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GHSA-R9FC-RVH2-M2X5

Vulnerability from github – Published: 2026-07-25 12:31 – Updated: 2026-07-25 12:31

Details

In the Linux kernel, the following vulnerability has been resolved:

wifi: rtw89: correct drop logic for malformed AMPDU frames

The previous commit aims to fix issue caused by malformed AMPDU frames. But the drop logic fails to deal with the first AMPDU packet paired with certain range of sequence number, and leads to unexpected packet drop. It is more likely to encounter this failure when there are busy traffic during rekey process and could lead to disconnection from the AP. Fix this by adding a initial state judgement and only reset status during pairwise rekey.

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{
  "affected": [],
  "aliases": [
    "CVE-2026-64506"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-07-25T10:17:36Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: rtw89: correct drop logic for malformed AMPDU frames\n\nThe previous commit aims to fix issue caused by malformed AMPDU frames.\nBut the drop logic fails to deal with the first AMPDU packet paired with\ncertain range of sequence number, and leads to unexpected packet drop.\nIt is more likely to encounter this failure when there are busy traffic\nduring rekey process and could lead to disconnection from the AP.\nFix this by adding a initial state judgement and only reset status\nduring pairwise rekey.",
  "id": "GHSA-r9fc-rvh2-m2x5",
  "modified": "2026-07-25T12:31:38Z",
  "published": "2026-07-25T12:31:38Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-64506"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/63ccdfac8677387dfdbd9d4336089e9823280704"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/994994cfadaf1fd362dea9b8d9d633f85dc1b3c3"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2026-64506 (GCVE-0-2026-64506)

Vulnerability from cvelistv5 – Published: 2026-07-25 08:52 – Updated: 2026-08-17 04:56

Title

wifi: rtw89: correct drop logic for malformed AMPDU frames

Summary

In the Linux kernel, the following vulnerability has been resolved: wifi: rtw89: correct drop logic for malformed AMPDU frames The previous commit aims to fix issue caused by malformed AMPDU frames. But the drop logic fails to deal with the first AMPDU packet paired with certain range of sequence number, and leads to unexpected packet drop. It is more likely to encounter this failure when there are busy traffic during rekey process and could lead to disconnection from the AP. Fix this by adding a initial state judgement and only reset status during pairwise rekey.

Severity

No CVSS data available.

Assigner

Linux mitre root

References

2 references

URL	Tags
https://git.kernel.org/stable/c/994994cfadaf1fd36…
https://git.kernel.org/stable/c/63ccdfac8677387df…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: bda294ed0ed05ada2a832b19a55dd4a6fa72b1a1 , < 994994cfadaf1fd362dea9b8d9d633f85dc1b3c3 (git) Affected: bda294ed0ed05ada2a832b19a55dd4a6fa72b1a1 , < 63ccdfac8677387dfdbd9d4336089e9823280704 (git)
Linux	Linux	Affected: 7.1 Unaffected: 0 , < 7.1 (semver) Unaffected: 7.1.4 , ≤ 7.1.* (semver) Unaffected: 7.2 , ≤ * (original_commit_for_fix)

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/wireless/realtek/rtw89/core.c",
            "drivers/net/wireless/realtek/rtw89/mac80211.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "994994cfadaf1fd362dea9b8d9d633f85dc1b3c3",
              "status": "affected",
              "version": "bda294ed0ed05ada2a832b19a55dd4a6fa72b1a1",
              "versionType": "git"
            },
            {
              "lessThan": "63ccdfac8677387dfdbd9d4336089e9823280704",
              "status": "affected",
              "version": "bda294ed0ed05ada2a832b19a55dd4a6fa72b1a1",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/wireless/realtek/rtw89/core.c",
            "drivers/net/wireless/realtek/rtw89/mac80211.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "7.1"
            },
            {
              "lessThan": "7.1",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.1.*",
              "status": "unaffected",
              "version": "7.1.4",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.2",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.1.4",
                  "versionStartIncluding": "7.1",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.2",
                  "versionStartIncluding": "7.1",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: rtw89: correct drop logic for malformed AMPDU frames\n\nThe previous commit aims to fix issue caused by malformed AMPDU frames.\nBut the drop logic fails to deal with the first AMPDU packet paired with\ncertain range of sequence number, and leads to unexpected packet drop.\nIt is more likely to encounter this failure when there are busy traffic\nduring rekey process and could lead to disconnection from the AP.\nFix this by adding a initial state judgement and only reset status\nduring pairwise rekey."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-17T04:56:56.610Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/994994cfadaf1fd362dea9b8d9d633f85dc1b3c3"
        },
        {
          "url": "https://git.kernel.org/stable/c/63ccdfac8677387dfdbd9d4336089e9823280704"
        }
      ],
      "title": "wifi: rtw89: correct drop logic for malformed AMPDU frames",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-64506",
    "datePublished": "2026-07-25T08:52:00.322Z",
    "dateReserved": "2026-07-19T15:36:31.793Z",
    "dateUpdated": "2026-08-17T04:56:56.610Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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GHSA-R9FC-RVH2-M2X5

CVE-2026-64506 (GCVE-0-2026-64506)

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