cve-2024-42282
Vulnerability from cvelistv5
Published
2024-08-17 09:08
Modified
2024-12-19 09:15
Severity ?
Summary
net: mediatek: Fix potential NULL pointer dereference in dummy net_device handling
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/16f3a28cf5f876a7f3550d8f4c870a7b41bcfaefPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/af6bd5c9901b13a26eaf4d57d97a813297791596Patch
Impacted products
LinuxLinux
LinuxLinux
Show details on NVD website

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                "id": "CVE-2024-42282",
                "options": [
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                    "Exploitation": "none"
                  },
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                    "Automatable": "no"
                  },
                  {
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                "role": "CISA Coordinator",
                "timestamp": "2024-09-10T16:11:33.179796Z",
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          "product": "Linux",
          "programFiles": [
            "drivers/net/ethernet/mediatek/mtk_eth_soc.c"
          ],
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          "vendor": "Linux",
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      "descriptions": [
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          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: mediatek: Fix potential NULL pointer dereference in dummy net_device handling\n\nMove the freeing of the dummy net_device from mtk_free_dev() to\nmtk_remove().\n\nPreviously, if alloc_netdev_dummy() failed in mtk_probe(),\neth-\u003edummy_dev would be NULL. The error path would then call\nmtk_free_dev(), which in turn called free_netdev() assuming dummy_dev\nwas allocated (but it was not), potentially causing a NULL pointer\ndereference.\n\nBy moving free_netdev() to mtk_remove(), we ensure it\u0027s only called when\nmtk_probe() has succeeded and dummy_dev is fully allocated. This\naddresses a potential NULL pointer dereference detected by Smatch[1]."
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          "url": "https://git.kernel.org/stable/c/16f3a28cf5f876a7f3550d8f4c870a7b41bcfaef"
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      "title": "net: mediatek: Fix potential NULL pointer dereference in dummy net_device handling",
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    "assignerShortName": "Linux",
    "cveId": "CVE-2024-42282",
    "datePublished": "2024-08-17T09:08:49.145Z",
    "dateReserved": "2024-07-30T07:40:12.262Z",
    "dateUpdated": "2024-12-19T09:15:34.934Z",
    "state": "PUBLISHED"
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    "nvd": "{\"cve\":{\"id\":\"CVE-2024-42282\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-08-17T09:15:09.090\",\"lastModified\":\"2024-08-19T19:53:45.483\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nnet: mediatek: Fix potential NULL pointer dereference in dummy net_device handling\\n\\nMove the freeing of the dummy net_device from mtk_free_dev() to\\nmtk_remove().\\n\\nPreviously, if alloc_netdev_dummy() failed in mtk_probe(),\\neth-\u003edummy_dev would be NULL. The error path would then call\\nmtk_free_dev(), which in turn called free_netdev() assuming dummy_dev\\nwas allocated (but it was not), potentially causing a NULL pointer\\ndereference.\\n\\nBy moving free_netdev() to mtk_remove(), we ensure it\u0027s only called when\\nmtk_probe() has succeeded and dummy_dev is fully allocated. This\\naddresses a potential NULL pointer dereference detected by Smatch[1].\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: net: mediatek: corrige la posible desreferencia del puntero NULL en el manejo del net_device ficticio. Mueva la liberaci\u00f3n del net_device ficticio de mtk_free_dev() a mtk_remove(). Anteriormente, si alloc_netdev_dummy() fallaba en mtk_probe(), eth-\u0026gt;dummy_dev ser\u00eda NULL. La ruta de error luego llamar\u00eda a mtk_free_dev(), que a su vez llamar\u00eda a free_netdev() suponiendo que dummy_dev estuviera asignado (pero no lo estaba), causando potencialmente una desreferencia del puntero NULL. Al mover free_netdev() a mtk_remove(), nos aseguramos de que solo se llame cuando mtk_probe() haya tenido \u00e9xito y dummy_dev est\u00e9 completamente asignado. Esto soluciona una posible desreferencia de puntero NULL detectada por Smatch[1].\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\",\"baseScore\":5.5,\"baseSeverity\":\"MEDIUM\"},\"exploitabilityScore\":1.8,\"impactScore\":3.6}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-476\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.10\",\"versionEndExcluding\":\"6.10.3\",\"matchCriteriaId\":\"21DC7A88-E88C-4C44-9AFB-CBB30134097C\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/16f3a28cf5f876a7f3550d8f4c870a7b41bcfaef\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/af6bd5c9901b13a26eaf4d57d97a813297791596\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]}]}}"
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}


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