bpf: Propagate error from htab_lock_bucket() to userspace

{
  "id": "70a52c32686913a15547b6879fba179e2b81b7970508f45be8807a648094213d",
  "url": "https://osv.dev/vulnerability/CVE-2022-50490",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "bpf: Propagate error from htab_lock_bucket() to userspace",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: bpf: Propagate error from htab_lock_bucket() to userspace In __htab_map_lookup_and_delete_batch() if htab_lock_bucket() returns -EBUSY, it will go to next bucket. Going to next bucket may not only skip the elements in current bucket silently, but also incur out-of-bound memory access or expose kernel memory to userspace if current bucket_cnt is greater than bucket_size or zero. Fixing it by stopping batch operation and returning -EBUSY when htab_lock_bucket() fails, and the application can retry or skip the busy batch as needed.",
    "evidence": "osv:CVE-2022-50490",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "5.15.75",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "5.19.17",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.0.3",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "high",
    "structured": {
      "id": "CVE-2022-50490",
      "aliases": [
        "CVE-2022-50490"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
                {
                  "introduced": "20b6cc34ea74b6a84599c1f8a70f3315b56a1883"
                },
                {
                  "fixed": "0e13425104903970a5ede853082d3bbb4edec6f3"
                },
                {
                  "fixed": "6bfee6eb3d6b96ae730a542909dd22b5f9f50d58"
                },
                {
                  "fixed": "4f1f39a8f1ce1b24fee6852d7dcd704ce7c4334d"
                },
                {
                  "fixed": "66a7a92e4d0d091e79148a4c6ec15d1da65f4280"
                }
              ]
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-50490.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "5.11.0"
                },
                {
                  "fixed": "5.15.75"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "5.16.0"
                },
                {
                  "fixed": "5.19.17"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "5.20.0"
                },
                {
                  "fixed": "6.0.3"
                }
              ]
            }
          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-50490.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:33.050662845Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/0e13425104903970a5ede853082d3bbb4edec6f3",
        "https://git.kernel.org/stable/c/4f1f39a8f1ce1b24fee6852d7dcd704ce7c4334d",
        "https://git.kernel.org/stable/c/66a7a92e4d0d091e79148a4c6ec15d1da65f4280",
        "https://git.kernel.org/stable/c/6bfee6eb3d6b96ae730a542909dd22b5f9f50d58",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/50xxx/CVE-2022-50490.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2022-50490",
        "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-2022-50490.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2022-50490",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 499782,
  "published_at": "2025-10-04T15:43:43.79+00:00"
}