Linux admins,

If you've done any programming in C, you know how difficult management tasks are. These memory-related errors account for 60-70% of security bugs in low-level system code. Using Rust, a memory-safe language, reduces these risks by enforcing strict compile-time checks and safe abstractions, improving security without compromising performance.

However, Linux engineers are now concerned with a different type of threat. Read on to learn more about why Rust's unique advantages—combining speed, safety, portability, and resistance to analysis—make it attractive to adversaries seeking to build innovative and evasive malware. 

Yours in Open Source,

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Dave Wreski

LinuxSecurity Founder

The Rise of Rust-Based Malware: Memory Safety’s Double-Edged Sword

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When Rust emerged as the "memory-safe" poster child of programming languages, it didn’t take long for its influence to spread. From systems programming to infrastructure tools, Rust is being embraced in areas long dominated by C and C++. It’s cleaner, safer, and the way forward for Linux kernel modules, system utilities, and network drivers.

But while developers are rewriting the bones of critical infrastructure in Rust, attackers have also taken notice—and they’ve begun leveraging the same advantages. So while Rust makes systems safer on one hand, it’s making malware stronger on the other. And that, for Linux admins and security professionals, is where things get complex.

To be clear, Rust isn’t “inherently dangerous.” Far from it. The language is designed to eliminate a whole class of vulnerabilities—memory corruption issues like buffer overflows and use-after-free bugs are exceedingly difficult to introduce in Rust. Great for system stability, bad for exploits that rely on those flaws. But attackers are smart, adaptable types, and they’ve discovered a different angle: malware written in Rust often shields itself using the very design principles we admire about the language. For us, as defenders, this means a steep learning curve and a shift in focus. Let’s break this down.

Learn About Rust-Based Malware>>

The Security vs. Speed Dilemma: Ubuntu's Controversial Choice

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Here’s the kind of change that gets sysadmins and devs talking—and not always in agreement. Ubuntu is introducing a configuration tweak that disables Spectre-related security mitigations at the Intel Compute Runtime level, promising up to a 20% increase in GPU performance for systems running on Intel hardware.

For anyone working in GPU-heavy environments—OpenCL tasks, gaming setups, or video rendering—it’s fair to call this performance boost significant. But before you hit "install," it’s worth knowing what’s happening under the hood (okay, last time I’ll use that phrase) and what risks come with it.

The tweak involves setting the NEO_DISABLE_MITIGATIONS flag to true. Essentially, this bypasses speculative execution attack mitigations specifically for the GPU Compute Runtime. Canonical and Intel say the kernel-level Spectre protections already in place provide ample security for the majority of workloads, but removing defense layers—whether redundant or not—is something to approach carefully. Spectre and its variants introduced a new class of headaches for both CPU and GPU architecture, and while no GPU-specific exploits are currently known, cautious admins might not be ready to give this configuration a stamp of approval just yet.

Learn About Ubuntu's Decision>>