CVE-2026-43261 (GCVE-0-2026-43261)
Vulnerability from cvelistv5
Published
2026-05-06 11:28
Modified
2026-05-23 16:06
Severity ?
Summary
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.
References
Impacted products
Vendor Product Version
Linux Linux Version: e192c8baa69ac8a5585d61ac535aa1e5eb795e80
Version: 4bbfd0c280254b273c564767021bb9b0f945148e
Version: 558c303c9734af5a813739cd284879227f7297d2
Version: 558c303c9734af5a813739cd284879227f7297d2
Version: 558c303c9734af5a813739cd284879227f7297d2
Version: 558c303c9734af5a813739cd284879227f7297d2
Version: 558c303c9734af5a813739cd284879227f7297d2
Version: 558c303c9734af5a813739cd284879227f7297d2
Version: 4dd8aae585a51a1d276911fe19096ad90144e9fe
Version: 3e3904125fccd042fda24294624e8f66699fd06d
Version: c20d551744797000c4af993f7d59ef8c69732949
Version: 9013fd4bc958b33c3b4d5a2eaf4ded9857600395
Version: 0b2bf1b37b5ebd90e69e30d8c2d6e1cd0c1f37b4
Version: 5.10.105   ≤
Version: 5.15.28   ≤
Version: 4.9.310   ≤
Version: 4.14.275   ≤
Version: 4.19.236   ≤
Version: 5.4.186   ≤
Version: 5.16.14   ≤
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{
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            },
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        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
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          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
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            },
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              "status": "unaffected",
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            },
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            },
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            },
            {
              "lessThanOrEqual": "6.19.*",
              "status": "unaffected",
              "version": "6.19.6",
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            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.0",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
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              "negate": false,
              "operator": "OR"
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      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\narm64: Add support for TSV110 Spectre-BHB mitigation\n\nThe TSV110 processor is vulnerable to the Spectre-BHB (Branch History\nBuffer) attack, which can be exploited to leak information through\nbranch prediction side channels. This commit adds the MIDR of TSV110\nto the list for software mitigation."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-23T16:06:36.101Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/598c11dd4f4a9de31d854fcb9702f54c1c70f0d0"
        },
        {
          "url": "https://git.kernel.org/stable/c/a8d0ad5d990b050a6db74218a34b5529085e16b8"
        },
        {
          "url": "https://git.kernel.org/stable/c/cccf96c49f61e47d9332d6a4d1c7fe9a2df44440"
        },
        {
          "url": "https://git.kernel.org/stable/c/fd7e360845d331f542854d552469544182e61134"
        },
        {
          "url": "https://git.kernel.org/stable/c/5dbe1f14359735fa50ba0dd4a496125b5bc7f422"
        },
        {
          "url": "https://git.kernel.org/stable/c/fd51d47fcacec3ca027eb65d8c44853d3b6cea95"
        },
        {
          "url": "https://git.kernel.org/stable/c/ad0c356cae164ed5dbd1f4cfd438e46faa5292cb"
        },
        {
          "url": "https://git.kernel.org/stable/c/e3baa5d4b361276efeb87b20d8beced451a7dbd5"
        }
      ],
      "title": "arm64: Add support for TSV110 Spectre-BHB mitigation",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-43261",
    "datePublished": "2026-05-06T11:28:48.823Z",
    "dateReserved": "2026-05-01T14:12:55.997Z",
    "dateUpdated": "2026-05-23T16:06:36.101Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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