Live › vulnerability › CVE-2026-99099
Go to dashboardOn some AMD processors, an INVLPGB/TLBSYNC instruction pair can fail to invalidate a TLB entry. The kernel now detects the erratum and applies a software workaround when no microcode fix is present.
Summary written from the sources below. Check the originals before acting.
First seen by InfraStack 2026-10-26 16:02 UTC. All times on this page are UTC.
Systems running Linux on AMD x86 processors affected by erratum #1718, where the microcode fix is absent. The sources do not say which AMD models are affected, or what an attacker could do with stale TLB entries. Teams on non-AMD hardware can skip it.
No product ranges from the sources yet.
Each row is the first time that source carried this signal. The analyst’s rows are its own findings.
In the Linux kernel, the following vulnerability has been resolved:
x86/CPU/AMD: Fix AMD TLBI Erratum #1718
The processor may fail to invalidate a TLB entry while executing an INVLPGB/TLBSYNC instruction pair.
Detect the erratum and apply a software workaround when a microcode fix is not present.
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