memory leak in atusb

memory leak in atusb_probe
Status: upstream: reported C repro on 2020/11/13 17:17
Reported-by: syzbot+28a246747e0a465127f3@syzkaller.appspotmail.com
First crash: 20d, last: 1d14h

Sample crash report:

BUG: memory leak
unreferenced object 0xffff88810fb56f00 (size 192):
  comm "kworker/0:2", pid 3831, jiffies 4294942325 (age 13.430s)
  hex dump (first 32 bytes):
    01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
    00 00 00 00 00 00 00 00 18 6f b5 0f 81 88 ff ff  .........o......
  backtrace:
    [<00000000890e1748>] kmalloc include/linux/slab.h:557 [inline]
    [<00000000890e1748>] usb_alloc_urb+0x66/0xe0 drivers/usb/core/urb.c:74
    [<000000002dae5637>] atusb_alloc_urbs drivers/net/ieee802154/atusb.c:362 [inline]
    [<000000002dae5637>] atusb_probe+0x158/0x820 drivers/net/ieee802154/atusb.c:1038
    [<00000000d60dd3eb>] usb_probe_interface+0x177/0x370 drivers/usb/core/driver.c:396
    [<00000000baa2d516>] really_probe+0x159/0x480 drivers/base/dd.c:554
    [<0000000004b4a5e4>] driver_probe_device+0x84/0x100 drivers/base/dd.c:738
    [<00000000b75ebd01>] __device_attach_driver+0xee/0x110 drivers/base/dd.c:844
    [<00000000460585b5>] bus_for_each_drv+0xb7/0x100 drivers/base/bus.c:431
    [<000000001b50b59a>] __device_attach+0x122/0x250 drivers/base/dd.c:912
    [<000000006c075ed1>] bus_probe_device+0xc6/0xe0 drivers/base/bus.c:491
    [<000000001a88617d>] device_add+0x5ac/0xc30 drivers/base/core.c:2936
    [<00000000fed3e8a3>] usb_set_configuration+0x9de/0xb90 drivers/usb/core/message.c:2159
    [<000000001e481a79>] usb_generic_driver_probe+0x8c/0xc0 drivers/usb/core/generic.c:238
    [<000000001d8207cb>] usb_probe_device+0x5c/0x140 drivers/usb/core/driver.c:293
    [<00000000baa2d516>] really_probe+0x159/0x480 drivers/base/dd.c:554
    [<0000000004b4a5e4>] driver_probe_device+0x84/0x100 drivers/base/dd.c:738
    [<00000000b75ebd01>] __device_attach_driver+0xee/0x110 drivers/base/dd.c:844

Crashes (8):
Manager	Time	Kernel	Commit	Syzkaller	Config	Log	Report	Syz repro	C repro	Maintainers
ci-upstream-gce-leak	2020/12/02 08:18	upstream	509a1542	c42a35e9	.config	log	report	syz	C	alex.aring@gmail.com, davem@davemloft.net, kuba@kernel.org, linux-kernel@vger.kernel.org, linux-wpan@vger.kernel.org, netdev@vger.kernel.org, stefan@datenfreihafen.org
ci-upstream-gce-leak	2020/12/01 16:32	upstream	b6505459	07bfe8a5	.config	log	report	syz	C	alex.aring@gmail.com, davem@davemloft.net, kuba@kernel.org, linux-kernel@vger.kernel.org, linux-wpan@vger.kernel.org, netdev@vger.kernel.org, stefan@datenfreihafen.org
ci-upstream-gce-leak	2020/12/01 13:02	upstream	b6505459	b3a34598	.config	log	report	syz	C	alex.aring@gmail.com, davem@davemloft.net, kuba@kernel.org, linux-kernel@vger.kernel.org, linux-wpan@vger.kernel.org, netdev@vger.kernel.org, stefan@datenfreihafen.org
ci-upstream-gce-leak	2020/11/30 13:00	upstream	b6505459	a0092f9d	.config	log	report	syz	C	eli.billauer@gmail.com, gregkh@linuxfoundation.org, gustavoars@kernel.org, ingrassia@epigenesys.com, linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org, stern@rowland.harvard.edu, tiwai@suse.de
ci-upstream-gce-leak	2020/11/29 04:35	upstream	45e885c4	a0092f9d	.config	log	report	syz	C	eli.billauer@gmail.com, gregkh@linuxfoundation.org, gustavoars@kernel.org, ingrassia@epigenesys.com, linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org, oneukum@suse.com, tiwai@suse.de
ci-upstream-gce-leak	2020/11/24 06:03	upstream	d5beb314	1ab681a4	.config	log	report	syz	C	eli.billauer@gmail.com, gregkh@linuxfoundation.org, gustavoars@kernel.org, ingrassia@epigenesys.com, linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org, oneukum@suse.com, stern@rowland.harvard.edu, tiwai@suse.de
ci-upstream-gce-leak	2020/11/17 15:22	upstream	9c87c9f4	bd2a760b	.config	log	report	syz	C	eli.billauer@gmail.com, gregkh@linuxfoundation.org, gustavoars@kernel.org, ingrassia@epigenesys.com, linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org, oneukum@suse.com, stern@rowland.harvard.edu, tiwai@suse.de
ci-upstream-gce-leak	2020/11/13 00:37	upstream	af5043c8	16fca0c8	.config	log	report	syz	C	eli.billauer@gmail.com, gregkh@linuxfoundation.org, gustavoars@kernel.org, ingrassia@epigenesys.com, linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org, oneukum@suse.com, stern@rowland.harvard.edu, tiwai@suse.de