CVE-2011-0711

La función xfs_fs_geometry de fs/xfs/xfs_fsops.c del kernel de Linux en versiones anteriores a la 2.6.38-rc6-git3 no inicializa un miembro determinado de una estructura, lo que permite a usuarios locales obtener información potencialmente sensible de la memoria de la pila del kernel a través de una llamada ioctl FSGEOMETRY_V1.

Dan Rosenberg discovered that IRDA did not correctly check the size of buffers. On non-x86 systems, a local attacker could exploit this to read kernel heap memory, leading to a loss of privacy. Dan Rosenburg discovered that the CAN subsystem leaked kernel addresses into the /proc filesystem. A local attacker could use this to increase the chances of a successful memory corruption exploit. Kees Cook discovered that the IOWarrior USB device driver did not correctly check certain size fields. A local attacker with physical access could plug in a specially crafted USB device to crash the system or potentially gain root privileges. Various other issues were also addressed.