FKIE_CVE-2026-98808

Vulnerability from fkie_nvd - Published: 2026-10-18 16:17 - Updated: 2026-10-21 13:21
Severity
Summary
In the Linux kernel, the following vulnerability has been resolved: net: systemport: Fix buffer overflow in bcm_sysport_get_stats() When running on SYSTEMPORT Lite, certain statistics are unsupported and skipped during bcm_sysport_get_stats(). The variable 'j' tracks the compacted index into the destination data buffer, whereas 'i' iterates over all elements in bcm_sysport_gstrings_stats. Because the buffer allocated by ethtool is sized only according to bcm_sysport_get_sset_count(), storing values at data[i] instead of data[j] writes past the allocated array bounds, leading to memory corruption. Fix this by writing to data[j] instead of data[i].
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/29d1d35ad5ad379a904263ea1cd4ba1d71cd965f
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/96a2b042051553df0d9f03b518dd3b7105b36935
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/96d8b26be5bc451188acdcee055948da45adbde0
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/eb7b84af0ec5c71b4920e999611b466b3784496c
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/faba9fdde480356f4a1d3b1a5713b7b354858a1c
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/ethernet/broadcom/bcmsysport.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "96a2b042051553df0d9f03b518dd3b7105b36935",
              "status": "affected",
              "version": "10377ba7673d19e28d92846955d51f49acd25c35",
              "versionType": "git"
            },
            {
              "lessThan": "29d1d35ad5ad379a904263ea1cd4ba1d71cd965f",
              "status": "affected",
              "version": "10377ba7673d19e28d92846955d51f49acd25c35",
              "versionType": "git"
            },
            {
              "lessThan": "96d8b26be5bc451188acdcee055948da45adbde0",
              "status": "affected",
              "version": "10377ba7673d19e28d92846955d51f49acd25c35",
              "versionType": "git"
            },
            {
              "lessThan": "faba9fdde480356f4a1d3b1a5713b7b354858a1c",
              "status": "affected",
              "version": "10377ba7673d19e28d92846955d51f49acd25c35",
              "versionType": "git"
            },
            {
              "lessThan": "eb7b84af0ec5c71b4920e999611b466b3784496c",
              "status": "affected",
              "version": "10377ba7673d19e28d92846955d51f49acd25c35",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/ethernet/broadcom/bcmsysport.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "4.14"
            },
            {
              "lessThan": "4.14",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.160",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.113",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.56",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.2.*",
              "status": "unaffected",
              "version": "7.2.10",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.3",
              "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: systemport: Fix buffer overflow in bcm_sysport_get_stats()\n\nWhen running on SYSTEMPORT Lite, certain statistics are unsupported and\nskipped during bcm_sysport_get_stats(). The variable \u0027j\u0027 tracks the\ncompacted index into the destination data buffer, whereas \u0027i\u0027 iterates\nover all elements in bcm_sysport_gstrings_stats.\n\nBecause the buffer allocated by ethtool is sized only according to\nbcm_sysport_get_sset_count(), storing values at data[i] instead of\ndata[j] writes past the allocated array bounds, leading to memory\ncorruption.\n\nFix this by writing to data[j] instead of data[i]."
    }
  ],
  "id": "CVE-2026-98808",
  "lastModified": "2026-10-21T13:21:47.480",
  "metrics": {},
  "published": "2026-10-18T16:17:34.893",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/29d1d35ad5ad379a904263ea1cd4ba1d71cd965f"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/96a2b042051553df0d9f03b518dd3b7105b36935"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/96d8b26be5bc451188acdcee055948da45adbde0"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/eb7b84af0ec5c71b4920e999611b466b3784496c"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/faba9fdde480356f4a1d3b1a5713b7b354858a1c"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Received"
}



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