xdp: Remove WARN() from __xdp_reg_mem_model()

{
  "id": "081ab4c03a202a6a6ff0a67c4939cd710e4c7e598a98b4791326b88ee66d80b3",
  "url": "https://osv.dev/vulnerability/CVE-2024-42082",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "xdp: Remove WARN() from __xdp_reg_mem_model()",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: xdp: Remove WARN() from __xdp_reg_mem_model() syzkaller reports a warning in __xdp_reg_mem_model(). The warning occurs only if __mem_id_init_hash_table() returns an error. It returns the error in two cases: 1. memory allocation fails; 2. rhashtable_init() fails when some fields of rhashtable_params struct are not initialized properly. The second case cannot happen since there is a static const rhashtable_params struct with valid fields. So, warning is only triggered when there is a problem with memory allocation. Thus, there is no sense in using WARN() to handle this error and it can be safely removed. WARNING: CPU: 0 PID: 5065 at net/core/xdp.c:299 __xdp_reg_mem_model+0x2d9/0x650 net/core/xdp.c:299 CPU: 0 PID: 5065 Comm: syz-executor883 Not tainted 6.8.0-syzkaller-05271-gf99c5f563c17 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 RIP: 0010:__xdp_reg_mem_model+0x2d9/0x650 net/core/xdp.c:299 Call Trace: xdp_reg_mem_model+0x22/0x40 net/core/xdp.c:344 xdp_test_run_setup net/bpf/test_run.c:188 [inline] bpf_test_run_xdp_live+0x365/0x1e90 net/bpf/test_run.c:377 bpf_prog_test_run_xdp+0x813/0x11b0 net/bpf/test_run.c:1267 bpf_prog_test_run+0x33a/0x3b0 kernel/bpf/syscall.c:4240 __sys_bpf+0x48d/0x810 kernel/bpf/syscall.c:5649 __do_sys_bpf kernel/bpf/syscall.c:5738 [inline] __se_sys_bpf kernel/bpf/syscall.c:5736 [inline] __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:5736 do_sy",
    "evidence": "osv:CVE-2024-42082",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "5.10.221",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "5.15.162",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.1.97",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.6.37",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.9.8",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "CVE-2024-42082",
      "aliases": [
        "CVE-2024-42082"
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
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                {
                  "fixed": "1d3e3b3aa2cbe9bc7db9a7f8673a9fa6d2990d54"
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                  "fixed": "4e0c539ee265d5c6e7fa7d229cd4aa7bc01816e2"
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                  "fixed": "14e51ea78b4ccacb7acb1346b9241bb790a2054c"
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                  "fixed": "f92298b0467fd77edc4c1a2c3e48833e69840ec4"
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                {
                  "fixed": "7e9f79428372c6eab92271390851be34ab26bfb4"
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            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-42082.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "4.18.0"
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                {
                  "fixed": "5.10.221"
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            {
              "type": "ECOSYSTEM",
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                  "introduced": "6.7.0"
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          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-42082.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:45.992461729Z",
      "provider": "osv",
      "references": [
        "https://cert-portal.siemens.com/productcert/html/ssa-265688.html",
        "https://cert-portal.siemens.com/productcert/html/ssa-355557.html",
        "https://cert-portal.siemens.com/productcert/html/ssa-613116.html",
        "https://git.kernel.org/stable/c/1095b8efbb13a6a5fa583ed373ee1ccab29da2d0",
        "https://git.kernel.org/stable/c/14e51ea78b4ccacb7acb1346b9241bb790a2054c",
        "https://git.kernel.org/stable/c/1d3e3b3aa2cbe9bc7db9a7f8673a9fa6d2990d54",
        "https://git.kernel.org/stable/c/4e0c539ee265d5c6e7fa7d229cd4aa7bc01816e2",
        "https://git.kernel.org/stable/c/7e9f79428372c6eab92271390851be34ab26bfb4",
        "https://git.kernel.org/stable/c/f92298b0467fd77edc4c1a2c3e48833e69840ec4",
        "https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/42xxx/CVE-2024-42082.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2024-42082",
        "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/2024/42xxx/CVE-2024-42082.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2024-42082",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 514035,
  "published_at": "2024-07-29T15:52:43.989+00:00"
}