Linux 7.4 To Land New BTB CTX Isolation Feature Of AMD Zen 6
Linux 7.4 To Land New BTB CTX Isolation Feature Of AMD Zen 6 Written by Michael Larabel in AMD on 5 October 2026 at 02:47 PM EDT. Add A Comment The Linux 7.4 kernel is set to introduce support for a new AMD Zen 6 security feature. Adding to the Zen 6 related patches queuing up ahead of the Linux 7.4 merge window later this month is enabling support for the new Branch Target Buffer Context "BTB CTX" Isolation feature.
- ▪Linux 7.4 To Land New BTB CTX Isolation Feature Of AMD Zen 6 Written by Michael Larabel in AMD on 5 October 2026 at 02:47 PM EDT.
- ▪Add A Comment The Linux 7.4 kernel is set to introduce support for a new AMD Zen 6 security feature.
- ▪Adding to the Zen 6 related patches queuing up ahead of the Linux 7.4 merge window later this month is enabling support for the new Branch Target Buffer Context "BTB CTX" Isolation feature.
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| Original publisher | Phoronix |
| Canonical URL | https://www.phoronix.com/news/AMD-Zen-6-BTB-CTX-Linux-7.4 |
| Publication time | Mon, 05 Oct 2026 14:47:01 -0400 |
| Retrieval time | 2026-10-05T19:59:57.191Z |
| Last seen | 2026-10-05T20:00:06.009Z |
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Linux 7.4 To Land New BTB CTX Isolation Feature Of AMD Zen 6 Written by Michael Larabel in AMD on 5 October 2026 at 02:47 PM EDT. Add A Comment The Linux 7.4 kernel is set to introduce support for a new AMD Zen 6 security feature. Adding to the Zen 6 related patches queuing up ahead of the Linux 7.4 merge window later this month is enabling support for the new Branch Target Buffer Context "BTB CTX" Isolation feature. BTB CTX Isolation is a new security defense against SRSO, the Speculative Return Stack Overflow vulnerability that affected Zen 1 to Zen 4 CPUs. BTB CTX Isolation will isolate the different user/kernel and guest/host contexts from one another.
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