CVE-2025-68765 (GCVE-0-2025-68765)

Vulnerability from cvelistv5 – Published: 2026-01-05 09:44 – Updated: 2026-01-05 09:44
VLAI?
Title
mt76: mt7615: Fix memory leak in mt7615_mcu_wtbl_sta_add()
Summary
In the Linux kernel, the following vulnerability has been resolved: mt76: mt7615: Fix memory leak in mt7615_mcu_wtbl_sta_add() In mt7615_mcu_wtbl_sta_add(), an skb sskb is allocated. If the subsequent call to mt76_connac_mcu_alloc_wtbl_req() fails, the function returns an error without freeing sskb, leading to a memory leak. Fix this by calling dev_kfree_skb() on sskb in the error handling path to ensure it is properly released.
Severity ?
No CVSS data available.
Assigner
Impacted products
Vendor Product Version
Linux Linux Affected: 99c457d902cf90bdc0df5d57e6156ec108711068 , < 278bfed4529a0c9c9119f5a52ddafe69db61a75c (git)
Affected: 99c457d902cf90bdc0df5d57e6156ec108711068 , < fb905e69941b44e03fe1a24e95328d45442b6d6d (git)
Affected: 99c457d902cf90bdc0df5d57e6156ec108711068 , < 4d42aba0ee49c0aa015c50c4f2a07cf8fa1c3a49 (git)
Affected: 99c457d902cf90bdc0df5d57e6156ec108711068 , < 53d1548612670aa8b5d89745116cc33d9d172863 (git)
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    Linux Linux Affected: 5.7
Unaffected: 0 , < 5.7 (semver)
Unaffected: 6.12.63 , ≤ 6.12.* (semver)
Unaffected: 6.17.13 , ≤ 6.17.* (semver)
Unaffected: 6.18.2 , ≤ 6.18.* (semver)
Unaffected: 6.19-rc1 , ≤ * (original_commit_for_fix)
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{
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          "product": "Linux",
          "programFiles": [
            "drivers/net/wireless/mediatek/mt76/mt7615/mcu.c"
          ],
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          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
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              "lessThanOrEqual": "6.17.*",
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            {
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              "versionType": "semver"
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        }
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      "cpeApplicability": [
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              "negate": false,
              "operator": "OR"
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      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmt76: mt7615: Fix memory leak in mt7615_mcu_wtbl_sta_add()\n\nIn mt7615_mcu_wtbl_sta_add(), an skb sskb is allocated. If the\nsubsequent call to mt76_connac_mcu_alloc_wtbl_req() fails, the function\nreturns an error without freeing sskb, leading to a memory leak.\n\nFix this by calling dev_kfree_skb() on sskb in the error handling path\nto ensure it is properly released."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-01-05T09:44:13.242Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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        {
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      ],
      "title": "mt76: mt7615: Fix memory leak in mt7615_mcu_wtbl_sta_add()",
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  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-68765",
    "datePublished": "2026-01-05T09:44:13.242Z",
    "dateReserved": "2025-12-24T10:30:51.034Z",
    "dateUpdated": "2026-01-05T09:44:13.242Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2025-68765\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2026-01-05T10:15:57.697\",\"lastModified\":\"2026-01-08T18:09:49.800\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nmt76: mt7615: Fix memory leak in mt7615_mcu_wtbl_sta_add()\\n\\nIn mt7615_mcu_wtbl_sta_add(), an skb sskb is allocated. If the\\nsubsequent call to mt76_connac_mcu_alloc_wtbl_req() fails, the function\\nreturns an error without freeing sskb, leading to a memory leak.\\n\\nFix this by calling dev_kfree_skb() on sskb in the error handling path\\nto ensure it is properly released.\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/278bfed4529a0c9c9119f5a52ddafe69db61a75c\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/4d42aba0ee49c0aa015c50c4f2a07cf8fa1c3a49\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/53d1548612670aa8b5d89745116cc33d9d172863\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/fb905e69941b44e03fe1a24e95328d45442b6d6d\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


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Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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