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clk: qcom: gdsc: tear down per-domain genpds in gdsc_unregister()

Type: advisorySource: Official CVE List1 source record

In the Linux kernel, the following vulnerability has been resolved: clk: qcom: gdsc: tear down per-domain genpds in gdsc_unregister() gdsc_unregister() removes the OF provider entry and tears down the parent/subdomain wiring, but never calls pm_genpd_remove() on the individual generic_pm_domain structures registered by gdsc_init(): void gdsc_unregister(struct gdsc_desc *desc) { struct device *dev = desc->dev; size_t num = desc->num; gdsc_pm_subdomain_remove(desc, num); of_genpd_del_provider(dev->of_node); } That leaves dangling entries on the global gpd_list. After a provider unbind/rebind cycle (deferred-probe replay during early boot, real module unload of a clk driver that owns GDSCs, or an OF-overlay tear- down) the next gdsc_init() will end up trying to re-register a name that is still in the list and pm_genpd_init() returns -EEXIST. While we are here, flip the order so the consumer-facing OF provider entry is the first thing removed -- otherwise a fresh of_genpd_get_from_provider() call racing with the teardown could attach to a domain that is mid-removal. Iterate the scs[] array and pm_genpd_remove() each registered domain after the subdomain links are torn down. The regulators stay devm- managed (devm_regulator_get_optional() in gdsc_register()), so the release happens automatically when the underlying device is unbound; just the genpd accounting needs to be undone explicitly.

Announced Source revision 1
Original source ↗

CVE-2026-93145

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: cve:CVE-2026-93145

Linux

Source reference: /containers/cna/affected/0/product

Affected versions
Not stated in this record
Fixed versions
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Prerequisites
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Linux

Source reference: /containers/cna/affected/1/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "45dd0e55317ccb27fe8eae639275c2b3a2fb52e5",
        "lessThan": "418d2f0a32b2a9ceb656a88aa9139408a9b7b517",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "45dd0e55317ccb27fe8eae639275c2b3a2fb52e5",
        "lessThan": "6333cbf7e86df9797b342ce64ae7d32ba46d8d10",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "45dd0e55317ccb27fe8eae639275c2b3a2fb52e5",
        "lessThan": "cfe16d993c578f6b17e0171a8dfd68f6fdfcfb24",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "45dd0e55317ccb27fe8eae639275c2b3a2fb52e5",
        "lessThan": "0f4733f5fc6b6b62750619f30c18730922a1dbdb",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "45dd0e55317ccb27fe8eae639275c2b3a2fb52e5",
        "lessThan": "6b9228a43963bcd4db92deb467375345132c29b3",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "45dd0e55317ccb27fe8eae639275c2b3a2fb52e5",
        "lessThan": "f60f495858379dc70e87c6898d761a9db98739ff",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "45dd0e55317ccb27fe8eae639275c2b3a2fb52e5",
        "lessThan": "40bd77fa2857ccfa77b885b77d44cea406f24a4c",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "45dd0e55317ccb27fe8eae639275c2b3a2fb52e5",
        "lessThan": "86b23609d5e17a770d03037e53c6a443e742a6e6",
        "versionType": "git"
      }
    ],
    "programFiles": [
      "drivers/clk/qcom/gdsc.c"
    ],
    "defaultStatus": "unaffected"
  },
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "4.4"
      },
      {
        "status": "unaffected",
        "version": "0",
        "lessThan": "4.4",
        "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",
        "versionType": "original_commit_for_fix",
        "lessThanOrEqual": "*"
      }
    ],
    "programFiles": [
      "drivers/clk/qcom/gdsc.c"
    ],
    "defaultStatus": "affected"
  }
]
Related CVEs
CVE-2026-93145

Source reference: /cveMetadata/cveId

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Event
#37865 · Revision 1
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