tree 261871504ea83df81488ac36e567e36de08c9b7a
parent c39772d82ad453647ea4bf9d793010d86ef5e597
author Oliver Neukum <oneukum@suse.de> 1187673042 +0200
committer Greg Kroah-Hartman <gregkh@suse.de> 1187818078 -0700

USB: fix DoS in pwc USB video driver

the pwc driver has a disconnect method that waits for user space to
close the device. This opens up an opportunity for a DoS attack,
blocking the USB subsystem and making khubd's task busy wait in
kernel space. This patch shifts freeing resources to close if an opened
device is disconnected.

Signed-off-by: Oliver Neukum <oneukum@suse.de>
CC: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>