FKIE_CVE-2026-90122

Vulnerability from fkie_nvd - Published: 2026-09-17 17:17 - Updated: 2026-09-17 17:17
Severity
Summary
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. 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.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/0e97c22b286e1918c6f48bad7e77fb8240a24b4a
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/1cc0539e5b0906bace15d3fc7347b344a017cc02
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/39c0e6c844a14945040cca4ccf6997792ab764c4
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/5ecfa72e74c6e2a765fa5bc1da574e5beae588f2
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/8f7980033e9f7ecaaecd873a0b5bf6b6c87d7e5a
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/9f756f1965bad65e6066608f33c36988cd10302a
Impacted products
Vendor Product Version
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{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/clk/visconti/clkc.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "0e97c22b286e1918c6f48bad7e77fb8240a24b4a",
              "status": "affected",
              "version": "b4cbe606dc3674b25cb661e7cd1a1c6ddaaafaaa",
              "versionType": "git"
            },
            {
              "lessThan": "9f756f1965bad65e6066608f33c36988cd10302a",
              "status": "affected",
              "version": "b4cbe606dc3674b25cb661e7cd1a1c6ddaaafaaa",
              "versionType": "git"
            },
            {
              "lessThan": "1cc0539e5b0906bace15d3fc7347b344a017cc02",
              "status": "affected",
              "version": "b4cbe606dc3674b25cb661e7cd1a1c6ddaaafaaa",
              "versionType": "git"
            },
            {
              "lessThan": "8f7980033e9f7ecaaecd873a0b5bf6b6c87d7e5a",
              "status": "affected",
              "version": "b4cbe606dc3674b25cb661e7cd1a1c6ddaaafaaa",
              "versionType": "git"
            },
            {
              "lessThan": "5ecfa72e74c6e2a765fa5bc1da574e5beae588f2",
              "status": "affected",
              "version": "b4cbe606dc3674b25cb661e7cd1a1c6ddaaafaaa",
              "versionType": "git"
            },
            {
              "lessThan": "39c0e6c844a14945040cca4ccf6997792ab764c4",
              "status": "affected",
              "version": "b4cbe606dc3674b25cb661e7cd1a1c6ddaaafaaa",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/clk/visconti/clkc.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.17"
            },
            {
              "lessThan": "5.17",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.188",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.157",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.110",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.52",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.2.*",
              "status": "unaffected",
              "version": "7.2.6",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.3-rc1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "cveTags": [],
  "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."
    }
  ],
  "id": "CVE-2026-90122",
  "lastModified": "2026-09-17T17:17:04.420",
  "metrics": {},
  "published": "2026-09-17T17:17:04.420",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "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"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Received"
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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