FKIE_CVE-2025-68759

Vulnerability from fkie_nvd - Published: 2026-01-05 10:15 - Updated: 2026-06-17 09:59
Severity
Summary
In the Linux kernel, the following vulnerability has been resolved: wifi: rtl818x: Fix potential memory leaks in rtl8180_init_rx_ring() In rtl8180_init_rx_ring(), memory is allocated for skb packets and DMA allocations in a loop. When an allocation fails, the previously successful allocations are not freed on exit. Fix that by jumping to err_free_rings label on error, which calls rtl8180_free_rx_ring() to free the allocations. Remove the free of rx_ring in rtl8180_init_rx_ring() error path, and set the freed priv->rx_buf entry to null, to avoid double free.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/3677c01891fb0239361e444afee8398868e34bdf
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/89caaeee8dd95fae8bb4f4964e6fe3ca688500c4
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/9b5b9c042b30befc5b37e4539ace95af70843473
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/a4fb7cca9837378878e6c94d9e7af019c8fdfcdb
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/a813a74570212cb5f3a7d3b05c0cb0cd00bace1d
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/bf8513dfa31ea015c9cf415796dca2113d293840
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/c9d1c4152e6d32fa74034464854bee262a60bc43
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/ee7db11742b30641f21306105ad27a275e3c61d7
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/wireless/realtek/rtl818x/rtl8180/dev.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "3677c01891fb0239361e444afee8398868e34bdf",
              "status": "affected",
              "version": "f653211197f3841f383fa9757ef8ce182c6cf627",
              "versionType": "git"
            },
            {
              "lessThan": "89caaeee8dd95fae8bb4f4964e6fe3ca688500c4",
              "status": "affected",
              "version": "f653211197f3841f383fa9757ef8ce182c6cf627",
              "versionType": "git"
            },
            {
              "lessThan": "a4fb7cca9837378878e6c94d9e7af019c8fdfcdb",
              "status": "affected",
              "version": "f653211197f3841f383fa9757ef8ce182c6cf627",
              "versionType": "git"
            },
            {
              "lessThan": "bf8513dfa31ea015c9cf415796dca2113d293840",
              "status": "affected",
              "version": "f653211197f3841f383fa9757ef8ce182c6cf627",
              "versionType": "git"
            },
            {
              "lessThan": "ee7db11742b30641f21306105ad27a275e3c61d7",
              "status": "affected",
              "version": "f653211197f3841f383fa9757ef8ce182c6cf627",
              "versionType": "git"
            },
            {
              "lessThan": "a813a74570212cb5f3a7d3b05c0cb0cd00bace1d",
              "status": "affected",
              "version": "f653211197f3841f383fa9757ef8ce182c6cf627",
              "versionType": "git"
            },
            {
              "lessThan": "c9d1c4152e6d32fa74034464854bee262a60bc43",
              "status": "affected",
              "version": "f653211197f3841f383fa9757ef8ce182c6cf627",
              "versionType": "git"
            },
            {
              "lessThan": "9b5b9c042b30befc5b37e4539ace95af70843473",
              "status": "affected",
              "version": "f653211197f3841f383fa9757ef8ce182c6cf627",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/wireless/realtek/rtl818x/rtl8180/dev.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "2.6.25"
            },
            {
              "lessThan": "2.6.25",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.248",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.198",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.160",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.120",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.63",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.17.*",
              "status": "unaffected",
              "version": "6.17.13",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.2",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.19",
              "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\nwifi: rtl818x: Fix potential memory leaks in rtl8180_init_rx_ring()\n\nIn rtl8180_init_rx_ring(), memory is allocated for skb packets and DMA\nallocations in a loop. When an allocation fails, the previously\nsuccessful allocations are not freed on exit.\n\nFix that by jumping to err_free_rings label on error, which calls\nrtl8180_free_rx_ring() to free the allocations. Remove the free of\nrx_ring in rtl8180_init_rx_ring() error path, and set the freed\npriv-\u003erx_buf entry to null, to avoid double free."
    }
  ],
  "id": "CVE-2025-68759",
  "lastModified": "2026-06-17T09:59:32.477",
  "metrics": {},
  "published": "2026-01-05T10:15:57.010",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/3677c01891fb0239361e444afee8398868e34bdf"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/89caaeee8dd95fae8bb4f4964e6fe3ca688500c4"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/9b5b9c042b30befc5b37e4539ace95af70843473"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/a4fb7cca9837378878e6c94d9e7af019c8fdfcdb"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/a813a74570212cb5f3a7d3b05c0cb0cd00bace1d"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/bf8513dfa31ea015c9cf415796dca2113d293840"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/c9d1c4152e6d32fa74034464854bee262a60bc43"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/ee7db11742b30641f21306105ad27a275e3c61d7"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Deferred"
}


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