tcp: Fix data-races around sysctl_tcp_slow_start_after_idle.

{
  "id": "24711fbd4a0c0356906edd330e5683f4faaab33ae3f4c1a2ad826a5eb8ae038d",
  "url": "https://osv.dev/vulnerability/CVE-2022-49572",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "tcp: Fix data-races around sysctl_tcp_slow_start_after_idle.",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: tcp: Fix data-races around sysctl_tcp_slow_start_after_idle. While reading sysctl_tcp_slow_start_after_idle, it can be changed concurrently. Thus, we need to add READ_ONCE() to its readers.",
    "evidence": "osv:CVE-2022-49572",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "4.19.254",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "5.4.208",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "5.10.134",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "5.15.58",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "5.18.15",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "medium",
    "structured": {
      "id": "CVE-2022-49572",
      "aliases": [
        "CVE-2022-49572"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
                {
                  "introduced": "35089bb203f44e33b6bbb6c4de0b0708f9a48921"
                },
                {
                  "fixed": "3b26e11b07a09b31247688bec61e2925d4a571b6"
                },
                {
                  "fixed": "369d99c2b89f54473adcf9acdf40ea562b5a6e0e"
                },
                {
                  "fixed": "0e3f82a03ec8c3808e87283e12946227415706c9"
                },
                {
                  "fixed": "41aeba4506f6b70ec7500c6fe202731a4ba29fe5"
                },
                {
                  "fixed": "68b6f9506747d507c7bfa374d178929b4157e8c6"
                },
                {
                  "fixed": "4845b5713ab18a1bb6e31d1fbb4d600240b8b691"
                }
              ]
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-49572.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "2.6.18"
                },
                {
                  "fixed": "4.19.254"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "4.20.0"
                },
                {
                  "fixed": "5.4.208"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "5.5.0"
                },
                {
                  "fixed": "5.10.134"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "5.11.0"
                },
                {
                  "fixed": "5.15.58"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "5.16.0"
                },
                {
                  "fixed": "5.18.15"
                }
              ]
            }
          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-49572.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:24.226572025Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/0e3f82a03ec8c3808e87283e12946227415706c9",
        "https://git.kernel.org/stable/c/369d99c2b89f54473adcf9acdf40ea562b5a6e0e",
        "https://git.kernel.org/stable/c/3b26e11b07a09b31247688bec61e2925d4a571b6",
        "https://git.kernel.org/stable/c/41aeba4506f6b70ec7500c6fe202731a4ba29fe5",
        "https://git.kernel.org/stable/c/4845b5713ab18a1bb6e31d1fbb4d600240b8b691",
        "https://git.kernel.org/stable/c/68b6f9506747d507c7bfa374d178929b4157e8c6",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49572.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2022-49572",
        "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
      ],
      "provider_metadata": {
        "cna_assigner": "Linux",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49572.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2022-49572",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 490322,
  "published_at": "2025-02-26T02:23:14.667+00:00"
}