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USB: usbfs: fix potential infoleak in devio
The stack object “ci” has a total size of 8 bytes. Its last 3 bytes are padding bytes which are not initialized and leaked to userland via “copy_to_user”. Signed-off-by: Kangjie Lu <kjlu@gatech.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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