BUG: memory leak
unreferenced object 0xffff8881110c7680 (size 64):
  comm "kworker/1:2", pid 3710, jiffies 4294946158 (age 13.520s)
  hex dump (first 32 bytes):
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
  backtrace:
    [<00000000062c2431>] kmalloc include/linux/slab.h:557 [inline]
    [<00000000062c2431>] hcd_buffer_alloc+0x149/0x190 drivers/usb/core/buffer.c:134
    [<000000004e4ede82>] usb_alloc_coherent+0x42/0x60 drivers/usb/core/usb.c:897
    [<000000002678a121>] mcba_usb_start drivers/net/can/usb/mcba_usb.c:644 [inline]
    [<000000002678a121>] mcba_usb_probe+0x27b/0x430 drivers/net/can/usb/mcba_usb.c:846
    [<000000004c730376>] usb_probe_interface+0x177/0x370 drivers/usb/core/driver.c:396
    [<00000000fb1d3651>] really_probe+0x159/0x4a0 drivers/base/dd.c:554
    [<00000000e35fd46e>] driver_probe_device+0x84/0x100 drivers/base/dd.c:740
    [<000000001f82e53d>] __device_attach_driver+0xee/0x110 drivers/base/dd.c:846
    [<00000000c694db99>] bus_for_each_drv+0xb7/0x100 drivers/base/bus.c:431
    [<00000000ba03302c>] __device_attach+0x122/0x250 drivers/base/dd.c:914
    [<0000000044f53905>] bus_probe_device+0xc6/0xe0 drivers/base/bus.c:491
    [<00000000204f6612>] device_add+0x5be/0xc30 drivers/base/core.c:3109
    [<0000000020f1c701>] usb_set_configuration+0x9d9/0xb90 drivers/usb/core/message.c:2164
    [<00000000dfca835f>] usb_generic_driver_probe+0x8c/0xc0 drivers/usb/core/generic.c:238
    [<000000006a66a2a7>] usb_probe_device+0x5c/0x140 drivers/usb/core/driver.c:293
    [<00000000fb1d3651>] really_probe+0x159/0x4a0 drivers/base/dd.c:554
    [<00000000e35fd46e>] driver_probe_device+0x84/0x100 drivers/base/dd.c:740

BUG: memory leak
unreferenced object 0xffff88810de38e40 (size 64):
  comm "kworker/1:2", pid 3710, jiffies 4294946158 (age 13.520s)
  hex dump (first 32 bytes):
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
  backtrace:
    [<00000000062c2431>] kmalloc include/linux/slab.h:557 [inline]
    [<00000000062c2431>] hcd_buffer_alloc+0x149/0x190 drivers/usb/core/buffer.c:134
    [<000000004e4ede82>] usb_alloc_coherent+0x42/0x60 drivers/usb/core/usb.c:897
    [<000000002678a121>] mcba_usb_start drivers/net/can/usb/mcba_usb.c:644 [inline]
    [<000000002678a121>] mcba_usb_probe+0x27b/0x430 drivers/net/can/usb/mcba_usb.c:846
    [<000000004c730376>] usb_probe_interface+0x177/0x370 drivers/usb/core/driver.c:396
    [<00000000fb1d3651>] really_probe+0x159/0x4a0 drivers/base/dd.c:554
    [<00000000e35fd46e>] driver_probe_device+0x84/0x100 drivers/base/dd.c:740
    [<000000001f82e53d>] __device_attach_driver+0xee/0x110 drivers/base/dd.c:846
    [<00000000c694db99>] bus_for_each_drv+0xb7/0x100 drivers/base/bus.c:431
    [<00000000ba03302c>] __device_attach+0x122/0x250 drivers/base/dd.c:914
    [<0000000044f53905>] bus_probe_device+0xc6/0xe0 drivers/base/bus.c:491
    [<00000000204f6612>] device_add+0x5be/0xc30 drivers/base/core.c:3109
    [<0000000020f1c701>] usb_set_configuration+0x9d9/0xb90 drivers/usb/core/message.c:2164
    [<00000000dfca835f>] usb_generic_driver_probe+0x8c/0xc0 drivers/usb/core/generic.c:238
    [<000000006a66a2a7>] usb_probe_device+0x5c/0x140 drivers/usb/core/driver.c:293
    [<00000000fb1d3651>] really_probe+0x159/0x4a0 drivers/base/dd.c:554
    [<00000000e35fd46e>] driver_probe_device+0x84/0x100 drivers/base/dd.c:740

BUG: memory leak
unreferenced object 0xffff88810de38e00 (size 64):
  comm "kworker/1:2", pid 3710, jiffies 4294946158 (age 13.520s)
  hex dump (first 32 bytes):
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
  backtrace:
    [<00000000062c2431>] kmalloc include/linux/slab.h:557 [inline]
    [<00000000062c2431>] hcd_buffer_alloc+0x149/0x190 drivers/usb/core/buffer.c:134
    [<000000004e4ede82>] usb_alloc_coherent+0x42/0x60 drivers/usb/core/usb.c:897
    [<000000002678a121>] mcba_usb_start drivers/net/can/usb/mcba_usb.c:644 [inline]
    [<000000002678a121>] mcba_usb_probe+0x27b/0x430 drivers/net/can/usb/mcba_usb.c:846
    [<000000004c730376>] usb_probe_interface+0x177/0x370 drivers/usb/core/driver.c:396
    [<00000000fb1d3651>] really_probe+0x159/0x4a0 drivers/base/dd.c:554
    [<00000000e35fd46e>] driver_probe_device+0x84/0x100 drivers/base/dd.c:740
    [<000000001f82e53d>] __device_attach_driver+0xee/0x110 drivers/base/dd.c:846
    [<00000000c694db99>] bus_for_each_drv+0xb7/0x100 drivers/base/bus.c:431
    [<00000000ba03302c>] __device_attach+0x122/0x250 drivers/base/dd.c:914
    [<0000000044f53905>] bus_probe_device+0xc6/0xe0 drivers/base/bus.c:491
    [<00000000204f6612>] device_add+0x5be/0xc30 drivers/base/core.c:3109
    [<0000000020f1c701>] usb_set_configuration+0x9d9/0xb90 drivers/usb/core/message.c:2164
    [<00000000dfca835f>] usb_generic_driver_probe+0x8c/0xc0 drivers/usb/core/generic.c:238
    [<000000006a66a2a7>] usb_probe_device+0x5c/0x140 drivers/usb/core/driver.c:293
    [<00000000fb1d3651>] really_probe+0x159/0x4a0 drivers/base/dd.c:554
    [<00000000e35fd46e>] driver_probe_device+0x84/0x100 drivers/base/dd.c:740