CVE-2026-93145 (GCVE-0-2026-93145)
Vulnerability from cvelistv5
Published
2026-09-17 16:11
Modified
2026-10-19 09:06
Severity ?
Summary
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.
References
Impacted products
Vendor Product Version
Linux Linux Version: 45dd0e55317ccb27fe8eae639275c2b3a2fb52e5
Version: 45dd0e55317ccb27fe8eae639275c2b3a2fb52e5
Version: 45dd0e55317ccb27fe8eae639275c2b3a2fb52e5
Version: 45dd0e55317ccb27fe8eae639275c2b3a2fb52e5
Version: 45dd0e55317ccb27fe8eae639275c2b3a2fb52e5
Version: 45dd0e55317ccb27fe8eae639275c2b3a2fb52e5
Version: 45dd0e55317ccb27fe8eae639275c2b3a2fb52e5
Version: 45dd0e55317ccb27fe8eae639275c2b3a2fb52e5
 Create a notification for this product.
Show details on NVD website

To clipboard 

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/clk/qcom/gdsc.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "418d2f0a32b2a9ceb656a88aa9139408a9b7b517",
              "status": "affected",
              "version": "45dd0e55317ccb27fe8eae639275c2b3a2fb52e5",
              "versionType": "git"
            },
            {
              "lessThan": "6333cbf7e86df9797b342ce64ae7d32ba46d8d10",
              "status": "affected",
              "version": "45dd0e55317ccb27fe8eae639275c2b3a2fb52e5",
              "versionType": "git"
            },
            {
              "lessThan": "cfe16d993c578f6b17e0171a8dfd68f6fdfcfb24",
              "status": "affected",
              "version": "45dd0e55317ccb27fe8eae639275c2b3a2fb52e5",
              "versionType": "git"
            },
            {
              "lessThan": "0f4733f5fc6b6b62750619f30c18730922a1dbdb",
              "status": "affected",
              "version": "45dd0e55317ccb27fe8eae639275c2b3a2fb52e5",
              "versionType": "git"
            },
            {
              "lessThan": "6b9228a43963bcd4db92deb467375345132c29b3",
              "status": "affected",
              "version": "45dd0e55317ccb27fe8eae639275c2b3a2fb52e5",
              "versionType": "git"
            },
            {
              "lessThan": "f60f495858379dc70e87c6898d761a9db98739ff",
              "status": "affected",
              "version": "45dd0e55317ccb27fe8eae639275c2b3a2fb52e5",
              "versionType": "git"
            },
            {
              "lessThan": "40bd77fa2857ccfa77b885b77d44cea406f24a4c",
              "status": "affected",
              "version": "45dd0e55317ccb27fe8eae639275c2b3a2fb52e5",
              "versionType": "git"
            },
            {
              "lessThan": "86b23609d5e17a770d03037e53c6a443e742a6e6",
              "status": "affected",
              "version": "45dd0e55317ccb27fe8eae639275c2b3a2fb52e5",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/clk/qcom/gdsc.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "4.4"
            },
            {
              "lessThan": "4.4",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.270",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.221",
              "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",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.270",
                  "versionStartIncluding": "4.4",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.221",
                  "versionStartIncluding": "4.4",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.188",
                  "versionStartIncluding": "4.4",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.157",
                  "versionStartIncluding": "4.4",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.110",
                  "versionStartIncluding": "4.4",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.52",
                  "versionStartIncluding": "4.4",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.2.6",
                  "versionStartIncluding": "4.4",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.3",
                  "versionStartIncluding": "4.4",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nclk: qcom: gdsc: tear down per-domain genpds in gdsc_unregister()\n\ngdsc_unregister() removes the OF provider entry and tears down the\nparent/subdomain wiring, but never calls pm_genpd_remove() on the\nindividual generic_pm_domain structures registered by gdsc_init():\n\n\tvoid gdsc_unregister(struct gdsc_desc *desc)\n\t{\n\t\tstruct device *dev = desc-\u003edev;\n\t\tsize_t num = desc-\u003enum;\n\n\t\tgdsc_pm_subdomain_remove(desc, num);\n\t\tof_genpd_del_provider(dev-\u003eof_node);\n\t}\n\nThat leaves dangling entries on the global gpd_list. After a provider\nunbind/rebind cycle (deferred-probe replay during early boot, real\nmodule unload of a clk driver that owns GDSCs, or an OF-overlay tear-\ndown) the next gdsc_init() will end up trying to re-register a name\nthat is still in the list and pm_genpd_init() returns -EEXIST.\n\nWhile we are here, flip the order so the consumer-facing OF provider\nentry is the first thing removed -- otherwise a fresh\nof_genpd_get_from_provider() call racing with the teardown could\nattach to a domain that is mid-removal.\n\nIterate the scs[] array and pm_genpd_remove() each registered domain\nafter the subdomain links are torn down. The regulators stay devm-\nmanaged (devm_regulator_get_optional() in gdsc_register()), so the\nrelease happens automatically when the underlying device is unbound;\njust the genpd accounting needs to be undone explicitly."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-19T09:06:17.744Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/418d2f0a32b2a9ceb656a88aa9139408a9b7b517"
        },
        {
          "url": "https://git.kernel.org/stable/c/6333cbf7e86df9797b342ce64ae7d32ba46d8d10"
        },
        {
          "url": "https://git.kernel.org/stable/c/cfe16d993c578f6b17e0171a8dfd68f6fdfcfb24"
        },
        {
          "url": "https://git.kernel.org/stable/c/0f4733f5fc6b6b62750619f30c18730922a1dbdb"
        },
        {
          "url": "https://git.kernel.org/stable/c/6b9228a43963bcd4db92deb467375345132c29b3"
        },
        {
          "url": "https://git.kernel.org/stable/c/f60f495858379dc70e87c6898d761a9db98739ff"
        },
        {
          "url": "https://git.kernel.org/stable/c/40bd77fa2857ccfa77b885b77d44cea406f24a4c"
        },
        {
          "url": "https://git.kernel.org/stable/c/86b23609d5e17a770d03037e53c6a443e742a6e6"
        }
      ],
      "title": "clk: qcom: gdsc: tear down per-domain genpds in gdsc_unregister()",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-93145",
    "datePublished": "2026-09-17T16:11:43.421Z",
    "dateReserved": "2026-09-17T16:02:15.088Z",
    "dateUpdated": "2026-10-19T09:06:17.744Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.