FKIE_CVE-2025-68789

Vulnerability from fkie_nvd - Published: 2026-01-13 16:15 - Updated: 2026-01-19 13:16
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: hwmon: (ibmpex) fix use-after-free in high/low store The ibmpex_high_low_store() function retrieves driver data using dev_get_drvdata() and uses it without validation. This creates a race condition where the sysfs callback can be invoked after the data structure is freed, leading to use-after-free. Fix by adding a NULL check after dev_get_drvdata(), and reordering operations in the deletion path to prevent TOCTOU.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/3ce9b7ae9d4d148672b35147aaf7987a4f82bb94
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/533ead425f8109b02fecc7e72d612b8898ec347a
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/5aa2139201667c1f644601e4529c4acd6bf8db5a
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/68d62e5bebbd118b763e8bb210d5cf2198ef450c
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/6946c726c3f4c36f0f049e6f97e88c510b15f65d
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/fa37adcf1d564ef58b9dfb01b6c36d35c5294bad
Impacted products
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{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nhwmon: (ibmpex) fix use-after-free in high/low store\n\nThe ibmpex_high_low_store() function retrieves driver data using\ndev_get_drvdata() and uses it without validation. This creates a race\ncondition where the sysfs callback can be invoked after the data\nstructure is freed, leading to use-after-free.\n\nFix by adding a NULL check after dev_get_drvdata(), and reordering\noperations in the deletion path to prevent TOCTOU."
    }
  ],
  "id": "CVE-2025-68789",
  "lastModified": "2026-01-19T13:16:13.953",
  "metrics": {},
  "published": "2026-01-13T16:15:58.750",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/3ce9b7ae9d4d148672b35147aaf7987a4f82bb94"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/533ead425f8109b02fecc7e72d612b8898ec347a"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/5aa2139201667c1f644601e4529c4acd6bf8db5a"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/68d62e5bebbd118b763e8bb210d5cf2198ef450c"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/6946c726c3f4c36f0f049e6f97e88c510b15f65d"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/fa37adcf1d564ef58b9dfb01b6c36d35c5294bad"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Awaiting Analysis"
}


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