CVE-2026-99099: x86/CPU/AMD: Fix AMD TLBI Erratum #1718
Published Oct 26, 2026
·Updated
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.
Affected Software
1 affected component
Linux Linux kernel
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Compensating control
When the microcode fix for AMD TLBI Erratum #1718 is not present, apply the software workaround using the INVLPGB/TLBSYNC instruction pair.
Event History
Oct 26, 2026
CVE Published
via MITRE·02:52 PM
Data Sourced
via MITRE·02:52 PM
Description