net: fix possible store tearing in neigh_periodic_work()

{
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  "url": "https://osv.dev/vulnerability/CVE-2023-52522",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "net: fix possible store tearing in neigh_periodic_work()",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: net: fix possible store tearing in neigh_periodic_work() While looking at a related syzbot report involving neigh_periodic_work(), I found that I forgot to add an annotation when deleting an RCU protected item from a list. Readers use rcu_deference(*np), we need to use either rcu_assign_pointer() or WRITE_ONCE() on writer side to prevent store tearing. I use rcu_assign_pointer() to have lockdep support, this was the choice made in neigh_flush_dev().",
    "evidence": "osv:CVE-2023-52522",
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      "aliases": [
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      "modified": "2026-10-28T02:30:33.385648084Z",
      "provider": "osv",
      "references": [
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        "https://git.kernel.org/stable/c/25563b581ba3a1f263a00e8c9a97f5e7363be6fd",
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        "https://git.kernel.org/stable/c/f82aac8162871e87027692b36af335a2375d4580",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/52xxx/CVE-2023-52522.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2023-52522",
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  "source_id": "core-osv",
  "document_id": 500263,
  "published_at": "2024-03-02T21:52:29.71+00:00"
}