]> git.karo-electronics.de Git - linux-beck.git/commit
USB: serial: io_ti: fix NULL-deref at open
authorJohan Hovold <johan@kernel.org>
Tue, 3 Jan 2017 15:39:43 +0000 (16:39 +0100)
committerJohan Hovold <johan@kernel.org>
Wed, 4 Jan 2017 09:37:16 +0000 (10:37 +0100)
commita323fefc6f5079844dc62ffeb54f491d0242ca35
tree21b46137e1594c18848940ba22cb49a0738e78aa
parent0dd408425eb21ddf26a692b3c8044c9e7d1a7948
USB: serial: io_ti: fix NULL-deref at open

Fix NULL-pointer dereference when clearing halt at open should a
malicious device lack the expected endpoints when in download mode.

Unable to handle kernel NULL pointer dereference at virtual address 00000030
...
[<bf011ed8>] (edge_open [io_ti]) from [<bf000118>] (serial_port_activate+0x68/0x98 [usbserial])
[<bf000118>] (serial_port_activate [usbserial]) from [<c0470ca4>] (tty_port_open+0x9c/0xe8)
[<c0470ca4>] (tty_port_open) from [<bf000da0>] (serial_open+0x48/0x6c [usbserial])
[<bf000da0>] (serial_open [usbserial]) from [<c0469178>] (tty_open+0xcc/0x5cc)

Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
drivers/usb/serial/io_ti.c