FKIE_CVE-2022-50634

Vulnerability from fkie_nvd - Published: 2025-12-09 01:16 - Updated: 2026-06-17 05:23
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
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/5150b76aa2eb8bb8feb7f7a048417f9d39c3dd04
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/97f2b4ddb0aa700d673691a7d5e44d226d22bab7
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/f7e2ba8ed08138102f21f3fe6414498c93177fd8
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "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"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "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."
    }
  ],
  "id": "CVE-2022-50634",
  "lastModified": "2026-06-17T05:23:54.343",
  "metrics": {},
  "published": "2025-12-09T01:16:45.590",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "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"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Deferred"
}


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