{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "314001f0bf927015e459c9d387d62a231fe93af3"
            },
            {
              "fixed": "3d3c7a3df66b2ca3d2cd1a2a0c37eb701feba713"
            },
            {
              "fixed": "d5dd55b316ca229a4cbf11729483ba5bb57233e7"
            },
            {
              "fixed": "c81c5be3826c8467945b964d0cf7f7b3d65461db"
            },
            {
              "fixed": "6e5ee08eb5858d175da6768d75d163817b6a9d4a"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "5.15.0"
            },
            {
              "fixed": "6.12.111"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.53"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.2.7"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/98xxx/CVE-2026-98394.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\naf_unix: Return immediately when manage_oob() returns NULL for 0-length buffer.\n\nFahad Alharbi reported that recv(0, MSG_PEEK) triggers busy-wait\nin unix_stream_read_generic() if recv() is blocking and the last\nskb in the queue is MSG_OOB skb.\n\nIn such a situation, TCP returns 0 immediately regardless of\nblocking or non-blocking.\n\nLet's follow the behaviour.",
  "id": "CVE-2026-98394",
  "modified": "2026-10-16T02:30:23.133549956Z",
  "published": "2026-10-14T13:25:57.287Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3d3c7a3df66b2ca3d2cd1a2a0c37eb701feba713"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6e5ee08eb5858d175da6768d75d163817b6a9d4a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c81c5be3826c8467945b964d0cf7f7b3d65461db"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d5dd55b316ca229a4cbf11729483ba5bb57233e7"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/98xxx/CVE-2026-98394.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-98394"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "af_unix: Return immediately when manage_oob() returns NULL for 0-length buffer."
}