{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-43261",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-05-01T14:12:55.997Z",
        "datePublished": "2026-05-06T11:28:48.823Z",
        "dateUpdated": "2026-05-23T16:06:36.101Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-05-23T16:06:36.101Z"
            },
            "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."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "arch/arm64/kernel/proton-pack.c"
                    ],
                    "versions": [
                        {
                            "version": "e192c8baa69ac8a5585d61ac535aa1e5eb795e80",
                            "lessThan": "598c11dd4f4a9de31d854fcb9702f54c1c70f0d0",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "4bbfd0c280254b273c564767021bb9b0f945148e",
                            "lessThan": "a8d0ad5d990b050a6db74218a34b5529085e16b8",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "558c303c9734af5a813739cd284879227f7297d2",
                            "lessThan": "cccf96c49f61e47d9332d6a4d1c7fe9a2df44440",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "558c303c9734af5a813739cd284879227f7297d2",
                            "lessThan": "fd7e360845d331f542854d552469544182e61134",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "558c303c9734af5a813739cd284879227f7297d2",
                            "lessThan": "5dbe1f14359735fa50ba0dd4a496125b5bc7f422",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "558c303c9734af5a813739cd284879227f7297d2",
                            "lessThan": "fd51d47fcacec3ca027eb65d8c44853d3b6cea95",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "558c303c9734af5a813739cd284879227f7297d2",
                            "lessThan": "ad0c356cae164ed5dbd1f4cfd438e46faa5292cb",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "558c303c9734af5a813739cd284879227f7297d2",
                            "lessThan": "e3baa5d4b361276efeb87b20d8beced451a7dbd5",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "4dd8aae585a51a1d276911fe19096ad90144e9fe",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "3e3904125fccd042fda24294624e8f66699fd06d",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "c20d551744797000c4af993f7d59ef8c69732949",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "9013fd4bc958b33c3b4d5a2eaf4ded9857600395",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "0b2bf1b37b5ebd90e69e30d8c2d6e1cd0c1f37b4",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "5.10.105",
                            "lessThan": "5.10.252",
                            "status": "affected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.15.28",
                            "lessThan": "5.15.202",
                            "status": "affected",
                            "versionType": "semver"
                        },
                        {
                            "version": "4.9.310",
                            "lessThan": "4.10",
                            "status": "affected",
                            "versionType": "semver"
                        },
                        {
                            "version": "4.14.275",
                            "lessThan": "4.15",
                            "status": "affected",
                            "versionType": "semver"
                        },
                        {
                            "version": "4.19.236",
                            "lessThan": "4.20",
                            "status": "affected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.4.186",
                            "lessThan": "5.5",
                            "status": "affected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.16.14",
                            "lessThan": "5.17",
                            "status": "affected",
                            "versionType": "semver"
                        }
                    ]
                },
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "arch/arm64/kernel/proton-pack.c"
                    ],
                    "versions": [
                        {
                            "version": "5.17",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "5.17",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.10.252",
                            "lessThanOrEqual": "5.10.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.15.202",
                            "lessThanOrEqual": "5.15.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.165",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.128",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.75",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.16",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.19.6",
                            "lessThanOrEqual": "6.19.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.0",
                            "lessThanOrEqual": "*",
                            "status": "unaffected",
                            "versionType": "original_commit_for_fix"
                        }
                    ]
                }
            ],
            "cpeApplicability": [
                {
                    "nodes": [
                        {
                            "operator": "OR",
                            "negate": false,
                            "cpeMatch": [
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.10.105",
                                    "versionEndExcluding": "5.10.252"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.15.28",
                                    "versionEndExcluding": "5.15.202"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.17",
                                    "versionEndExcluding": "6.1.165"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.17",
                                    "versionEndExcluding": "6.6.128"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.17",
                                    "versionEndExcluding": "6.12.75"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.17",
                                    "versionEndExcluding": "6.18.16"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.17",
                                    "versionEndExcluding": "6.19.6"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.17",
                                    "versionEndExcluding": "7.0"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.9.310"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.14.275"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.19.236"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.4.186"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.16.14"
                                }
                            ]
                        }
                    ]
                }
            ],
            "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"
            }
        }
    }
}