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(parent: bdd48bf) | 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)
commit447477a9d6e00c3939434f5a8221b5f46bd16d54
tree5f10a8edfd7a4060285f60694cd8a68d20047278tree | snapshot
parentbdd48bf0eee9e7413cdc77ff683c0c498f2df509commit | 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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