igmp: Fix data-races around sysctl_igmp_qrv.

{
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  "url": "https://osv.dev/vulnerability/CVE-2022-49589",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "igmp: Fix data-races around sysctl_igmp_qrv.",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: igmp: Fix data-races around sysctl_igmp_qrv. While reading sysctl_igmp_qrv, it can be changed concurrently. Thus, we need to add READ_ONCE() to its readers. This test can be packed into a helper, so such changes will be in the follow-up series after net is merged into net-next. qrv ?: READ_ONCE(net->ipv4.sysctl_igmp_qrv);",
    "evidence": "osv:CVE-2022-49589",
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      "modified": "2026-10-28T02:30:51.571829855Z",
      "provider": "osv",
      "references": [
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        "https://git.kernel.org/stable/c/9eeb3a7702998bdccbfcc37997b5dd9215b9a7f7",
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        "https://git.kernel.org/stable/c/e20dd1b0e0ea15bee1e528536a0840dba972ca0e",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49589.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2022-49589",
        "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
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  "source_id": "core-osv",
  "document_id": 520125,
  "published_at": "2025-02-26T02:23:23.07+00:00"
}