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Linux Kernel Update Beefs Up Security and Graphics Support

06-04-2012

Linux Kernel Update Beefs Up Security and Graphics Support

The new Linux kernel now offers early support for Nvidia's GeForce 600 "Kepler" GPU along with AMD's new Radeon 7xxx and Trinity APU series. Experimental support for Intel's GMA500 Medfield graphics targeting smartphones is included as well.

The new "Yama" security module, meanwhile, joins several others that are already part of the kernel, including AppArmor, but adds a number of new systemwide security protections. Yama restricts the ptrace interface, for example, so that processes can't "see" each other's memory.

Then, too, there's a new x32 ABI that aims to make it possible for programs to run in 64-bit mode but using 32-bit pointers and 32-bit-long C type. That way, "applications who need it can enjoy the performance of the 64-bit mode, but with the memory requirements of a 32-bit ABI," as the kernel's release notes explain.

Mobile devices could especially benefit from that new capability.

Reference: http://kernelnewbies.org/Linux_3.4

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