CVE-2025-39771 (GCVE-0-2025-39771)
Vulnerability from cvelistv5
Published
2025-09-11 16:56
Modified
2025-09-11 16:56
Severity ?
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.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/447be50598c05499f7ccc2b1f6ddb3da30f8099a
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/7a8c8aa0b0b2c62a0232bf868def85f3069ba7a7
Impacted products
Vendor Product Version
Linux Linux Version: 6157e62b07d9331cc1d4d9d525dab33d45b0e83c
Version: 6157e62b07d9331cc1d4d9d525dab33d45b0e83c
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   Linux Linux Version: 6.16
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{
  "containers": {
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      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/regulator/pca9450-regulator.c"
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      "cpeApplicability": [
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      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nregulator: pca9450: Use devm_register_sys_off_handler\n\nWith module test, there is error dump:\n------------[ cut here ]------------\n  notifier callback pca9450_i2c_restart_handler already registered\n  WARNING: kernel/notifier.c:23 at notifier_chain_register+0x5c/0x88,\n  CPU#0: kworker/u16:3/50\n  Call trace:\n  notifier_chain_register+0x5c/0x88 (P)\n  atomic_notifier_chain_register+0x30/0x58\n  register_restart_handler+0x1c/0x28\n  pca9450_i2c_probe+0x418/0x538\n  i2c_device_probe+0x220/0x3d0\n  really_probe+0x114/0x410\n  __driver_probe_device+0xa0/0x150\n  driver_probe_device+0x40/0x114\n  __device_attach_driver+0xd4/0x12c\n\nSo use devm_register_sys_off_handler to let kernel handle the resource\nfree to avoid kernel dump."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-09-11T16:56:25.209Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
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          "url": "https://git.kernel.org/stable/c/7a8c8aa0b0b2c62a0232bf868def85f3069ba7a7"
        },
        {
          "url": "https://git.kernel.org/stable/c/447be50598c05499f7ccc2b1f6ddb3da30f8099a"
        }
      ],
      "title": "regulator: pca9450: Use devm_register_sys_off_handler",
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  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-39771",
    "datePublished": "2025-09-11T16:56:25.209Z",
    "dateReserved": "2025-04-16T07:20:57.128Z",
    "dateUpdated": "2025-09-11T16:56:25.209Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2025-39771\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-09-11T17:15:42.683\",\"lastModified\":\"2025-09-15T15:22:38.297\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nregulator: pca9450: Use devm_register_sys_off_handler\\n\\nWith module test, there is error dump:\\n------------[ cut here ]------------\\n  notifier callback pca9450_i2c_restart_handler already registered\\n  WARNING: kernel/notifier.c:23 at notifier_chain_register+0x5c/0x88,\\n  CPU#0: kworker/u16:3/50\\n  Call trace:\\n  notifier_chain_register+0x5c/0x88 (P)\\n  atomic_notifier_chain_register+0x30/0x58\\n  register_restart_handler+0x1c/0x28\\n  pca9450_i2c_probe+0x418/0x538\\n  i2c_device_probe+0x220/0x3d0\\n  really_probe+0x114/0x410\\n  __driver_probe_device+0xa0/0x150\\n  driver_probe_device+0x40/0x114\\n  __device_attach_driver+0xd4/0x12c\\n\\nSo use devm_register_sys_off_handler to let kernel handle the resource\\nfree to avoid kernel dump.\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/447be50598c05499f7ccc2b1f6ddb3da30f8099a\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/7a8c8aa0b0b2c62a0232bf868def85f3069ba7a7\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


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