CVE-2022-50634 (GCVE-0-2022-50634)
Vulnerability from cvelistv5
Published
2025-12-09 00:00
Modified
2025-12-09 00:00
Severity ?
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.
References
Impacted products
Vendor Product Version
Linux Linux Version: b4c7715c10c106a041b0b3fabd26151c214ea394
Version: b4c7715c10c106a041b0b3fabd26151c214ea394
Version: b4c7715c10c106a041b0b3fabd26151c214ea394
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/power/supply/cw2015_battery.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "f7e2ba8ed08138102f21f3fe6414498c93177fd8",
              "status": "affected",
              "version": "b4c7715c10c106a041b0b3fabd26151c214ea394",
              "versionType": "git"
            },
            {
              "lessThan": "5150b76aa2eb8bb8feb7f7a048417f9d39c3dd04",
              "status": "affected",
              "version": "b4c7715c10c106a041b0b3fabd26151c214ea394",
              "versionType": "git"
            },
            {
              "lessThan": "97f2b4ddb0aa700d673691a7d5e44d226d22bab7",
              "status": "affected",
              "version": "b4c7715c10c106a041b0b3fabd26151c214ea394",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/power/supply/cw2015_battery.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.8"
            },
            {
              "lessThan": "5.8",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.0.*",
              "status": "unaffected",
              "version": "6.0.16",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.2",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.2",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.0.16",
                  "versionStartIncluding": "5.8",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.2",
                  "versionStartIncluding": "5.8",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.2",
                  "versionStartIncluding": "5.8",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "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."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-12-09T00:00:06.318Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/f7e2ba8ed08138102f21f3fe6414498c93177fd8"
        },
        {
          "url": "https://git.kernel.org/stable/c/5150b76aa2eb8bb8feb7f7a048417f9d39c3dd04"
        },
        {
          "url": "https://git.kernel.org/stable/c/97f2b4ddb0aa700d673691a7d5e44d226d22bab7"
        }
      ],
      "title": "power: supply: cw2015: Fix potential null-ptr-deref in cw_bat_probe()",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "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"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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