CVE-2026-97574 (GCVE-0-2026-97574)

Vulnerability from cvelistv5 – Published: 2026-09-25 10:21 – Updated: 2026-09-25 10:21
VLAI
Title
bnxt_en: Don't free the live ring's TPA state on queue restart failure
Summary
In the Linux kernel, the following vulnerability has been resolved: bnxt_en: Don't free the live ring's TPA state on queue restart failure bnxt_queue_mem_alloc() shallow copies the live RX ring into the clone: memcpy(clone, rxr, sizeof(*rxr)); the code currently clears pointers that the clone owns (such as rx_agg_bmap), but rx_tpa and rx_tpa_idx_map are left pointing at memory of the live ring that was cloned. If an allocation failure happens later and the err_free_tpa_info label is taken, the live ring's memory can be freed while still in use. Fix this by initializing the clone's pointers to NULL to prevent live ring state from being freed inadvertently.
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: bd649c5cc958169b8a8a3e77ea926d92d472b02a , < 8ade95619cbfd1fc57f0f1a9a5ebdca2345a8d27 (git)
Affected: bd649c5cc958169b8a8a3e77ea926d92d472b02a , < 0596a7caa6fc283e142716739099c038d8714082 (git)
Affected: bd649c5cc958169b8a8a3e77ea926d92d472b02a , < 5ce7f36c334d723954855ac769ede2fe0e8f89c8 (git)
Affected: 0997443906b96a051011f220a61e6dce4602ec54 (git)
Affected: 6.12.20 , < 6.13 (semver)
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Linux Linux Affected: 6.13
Unaffected: 0 , < 6.13 (semver)
Unaffected: 6.18.53 , ≤ 6.18.* (semver)
Unaffected: 7.2.7 , ≤ 7.2.* (semver)
Unaffected: 7.3-rc3 , ≤ * (original_commit_for_fix)
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{
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            "drivers/net/ethernet/broadcom/bnxt/bnxt.c"
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              "operator": "OR"
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbnxt_en: Don\u0027t free the live ring\u0027s TPA state on queue restart failure\n\nbnxt_queue_mem_alloc() shallow copies the live RX ring into the clone:\n\n  memcpy(clone, rxr, sizeof(*rxr));\n\nthe code currently clears pointers that the clone owns (such as\nrx_agg_bmap), but rx_tpa and rx_tpa_idx_map are left pointing at memory\nof the live ring that was cloned.\n\nIf an allocation failure happens later and the err_free_tpa_info label\nis taken, the live ring\u0027s memory can be freed while still in use.\n\nFix this by initializing the clone\u0027s pointers to NULL to prevent live\nring state from being freed inadvertently."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-25T10:21:58.062Z",
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      ],
      "title": "bnxt_en: Don\u0027t free the live ring\u0027s TPA state on queue restart failure",
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    "datePublished": "2026-09-25T10:21:58.062Z",
    "dateReserved": "2026-09-24T16:01:01.156Z",
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        "descriptions": [
          {
            "lang": "en",
            "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbnxt_en: Don\u0027t free the live ring\u0027s TPA state on queue restart failure\n\nbnxt_queue_mem_alloc() shallow copies the live RX ring into the clone:\n\n  memcpy(clone, rxr, sizeof(*rxr));\n\nthe code currently clears pointers that the clone owns (such as\nrx_agg_bmap), but rx_tpa and rx_tpa_idx_map are left pointing at memory\nof the live ring that was cloned.\n\nIf an allocation failure happens later and the err_free_tpa_info label\nis taken, the live ring\u0027s memory can be freed while still in use.\n\nFix this by initializing the clone\u0027s pointers to NULL to prevent live\nring state from being freed inadvertently."
          }
        ],
        "id": "CVE-2026-97574",
        "lastModified": "2026-09-25T11:17:08.127",
        "metrics": {},
        "published": "2026-09-25T11:17:08.127",
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        "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "vulnStatus": "Received"
      }
    }
  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.