ipv4: Handle attempt to delete multipath route when fib_info contains an nh reference

{
  "id": "31ed7b2852776d33effec6cb2bd0891bb180be2c8e497fa35df90f9421970213",
  "url": "https://osv.dev/vulnerability/CVE-2022-48999",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "ipv4: Handle attempt to delete multipath route when fib_info contains an nh reference",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: ipv4: Handle attempt to delete multipath route when fib_info contains an nh reference Gwangun Jung reported a slab-out-of-bounds access in fib_nh_match: fib_nh_match+0xf98/0x1130 linux-6.0-rc7/net/ipv4/fib_semantics.c:961 fib_table_delete+0x5f3/0xa40 linux-6.0-rc7/net/ipv4/fib_trie.c:1753 inet_rtm_delroute+0x2b3/0x380 linux-6.0-rc7/net/ipv4/fib_frontend.c:874 Separate nexthop objects are mutually exclusive with the legacy multipath spec. Fix fib_nh_match to return if the config for the to be deleted route contains a multipath spec while the fib_info is using a nexthop object.",
    "evidence": "osv:CVE-2022-48999",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
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            "value": "5.4.226",
            "evidence": "/affected/1/ranges"
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            "evidence": "/affected/1/ranges"
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          {
            "value": "5.15.82",
            "evidence": "/affected/1/ranges"
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          {
            "value": "6.0.12",
            "evidence": "/affected/1/ranges"
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    ],
    "severity": "high",
    "structured": {
      "id": "CVE-2022-48999",
      "aliases": [
        "CVE-2022-48999"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H"
        }
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              "type": "ECOSYSTEM",
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          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
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      ],
      "modified": "2026-10-28T02:30:33.102815958Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/0b5394229ebae09afc07aabccb5ffd705ffd250e",
        "https://git.kernel.org/stable/c/25174d91e4a32a24204060d283bd5fa6d0ddf133",
        "https://git.kernel.org/stable/c/61b91eb33a69c3be11b259c5ea484505cd79f883",
        "https://git.kernel.org/stable/c/bb20a2ae241be846bc3c11ea4b3a3c69e41d51f2",
        "https://git.kernel.org/stable/c/cc3cd130ecfb8b0ae52e235e487bae3f16a24a32",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/48xxx/CVE-2022-48999.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2022-48999",
        "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/2022/48xxx/CVE-2022-48999.json"
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    "related_cves": [
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        "value": "CVE-2022-48999",
        "evidence": "/id"
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    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
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  "source_id": "core-osv",
  "document_id": 499821,
  "published_at": "2024-10-21T20:06:14.118+00:00"
}