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CVE-2026-90122

Estado: RecibidaSin puntuar—

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

clk: visconti: Make sure clk_init_data is fully initialized

The clk_init_data structure contains several mutually-exclusive members for different methods to specify the possible parents of a clock, prompting drivers to initialize only the members they need. However, not initializing all members may cause subtle issues, which are only exposed when CONFIG_INIT_STACK_ALL_PATTERN or CONFIG_INIT_STACK_NONE is enabled.

visconti_clk_register_gate() fills in init.parent_data, and assumes that init.parent_names is NULL. However, the latter in uninitialized, and thus may cause a crash.

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Make sure all members are fully initialized, to fix such bugs, and to avoid future breakage when converting drivers to a different method for specifying the parents.

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-2026-90122",
  "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": "b4cbe606dc3674b25cb661e7cd1a1c6ddaaafaaa",
              "lessThan": "0e97c22b286e1918c6f48bad7e77fb8240a24b4a",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "b4cbe606dc3674b25cb661e7cd1a1c6ddaaafaaa",
              "lessThan": "9f756f1965bad65e6066608f33c36988cd10302a",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "b4cbe606dc3674b25cb661e7cd1a1c6ddaaafaaa",
              "lessThan": "1cc0539e5b0906bace15d3fc7347b344a017cc02",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "b4cbe606dc3674b25cb661e7cd1a1c6ddaaafaaa",
              "lessThan": "8f7980033e9f7ecaaecd873a0b5bf6b6c87d7e5a",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "b4cbe606dc3674b25cb661e7cd1a1c6ddaaafaaa",
              "lessThan": "5ecfa72e74c6e2a765fa5bc1da574e5beae588f2",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "b4cbe606dc3674b25cb661e7cd1a1c6ddaaafaaa",
              "lessThan": "39c0e6c844a14945040cca4ccf6997792ab764c4",
              "versionType": "git"
            }
          ],
          "programFiles": [
            "drivers/clk/visconti/clkc.c"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.17"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "5.17",
              "versionType": "semver"
            },
            {
              "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/clk/visconti/clkc.c"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2026-09-17T17:17:04.420",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/0e97c22b286e1918c6f48bad7e77fb8240a24b4a",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/1cc0539e5b0906bace15d3fc7347b344a017cc02",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/39c0e6c844a14945040cca4ccf6997792ab764c4",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/5ecfa72e74c6e2a765fa5bc1da574e5beae588f2",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/8f7980033e9f7ecaaecd873a0b5bf6b6c87d7e5a",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/9f756f1965bad65e6066608f33c36988cd10302a",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Received",
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nclk: visconti: Make sure clk_init_data is fully initialized\n\nThe clk_init_data structure contains several mutually-exclusive members\nfor different methods to specify the possible parents of a clock,\nprompting drivers to initialize only the members they need.  However,\nnot initializing all members may cause subtle issues, which are only\nexposed when CONFIG_INIT_STACK_ALL_PATTERN or CONFIG_INIT_STACK_NONE is\nenabled.\n\nvisconti_clk_register_gate() fills in init.parent_data, and assumes that\ninit.parent_names is NULL.  However, the latter in uninitialized, and\nthus may cause a crash.\n\nMake sure all members are fully initialized, to fix such bugs, and to\navoid future breakage when converting drivers to a different method for\nspecifying the parents."
    }
  ],
  "lastModified": "2026-09-17T17:17:04.420",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}