FKIE_CVE-2024-36965

Vulnerability from fkie_nvd - Published: 2024-06-08 13:15 - Updated: 2024-11-21 09:22
Severity ?
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: remoteproc: mediatek: Make sure IPI buffer fits in L2TCM The IPI buffer location is read from the firmware that we load to the System Companion Processor, and it's not granted that both the SRAM (L2TCM) size that is defined in the devicetree node is large enough for that, and while this is especially true for multi-core SCP, it's still useful to check on single-core variants as well. Failing to perform this check may make this driver perform R/W operations out of the L2TCM boundary, resulting (at best) in a kernel panic. To fix that, check that the IPI buffer fits, otherwise return a failure and refuse to boot the relevant SCP core (or the SCP at all, if this is single core).
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/00548ac6b14428719c970ef90adae2b3b48c0cdfPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/1d9e2de24533daca36cbf09e8d8596bf72b526b2Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/26c6d7dc8c6a9fde9d362ab2eef6390efeff145ePatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/331f91d86f71d0bb89a44217cc0b2a22810bbd42Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/36c79eb4845551e9f6d28c663b38ce0ab03b84a9Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/838b49e211d59fa827ff9df062d4020917cffbdfPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/00548ac6b14428719c970ef90adae2b3b48c0cdfPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/1d9e2de24533daca36cbf09e8d8596bf72b526b2Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/26c6d7dc8c6a9fde9d362ab2eef6390efeff145ePatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/331f91d86f71d0bb89a44217cc0b2a22810bbd42Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/36c79eb4845551e9f6d28c663b38ce0ab03b84a9Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/838b49e211d59fa827ff9df062d4020917cffbdfPatch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "EB1227F5-B622-45F2-80C8-F94E3F45859D",
              "versionEndIncluding": "5.15.160",
              "versionStartIncluding": "5.11",
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          "negate": false,
          "operator": "OR"
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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nremoteproc: mediatek: Make sure IPI buffer fits in L2TCM\n\nThe IPI buffer location is read from the firmware that we load to the\nSystem Companion Processor, and it\u0027s not granted that both the SRAM\n(L2TCM) size that is defined in the devicetree node is large enough\nfor that, and while this is especially true for multi-core SCP, it\u0027s\nstill useful to check on single-core variants as well.\n\nFailing to perform this check may make this driver perform R/W\noperations out of the L2TCM boundary, resulting (at best) in a\nkernel panic.\n\nTo fix that, check that the IPI buffer fits, otherwise return a\nfailure and refuse to boot the relevant SCP core (or the SCP at\nall, if this is single core)."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: remoteproc: mediatek: aseg\u00farese de que el b\u00fafer IPI encaje en L2TCM. La ubicaci\u00f3n del b\u00fafer IPI se lee desde el firmware que cargamos en el procesador System Companion, y no se garantiza que tanto la SRAM ( L2TCM) que se define en el nodo del \u00e1rbol de dispositivos es lo suficientemente grande para eso, y si bien esto es especialmente cierto para SCP de m\u00faltiples n\u00facleos, tambi\u00e9n es \u00fatil verificar las variantes de un solo n\u00facleo. No realizar esta verificaci\u00f3n puede hacer que este controlador realice operaciones de lectura y escritura fuera del l\u00edmite L2TCM, lo que resultar\u00e1 (en el mejor de los casos) en un p\u00e1nico en el kernel. Para solucionarlo, verifique que el b\u00fafer IPI encaje; de lo contrario, devolver\u00e1 una falla y se negar\u00e1 a iniciar el n\u00facleo SCP relevante (o el SCP en absoluto, si es de un solo n\u00facleo)."
    }
  ],
  "id": "CVE-2024-36965",
  "lastModified": "2024-11-21T09:22:55.600",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2024-06-08T13:15:57.820",
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      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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      "url": "https://git.kernel.org/stable/c/00548ac6b14428719c970ef90adae2b3b48c0cdf"
    },
    {
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      "url": "https://git.kernel.org/stable/c/838b49e211d59fa827ff9df062d4020917cffbdf"
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  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-noinfo"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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