udp: Fix a data-race around sysctl_udp_l3mdev_accept.

{
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  "url": "https://osv.dev/vulnerability/CVE-2022-49577",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "udp: Fix a data-race around sysctl_udp_l3mdev_accept.",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: udp: Fix a data-race around sysctl_udp_l3mdev_accept. While reading sysctl_udp_l3mdev_accept, it can be changed concurrently. Thus, we need to add READ_ONCE() to its reader.",
    "evidence": "osv:CVE-2022-49577",
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    "severity": "medium",
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      "aliases": [
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      "modified": "2026-10-28T02:30:32.620202802Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/3d72bb4188c708bb16758c60822fc4dda7a95174",
        "https://git.kernel.org/stable/c/3f2ac2d6511bb0652abf4d7388d65bb9ff1c641c",
        "https://git.kernel.org/stable/c/cb0d28934ca10f99c47e2c6f451405d6c954fe48",
        "https://git.kernel.org/stable/c/f39b03bd727a8fea62e82f10fe2e0d753b9930ff",
        "https://git.kernel.org/stable/c/fcaef69c79ec222e55643e666b80b221e70fa6a8",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49577.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2022-49577",
        "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
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    "severity_evidence": "/severity/0/score"
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  "source_id": "core-osv",
  "document_id": 499327,
  "published_at": "2025-02-26T02:23:17.12+00:00"
}