kernel: drivers/sound/pci/rme9652/hdspm.c: reading uninitialized stack memory

The sndhdspmhwdepioctl function in sound/pci/rme9652/hdspm.c in the Linux kernel before 2.6.36-rc6 does not initialize a certain structure, which allows local users to obtain potentially sensitive information from kernel stack memory via an SNDRVHDSPMIOCTLGETCONFIGINFO ioctl call...