FKIE_CVE-2026-63999

Vulnerability from fkie_nvd - Published: 2026-07-19 16:17 - Updated: 2026-07-19 16:17
Severity
Summary
In the Linux kernel, the following vulnerability has been resolved: ethtool: rss: fix indir_table and hkey leak on get_rxfh failure rss_prepare_get() allocates the indirection table and hash key buffer via rss_get_data_alloc(), then calls ops->get_rxfh() to populate them. If get_rxfh() fails, the function returns an error without freeing the allocation.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/266297692f97008ca48bc311775c087c59bd7fe3
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/33d05c22d6f227c5ae171c46df2f6f8bf48047ea
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/80d95d92f828cfcace955d673637d944178b435f
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "net/ethtool/rss.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "33d05c22d6f227c5ae171c46df2f6f8bf48047ea",
              "status": "affected",
              "version": "4f038a6a02d20859a3479293cbf172b0f14cbdd6",
              "versionType": "git"
            },
            {
              "lessThan": "80d95d92f828cfcace955d673637d944178b435f",
              "status": "affected",
              "version": "4f038a6a02d20859a3479293cbf172b0f14cbdd6",
              "versionType": "git"
            },
            {
              "lessThan": "266297692f97008ca48bc311775c087c59bd7fe3",
              "status": "affected",
              "version": "4f038a6a02d20859a3479293cbf172b0f14cbdd6",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "81a5174e64ce4fb7b7a2f6499b835c904c9451ee",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "ec9faff49a4ea27731de39cb887b7e590e93157b",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "c5ed0eaddcbda56079091fc3876b140a6e70a548",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "a065b996052656a65afc51ad82336dc55ae4c72f",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "adee9db710a6117b978a25ed4153846b7c56ec9a",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "5eb3fdc4b6281b29e830300c866a36d90442b1f0",
              "versionType": "git"
            },
            {
              "lessThan": "5.16",
              "status": "affected",
              "version": "5.15.181",
              "versionType": "semver"
            },
            {
              "lessThan": "6.2",
              "status": "affected",
              "version": "6.1.135",
              "versionType": "semver"
            },
            {
              "lessThan": "6.7",
              "status": "affected",
              "version": "6.6.88",
              "versionType": "semver"
            },
            {
              "lessThan": "6.13",
              "status": "affected",
              "version": "6.12.24",
              "versionType": "semver"
            },
            {
              "lessThan": "6.14",
              "status": "affected",
              "version": "6.13.12",
              "versionType": "semver"
            },
            {
              "lessThan": "6.15",
              "status": "affected",
              "version": "6.14.3",
              "versionType": "semver"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "net/ethtool/rss.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.15"
            },
            {
              "lessThan": "6.15",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.35",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.0.*",
              "status": "unaffected",
              "version": "7.0.12",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.1",
              "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\nethtool: rss: fix indir_table and hkey leak on get_rxfh failure\n\nrss_prepare_get() allocates the indirection table and hash key buffer\nvia rss_get_data_alloc(), then calls ops-\u003eget_rxfh() to populate them.\nIf get_rxfh() fails, the function returns an error without freeing\nthe allocation."
    }
  ],
  "id": "CVE-2026-63999",
  "lastModified": "2026-07-19T16:17:39.477",
  "metrics": {},
  "published": "2026-07-19T16:17:39.477",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/266297692f97008ca48bc311775c087c59bd7fe3"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/33d05c22d6f227c5ae171c46df2f6f8bf48047ea"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/80d95d92f828cfcace955d673637d944178b435f"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Received"
}



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