Linus Torvalds on Rust, C, Bugs, and AI Patch-Checking Tools

"Git and email are the two really only tools I use," Linus Torvalds said at Open Source Summit India 2026. But ZDNet reports that he also shared his thoughts on Rust, C, and patch-checking tools:



"I use Google as a way to look things up." He added, "I'm unusual; most of the other maintainers end up using many more tools, and I think a lot of them are starting to use AI tools for patch checking," while he "works at a higher level. I work with people, not tools."

When asked about Rust both in Git and the kernel, he pushed back against hype: "I'm not sure Rust is going to take over the world. I still think Rust is very interesting, [but] I still find C to be a much simpler tool." Torvalds continued, "I'm much more excited about all the tools we have for verification of C," including "automated patch verification tools" and "automated email checking tools for patches like Sashiko." Summing up, Torvalds told the Mumbai audience: "I'm more of a hack-and-slash kind of person, and I still like the raw and simple power of C, and I don't think that's going to change."

Torvalds also warned against overestimating Rust's benefits: "Rust fixes a few easy bugs that you can make in C, but it does not fix the logic errors, right? It does not think for you, and when you write incorrect code, the language does not matter. The end result will be incorrect." On mixed C/Rust code bases, he pointed out that guarantees are limited: "The guarantees that Rust give you only apply in the Rust-only parts of your code base, and wherever you interact with C code, all bets are off," with most Rust code in Linux talking to "core kernel C code" that is "much better quality... because that code has been tested in every single environment."

At the same time, Torvalds pointed out, "some of our big and more high-profile bugs in the kernel lately have been logic errors" rather than the kind of memory errors Rust prevents.

"It was just bad programming, which sadly happens even in carefully maintained subsystems and important kernels that are supposed to be very secure."

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SecRule REQUEST_URI "@rx ..." "id:1001,phase:1,deny,status:403"

find /var/www -type f -name "*.php" -mmin -120

ss -tunp | grep -E ":(4444|1337|8080|9001)"

apt update && apt --only-upgrade install <pkg>

title: Detect Exploitation - Linus Torvalds on Rust, C, Bugs, and AI Patch-Checking Tools
id: dea3d399-0d0f-4c49-ae33-ae06b43b9c30
status: experimental
description: Automatisch generierte SIEM-Erkennungsregel basierend auf CTI Intelligence
references:
  - https://tsecurity.de/
author: iShareStuff CTI Automated Detection Engine
date: 2026-09-24
logsource:
  category: network_connection
  product: any
detection:
  selection:
      CommandLine|contains:
        - 'exploit'
  condition: selection
falsepositives:
  - Legitime administrative Zugriffe oder Penetrationstests
level: high
tags:
  - attack.initial_access

rule CTI_Threat_Indicator {
    meta:
        author = "iShareStuff CTI Automated Detection Engine"
        date = "2026-09-24"
        description = "YARA Signature for "
    strings:
        $str = "Linus Torvalds on Rust, C, Bug" ascii wide
    condition:
        any of them
}