CVE-2022-50634 (GCVE-0-2022-50634)

Vulnerability from cvelistv5 – Published: 2025-12-09 00:00 – Updated: 2025-12-09 00:00
VLAI?
Title
power: supply: cw2015: Fix potential null-ptr-deref in cw_bat_probe()
Summary
In the Linux kernel, the following vulnerability has been resolved: power: supply: cw2015: Fix potential null-ptr-deref in cw_bat_probe() cw_bat_probe() calls create_singlethread_workqueue() and not checked the ret value, which may return NULL. And a null-ptr-deref may happen: cw_bat_probe() create_singlethread_workqueue() # failed, cw_bat->wq is NULL queue_delayed_work() queue_delayed_work_on() __queue_delayed_work() # warning here, but continue __queue_work() # access wq->flags, null-ptr-deref Check the ret value and return -ENOMEM if it is NULL.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: b4c7715c10c106a041b0b3fabd26151c214ea394 , < f7e2ba8ed08138102f21f3fe6414498c93177fd8 (git)
Affected: b4c7715c10c106a041b0b3fabd26151c214ea394 , < 5150b76aa2eb8bb8feb7f7a048417f9d39c3dd04 (git)
Affected: b4c7715c10c106a041b0b3fabd26151c214ea394 , < 97f2b4ddb0aa700d673691a7d5e44d226d22bab7 (git)
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    Linux Linux Affected: 5.8
Unaffected: 0 , < 5.8 (semver)
Unaffected: 6.0.16 , ≤ 6.0.* (semver)
Unaffected: 6.1.2 , ≤ 6.1.* (semver)
Unaffected: 6.2 , ≤ * (original_commit_for_fix)
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          "product": "Linux",
          "programFiles": [
            "drivers/power/supply/cw2015_battery.c"
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              "operator": "OR"
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      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\npower: supply: cw2015: Fix potential null-ptr-deref in cw_bat_probe()\n\ncw_bat_probe() calls create_singlethread_workqueue() and not checked the\nret value, which may return NULL. And a null-ptr-deref may happen:\n\ncw_bat_probe()\n    create_singlethread_workqueue() # failed, cw_bat-\u003ewq is NULL\n    queue_delayed_work()\n        queue_delayed_work_on()\n            __queue_delayed_work()  # warning here, but continue\n                __queue_work()      # access wq-\u003eflags, null-ptr-deref\n\nCheck the ret value and return -ENOMEM if it is NULL."
        }
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      "providerMetadata": {
        "dateUpdated": "2025-12-09T00:00:06.318Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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          "url": "https://git.kernel.org/stable/c/97f2b4ddb0aa700d673691a7d5e44d226d22bab7"
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      ],
      "title": "power: supply: cw2015: Fix potential null-ptr-deref in cw_bat_probe()",
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    "assignerShortName": "Linux",
    "cveId": "CVE-2022-50634",
    "datePublished": "2025-12-09T00:00:06.318Z",
    "dateReserved": "2025-12-08T23:57:43.369Z",
    "dateUpdated": "2025-12-09T00:00:06.318Z",
    "state": "PUBLISHED"
  },
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    "nvd": "{\"cve\":{\"id\":\"CVE-2022-50634\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-12-09T01:16:45.590\",\"lastModified\":\"2025-12-09T18:37:13.640\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\npower: supply: cw2015: Fix potential null-ptr-deref in cw_bat_probe()\\n\\ncw_bat_probe() calls create_singlethread_workqueue() and not checked the\\nret value, which may return NULL. And a null-ptr-deref may happen:\\n\\ncw_bat_probe()\\n    create_singlethread_workqueue() # failed, cw_bat-\u003ewq is NULL\\n    queue_delayed_work()\\n        queue_delayed_work_on()\\n            __queue_delayed_work()  # warning here, but continue\\n                __queue_work()      # access wq-\u003eflags, null-ptr-deref\\n\\nCheck the ret value and return -ENOMEM if it is NULL.\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/5150b76aa2eb8bb8feb7f7a048417f9d39c3dd04\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/97f2b4ddb0aa700d673691a7d5e44d226d22bab7\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/f7e2ba8ed08138102f21f3fe6414498c93177fd8\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


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