CVE-2026-97572 (GCVE-0-2026-97572)
Vulnerability from cvelistv5
Published
2026-09-25 10:21
Modified
2026-10-19 09:09
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: bnxt_en: Propagate RX ring init failures in bnxt_init_nic() bnxt_init_rx_rings() returns an error when bnxt_alloc_one_rx_ring() fails, but bnxt_init_nic() discards that return value and calls bnxt_init_chip(), which enables TPA. If an allocation fails, this could leave rxr->rx_tpa[] partially zeroed and TPA would be enabled over an array with zeroed entries. This would lead to a zeroed DMA address being handed out if the agg_idx is translated to a SW index at a zeroed entry. Fix this by propagating the error out of bnxt_init_nic(). Both callers already check its return value and unwind with bnxt_free_skbs() and bnxt_free_mem(), which tolerate a partially initialized RX ring.
References
Impacted products
Vendor Product Version
Linux Linux Version: c0c050c58d840994ba842ad1c338a98e7c12b764
Version: c0c050c58d840994ba842ad1c338a98e7c12b764
Version: c0c050c58d840994ba842ad1c338a98e7c12b764
Version: c0c050c58d840994ba842ad1c338a98e7c12b764
Version: c0c050c58d840994ba842ad1c338a98e7c12b764
Version: c0c050c58d840994ba842ad1c338a98e7c12b764
Version: c0c050c58d840994ba842ad1c338a98e7c12b764
Version: c0c050c58d840994ba842ad1c338a98e7c12b764
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{
  "containers": {
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          "programFiles": [
            "drivers/net/ethernet/broadcom/bnxt/bnxt.c"
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      "cpeApplicability": [
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              "operator": "OR"
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          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbnxt_en: Propagate RX ring init failures in bnxt_init_nic()\n\nbnxt_init_rx_rings() returns an error when bnxt_alloc_one_rx_ring()\nfails, but bnxt_init_nic() discards that return value and calls\nbnxt_init_chip(), which enables TPA.\n\nIf an allocation fails, this could leave rxr-\u003erx_tpa[] partially zeroed\nand TPA would be enabled over an array with zeroed entries. This would\nlead to a zeroed DMA address being handed out if the agg_idx is\ntranslated to a SW index at a zeroed entry.\n\nFix this by propagating the error out of bnxt_init_nic(). Both callers\nalready check its return value and unwind with bnxt_free_skbs() and\nbnxt_free_mem(), which tolerate a partially initialized RX ring."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-19T09:09:34.905Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/e40641638743b4b848d5ed78a0565afffc359d8e"
        },
        {
          "url": "https://git.kernel.org/stable/c/6b24eca42619b93f69aebc2aa0a9fd28ac9a5085"
        },
        {
          "url": "https://git.kernel.org/stable/c/1f2d333ae2e1a73b7cc1c2a627587024cd147c01"
        },
        {
          "url": "https://git.kernel.org/stable/c/c3eb07e78e628243cbb9bbb0115db802fb7a303f"
        },
        {
          "url": "https://git.kernel.org/stable/c/daadccd062fdca5e77a8cc22ffe35857803b6c49"
        },
        {
          "url": "https://git.kernel.org/stable/c/b4c40f2c80d7bf50648878bc206a39adfbfaec6c"
        },
        {
          "url": "https://git.kernel.org/stable/c/dfd73af81cdb9f7b399754a59e2658a08211bee5"
        },
        {
          "url": "https://git.kernel.org/stable/c/8e6a850c0746bb4be167aedf1ee57469fcda09a9"
        }
      ],
      "title": "bnxt_en: Propagate RX ring init failures in bnxt_init_nic()",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
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  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-97572",
    "datePublished": "2026-09-25T10:21:56.826Z",
    "dateReserved": "2026-09-24T16:01:01.155Z",
    "dateUpdated": "2026-10-19T09:09:34.905Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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