ACPI: CPPC: Fix NULL pointer dereference when nosmp is used

{
  "id": "778b2ca1a7a99104f857a265cb5535b06db59d91195641df69231079187a102b",
  "url": "https://osv.dev/vulnerability/CVE-2025-38113",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "ACPI: CPPC: Fix NULL pointer dereference when nosmp is used",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: ACPI: CPPC: Fix NULL pointer dereference when nosmp is used With nosmp in cmdline, other CPUs are not brought up, leaving their cpc_desc_ptr NULL. CPU0's iteration via for_each_possible_cpu() dereferences these NULL pointers, causing panic. Panic backtrace: [ 0.401123] Unable to handle kernel NULL pointer dereference at virtual address 00000000000000b8 ... [ 0.403255] [] cppc_allow_fast_switch+0x6a/0xd4 ... Kernel panic - not syncing: Attempted to kill init! [ rjw: New subject ]",
    "evidence": "osv:CVE-2025-38113",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "6.1.142",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.6.94",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.12.34",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.15.3",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "CVE-2025-38113",
      "aliases": [
        "CVE-2025-38113"
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
                {
                  "introduced": "3cc30dd00a580ca0c9c0b01639841cfd72d10129"
                },
                {
                  "fixed": "356d09c7f5bf525086002a34f8bae40b134d1611"
                },
                {
                  "fixed": "c6dad167aade4bf0bef9130f2f149f4249fc4ad0"
                },
                {
                  "fixed": "32a48db4cf28ea087214c261da8476db218d08bd"
                },
                {
                  "fixed": "1a677d0ceb4a5d62117b711a8b2e0aee80d33015"
                },
                {
                  "fixed": "15eece6c5b05e5f9db0711978c3e3b7f1a2cfe12"
                }
              ]
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-38113.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "5.19.0"
                },
                {
                  "fixed": "6.1.142"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.2.0"
                },
                {
                  "fixed": "6.6.94"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.7.0"
                },
                {
                  "fixed": "6.12.34"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.13.0"
                },
                {
                  "fixed": "6.15.3"
                }
              ]
            }
          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-38113.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:31.030465192Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/15eece6c5b05e5f9db0711978c3e3b7f1a2cfe12",
        "https://git.kernel.org/stable/c/1a677d0ceb4a5d62117b711a8b2e0aee80d33015",
        "https://git.kernel.org/stable/c/32a48db4cf28ea087214c261da8476db218d08bd",
        "https://git.kernel.org/stable/c/356d09c7f5bf525086002a34f8bae40b134d1611",
        "https://git.kernel.org/stable/c/c6dad167aade4bf0bef9130f2f149f4249fc4ad0",
        "https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/38xxx/CVE-2025-38113.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2025-38113",
        "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
      ],
      "provider_metadata": {
        "cna_assigner": "Linux",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/38xxx/CVE-2025-38113.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2025-38113",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 497911,
  "published_at": "2025-07-03T08:35:22.207+00:00"
}