{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-64227", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-07-19T15:36:31.771Z", "datePublished": "2026-07-24T15:23:10.936Z", "dateUpdated": "2026-07-27T04:37:25.776Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-07-27T04:37:25.776Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nACPI: driver: Check ACPI_COMPANION() against NULL during probe\n\nSince every platform driver can be forced to match a device that doesn't\nmatch its list of device IDs because of device_match_driver_override(),\nplatform drivers that rely on the existence of a device's ACPI companion\nobject should verify its presence.\n\nAccordingly, add requisite ACPI_COMPANION() or ACPI_HANDLE() checks\nagainst NULL to 13 platform drivers handling core ACPI devices.\n\nAlso change the value returned by the ACPI thermal zone driver when\nthe device's ACPI companion is not present to -ENODEV for consistency\nwith the other drivers."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/acpi/ac.c", "drivers/acpi/acpi_pad.c", "drivers/acpi/acpi_tad.c", "drivers/acpi/battery.c", "drivers/acpi/button.c", "drivers/acpi/ec.c", "drivers/acpi/hed.c", "drivers/acpi/nfit/core.c", "drivers/acpi/pfr_telemetry.c", "drivers/acpi/pfr_update.c", "drivers/acpi/sbs.c", "drivers/acpi/sbshc.c", "drivers/acpi/thermal.c", "drivers/acpi/tiny-power-button.c"], "versions": [{"version": "5829046825ac89fffc60f2670bc564fda2c0155a", "lessThan": "a9451bf561232314755baf69a5916e0ac77f33fc", "status": "affected", "versionType": "git"}, {"version": "5829046825ac89fffc60f2670bc564fda2c0155a", "lessThan": "34f4d0e4e5065237d15651df759a99e81b7f9f51", "status": "affected", "versionType": "git"}, {"version": "5829046825ac89fffc60f2670bc564fda2c0155a", "lessThan": "612ddab8fce04394bd7aebe8e0f2599642e30859", "status": "affected", "versionType": "git"}, {"version": "5829046825ac89fffc60f2670bc564fda2c0155a", "lessThan": "e4865a56d013e86e46ea6acea15bb6eae01898ff", "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/acpi/ac.c", "drivers/acpi/acpi_pad.c", "drivers/acpi/acpi_tad.c", "drivers/acpi/battery.c", "drivers/acpi/button.c", "drivers/acpi/ec.c", "drivers/acpi/hed.c", "drivers/acpi/nfit/core.c", "drivers/acpi/pfr_telemetry.c", "drivers/acpi/pfr_update.c", "drivers/acpi/sbs.c", "drivers/acpi/sbshc.c", "drivers/acpi/thermal.c", "drivers/acpi/tiny-power-button.c"], "versions": [{"version": "6.7", "status": "affected"}, {"version": "0", "lessThan": "6.7", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.97", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.40", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.0.11", "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": "6.12.97"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.7", "versionEndExcluding": "6.18.40"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.7", "versionEndExcluding": "7.0.11"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.7", "versionEndExcluding": "7.1"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/a9451bf561232314755baf69a5916e0ac77f33fc"}, {"url": "https://git.kernel.org/stable/c/34f4d0e4e5065237d15651df759a99e81b7f9f51"}, {"url": "https://git.kernel.org/stable/c/612ddab8fce04394bd7aebe8e0f2599642e30859"}, {"url": "https://git.kernel.org/stable/c/e4865a56d013e86e46ea6acea15bb6eae01898ff"}], "title": "ACPI: driver: Check ACPI_COMPANION() against NULL during probe", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{}

{"bugzilla": {"description": "kernel: ACPI: driver: Check ACPI_COMPANION() against NULL during probe", "id": "2506775", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2506775"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "details": ["No description is available for this CVE."], "name": "CVE-2026-64227", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "impact": "moderate", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "impact": "moderate", "package_name": "libkrun", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "impact": "moderate", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Fix deferred", "impact": "moderate", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Fix deferred", "impact": "moderate", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "impact": "moderate", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "impact": "moderate", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "impact": "moderate", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "impact": "moderate", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/a:redhat:enterprise_linux_nvidia:", "fix_state": "Out of support scope", "impact": "moderate", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux for NVIDIA 26"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Fix deferred", "impact": "moderate", "package_name": "rhcos", "product_name": "Red Hat OpenShift Container Platform 4"}], "public_date": "2026-07-24T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-64227\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-64227\nhttps://lore.kernel.org/linux-cve-announce/2026072418-CVE-2026-64227-4d4b@gregkh/T"], "threat_severity": "Low"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[1da177e4c3f41524e886b7f1b8a0c1fc7321cac2,f1e12d81f9cd250e722da01c7670b518d4181406)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[1da177e4c3f41524e886b7f1b8a0c1fc7321cac2,a9451bf561232314755baf69a5916e0ac77f33fc)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[1da177e4c3f41524e886b7f1b8a0c1fc7321cac2,34f4d0e4e5065237d15651df759a99e81b7f9f51)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[1da177e4c3f41524e886b7f1b8a0c1fc7321cac2,612ddab8fce04394bd7aebe8e0f2599642e30859)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[1da177e4c3f41524e886b7f1b8a0c1fc7321cac2,e4865a56d013e86e46ea6acea15bb6eae01898ff)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,6.6.145)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,6.12.97)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,6.18.40)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,7.0.11)"}}], "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": "unaffected", "versions": {"scheme": "semver", "value": "[6.6.145,6.7.0]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.12.97,6.13.0]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.40,6.19.0]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.0.11,7.1.0]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.1,*]"}}], "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": "2026-07-24T21:00:07.930384+00:00", "updated": "2026-07-28T16:30:17.881538+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"], "weaknesses": ["CWE-476"]}