CVE-2026-53087 (GCVE-0-2026-53087)

Vulnerability from cvelistv5 – Published: 2026-06-24 16:30 – Updated: 2026-06-28 06:39
VLAI
Title
net: bcmgenet: fix leaking free_bds
Summary
In the Linux kernel, the following vulnerability has been resolved: net: bcmgenet: fix leaking free_bds While reclaiming the tx queue we fast forward the write pointer to drop any data in flight. These dropped frames are not added back to the pool of free bds. We also need to tell the netdev that we are dropping said data.
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 6a84791b63044cdee3ab55eb350e6352b751f584 , < 150d06aae1839a6564ab200ef0e7291c3528bbb0 (git)
Affected: 991cd78f95f2a1d6097669afaff66aeeba35f5fd , < 52b9f80993698138b90e5ca3a72550a2501f2a96 (git)
Affected: 3877efc13053408f4cf2e821006d6ddd1929200f , < 3c3abbcfa05bad17965498ff7cc94c2418fa94b3 (git)
Affected: f1bacae8b655163dcbc3c54b9e714ef1a8986d7b , < 25ff3a3e47ea635ec08dc93e84dd2bfe15abfebb (git)
Affected: f1bacae8b655163dcbc3c54b9e714ef1a8986d7b , < ac4a29c331ecb5b10240c44247a8e010c95bc15b (git)
Affected: f1bacae8b655163dcbc3c54b9e714ef1a8986d7b , < 3f3168300efb839028328d720ab3962f91d6a0d0 (git)
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Linux Linux Affected: 6.15
Unaffected: 0 , < 6.15 (semver)
Unaffected: 6.18.33 , ≤ 6.18.* (semver)
Unaffected: 7.0.10 , ≤ 7.0.* (semver)
Unaffected: 7.1 , ≤ * (original_commit_for_fix)
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/ethernet/broadcom/genet/bcmgenet.c"
          ],
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              "versionType": "git"
            }
          ]
        },
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          "product": "Linux",
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          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
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              "version": "6.18.33",
              "versionType": "semver"
            },
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              "status": "unaffected",
              "version": "7.0.10",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
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                },
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                },
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                }
              ],
              "negate": false,
              "operator": "OR"
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      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: bcmgenet: fix leaking free_bds\n\nWhile reclaiming the tx queue we fast forward the write pointer to\ndrop any data in flight. These dropped frames are not added back\nto the pool of free bds. We also need to tell the netdev that we\nare dropping said data."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
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      ],
      "providerMetadata": {
        "dateUpdated": "2026-06-28T06:39:09.752Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
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        },
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        },
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        },
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        },
        {
          "url": "https://git.kernel.org/stable/c/3f3168300efb839028328d720ab3962f91d6a0d0"
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      ],
      "title": "net: bcmgenet: fix leaking free_bds",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-53087",
    "datePublished": "2026-06-24T16:30:26.881Z",
    "dateReserved": "2026-06-09T07:44:35.384Z",
    "dateUpdated": "2026-06-28T06:39:09.752Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-53087",
      "date": "2026-07-02",
      "epss": "0.00376",
      "percentile": "0.29576"
    },
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  }
}


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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.

Sightings

Author Source Type Date Other

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.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • 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.


Detection rules are retrieved from Rulezet.