CVE-2026-64497

{"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": 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"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": 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"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"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/iio/chemical/scd30_core.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "0ccff849bde90973e6c13a666f6ceab5c55b30d4", "status": "affected", "version": "64b3d8b1b0f5c16c19045785e4da8391ae35ec99", "versionType": "git"}, {"lessThan": "1821bcacd8ac5b214c53be16cbb8172bf193f0b6", "status": "affected", "version": "64b3d8b1b0f5c16c19045785e4da8391ae35ec99", "versionType": "git"}, {"lessThan": "40bb0fdb37f441c9c9f52bf58bbd8a0ca3cc9598", "status": "affected", "version": "64b3d8b1b0f5c16c19045785e4da8391ae35ec99", "versionType": "git"}, {"lessThan": "b131f0011dfef72350f4e3f11df94dc3e6b46065", "status": "affected", "version": "64b3d8b1b0f5c16c19045785e4da8391ae35ec99", "versionType": "git"}, {"lessThan": "8d4a46e971cf846bda98b20d4cabfa21c1276e5f", "status": "affected", "version": "64b3d8b1b0f5c16c19045785e4da8391ae35ec99", "versionType": "git"}, {"lessThan": "82accdd57404399eddf3d56fd9beda7c61307388", "status": "affected", "version": "64b3d8b1b0f5c16c19045785e4da8391ae35ec99", "versionType": "git"}, {"lessThan": "d49ff54b2784aa56a7c97982de713604de89d23a", "status": "affected", "version": "64b3d8b1b0f5c16c19045785e4da8391ae35ec99", "versionType": "git"}, {"lessThan": "60d877910a43c305b5165131b258a17b1d772d57", "status": "affected", "version": "64b3d8b1b0f5c16c19045785e4da8391ae35ec99", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/iio/chemical/scd30_core.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "5.9"}, {"lessThan": "5.9", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "5.10.*", "status": "unaffected", "version": "5.10.261", "versionType": "semver"}, {"lessThanOrEqual": "5.15.*", "status": "unaffected", "version": "5.15.212", "versionType": "semver"}, {"lessThanOrEqual": "6.1.*", "status": "unaffected", "version": "6.1.178", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.145", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.96", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.39", "versionType": "semver"}, {"lessThanOrEqual": "7.1.*", "status": "unaffected", "version": "7.1.4", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.2", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "cveTags": [], "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."}], "id": "CVE-2026-64497", "lastModified": "2026-11-03T18:15:39.353", "metrics": {}, "published": "2026-07-25T10:17:35.623", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/0ccff849bde90973e6c13a666f6ceab5c55b30d4"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/1821bcacd8ac5b214c53be16cbb8172bf193f0b6"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/40bb0fdb37f441c9c9f52bf58bbd8a0ca3cc9598"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/60d877910a43c305b5165131b258a17b1d772d57"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/82accdd57404399eddf3d56fd9beda7c61307388"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/8d4a46e971cf846bda98b20d4cabfa21c1276e5f"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/b131f0011dfef72350f4e3f11df94dc3e6b46065"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/d49ff54b2784aa56a7c97982de713604de89d23a"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Awaiting Analysis"}

{"bugzilla": {"description": "kernel: iio: chemical: scd30: Cleanup initializations and fix sign-extension bug", "id": "2507056", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2507056"}, "csaw": false, "cwe": "CWE-681", "details": ["A flaw was found in the Linux kernel's iio: chemical: scd30 driver, which manages a specific type of sensor. This vulnerability involves an error in how the driver processes numerical data, specifically a 'sign-extension bug' that can corrupt a part of a floating-point number called the exponent. This corruption could lead to the sensor providing inaccurate readings or cause the system to behave unexpectedly."], "name": "CVE-2026-64497", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-07-25T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-64497\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-64497\nhttps://lore.kernel.org/linux-cve-announce/2026072551-CVE-2026-64497-00c3@gregkh/T"]}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[64b3d8b1b0f5c16c19045785e4da8391ae35ec99,0ccff849bde90973e6c13a666f6ceab5c55b30d4)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[64b3d8b1b0f5c16c19045785e4da8391ae35ec99,1821bcacd8ac5b214c53be16cbb8172bf193f0b6)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[64b3d8b1b0f5c16c19045785e4da8391ae35ec99,40bb0fdb37f441c9c9f52bf58bbd8a0ca3cc9598)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[64b3d8b1b0f5c16c19045785e4da8391ae35ec99,8d4a46e971cf846bda98b20d4cabfa21c1276e5f)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[64b3d8b1b0f5c16c19045785e4da8391ae35ec99,82accdd57404399eddf3d56fd9beda7c61307388)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[64b3d8b1b0f5c16c19045785e4da8391ae35ec99,b131f0011dfef72350f4e3f11df94dc3e6b46065)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[64b3d8b1b0f5c16c19045785e4da8391ae35ec99,d49ff54b2784aa56a7c97982de713604de89d23a)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[64b3d8b1b0f5c16c19045785e4da8391ae35ec99,60d877910a43c305b5165131b258a17b1d772d57)"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "5.9"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[0,5.9)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[5.10.261,5.11.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[5.15.212,5.16.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.1.178,6.2.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.6.145,6.7.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.12.96,6.13.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.39,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.1.4,7.2.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.2-rc1,*]"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "created": "2026-07-25T21:45:16.674445+00:00", "updated": "2026-08-03T18:30:06.640467+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}