New Interrupt Injection Attack Can Bypass Spectre v2 Defenses on Intel and AMD CPUs
- ID
- 11638
- Status
- summarized
- Published
- 07 Aug 2026, 12:17 AM
- Fetched
- 07 Aug 2026, 12:51 AM
- Provider
- The Hacker News
- Category
- security
- Original URL
- https://thehackernews.com/2026/08/new-interrupt-injection-attack-can.html
- Source URL
- https://feeds.feedburner.com/TheHackersNews
Excerpt
An unprivileged Linux program can time a hardware interrupt to land in the gap between a processor sanitizing its branch predictor and the kernel using it, re-poisoning the predictor after the defense has run. MIT CSAIL researchers Daniël Trujillo and Mengjia Yan named the technique INTERRUPT INJECTION. On an AMD Zen 2 machine running Linux 6.14 with every default Spectre v2 mitigation on,
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