Vulnerability-Lookup

GHSA-365G-RR2H-RX65

Vulnerability from github – Published: 2026-02-18 18:30 – Updated: 2026-03-18 18:31

Details

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

wifi: rtl8xxxu: fix slab-out-of-bounds in rtl8xxxu_sta_add

The driver does not set hw->sta_data_size, which causes mac80211 to allocate insufficient space for driver private station data in __sta_info_alloc(). When rtl8xxxu_sta_add() accesses members of struct rtl8xxxu_sta_info through sta->drv_priv, this results in a slab-out-of-bounds write.

KASAN report on RISC-V (VisionFive 2) with RTL8192EU adapter:

BUG: KASAN: slab-out-of-bounds in rtl8xxxu_sta_add+0x31c/0x346 Write of size 8 at addr ffffffd6d3e9ae88 by task kworker/u16:0/12

Set hw->sta_data_size to sizeof(struct rtl8xxxu_sta_info) during probe, similar to how hw->vif_data_size is configured. This ensures mac80211 allocates sufficient space for the driver's per-station private data.

Tested on StarFive VisionFive 2 v1.2A board.

Severity

7.8 (High)


                  
                    CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2025-71234"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-787"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-02-18T16:22:30Z",
    "severity": "HIGH"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: rtl8xxxu: fix slab-out-of-bounds in rtl8xxxu_sta_add\n\nThe driver does not set hw-\u003esta_data_size, which causes mac80211 to\nallocate insufficient space for driver private station data in\n__sta_info_alloc(). When rtl8xxxu_sta_add() accesses members of\nstruct rtl8xxxu_sta_info through sta-\u003edrv_priv, this results in a\nslab-out-of-bounds write.\n\nKASAN report on RISC-V (VisionFive 2) with RTL8192EU adapter:\n\n  BUG: KASAN: slab-out-of-bounds in rtl8xxxu_sta_add+0x31c/0x346\n  Write of size 8 at addr ffffffd6d3e9ae88 by task kworker/u16:0/12\n\nSet hw-\u003esta_data_size to sizeof(struct rtl8xxxu_sta_info) during\nprobe, similar to how hw-\u003evif_data_size is configured. This ensures\nmac80211 allocates sufficient space for the driver\u0027s per-station\nprivate data.\n\nTested on StarFive VisionFive 2 v1.2A board.",
  "id": "GHSA-365g-rr2h-rx65",
  "modified": "2026-03-18T18:31:12Z",
  "published": "2026-02-18T18:30:40Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-71234"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/116f7bd8160c6b37d1c6939385abf90f6f6ed2f5"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5d810ba377eddee95d30766d360a14efbb3d1872"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/86c946bcc00f6390ef65e9614ae60a9377e454f8"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9a0f3fa6ecd0c9c32dbc367a57482bbf7c7d25bf"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2025-71234 (GCVE-0-2025-71234)

Vulnerability from cvelistv5 – Published: 2026-02-18 14:53 – Updated: 2026-08-05 12:12

Title

wifi: rtl8xxxu: fix slab-out-of-bounds in rtl8xxxu_sta_add

Summary

In the Linux kernel, the following vulnerability has been resolved: wifi: rtl8xxxu: fix slab-out-of-bounds in rtl8xxxu_sta_add The driver does not set hw->sta_data_size, which causes mac80211 to allocate insufficient space for driver private station data in __sta_info_alloc(). When rtl8xxxu_sta_add() accesses members of struct rtl8xxxu_sta_info through sta->drv_priv, this results in a slab-out-of-bounds write. KASAN report on RISC-V (VisionFive 2) with RTL8192EU adapter: BUG: KASAN: slab-out-of-bounds in rtl8xxxu_sta_add+0x31c/0x346 Write of size 8 at addr ffffffd6d3e9ae88 by task kworker/u16:0/12 Set hw->sta_data_size to sizeof(struct rtl8xxxu_sta_info) during probe, similar to how hw->vif_data_size is configured. This ensures mac80211 allocates sufficient space for the driver's per-station private data. Tested on StarFive VisionFive 2 v1.2A board.

Severity

8.8 (High)


                        
                          CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Assigner

Linux mitre root

References

4 references

URL	Tags
https://git.kernel.org/stable/c/5d810ba377eddee95…
https://git.kernel.org/stable/c/116f7bd8160c6b37d…
https://git.kernel.org/stable/c/9a0f3fa6ecd0c9c32…
https://git.kernel.org/stable/c/86c946bcc00f6390e…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: eef55f1545c92c7181d5083453dee1296298ad3e , < 5d810ba377eddee95d30766d360a14efbb3d1872 (git) Affected: eef55f1545c92c7181d5083453dee1296298ad3e , < 116f7bd8160c6b37d1c6939385abf90f6f6ed2f5 (git) Affected: eef55f1545c92c7181d5083453dee1296298ad3e , < 9a0f3fa6ecd0c9c32dbc367a57482bbf7c7d25bf (git) Affected: eef55f1545c92c7181d5083453dee1296298ad3e , < 86c946bcc00f6390ef65e9614ae60a9377e454f8 (git)
Linux	Linux	Affected: 6.9 Unaffected: 0 , < 6.9 (semver) Unaffected: 6.12.72 , ≤ 6.12.* (semver) Unaffected: 6.18.11 , ≤ 6.18.* (semver) Unaffected: 6.19.1 , ≤ 6.19.* (semver) Unaffected: 7.0 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/wireless/realtek/rtl8xxxu/core.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "5d810ba377eddee95d30766d360a14efbb3d1872",
              "status": "affected",
              "version": "eef55f1545c92c7181d5083453dee1296298ad3e",
              "versionType": "git"
            },
            {
              "lessThan": "116f7bd8160c6b37d1c6939385abf90f6f6ed2f5",
              "status": "affected",
              "version": "eef55f1545c92c7181d5083453dee1296298ad3e",
              "versionType": "git"
            },
            {
              "lessThan": "9a0f3fa6ecd0c9c32dbc367a57482bbf7c7d25bf",
              "status": "affected",
              "version": "eef55f1545c92c7181d5083453dee1296298ad3e",
              "versionType": "git"
            },
            {
              "lessThan": "86c946bcc00f6390ef65e9614ae60a9377e454f8",
              "status": "affected",
              "version": "eef55f1545c92c7181d5083453dee1296298ad3e",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/wireless/realtek/rtl8xxxu/core.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.9"
            },
            {
              "lessThan": "6.9",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.72",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.11",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.19.*",
              "status": "unaffected",
              "version": "6.19.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.0",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.72",
                  "versionStartIncluding": "6.9",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.11",
                  "versionStartIncluding": "6.9",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.19.1",
                  "versionStartIncluding": "6.9",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.0",
                  "versionStartIncluding": "6.9",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: rtl8xxxu: fix slab-out-of-bounds in rtl8xxxu_sta_add\n\nThe driver does not set hw-\u003esta_data_size, which causes mac80211 to\nallocate insufficient space for driver private station data in\n__sta_info_alloc(). When rtl8xxxu_sta_add() accesses members of\nstruct rtl8xxxu_sta_info through sta-\u003edrv_priv, this results in a\nslab-out-of-bounds write.\n\nKASAN report on RISC-V (VisionFive 2) with RTL8192EU adapter:\n\n  BUG: KASAN: slab-out-of-bounds in rtl8xxxu_sta_add+0x31c/0x346\n  Write of size 8 at addr ffffffd6d3e9ae88 by task kworker/u16:0/12\n\nSet hw-\u003esta_data_size to sizeof(struct rtl8xxxu_sta_info) during\nprobe, similar to how hw-\u003evif_data_size is configured. This ensures\nmac80211 allocates sufficient space for the driver\u0027s per-station\nprivate data.\n\nTested on StarFive VisionFive 2 v1.2A board."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 8.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "scenarios": [
            {
              "lang": "en",
              "value": "AV:A - A nearby radio peer can trigger the vulnerable station transition through ordinary Wi-Fi authentication and association management frames sent to an rtl8xxxu-backed AP. Radio proximity makes this Adjacent rather than Network.\nAC:L - The out-of-bounds writes occur deterministically whenever a station transitions from authenticated to associated; no race or condition outside the attacker\u2019s control is required. Associations can be repeated using attacker-controlled MAC addresses.\nPR:N - The AP transitions a peer to associated before controlled-port authorization and WPA credential verification ([hostapd source](https://android.googlesource.com/platform/external/wpa_suppl icant_8/%2B/2907c8a9c2e7485086db5b9dc02fe96c5c76ffa8/src/ap/ieee802_ 11.c)). A nearby unauthenticated peer therefore needs no privileges.\nUI:N - An already-running AP processes authentication and association attempts automatically. No victim user must approve or open anything.\nS:U - Exploitation compromises the kernel and resources governed by that same host security authority. It does not inherently cross a VM, IOMMU, or comparable security boundary.\nC:H - The repeated heap out-of-bounds corruption can potentially be developed into kernel code execution and arbitrary memory disclosure. Applying the required higher-severity choice makes confidentiality High.\nI:H - The driver performs a confirmed eight-byte slab out-of-bounds write plus additional out-of-bounds byte writes, with subsequent RSSI-driven updates. This memory corruption can potentially corrupt heap state and hijack kernel control flow.\nA:H - The confirmed slab violation can produce an oops or panic, particularly with memory-safety instrumentation, and association attempts can be repeated remotely. Kernel memory corruption therefore has High availability impact."
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-05T12:12:34.848Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/5d810ba377eddee95d30766d360a14efbb3d1872"
        },
        {
          "url": "https://git.kernel.org/stable/c/116f7bd8160c6b37d1c6939385abf90f6f6ed2f5"
        },
        {
          "url": "https://git.kernel.org/stable/c/9a0f3fa6ecd0c9c32dbc367a57482bbf7c7d25bf"
        },
        {
          "url": "https://git.kernel.org/stable/c/86c946bcc00f6390ef65e9614ae60a9377e454f8"
        }
      ],
      "title": "wifi: rtl8xxxu: fix slab-out-of-bounds in rtl8xxxu_sta_add",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-71234",
    "datePublished": "2026-02-18T14:53:18.893Z",
    "dateReserved": "2026-02-18T14:25:13.845Z",
    "dateUpdated": "2026-08-05T12:12:34.848Z",
    "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.

Detection rules are retrieved from Rulezet.

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.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

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.