CVE-2026-46308

{"id": "CVE-2026-46308", "cveTags": [], "metrics": {"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": "c29345fa5f66bea0790cf2219f57b974d4fc177b", "lessThan": "cb27e43c0511e9e1ca8818d231656070b11c18cf", "versionType": "git"}, {"status": "affected", "version": "c29345fa5f66bea0790cf2219f57b974d4fc177b", "lessThan": "38d8410021b55d226847b2ac8d189d89fe5a8866", "versionType": "git"}, {"status": "affected", "version": "c29345fa5f66bea0790cf2219f57b974d4fc177b", "lessThan": "ec1fcddb3117d9452210e838fd37389ee61e10e8", "versionType": "git"}], "programFiles": ["drivers/pmdomain/mediatek/mtk-pm-domains.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "6.18"}, {"status": "unaffected", "version": "0", "lessThan": "6.18", "versionType": "semver"}, {"status": "unaffected", "version": "6.18.30", "versionType": "semver", "lessThanOrEqual": "6.18.*"}, {"status": "unaffected", "version": "7.0.7", "versionType": "semver", "lessThanOrEqual": "7.0.*"}, {"status": "unaffected", "version": "7.1", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["drivers/pmdomain/mediatek/mtk-pm-domains.c"], "defaultStatus": "affected"}]}], "published": "2026-06-08T17:16:49.707", "references": [{"url": "https://git.kernel.org/stable/c/38d8410021b55d226847b2ac8d189d89fe5a8866", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/cb27e43c0511e9e1ca8818d231656070b11c18cf", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/ec1fcddb3117d9452210e838fd37389ee61e10e8", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "vulnStatus": "Analyzed", "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\npmdomain: mediatek: fix use-after-free in scpsys_get_bus_protection_legacy()\n\nIn scpsys_get_bus_protection_legacy(), of_find_node_with_property()\nreturns a device node with its reference count incremented. The function\nthen calls of_node_put(node) before checking whether\nsyscon_regmap_lookup_by_phandle() returns an error. If an error occurs,\ndev_err_probe() dereferences the node pointer to print diagnostic\ninformation, but the node memory may have already been freed due to the\nearlier of_node_put(), leading to a use-after-free vulnerability.\n\nFix this by moving the of_node_put() call after the error check, ensuring\nthe node is still valid when accessed in the error path."}, {"lang": "es", "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\npmdomain: mediatek: soluciona el uso despu\u00e9s de liberaci\u00f3n en scpsys_get_bus_protection_legacy()\n\nEn scpsys_get_bus_protection_legacy(), of_find_node_with_property() devuelve un nodo de dispositivo con su contador de referencias incrementado. La funci\u00f3n luego llama a of_node_put(node) antes de verificar si syscon_regmap_lookup_by_phandle() devuelve un error. Si ocurre un error, dev_err_probe() desreferencia el puntero del nodo para imprimir informaci\u00f3n de diagn\u00f3stico, pero la memoria del nodo puede haber sido liberada ya debido a la llamada anterior a of_node_put(), lo que lleva a una vulnerabilidad de uso despu\u00e9s de liberaci\u00f3n.\n\nEsto se soluciona moviendo la llamada a of_node_put() despu\u00e9s de la verificaci\u00f3n de errores, asegurando que el nodo siga siendo v\u00e1lido cuando se accede a \u00e9l en la ruta de error."}], "lastModified": "2026-07-23T08:10:00.137", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "9EB9FADE-E22F-41C2-9790-4F5564D59E62", "versionEndExcluding": "6.18.30", "versionStartIncluding": "6.18"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "D0893CA7-9AE6-4DFE-AC75-48967D73AD8E", "versionEndExcluding": "7.0.7", "versionStartIncluding": "6.19"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:7.1:rc1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "B1EF7059-E670-45F4-B422-54C40FA86390"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:7.1:rc2:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "0D38F0BF-A728-4133-A358-D44A2F7EE6D6"}], "operator": "OR"}]}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}