CVE-2025-68188

Full vulnerability record from the local CVENow database.
Description

In the Linux kernel, the following vulnerability has been resolved: tcp: use dst_dev_rcu() in tcp_fastopen_active_disable_ofo_check() Use RCU to avoid a pair of atomic operations and a potential UAF on dst_dev()->flags.
Severity
Not scored
CVSS score
Not available
Vulnerability status
Deferred
Source identifier
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Published
2025-12-16 14:15:51.460000
Last modified
2026-10-30 13:18:17.777000
View original CVE JSON
{
  "id": "CVE-2025-68188",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "published": "2025-12-16T14:15:51.460",
  "lastModified": "2026-10-30T13:18:17.777",
  "vulnStatus": "Deferred",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ntcp: use dst_dev_rcu() in tcp_fastopen_active_disable_ofo_check()\n\nUse RCU to avoid a pair of atomic operations and a potential\nUAF on dst_dev()->flags."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\ntcp: usar dst_dev_rcu() en tcp_fastopen_active_disable_ofo_check()\n\nUsar RCU para evitar un par de operaciones atómicas y una potencial UAF en dst_dev() -> flags."
    }
  ],
  "affected": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "affectedData": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "programFiles": [
            "net/ipv4/tcp_fastopen.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "versions": [
            {
              "version": "cf1ef3f0719b4dcb74810ed507e2a2540f9811b4",
              "lessThan": "d3fe882ed33a1e45921764f4615bf82db79d8dcd",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "cf1ef3f0719b4dcb74810ed507e2a2540f9811b4",
              "lessThan": "e61dfd906ad027a4ade1f89e5fe706a3fcd52527",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "cf1ef3f0719b4dcb74810ed507e2a2540f9811b4",
              "lessThan": "bc2b881a0896c111c1041d8bb1f92a3b3873ace5",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "cf1ef3f0719b4dcb74810ed507e2a2540f9811b4",
              "lessThan": "06da08d9355bf8e2070459bbedbe372ccc02cc0e",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "cf1ef3f0719b4dcb74810ed507e2a2540f9811b4",
              "lessThan": "b62a59c18b692f892dcb8109c1c2e653b2abc95c",
              "versionType": "git",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "programFiles": [
            "net/ipv4/tcp_fastopen.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "versions": [
            {
              "version": "4.12",
              "status": "affected"
            },
            {
              "version": "0",
              "lessThan": "4.12",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "6.1.191",
              "lessThanOrEqual": "6.1.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "6.6.160",
              "lessThanOrEqual": "6.6.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "6.12.58",
              "lessThanOrEqual": "6.12.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "6.17.8",
              "lessThanOrEqual": "6.17.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "6.18",
              "lessThanOrEqual": "*",
              "versionType": "original_commit_for_fix",
              "status": "unaffected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {},
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/06da08d9355bf8e2070459bbedbe372ccc02cc0e",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/b62a59c18b692f892dcb8109c1c2e653b2abc95c",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/bc2b881a0896c111c1041d8bb1f92a3b3873ace5",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/d3fe882ed33a1e45921764f4615bf82db79d8dcd",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/e61dfd906ad027a4ade1f89e5fe706a3fcd52527",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ]
}