Bug 2467118 (CVE-2026-43261) - CVE-2026-43261 kernel: arm64: Add support for TSV110 Spectre-BHB mitigation
Summary: CVE-2026-43261 kernel: arm64: Add support for TSV110 Spectre-BHB mitigation
Keywords:
Status: NEW
Alias: CVE-2026-43261
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-05-06 13:05 UTC by OSIDB Bzimport
Modified: 2026-05-06 23:40 UTC (History)
2 users (show)

Fixed In Version:
Clone Of:
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Description OSIDB Bzimport 2026-05-06 13:05:14 UTC 
In the Linux kernel, the following vulnerability has been resolved:

arm64: Add support for TSV110 Spectre-BHB mitigation

The TSV110 processor is vulnerable to the Spectre-BHB (Branch History
Buffer) attack, which can be exploited to leak information through
branch prediction side channels. This commit adds the MIDR of TSV110
to the list for software mitigation.
Comment 1 Keith Grant 2026-05-06 23:39:04 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2026050607-CVE-2026-43261-d70e@gregkh/T
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