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linux-uconsole/drivers/usb/misc
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Zqiang 7b0f1f89a0 usb: usbtest: fix missing kfree(dev->buf) in usbtest_disconnect 
[ Upstream commit 28ebeb8db7 ]

BUG: memory leak
unreferenced object 0xffff888055046e00 (size 256):
  comm "kworker/2:9", pid 2570, jiffies 4294942129 (age 1095.500s)
  hex dump (first 32 bytes):
    00 70 04 55 80 88 ff ff 18 bb 5a 81 ff ff ff ff  .p.U......Z.....
    f5 96 78 81 ff ff ff ff 37 de 8e 81 ff ff ff ff  ..x.....7.......
  backtrace:
    [<00000000d121dccf>] kmemleak_alloc_recursive
include/linux/kmemleak.h:43 [inline]
    [<00000000d121dccf>] slab_post_alloc_hook mm/slab.h:586 [inline]
    [<00000000d121dccf>] slab_alloc_node mm/slub.c:2786 [inline]
    [<00000000d121dccf>] slab_alloc mm/slub.c:2794 [inline]
    [<00000000d121dccf>] kmem_cache_alloc_trace+0x15e/0x2d0 mm/slub.c:2811
    [<000000005c3c3381>] kmalloc include/linux/slab.h:555 [inline]
    [<000000005c3c3381>] usbtest_probe+0x286/0x19d0
drivers/usb/misc/usbtest.c:2790
    [<000000001cec6910>] usb_probe_interface+0x2bd/0x870
drivers/usb/core/driver.c:361
    [<000000007806c118>] really_probe+0x48d/0x8f0 drivers/base/dd.c:551
    [<00000000a3308c3e>] driver_probe_device+0xfc/0x2a0 drivers/base/dd.c:724
    [<000000003ef66004>] __device_attach_driver+0x1b6/0x240
drivers/base/dd.c:831
    [<00000000eee53e97>] bus_for_each_drv+0x14e/0x1e0 drivers/base/bus.c:431
    [<00000000bb0648d0>] __device_attach+0x1f9/0x350 drivers/base/dd.c:897
    [<00000000838b324a>] device_initial_probe+0x1a/0x20 drivers/base/dd.c:944
    [<0000000030d501c1>] bus_probe_device+0x1e1/0x280 drivers/base/bus.c:491
    [<000000005bd7adef>] device_add+0x131d/0x1c40 drivers/base/core.c:2504
    [<00000000a0937814>] usb_set_configuration+0xe84/0x1ab0
drivers/usb/core/message.c:2030
    [<00000000e3934741>] generic_probe+0x6a/0xe0 drivers/usb/core/generic.c:210
    [<0000000098ade0f1>] usb_probe_device+0x90/0xd0
drivers/usb/core/driver.c:266
    [<000000007806c118>] really_probe+0x48d/0x8f0 drivers/base/dd.c:551
    [<00000000a3308c3e>] driver_probe_device+0xfc/0x2a0 drivers/base/dd.c:724

Acked-by: Alan Stern <stern@rowland.harvard.edu>
Reported-by: Kyungtae Kim <kt0755@gmail.com>
Signed-off-by: Zqiang <qiang.zhang@windriver.com>
Link: https://lore.kernel.org/r/20200612035210.20494-1-qiang.zhang@windriver.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-07-09 09:37:09 +02:00
..
sisusbvga USB: sisusbvga: Change port variable from signed to unsigned 2020-04-29 16:31:26 +02:00
adutux.c USB: adutux: fix interface sanity check 2019-12-17 20:34:40 +01:00
appledisplay.c appledisplay: fix error handling in the scheduled work 2019-12-01 09:17:42 +01:00
chaoskey.c USB: chaoskey: fix error case of a timeout 2019-12-01 09:17:41 +01:00
cypress_cy7c63.c
cytherm.c
ehset.c
emi26.c
emi62.c
ezusb.c
ftdi-elan.c
idmouse.c USB: idmouse: fix interface sanity checks 2019-12-17 20:34:38 +01:00
iowarrior.c USB: misc: iowarrior: add support for the 100 device 2020-02-28 16:38:45 +01:00
isight_firmware.c
Kconfig USB: rio500: Remove Rio 500 kernel driver 2019-10-17 13:44:47 -07:00
ldusb.c USB: ldusb: use unsigned size format specifiers 2019-11-12 19:21:08 +01:00
legousbtower.c USB: legousbtower: fix a signedness bug in tower_probe() 2019-11-06 13:06:12 +01:00
lvstest.c
Makefile USB: rio500: Remove Rio 500 kernel driver 2019-10-17 13:44:47 -07:00
trancevibrator.c
usb251xb.c
usb3503.c
usb4604.c
usb_u132.h
usblcd.c USB: usblcd: fix I/O after disconnect 2019-10-17 13:45:04 -07:00
usbsevseg.c
usbtest.c usb: usbtest: fix missing kfree(dev->buf) in usbtest_disconnect 2020-07-09 09:37:09 +02:00
uss720.c
yurex.c USB: yurex: fix NULL-derefs on disconnect 2019-10-17 13:44:49 -07:00