Romain Izard c92e73b11e usb: cdc_acm: Do not leak URB buffers ...

commit f2924d4b16 upstream.

When the ACM TTY port is disconnected, the URBs it uses must be killed, and
then the buffers must be freed. Unfortunately a previous refactor removed
the code freeing the buffers because it looked extremely similar to the
code killing the URBs.

As a result, there were many new leaks for each plug/unplug cycle of a
CDC-ACM device, that were detected by kmemleak.

Restore the missing code, and the memory leak is removed.

Fixes: ba8c931ded ("cdc-acm: refactor killing urbs")
Signed-off-by: Romain Izard <romain.izard.pro@gmail.com>
Acked-by: Oliver Neukum <oneukum@suse.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2018-10-13 09:27:26 +02:00

..

cdc-acm.c

usb: cdc_acm: Do not leak URB buffers

2018-10-13 09:27:26 +02:00

cdc-acm.h

Revert "cdc-acm: implement put_char() and flush_chars()"

2018-09-26 08:38:08 +02:00

cdc-wdm.c

Revert "usb: cdc-wdm: Fix a sleep-in-atomic-context bug in service_outstanding_interrupt()"

2018-10-03 17:00:56 -07:00

Kconfig

usb: fix some references for /proc/bus/usb

2017-04-18 16:54:19 +02:00

Makefile

USB: add USB test and measurement class driver

2008-10-17 14:40:51 -07:00

usblp.c

usb: fix some references for /proc/bus/usb

2017-04-18 16:54:19 +02:00

usbtmc.c

usb: usbtmc: constify attribute_group structures.

2017-08-10 11:31:28 -07:00