{"api_version":"1","generated_at":"2026-08-23T21:08:16+00:00","cve":"CVE-2026-64497","urls":{"html":"https://cve.report/CVE-2026-64497","api":"https://cve.report/api/cve/CVE-2026-64497.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-64497","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-64497"},"summary":{"title":"iio: chemical: scd30: Cleanup initializations and fix sign-extension bug","description":"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.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-07-25 10:17:35","updated_at":"2026-08-17 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Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-64497","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 64b3d8b1b0f5c16c19045785e4da8391ae35ec99 0ccff849bde90973e6c13a666f6ceab5c55b30d4 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 64b3d8b1b0f5c16c19045785e4da8391ae35ec99 1821bcacd8ac5b214c53be16cbb8172bf193f0b6 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 64b3d8b1b0f5c16c19045785e4da8391ae35ec99 40bb0fdb37f441c9c9f52bf58bbd8a0ca3cc9598 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 64b3d8b1b0f5c16c19045785e4da8391ae35ec99 b131f0011dfef72350f4e3f11df94dc3e6b46065 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 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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."}],"providerMetadata":{"dateUpdated":"2026-08-17T04:56:45.940Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"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"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-64497","datePublished":"2026-07-25T08:51:53.917Z","dateReserved":"2026-07-19T15:36:31.792Z","dateUpdated":"2026-08-17T04:56:45.940Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-07-25 10:17:35","lastModifiedDate":"2026-08-17 05:17:55","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"64497","Ordinal":"1","Title":"iio: chemical: scd30: Cleanup initializations and fix sign-exten","CVE":"CVE-2026-64497","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"64497","Ordinal":"1","NoteData":"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.","Type":"Description","Title":"iio: chemical: scd30: Cleanup initializations and fix sign-exten"}]}}}