Linux end users may not have to worry about malware too often, but apparently, folks who like to roll their own code still draw the attention of hackers. Kernel.org, the online repository of the Linux kernel, is reporting that it fell victim to a security breach in August. Don’t start screaming and unplugging your Ubuntu PCs just quite yet, though – the administrators believe the attack only compromised users who accessed the kernel.org site, and not the Linux source code itself.