arm64: Add support for TSV110 Spectre-BHB mitigation

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Summary

CVECVE-2026-43261
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-05-06 12:16:47 UTC
Updated2026-05-08 20:37:34 UTC
DescriptionIn 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.

Risk And Classification

Primary CVSS: v3.1 5.5 MEDIUM from [email protected]

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Problem Types: NVD-CWE-noinfo

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Linux Linux Kernel All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected e192c8baa69ac8a5585d61ac535aa1e5eb795e80 598c11dd4f4a9de31d854fcb9702f54c1c70f0d0 git Not specified
CNA Linux Linux affected 4bbfd0c280254b273c564767021bb9b0f945148e a8d0ad5d990b050a6db74218a34b5529085e16b8 git Not specified
CNA Linux Linux affected 558c303c9734af5a813739cd284879227f7297d2 cccf96c49f61e47d9332d6a4d1c7fe9a2df44440 git Not specified
CNA Linux Linux affected 558c303c9734af5a813739cd284879227f7297d2 fd7e360845d331f542854d552469544182e61134 git Not specified
CNA Linux Linux affected 558c303c9734af5a813739cd284879227f7297d2 5dbe1f14359735fa50ba0dd4a496125b5bc7f422 git Not specified
CNA Linux Linux affected 558c303c9734af5a813739cd284879227f7297d2 fd51d47fcacec3ca027eb65d8c44853d3b6cea95 git Not specified
CNA Linux Linux affected 558c303c9734af5a813739cd284879227f7297d2 ad0c356cae164ed5dbd1f4cfd438e46faa5292cb git Not specified
CNA Linux Linux affected 558c303c9734af5a813739cd284879227f7297d2 e3baa5d4b361276efeb87b20d8beced451a7dbd5 git Not specified
CNA Linux Linux affected 4dd8aae585a51a1d276911fe19096ad90144e9fe git Not specified
CNA Linux Linux affected 3e3904125fccd042fda24294624e8f66699fd06d git Not specified
CNA Linux Linux affected c20d551744797000c4af993f7d59ef8c69732949 git Not specified
CNA Linux Linux affected 9013fd4bc958b33c3b4d5a2eaf4ded9857600395 git Not specified
CNA Linux Linux affected 0b2bf1b37b5ebd90e69e30d8c2d6e1cd0c1f37b4 git Not specified
CNA Linux Linux affected 5.17 Not specified
CNA Linux Linux unaffected 5.17 semver Not specified
CNA Linux Linux unaffected 5.10.252 5.10.* semver Not specified
CNA Linux Linux unaffected 5.15.202 5.15.* semver Not specified
CNA Linux Linux unaffected 6.1.165 6.1.* semver Not specified
CNA Linux Linux unaffected 6.6.128 6.6.* semver Not specified
CNA Linux Linux unaffected 6.12.75 6.12.* semver Not specified
CNA Linux Linux unaffected 6.18.16 6.18.* semver Not specified
CNA Linux Linux unaffected 6.19.6 6.19.* semver Not specified
CNA Linux Linux unaffected 7.0 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/a8d0ad5d990b050a6db74218a34b5529085e16b8 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/5dbe1f14359735fa50ba0dd4a496125b5bc7f422 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/ad0c356cae164ed5dbd1f4cfd438e46faa5292cb 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/e3baa5d4b361276efeb87b20d8beced451a7dbd5 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/fd51d47fcacec3ca027eb65d8c44853d3b6cea95 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/cccf96c49f61e47d9332d6a4d1c7fe9a2df44440 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/598c11dd4f4a9de31d854fcb9702f54c1c70f0d0 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/fd7e360845d331f542854d552469544182e61134 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
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