ipv6/sit: use DEV_STATS_INC() to avoid data-races

{
  "id": "342baf3d382a2a6bf8495d01a3af0276765543473c2882135a10f4c560c3e172",
  "url": "https://osv.dev/vulnerability/CVE-2022-50764",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "ipv6/sit: use DEV_STATS_INC() to avoid data-races",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: ipv6/sit: use DEV_STATS_INC() to avoid data-races syzbot/KCSAN reported that multiple cpus are updating dev->stats.tx_error concurrently. This is because sit tunnels are NETIF_F_LLTX, meaning their ndo_start_xmit() is not protected by a spinlock. While original KCSAN report was about tx path, rx path has the same issue.",
    "evidence": "osv:CVE-2022-50764",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "5.15.86",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.0.16",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.1.2",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "CVE-2022-50764",
      "aliases": [
        "CVE-2022-50764"
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
                {
                  "introduced": "8df40d1033d64597dcf1efd4f7547e817f7a953b"
                },
                {
                  "fixed": "222cc04356984f3f98acfa756a69d4bed7c501ac"
                },
                {
                  "fixed": "4eed93bb3e57b8cc78d17166a14e40a73276015a"
                },
                {
                  "fixed": "207501a986831174df09a36a8cb62a28f92f0dc8"
                },
                {
                  "fixed": "cb34b7cf17ecf33499c9298943f85af247abc1e9"
                }
              ]
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-50764.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "2.6.37"
                },
                {
                  "fixed": "5.15.86"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "5.16.0"
                },
                {
                  "fixed": "6.0.16"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.1.0"
                },
                {
                  "fixed": "6.1.2"
                }
              ]
            }
          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-50764.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:48.651405471Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/207501a986831174df09a36a8cb62a28f92f0dc8",
        "https://git.kernel.org/stable/c/222cc04356984f3f98acfa756a69d4bed7c501ac",
        "https://git.kernel.org/stable/c/4eed93bb3e57b8cc78d17166a14e40a73276015a",
        "https://git.kernel.org/stable/c/cb34b7cf17ecf33499c9298943f85af247abc1e9",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/50xxx/CVE-2022-50764.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2022-50764",
        "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/2022/50xxx/CVE-2022-50764.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2022-50764",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 517094,
  "published_at": "2025-12-24T13:05:55.423+00:00"
}