegger.com>
  *
  * Copyright (C) 2016-2025 PEAK System-Technik GmbH
- * Author: Stéphane Grosjean <stephane.grosjean@hms-networks.com>
+ * Author: Stéphane Grosjean <s.grosjean@peak-system.fr>
  */
 
 #include <linux/can.h>

drivers/net/can/peak_canfd/peak_canfd_user.h

@@ -2,7 +2,7 @@
 /* CAN driver for PEAK System micro-CAN based adapters
  *
  * Copyright (C) 2003-2025 PEAK System-Technik GmbH
- * Author: Stéphane Grosjean <stephane.grosjean@hms-networks.com>
+ * Author: Stéphane Grosjean <s.grosjean@peak-system.fr>
  */
 #ifndef PEAK_CANFD_USER_H
 #define PEAK_CANFD_USER_H

drivers/net/can/peak_canfd/peak_pciefd_main.c

@@ -4,7 +4,7 @@
  * Derived from the PCAN project file driver/src/pcan_pci.c:
  *
  * Copyright (C) 2001-2025 PEAK System-Technik GmbH
- * Author: Stéphane Grosjean <stephane.grosjean@hms-networks.com>
+ * Author: Stéphane Grosjean <s.grosjean@peak-system.fr>
  */
 
 #include <linux/kernel.h>
@@ -19,7 +19,7 @@
 
 #include "peak_canfd_user.h"
 
-MODULE_AUTHOR("Stéphane Grosjean <stephane.grosjean@hms-networks.com>");
+MODULE_AUTHOR("Stéphane Grosjean <s.grosjean@peak-system.fr>");
 MODULE_DESCRIPTION("Socket-CAN driver for PEAK PCAN PCIe/M.2 FD family cards");
 MODULE_LICENSE("GPL v2");
 

drivers/net/can/sja1000/peak_pci.c

@@ -5,7 +5,7 @@
  * Derived from the PCAN project file driver/src/pcan_pci.c:
  *
  * Copyright (C) 2001-2025 PEAK System-Technik GmbH
- * Author: Stéphane Grosjean <stephane.grosjean@hms-networks.com>
+ * Author: Stéphane Grosjean <s.grosjean@peak-system.fr>
  */
 
 #include <linux/kernel.h>
@@ -22,7 +22,7 @@
 
 #include "sja1000.h"
 
-MODULE_AUTHOR("Stéphane Grosjean <stephane.grosjean@hms-networks.com>");
+MODULE_AUTHOR("Stéphane Grosjean <s.grosjean@peak-system.fr>");
 MODULE_DESCRIPTION("Socket-CAN driver for PEAK PCAN PCI family cards");
 MODULE_LICENSE("GPL v2");
 

drivers/net/can/sja1000/peak_pcmcia.c

@@ -4,7 +4,7 @@
  * Derived from the PCAN project file driver/src/pcan_pccard.c
  *
  * Copyright (C) 2006-2025 PEAK System-Technik GmbH
- * Author: Stéphane Grosjean <stephane.grosjean@hms-networks.com>
+ * Author: Stéphane Grosjean <s.grosjean@peak-system.fr>
  */
 #include <linux/kernel.h>
 #include <linux/module.h>
@@ -19,7 +19,7 @@
 #include <linux/can/dev.h>
 #include "sja1000.h"
 
-MODULE_AUTHOR("Stéphane Grosjean <stephane.grosjean@hms-networks.com>");
+MODULE_AUTHOR("Stéphane Grosjean <s.grosjean@peak-system.fr>");
 MODULE_DESCRIPTION("CAN driver for PEAK-System PCAN-PC Cards");
 MODULE_LICENSE("GPL v2");
 

drivers/net/can/usb/esd_usb.c

@@ -1390,10 +1390,13 @@ static void esd_usb_disconnect(struct usb_interface *intf)
 				netdev = dev->nets[i]->netdev;
 				netdev_info(netdev, "unregister\n");
 				unregister_netdev(netdev);
-				free_candev(netdev);
 			}
 		}
 		unlink_all_urbs(dev);
+		for (i = 0; i < dev->net_count; i++) {
+			if (dev->nets[i])
+				free_candev(dev->nets[i]->netdev);
+		}
 		kfree(dev);
 	}
 }

drivers/net/can/usb/peak_usb/pcan_usb.c

@@ -4,7 +4,7 @@
  * Derived from the PCAN project file driver/src/pcan_usb.c
  *
  * Copyright (C) 2003-2025 PEAK System-Technik GmbH
- * Author: Stéphane Grosjean <stephane.grosjean@hms-networks.com>
+ * Author: Stéphane Grosjean <s.grosjean@peak-system.fr>
  *
  * Many thanks to Klaus Hitschler <klaus.hitschler@gmx.de>
  */

drivers/net/can/usb/peak_usb/pcan_usb_core.c

@@ -4,7 +4,7 @@
  * Derived from the PCAN project file driver/src/pcan_usb_core.c
  *
  * Copyright (C) 2003-2025 PEAK System-Technik GmbH
- * Author: Stéphane Grosjean <stephane.grosjean@hms-networks.com>
+ * Author: Stéphane Grosjean <s.grosjean@peak-system.fr>
  *
  * Many thanks to Klaus Hitschler <klaus.hitschler@gmx.de>
  */
@@ -24,7 +24,7 @@
 
 #include "pcan_usb_core.h"
 
-MODULE_AUTHOR("Stéphane Grosjean <stephane.grosjean@hms-networks.com>");
+MODULE_AUTHOR("Stéphane Grosjean <s.grosjean@peak-system.fr>");
 MODULE_DESCRIPTION("CAN driver for PEAK-System USB adapters");
 MODULE_LICENSE("GPL v2");