CVE-2026-31527

{"id": "CVE-2026-31527", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-31527", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-11-05T21:37:40.862642Z"}}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.8, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 1.8}]}, "affected": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "affectedData": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "3d713e0e382e6fcfb4bba1501645b66c129ad60b", "lessThan": "492349e5e4a369a8b62781100a3ade470bf1ce6b", "versionType": "git"}, {"status": "affected", "version": "3d713e0e382e6fcfb4bba1501645b66c129ad60b", "lessThan": "9a6086d2a828dd2ff74cf9abcae456670febd71f", "versionType": "git"}, {"status": "affected", "version": "3d713e0e382e6fcfb4bba1501645b66c129ad60b", "lessThan": "7c02a9bd7d14a89065fcf672b86d8e1d1a41d3b1", "versionType": "git"}, {"status": "affected", "version": "3d713e0e382e6fcfb4bba1501645b66c129ad60b", "lessThan": "edee7ee5a14c3b33f6d54641f5af5c5e9180992d", "versionType": "git"}, {"status": "affected", "version": "3d713e0e382e6fcfb4bba1501645b66c129ad60b", "lessThan": "2b38efc05bf7a8568ec74bfffea0f5cfa62bc01d", "versionType": "git"}], "programFiles": ["drivers/base/platform.c", "drivers/bus/simple-pm-bus.c", "drivers/clk/imx/clk-scu.c", "drivers/slimbus/qcom-ngd-ctrl.c", "include/linux/platform_device.h", "sound/soc/samsung/i2s.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "3.17"}, {"status": "unaffected", "version": "0", "lessThan": "3.17", "versionType": "semver"}, {"status": "unaffected", "version": "6.6.142", "versionType": "semver", "lessThanOrEqual": "6.6.*"}, {"status": "unaffected", "version": "6.12.80", "versionType": "semver", "lessThanOrEqual": "6.12.*"}, {"status": "unaffected", "version": "6.18.21", "versionType": "semver", "lessThanOrEqual": "6.18.*"}, {"status": "unaffected", "version": "6.19.11", "versionType": "semver", "lessThanOrEqual": "6.19.*"}, {"status": "unaffected", "version": "7.0", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["drivers/base/platform.c", "drivers/bus/simple-pm-bus.c", "drivers/clk/imx/clk-scu.c", "drivers/slimbus/qcom-ngd-ctrl.c", "include/linux/platform_device.h", "sound/soc/samsung/i2s.c"], "defaultStatus": "affected"}]}], "published": "2026-04-22T14:16:52.903", "references": [{"url": "https://git.kernel.org/stable/c/2b38efc05bf7a8568ec74bfffea0f5cfa62bc01d", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/492349e5e4a369a8b62781100a3ade470bf1ce6b", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/7c02a9bd7d14a89065fcf672b86d8e1d1a41d3b1", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/9a6086d2a828dd2ff74cf9abcae456670febd71f", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/edee7ee5a14c3b33f6d54641f5af5c5e9180992d", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-416"}]}], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndriver core: platform: use generic driver_override infrastructure\n\nWhen a driver is probed through __driver_attach(), the bus' match()\ncallback is called without the device lock held, thus accessing the\ndriver_override field without a lock, which can cause a UAF.\n\nFix this by using the driver-core driver_override infrastructure taking\ncare of proper locking internally.\n\nNote that calling match() from __driver_attach() without the device lock\nheld is intentional. [1]"}, {"lang": "es", "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\ndriver core: platform: usar infraestructura gen\u00e9rica de driver_override\n\nCuando un controlador es sondeado a trav\u00e9s de __driver_attach(), se llama a la funci\u00f3n de devoluci\u00f3n de llamada match() del bus sin el bloqueo del dispositivo adquirido, accediendo as\u00ed al campo driver_override sin un bloqueo, lo que puede causar un UAF.\n\nEsto se soluciona usando la infraestructura de driver_override del driver-core, gestionando internamente el bloqueo adecuado.\n\nTenga en cuenta que llamar a match() desde __driver_attach() sin el bloqueo del dispositivo adquirido es intencional. [1]"}], "lastModified": "2026-11-11T23:10:00.263", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "564BF73E-2070-41D2-8204-794C46879E01", "versionEndExcluding": "6.12.80", "versionStartIncluding": "3.17"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "ED39847A-3B46-4729-B7CA-B2C30B9FA8FE", "versionEndExcluding": "6.18.21", "versionStartIncluding": "6.13"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "4CA2E747-A9EC-4518-9AA2-B4247FC748B7", "versionEndExcluding": "6.19.11", "versionStartIncluding": "6.19"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:7.0:rc1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "F253B622-8837-4245-BCE5-A7BF8FC76A16"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:7.0:rc2:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "4AE85AD8-4641-4E7C-A2F4-305E2CD9EE64"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:7.0:rc3:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "F666C8D8-6538-46D4-B318-87610DE64C34"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:7.0:rc4:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "02259FDA-961B-47BC-AE7F-93D7EC6E90C2"}], "operator": "OR"}]}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}