{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "4f038a6a02d20859a3479293cbf172b0f14cbdd6"
            },
            {
              "fixed": "33d05c22d6f227c5ae171c46df2f6f8bf48047ea"
            },
            {
              "fixed": "80d95d92f828cfcace955d673637d944178b435f"
            },
            {
              "fixed": "266297692f97008ca48bc311775c087c59bd7fe3"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "81a5174e64ce4fb7b7a2f6499b835c904c9451ee"
            },
            {
              "last_affected": "ec9faff49a4ea27731de39cb887b7e590e93157b"
            },
            {
              "last_affected": "c5ed0eaddcbda56079091fc3876b140a6e70a548"
            },
            {
              "last_affected": "a065b996052656a65afc51ad82336dc55ae4c72f"
            },
            {
              "last_affected": "adee9db710a6117b978a25ed4153846b7c56ec9a"
            },
            {
              "last_affected": "5eb3fdc4b6281b29e830300c866a36d90442b1f0"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "5.15.181"
            },
            {
              "fixed": "5.16"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "6.1.135"
            },
            {
              "fixed": "6.2"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "6.6.88"
            },
            {
              "fixed": "6.7"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "6.12.24"
            },
            {
              "fixed": "6.13"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "6.13.12"
            },
            {
              "fixed": "6.14"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "6.14.3"
            },
            {
              "fixed": "6.15"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "6.15.0"
            },
            {
              "fixed": "6.18.35"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.0.12"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/63xxx/CVE-2026-63999.json"
  },
  "details": "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",
  "modified": "2026-07-21T03:42:00.171416172Z",
  "published": "2026-07-19T14:56:17.383Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/266297692f97008ca48bc311775c087c59bd7fe3"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/33d05c22d6f227c5ae171c46df2f6f8bf48047ea"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/80d95d92f828cfcace955d673637d944178b435f"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/63xxx/CVE-2026-63999.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-63999"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.8.0",
  "summary": "ethtool: rss: fix indir_table and hkey leak on get_rxfh failure"
}