CVE-2024-50061

{"id": "CVE-2024-50061", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.0, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 1.0}]}, "published": "2024-10-21T20:15:18.210", "references": [{"url": "https://git.kernel.org/stable/c/609366e7a06d035990df78f1562291c3bf0d4a12", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/687016d6a1efbfacdd2af913e2108de6b75a28d5", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/ea0256e393e0072e8c80fd941547807f0c28108b", "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\ni3c: master: cdns: Fix use after free vulnerability in cdns_i3c_master Driver Due to Race Condition\n\nIn the cdns_i3c_master_probe function, &master->hj_work is bound with\ncdns_i3c_master_hj. And cdns_i3c_master_interrupt can call\ncnds_i3c_master_demux_ibis function to start the work.\n\nIf we remove the module which will call cdns_i3c_master_remove to\nmake cleanup, it will free master->base through i3c_master_unregister\nwhile the work mentioned above will be used. The sequence of operations\nthat may lead to a UAF bug is as follows:\n\nCPU0 CPU1\n\n | cdns_i3c_master_hj\ncdns_i3c_master_remove |\ni3c_master_unregister(&master->base) |\ndevice_unregister(&master->dev) |\ndevice_release |\n//free master->base |\n | i3c_master_do_daa(&master->base)\n | //use master->base\n\nFix it by ensuring that the work is canceled before proceeding with\nthe cleanup in cdns_i3c_master_remove."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: i3c: master: cdns: Arreglar la vulnerabilidad de use after free en el controlador cdns_i3c_master debido a la condici\u00f3n de ejecuci\u00f3n En la funci\u00f3n cdns_i3c_master_probe, &master->hj_work est\u00e1 vinculado con cdns_i3c_master_hj. Y cdns_i3c_master_interrupt puede llamar a la funci\u00f3n cnds_i3c_master_demux_ibis para iniciar el trabajo. Si eliminamos el m\u00f3dulo que llamar\u00e1 a cdns_i3c_master_remove para realizar la limpieza, liberar\u00e1 master->base a trav\u00e9s de i3c_master_unregister mientras se usar\u00e1 el trabajo mencionado anteriormente. La secuencia de operaciones que pueden provocar un error de UAF es la siguiente: CPU0 CPU1 | cdns_i3c_master_hj cdns_i3c_master_remove | Corr\u00edjalo asegur\u00e1ndose de que el trabajo se cancele antes de continuar con la limpieza en cdns_i3c_master_remove."}], "lastModified": "2024-10-23T21:48:29.030", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "D50B3F37-2EA9-4348-B50C-34DCAAF2076E", "versionEndExcluding": "6.6.57"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "AA84D336-CE9A-4535-B901-1AD77EC17C34", "versionEndExcluding": "6.11.4", "versionStartIncluding": "6.7"}], "operator": "OR"}]}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}