]> git.baikalelectronics.ru Git - kernel.git/commit
USB: ch341: fix use-after-free in TIOCMIWAIT
authorJohan Hovold <jhovold@gmail.com>
Tue, 19 Mar 2013 08:21:12 +0000 (09:21 +0100)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Thu, 21 Mar 2013 22:59:03 +0000 (15:59 -0700)
commit98f1e9028e4b2e7e069a0e572a7f86177696da8d
tree5f10a8edfd7a4060285f60694cd8a68d20047278
parent259459d5cb0ceec88871f7756d4570ee265b6541
USB: ch341: fix use-after-free in TIOCMIWAIT

Use the port wait queue and make sure to check the serial disconnected
flag before accessing private port data after waking up.

This is is needed as the private port data (including the wait queue
itself) can be gone when waking up after a disconnect.

Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/usb/serial/ch341.c