bnx2x: Fix multiple UBSAN array-index-out-of-bounds

{
  "id": "e0600b0c175da255459690ca02a805bf0085d32a5dac5752a6d48eb1c821ff7e",
  "url": "https://osv.dev/vulnerability/CVE-2024-42148",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "bnx2x: Fix multiple UBSAN array-index-out-of-bounds",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: bnx2x: Fix multiple UBSAN array-index-out-of-bounds Fix UBSAN warnings that occur when using a system with 32 physical cpu cores or more, or when the user defines a number of Ethernet queues greater than or equal to FP_SB_MAX_E1x using the num_queues module parameter. Currently there is a read/write out of bounds that occurs on the array \"struct stats_query_entry query\" present inside the \"bnx2x_fw_stats_req\" struct in \"drivers/net/ethernet/broadcom/bnx2x/bnx2x.h\". Looking at the definition of the \"struct stats_query_entry query\" array: struct stats_query_entry query[FP_SB_MAX_E1x+ BNX2X_FIRST_QUEUE_QUERY_IDX]; FP_SB_MAX_E1x is defined as the maximum number of fast path interrupts and has a value of 16, while BNX2X_FIRST_QUEUE_QUERY_IDX has a value of 3 meaning the array has a total size of 19. Since accesses to \"struct stats_query_entry query\" are offset-ted by BNX2X_FIRST_QUEUE_QUERY_IDX, that means that the total number of Ethernet queues should not exceed FP_SB_MAX_E1x (16). However one of these queues is reserved for FCOE and thus the number of Ethernet queues should be set to [FP_SB_MAX_E1x -1] (15) if FCOE is enabled or [FP_SB_MAX_E1x] (16) if it is not. This is also described in a comment in the source code in drivers/net/ethernet/broadcom/bnx2x/bnx2x.h just above the Macro definition of FP_SB_MAX_E1x. Below is the part of this explanation that it important for this patch /* * The total number of L2 q",
    "evidence": "osv:CVE-2024-42148",
    "products": [
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          "evidence": "/affected/1/package/name"
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        "prerequisites": [],
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    "severity": "unknown",
    "structured": {
      "id": "CVE-2024-42148",
      "aliases": [
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      "modified": "2026-10-28T02:30:26.974944399Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/0edae06b4c227bcfaf3ce21208d49191e1009d3b",
        "https://git.kernel.org/stable/c/134061163ee5ca4759de5c24ca3bd71608891ba7",
        "https://git.kernel.org/stable/c/8b17cec33892a66bbd71f8d9a70a45e2072ae84f",
        "https://git.kernel.org/stable/c/9504a1550686f53b0bab4cab31d435383b1ee2ce",
        "https://git.kernel.org/stable/c/b9ea38e767459111a511ed4fb74abc37db95a59d",
        "https://git.kernel.org/stable/c/cbe53087026ad929cd3950508397e8892a6a2a0f",
        "https://git.kernel.org/stable/c/cfb04472ce33bee2579caf4dc9f4242522f6e26e",
        "https://git.kernel.org/stable/c/f1313ea92f82451923e28ab45a4aaa0e70e80b98",
        "https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/42xxx/CVE-2024-42148.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2024-42148",
        "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-2024-42148.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2024-42148",
        "evidence": "/id"
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    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 493151,
  "published_at": "2024-07-30T07:46:41.203+00:00"
}