{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-64497",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-07-19T15:36:31.792Z",
        "datePublished": "2026-07-25T08:51:53.917Z",
        "dateUpdated": "2026-08-17T04:56:45.940Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-08-17T04:56:45.940Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\niio: chemical: scd30: Cleanup initializations and fix sign-extension bug\n\nInclude linux/bitfield.h for FIELD_GET().\n\nCreate new macros for bit manipulation in combination with manual bit\nmanipulation being replaced with FIELD_GET().\n\nThe current variable declaration and initializations are barely readable\nand use comma separations across multiple lines. Refactor the\ninitializations so that mantissa and exp have separate declarations and\nsign gets initialized later.\n\nIn addition (and due to the nature of the cleanup), fix a sign-extension\nbug where, float32 would get bitwise anded with ~BIT(31)\n(which is 0xFFFFFFFF7FFFFFFF) which corrupted the exponent."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/iio/chemical/scd30_core.c"
                    ],
                    "versions": [
                        {
                            "version": "64b3d8b1b0f5c16c19045785e4da8391ae35ec99",
                            "lessThan": "0ccff849bde90973e6c13a666f6ceab5c55b30d4",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "64b3d8b1b0f5c16c19045785e4da8391ae35ec99",
                            "lessThan": "1821bcacd8ac5b214c53be16cbb8172bf193f0b6",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "64b3d8b1b0f5c16c19045785e4da8391ae35ec99",
                            "lessThan": "40bb0fdb37f441c9c9f52bf58bbd8a0ca3cc9598",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "64b3d8b1b0f5c16c19045785e4da8391ae35ec99",
                            "lessThan": "b131f0011dfef72350f4e3f11df94dc3e6b46065",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "64b3d8b1b0f5c16c19045785e4da8391ae35ec99",
                            "lessThan": "8d4a46e971cf846bda98b20d4cabfa21c1276e5f",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "64b3d8b1b0f5c16c19045785e4da8391ae35ec99",
                            "lessThan": "82accdd57404399eddf3d56fd9beda7c61307388",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "64b3d8b1b0f5c16c19045785e4da8391ae35ec99",
                            "lessThan": "d49ff54b2784aa56a7c97982de713604de89d23a",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "64b3d8b1b0f5c16c19045785e4da8391ae35ec99",
                            "lessThan": "60d877910a43c305b5165131b258a17b1d772d57",
                            "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/iio/chemical/scd30_core.c"
                    ],
                    "versions": [
                        {
                            "version": "5.9",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "5.9",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.10.261",
                            "lessThanOrEqual": "5.10.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.15.212",
                            "lessThanOrEqual": "5.15.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.178",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.145",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.96",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.39",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.1.4",
                            "lessThanOrEqual": "7.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.2",
                            "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": "5.9",
                                    "versionEndExcluding": "5.10.261"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.9",
                                    "versionEndExcluding": "5.15.212"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.9",
                                    "versionEndExcluding": "6.1.178"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.9",
                                    "versionEndExcluding": "6.6.145"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.9",
                                    "versionEndExcluding": "6.12.96"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.9",
                                    "versionEndExcluding": "6.18.39"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.9",
                                    "versionEndExcluding": "7.1.4"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.9",
                                    "versionEndExcluding": "7.2"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/0ccff849bde90973e6c13a666f6ceab5c55b30d4"
                },
                {
                    "url": "https://git.kernel.org/stable/c/1821bcacd8ac5b214c53be16cbb8172bf193f0b6"
                },
                {
                    "url": "https://git.kernel.org/stable/c/40bb0fdb37f441c9c9f52bf58bbd8a0ca3cc9598"
                },
                {
                    "url": "https://git.kernel.org/stable/c/b131f0011dfef72350f4e3f11df94dc3e6b46065"
                },
                {
                    "url": "https://git.kernel.org/stable/c/8d4a46e971cf846bda98b20d4cabfa21c1276e5f"
                },
                {
                    "url": "https://git.kernel.org/stable/c/82accdd57404399eddf3d56fd9beda7c61307388"
                },
                {
                    "url": "https://git.kernel.org/stable/c/d49ff54b2784aa56a7c97982de713604de89d23a"
                },
                {
                    "url": "https://git.kernel.org/stable/c/60d877910a43c305b5165131b258a17b1d772d57"
                }
            ],
            "title": "iio: chemical: scd30: Cleanup initializations and fix sign-extension bug",
            "x_generator": {
                "engine": "bippy-1.2.0"
            }
        }
    }
}