{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "471d6659925aa0dcb4ab2520fa5ee3f49dfeab22"
            },
            {
              "fixed": "70c8c8b50d80f681f50ddcc66a9400dd87508913"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "e30ca6dd5345c5b8ba05f346a8e81105352fe571"
            },
            {
              "fixed": "f4ade8d224756ab69f108204dde6777bac4664e4"
            },
            {
              "fixed": "39c0cf62fc7851a17782e7efe8dfb2948739c681"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "7.1.0"
            },
            {
              "fixed": "7.2.6"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/92xxx/CVE-2026-92492.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ncpufreq/amd-pstate: handle missing policy in dynamic EPP callbacks\n\ncpufreq_cpu_get() returns NULL when no cpufreq policy is associated with\nthe requested CPU, for example because the CPU is offline or the policy\nhas already been torn down.  Both amd_pstate_power_supply_notifier() and\namd_pstate_profile_set() acquire a policy via cpufreq_cpu_get() and then\npass that pointer to amd_pstate_get_balanced_epp() and\namd_pstate_set_epp(), which dereference it unconditionally.  A racing\nCPU hotplug or driver teardown can therefore lead to a NULL pointer\ndereference on either of these dynamic EPP paths.\n\nThe third cpufreq_cpu_get() caller in this file, amd_pstate_verify(),\nalready handles the NULL case.  Bring the two new callers in line with\nthat pattern: return NOTIFY_OK from the power-supply notifier (matching\nthe other \"nothing to do\" exits) and -ENODEV from amd_pstate_profile_set()\n(the usual cpufreq error for a missing CPU policy).\n\nFound by code inspection; not tested on hardware.",
  "id": "CVE-2026-92492",
  "modified": "2026-09-19T03:30:57.246478361Z",
  "published": "2026-09-17T16:10:07.957Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/39c0cf62fc7851a17782e7efe8dfb2948739c681"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/70c8c8b50d80f681f50ddcc66a9400dd87508913"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f4ade8d224756ab69f108204dde6777bac4664e4"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/92xxx/CVE-2026-92492.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-92492"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "cpufreq/amd-pstate: handle missing policy in dynamic EPP callbacks"
}