Bug 2535205 (CVE-2026-89914) - CVE-2026-89914 kernel: KVM: arm64: Sign-extend VA for range-based TLBI invalidation
Summary: CVE-2026-89914 kernel: KVM: arm64: Sign-extend VA for range-based TLBI invali...
Keywords:
Status: NEW
Alias: CVE-2026-89914
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-09-16 11:27 UTC by OSIDB Bzimport
Modified: 2026-11-03 05:02 UTC (History)
17 users (show)

Fixed In Version:
Clone Of:
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Description OSIDB Bzimport 2026-09-16 11:27:17 UTC 
In the Linux kernel, the following vulnerability has been resolved:

KVM: arm64: Sign-extend VA for range-based TLBI invalidation

When the decode_range_tlbi() helper was moved to be used for S1 TLBIs,
the required sign extension was omitted. Add it.

As a result, special care must be taken to not overflow PA bits when
this is used for S2 invalidation.
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