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CVE-2026-89734

Estado: RecibidaSin puntuar—

In the Linux kernel, the following vulnerability has been resolved:

usb: gadget: uvc: Fix null pointer dereference in uvcg_video_init()

In uvcg_video_init(), if kthread_run_worker() fails, the error logged uses uvcg_err(), however, the pointer it uses: video->uvc is not assigned at this point, triggering a null pointer dereference. Fix this by directly using uvc->func which is assigned already.

CVSS

NVD no ha asignado puntuación CVSS a esta CVE (habitual desde el cambio de política de abril de 2026).

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.

Linux — Linux KernelAI

Referencias

JSON original (NVD)

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{
  "id": "CVE-2026-89734",
  "cveTags": [],
  "metrics": {},
  "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": "f0bbfbd16b3b67106535299d6a9ca3a5565494a6",
              "lessThan": "dbe2762ae8e543b06c57f1ac6512b02fd3fd09b2",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "f0bbfbd16b3b67106535299d6a9ca3a5565494a6",
              "lessThan": "d511e015d06767f52bb18d48371cab6d7cb88433",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "f0bbfbd16b3b67106535299d6a9ca3a5565494a6",
              "lessThan": "5b1da38592efdc1a263d4c0353298cba19e9d6fc",
              "versionType": "git"
            }
          ],
          "programFiles": [
            "drivers/usb/gadget/function/uvc_video.c"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.13"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "6.13",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "6.18.50",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "status": "unaffected",
              "version": "7.2.4",
              "versionType": "semver",
              "lessThanOrEqual": "7.2.*"
            },
            {
              "status": "unaffected",
              "version": "7.3-rc1",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ],
          "programFiles": [
            "drivers/usb/gadget/function/uvc_video.c"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2026-09-11T20:20:03.860",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/5b1da38592efdc1a263d4c0353298cba19e9d6fc",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/d511e015d06767f52bb18d48371cab6d7cb88433",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/dbe2762ae8e543b06c57f1ac6512b02fd3fd09b2",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Received",
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nusb: gadget: uvc: Fix null pointer dereference in uvcg_video_init()\n\nIn uvcg_video_init(), if kthread_run_worker() fails,\nthe error logged uses uvcg_err(), however, the pointer it uses:\nvideo->uvc is not assigned at this point, triggering a null\npointer dereference. Fix this by directly using uvc->func which\nis assigned already."
    }
  ],
  "lastModified": "2026-09-11T20:20:03.860",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}