fkie_cve-2024-50030
Vulnerability from fkie_nvd
Published
2024-10-21 20:15
Modified
2024-10-25 14:06
Severity ?
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: drm/xe/ct: prevent UAF in send_recv() Ensure we serialize with completion side to prevent UAF with fence going out of scope on the stack, since we have no clue if it will fire after the timeout before we can erase from the xa. Also we have some dependent loads and stores for which we need the correct ordering, and we lack the needed barriers. Fix this by grabbing the ct->lock after the wait, which is also held by the completion side. v2 (Badal): - Also print done after acquiring the lock and seeing timeout. (cherry picked from commit 52789ce35c55ccd30c4b67b9cc5b2af55e0122ea)
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/8ed7dd4c55e4fb21531a9645aeb66a30eaf43a46Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/db7f92af626178ba59dbbcdd5dee9ec24a987a88Patch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel 6.12
linux linux_kernel 6.12


To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
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              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "C354E062-80AD-4947-809C-E798BC6AAA39",
              "versionEndExcluding": "6.11.4",
              "versionStartIncluding": "6.8",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:6.12:rc1:*:*:*:*:*:*",
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          "operator": "OR"
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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/xe/ct: prevent UAF in send_recv()\n\nEnsure we serialize with completion side to prevent UAF with fence going\nout of scope on the stack, since we have no clue if it will fire after\nthe timeout before we can erase from the xa. Also we have some dependent\nloads and stores for which we need the correct ordering, and we lack the\nneeded barriers. Fix this by grabbing the ct-\u003elock after the wait, which\nis also held by the completion side.\n\nv2 (Badal):\n - Also print done after acquiring the lock and seeing timeout.\n\n(cherry picked from commit 52789ce35c55ccd30c4b67b9cc5b2af55e0122ea)"
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: drm/xe/ct: evitar UAF en send_recv() Asegurarnos de que serializamos con el lado de finalizaci\u00f3n para evitar que UAF con valla salga del \u00e1mbito en la pila, ya que no tenemos ni idea de si se activar\u00e1 despu\u00e9s del tiempo de espera antes de que podamos borrar del xa. Tambi\u00e9n tenemos algunas cargas y almacenamientos dependientes para los que necesitamos el orden correcto, y carecemos de las barreras necesarias. Arregla esto tomando el ct-\u0026gt;lock despu\u00e9s de la espera, que tambi\u00e9n est\u00e1 retenido por el lado de finalizaci\u00f3n. v2 (Badal): - Tambi\u00e9n se imprime despu\u00e9s de adquirir el bloqueo y ver el tiempo de espera. (seleccionado de el commit 52789ce35c55ccd30c4b67b9cc5b2af55e0122ea)"
    }
  ],
  "id": "CVE-2024-50030",
  "lastModified": "2024-10-25T14:06:40.707",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 7.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 5.9,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2024-10-21T20:15:16.290",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/8ed7dd4c55e4fb21531a9645aeb66a30eaf43a46"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-416"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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