FKIE_CVE-2025-68302

Vulnerability from fkie_nvd - Published: 2025-12-16 16:16 - Updated: 2026-10-13 19:10
Severity
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: net: sxgbe: fix potential NULL dereference in sxgbe_rx() Currently, when skb is null, the driver prints an error and then dereferences skb on the next line. To fix this, let's add a 'break' after the error message to switch to sxgbe_rx_refill(), which is similar to the approach taken by the other drivers in this particular case, e.g. calxeda with xgmac_rx(). Found during a code review.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/18ef3ad1bb57dcf1a9ee61736039aedccf670b21
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/45b5b4ddb8d6bea5fc1625ff6f163bbb125d49cc
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/46e5332126596a2ca791140feab18ce1fc1a3c86
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/7fd789d6ea4915034eb6bcb72f6883c8151083e5
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/88f46c0be77bfe45830ac33102c75be7c34ac3f3
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/ac171c3c755499c9f87fe30b920602255f8b5648
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/f5bce28f6b9125502abec4a67d68eabcd24b3b17
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/ethernet/samsung/sxgbe/sxgbe_main.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "ac171c3c755499c9f87fe30b920602255f8b5648",
              "status": "affected",
              "version": "1edb9ca69e8a7988900fc0283e10550b5592164d",
              "versionType": "git"
            },
            {
              "lessThan": "18ef3ad1bb57dcf1a9ee61736039aedccf670b21",
              "status": "affected",
              "version": "1edb9ca69e8a7988900fc0283e10550b5592164d",
              "versionType": "git"
            },
            {
              "lessThan": "46e5332126596a2ca791140feab18ce1fc1a3c86",
              "status": "affected",
              "version": "1edb9ca69e8a7988900fc0283e10550b5592164d",
              "versionType": "git"
            },
            {
              "lessThan": "7fd789d6ea4915034eb6bcb72f6883c8151083e5",
              "status": "affected",
              "version": "1edb9ca69e8a7988900fc0283e10550b5592164d",
              "versionType": "git"
            },
            {
              "lessThan": "45b5b4ddb8d6bea5fc1625ff6f163bbb125d49cc",
              "status": "affected",
              "version": "1edb9ca69e8a7988900fc0283e10550b5592164d",
              "versionType": "git"
            },
            {
              "lessThan": "88f46c0be77bfe45830ac33102c75be7c34ac3f3",
              "status": "affected",
              "version": "1edb9ca69e8a7988900fc0283e10550b5592164d",
              "versionType": "git"
            },
            {
              "lessThan": "f5bce28f6b9125502abec4a67d68eabcd24b3b17",
              "status": "affected",
              "version": "1edb9ca69e8a7988900fc0283e10550b5592164d",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/ethernet/samsung/sxgbe/sxgbe_main.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "3.15"
            },
            {
              "lessThan": "3.15",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.247",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.197",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.159",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.119",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.61",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.17.*",
              "status": "unaffected",
              "version": "6.17.11",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.18",
              "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\nnet: sxgbe: fix potential NULL dereference in sxgbe_rx()\n\nCurrently, when skb is null, the driver prints an error and then\ndereferences skb on the next line.\n\nTo fix this, let\u0027s add a \u0027break\u0027 after the error message to switch\nto sxgbe_rx_refill(), which is similar to the approach taken by the\nother drivers in this particular case, e.g. calxeda with xgmac_rx().\n\nFound during a code review."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nnet: sxgbe: corregir posible desreferencia NULL en sxgbe_rx()\n\nActualmente, cuando skb es nulo, el controlador imprime un error y luego desreferencia skb en la siguiente l\u00ednea.\n\nPara solucionar esto, a\u00f1adamos un \u0027break\u0027 despu\u00e9s del mensaje de error para pasar a sxgbe_rx_refill(), lo cual es similar al enfoque adoptado por los otros controladores en este caso particular, p. ej. calxeda con xgmac_rx().\n\nEncontrado durante una revisi\u00f3n de c\u00f3digo."
    }
  ],
  "id": "CVE-2025-68302",
  "lastModified": "2026-10-13T19:10:00.193",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6,
        "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "type": "Secondary"
      }
    ]
  },
  "published": "2025-12-16T16:16:09.727",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/18ef3ad1bb57dcf1a9ee61736039aedccf670b21"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/45b5b4ddb8d6bea5fc1625ff6f163bbb125d49cc"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/46e5332126596a2ca791140feab18ce1fc1a3c86"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/7fd789d6ea4915034eb6bcb72f6883c8151083e5"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/88f46c0be77bfe45830ac33102c75be7c34ac3f3"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/ac171c3c755499c9f87fe30b920602255f8b5648"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/f5bce28f6b9125502abec4a67d68eabcd24b3b17"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Deferred"
}



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