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CVE-2026-90216

Estado: RecibidaSin puntuar—

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

ubi: Fix rollback for explicit UBI device numbers

ubi_init_attach() rolls back module initialization failures by scanning ubi_devices[0..i-1], where i is the mtd= parameter index. That assumes the parameter index matches the UBI device number.

That assumption is not true when mtd= specifies an explicit ubi_num. A successfully attached device can be stored at a higher ubi_devices[] slot, and a later failure can miss it during rollback.

Scan the full ubi_devices[] array and detach by the actual array index, matching the way UBI devices are stored.

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-2026-90216",
  "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": "83ff59a066637a6c28844bbf43009459408240f4",
              "lessThan": "83c978921688af40dcab6db74882d1ff9b0b765c",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "83ff59a066637a6c28844bbf43009459408240f4",
              "lessThan": "6b92e66ec6dd8019e8efb2a568ef7c967c5a18c5",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "83ff59a066637a6c28844bbf43009459408240f4",
              "lessThan": "4417ab6ecad01cf2d01045ef8104c95a66b0e893",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "83ff59a066637a6c28844bbf43009459408240f4",
              "lessThan": "552e565ed8846e7db143e4a6bdf3f5677453c686",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "83ff59a066637a6c28844bbf43009459408240f4",
              "lessThan": "9754f049d5f1945d4c691d1f52824eb8daf8f9be",
              "versionType": "git"
            },
            {
              "status": "affected",
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              "lessThan": "e3f7e58189bc222971ddc860f1716f37e51ba996",
              "versionType": "git"
            },
            {
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              "versionType": "git"
            }
          ],
          "programFiles": [
            "drivers/mtd/ubi/build.c"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "3.11"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "3.11",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "5.10.270",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "status": "unaffected",
              "version": "5.15.221",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "status": "unaffected",
              "version": "6.1.188",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "status": "unaffected",
              "version": "6.6.157",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "status": "unaffected",
              "version": "6.12.110",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "status": "unaffected",
              "version": "6.18.52",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "status": "unaffected",
              "version": "7.2.6",
              "versionType": "semver",
              "lessThanOrEqual": "7.2.*"
            },
            {
              "status": "unaffected",
              "version": "7.3-rc1",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ],
          "programFiles": [
            "drivers/mtd/ubi/build.c"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2026-09-17T17:17:16.900",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/4417ab6ecad01cf2d01045ef8104c95a66b0e893",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/552e565ed8846e7db143e4a6bdf3f5677453c686",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/5b0a6b554e12a97f9771a9a9f4ea1f5457373c73",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/6b92e66ec6dd8019e8efb2a568ef7c967c5a18c5",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/83c978921688af40dcab6db74882d1ff9b0b765c",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/87b3da4acb860605643ebee312178f13b20744cf",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/9754f049d5f1945d4c691d1f52824eb8daf8f9be",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/e3f7e58189bc222971ddc860f1716f37e51ba996",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Received",
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nubi: Fix rollback for explicit UBI device numbers\n\nubi_init_attach() rolls back module initialization failures by scanning\nubi_devices[0..i-1], where i is the mtd= parameter index. That assumes\nthe parameter index matches the UBI device number.\n\nThat assumption is not true when mtd= specifies an explicit ubi_num. A\nsuccessfully attached device can be stored at a higher ubi_devices[]\nslot, and a later failure can miss it during rollback.\n\nScan the full ubi_devices[] array and detach by the actual array index,\nmatching the way UBI devices are stored."
    }
  ],
  "lastModified": "2026-09-17T17:17:16.900",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}