{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-46007",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-05-13T15:03:33.092Z",
        "datePublished": "2026-05-27T12:56:06.623Z",
        "dateUpdated": "2026-06-14T17:47:37.205Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-06-14T17:47:37.205Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nhwmon: (powerz) Avoid cacheline sharing for DMA buffer\n\nDepending on the architecture the transfer buffer may share a cacheline\nwith the following mutex. As the buffer may be used for DMA, that is\nproblematic.\n\nUse the high-level DMA helpers to make sure that cacheline sharing can\nnot happen.\n\nAlso drop the comment, as the helpers are documentation enough.\n\nhttps://sashiko.dev/#/message/20260408175814.934BFC19421%40smtp.kernel.org"
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/hwmon/powerz.c"
                    ],
                    "versions": [
                        {
                            "version": "4381a36abdf1c5c0323c1c51f869dc000115eb20",
                            "lessThan": "270e5c576a6e30f6b337fa91d35b44c241297533",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "4381a36abdf1c5c0323c1c51f869dc000115eb20",
                            "lessThan": "1869da3efe703b016b23d4885f3fe6c1751959c6",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "4381a36abdf1c5c0323c1c51f869dc000115eb20",
                            "lessThan": "2fa2273016a0483217404cfe330967c4ac6832a9",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "4381a36abdf1c5c0323c1c51f869dc000115eb20",
                            "lessThan": "3023c050af3600bf451153335dea5e073c9a3088",
                            "status": "affected",
                            "versionType": "git"
                        }
                    ]
                },
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/hwmon/powerz.c"
                    ],
                    "versions": [
                        {
                            "version": "6.7",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "6.7",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.88",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.30",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.0.4",
                            "lessThanOrEqual": "7.0.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.1",
                            "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": "6.7",
                                    "versionEndExcluding": "6.12.88"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.7",
                                    "versionEndExcluding": "6.18.30"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.7",
                                    "versionEndExcluding": "7.0.4"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.7",
                                    "versionEndExcluding": "7.1"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/270e5c576a6e30f6b337fa91d35b44c241297533"
                },
                {
                    "url": "https://git.kernel.org/stable/c/1869da3efe703b016b23d4885f3fe6c1751959c6"
                },
                {
                    "url": "https://git.kernel.org/stable/c/2fa2273016a0483217404cfe330967c4ac6832a9"
                },
                {
                    "url": "https://git.kernel.org/stable/c/3023c050af3600bf451153335dea5e073c9a3088"
                }
            ],
            "title": "hwmon: (powerz) Avoid cacheline sharing for DMA buffer",
            "x_generator": {
                "engine": "bippy-1.2.0"
            }
        }
    }
}