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authorJohan Hovold <johan@kernel.org>2017-03-06 19:36:40 +0300
committerJohan Hovold <johan@kernel.org>2017-03-08 18:14:39 +0300
commit654b404f2a222f918af9b0cd18ad469d0c941a8e (patch)
treeb7e70ce55058ed9d8e8581e152457e3a42b22b5b /drivers/usb/renesas_usbhs
parent367ec1706745912702c187722065285cd4d2aee7 (diff)
downloadlinux-654b404f2a222f918af9b0cd18ad469d0c941a8e.tar.xz
USB: serial: io_ti: fix information leak in completion handler
Add missing sanity check to the bulk-in completion handler to avoid an integer underflow that can be triggered by a malicious device. This avoids leaking 128 kB of memory content from after the URB transfer buffer to user space. Fixes: 8c209e6782ca ("USB: make actual_length in struct urb field u32") Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") Cc: stable <stable@vger.kernel.org> # 2.6.30 Signed-off-by: Johan Hovold <johan@kernel.org>
Diffstat (limited to 'drivers/usb/renesas_usbhs')
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