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(parent: 5018860) | patch
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)
commitfa1e11d5231c001c80a479160b5832933c5d35fb
tree5f10a8edfd7a4060285f60694cd8a68d20047278tree
parent5018860321dc7a9e50a75d5f319bc981298fb5b7commit | diff
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 diff | blob | history
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