regulator: pca9450: Use devm_register_sys_off_handler

{
  "id": "68c9de8b3e849e24e27ff43320e2a90bababae20afab597621955daf404b44db",
  "url": "https://osv.dev/vulnerability/CVE-2025-39771",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "regulator: pca9450: Use devm_register_sys_off_handler",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: regulator: pca9450: Use devm_register_sys_off_handler With module test, there is error dump: ------------[ cut here ]------------ notifier callback pca9450_i2c_restart_handler already registered WARNING: kernel/notifier.c:23 at notifier_chain_register+0x5c/0x88, CPU#0: kworker/u16:3/50 Call trace: notifier_chain_register+0x5c/0x88 (P) atomic_notifier_chain_register+0x30/0x58 register_restart_handler+0x1c/0x28 pca9450_i2c_probe+0x418/0x538 i2c_device_probe+0x220/0x3d0 really_probe+0x114/0x410 __driver_probe_device+0xa0/0x150 driver_probe_device+0x40/0x114 __device_attach_driver+0xd4/0x12c So use devm_register_sys_off_handler to let kernel handle the resource free to avoid kernel dump.",
    "evidence": "osv:CVE-2025-39771",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "6.16.4",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "CVE-2025-39771",
      "aliases": [
        "CVE-2025-39771"
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
                {
                  "introduced": "6157e62b07d9331cc1d4d9d525dab33d45b0e83c"
                },
                {
                  "fixed": "7a8c8aa0b0b2c62a0232bf868def85f3069ba7a7"
                },
                {
                  "fixed": "447be50598c05499f7ccc2b1f6ddb3da30f8099a"
                }
              ]
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-39771.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.16.0"
                },
                {
                  "fixed": "6.16.4"
                }
              ]
            }
          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-39771.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:51.981071469Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/447be50598c05499f7ccc2b1f6ddb3da30f8099a",
        "https://git.kernel.org/stable/c/7a8c8aa0b0b2c62a0232bf868def85f3069ba7a7",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/39xxx/CVE-2025-39771.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2025-39771",
        "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/2025/39xxx/CVE-2025-39771.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2025-39771",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 520920,
  "published_at": "2025-09-11T16:56:25.209+00:00"
}