CVE-2023-54300 (GCVE-0-2023-54300)

Vulnerability from cvelistv5 – Published: 2025-12-30 12:23 – Updated: 2026-05-11 19:59
VLAI
Title
wifi: ath9k: avoid referencing uninit memory in ath9k_wmi_ctrl_rx
Summary
In the Linux kernel, the following vulnerability has been resolved: wifi: ath9k: avoid referencing uninit memory in ath9k_wmi_ctrl_rx For the reasons also described in commit b383e8abed41 ("wifi: ath9k: avoid uninit memory read in ath9k_htc_rx_msg()"), ath9k_htc_rx_msg() should validate pkt_len before accessing the SKB. For example, the obtained SKB may have been badly constructed with pkt_len = 8. In this case, the SKB can only contain a valid htc_frame_hdr but after being processed in ath9k_htc_rx_msg() and passed to ath9k_wmi_ctrl_rx() endpoint RX handler, it is expected to have a WMI command header which should be located inside its data payload. Implement sanity checking inside ath9k_wmi_ctrl_rx(). Otherwise, uninit memory can be referenced. Tested on Qualcomm Atheros Communications AR9271 802.11n . Found by Linux Verification Center (linuxtesting.org) with Syzkaller.
Severity
No CVSS data available.
Assigner
Linux CNA under the mitre root
CNA scorecard D 53/100 over 6641 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: fb9987d0f748c983bb795a86f47522313f701a08 , < 0bc12e41af4e3ae1f0efecc377f0514459df0707 (git)
Affected: fb9987d0f748c983bb795a86f47522313f701a08 , < 28259ce4f1f1f9ab37fa817756c89098213d2fc0 (git)
Affected: fb9987d0f748c983bb795a86f47522313f701a08 , < 90e3c10177573b8662ac9858abd9bf731d5d98e0 (git)
Affected: fb9987d0f748c983bb795a86f47522313f701a08 , < 250efb4d3f5b32a115ea6bf25437ba44a1b3c04f (git)
Affected: fb9987d0f748c983bb795a86f47522313f701a08 , < ad5425e70789c29b93acafb5bb4629e4eb908296 (git)
Affected: fb9987d0f748c983bb795a86f47522313f701a08 , < d1c2ff2bd84c3692c9df267a2b991ce92bfca8ef (git)
Affected: fb9987d0f748c983bb795a86f47522313f701a08 , < 8ed572e52714593b209e3aa352406aff84481179 (git)
Affected: fb9987d0f748c983bb795a86f47522313f701a08 , < 75acec91aeaa07375cd5f418069e61b16d39bbad (git)
Affected: fb9987d0f748c983bb795a86f47522313f701a08 , < f24292e827088bba8de7158501ac25a59b064953 (git)
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Linux Linux Affected: 2.6.35
Unaffected: 0 , < 2.6.35 (semver)
Unaffected: 4.14.322 , ≤ 4.14.* (semver)
Unaffected: 4.19.291 , ≤ 4.19.* (semver)
Unaffected: 5.4.251 , ≤ 5.4.* (semver)
Unaffected: 5.10.188 , ≤ 5.10.* (semver)
Unaffected: 5.15.121 , ≤ 5.15.* (semver)
Unaffected: 6.1.39 , ≤ 6.1.* (semver)
Unaffected: 6.3.13 , ≤ 6.3.* (semver)
Unaffected: 6.4.4 , ≤ 6.4.* (semver)
Unaffected: 6.5 , ≤ * (original_commit_for_fix)
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          "url": "https://git.kernel.org/stable/c/f24292e827088bba8de7158501ac25a59b064953"
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      "title": "wifi: ath9k: avoid referencing uninit memory in ath9k_wmi_ctrl_rx",
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            "lang": "en",
            "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: ath9k: avoid referencing uninit memory in ath9k_wmi_ctrl_rx\n\nFor the reasons also described in commit b383e8abed41 (\"wifi: ath9k: avoid\nuninit memory read in ath9k_htc_rx_msg()\"), ath9k_htc_rx_msg() should\nvalidate pkt_len before accessing the SKB.\n\nFor example, the obtained SKB may have been badly constructed with\npkt_len = 8. In this case, the SKB can only contain a valid htc_frame_hdr\nbut after being processed in ath9k_htc_rx_msg() and passed to\nath9k_wmi_ctrl_rx() endpoint RX handler, it is expected to have a WMI\ncommand header which should be located inside its data payload.\n\nImplement sanity checking inside ath9k_wmi_ctrl_rx(). Otherwise, uninit\nmemory can be referenced.\n\nTested on Qualcomm Atheros Communications AR9271 802.11n .\n\nFound by Linux Verification Center (linuxtesting.org) with Syzkaller."
          },
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            "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nwifi: ath9k: evitar referenciar memoria no inicializada en ath9k_wmi_ctrl_rx\n\nPor las razones tambi\u00e9n descritas en el commit b383e8abed41 (\u0027wifi: ath9k: evitar lectura de memoria no inicializada en ath9k_htc_rx_msg()\u0027), ath9k_htc_rx_msg() deber\u00eda validar pkt_len antes de acceder al SKB.\n\nPor ejemplo, el SKB obtenido puede haber sido mal construido con pkt_len = 8. En este caso, el SKB solo puede contener un htc_frame_hdr v\u00e1lido, pero despu\u00e9s de ser procesado en ath9k_htc_rx_msg() y pasado al manejador RX del endpoint ath9k_wmi_ctrl_rx(), se espera que tenga una cabecera de comando WMI que deber\u00eda estar ubicada dentro de su carga \u00fatil de datos.\n\nImplementar comprobaci\u00f3n de cordura dentro de ath9k_wmi_ctrl_rx(). De lo contrario, se puede referenciar memoria no inicializada.\n\nProbado en Qualcomm Atheros Communications AR9271 802.11n.\n\nEncontrado por Linux Verification Center (linuxtesting.org) con Syzkaller."
          }
        ],
        "id": "CVE-2023-54300",
        "lastModified": "2026-06-17T06:47:11.053",
        "metrics": {},
        "published": "2025-12-30T13:16:19.120",
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            "url": "https://git.kernel.org/stable/c/d1c2ff2bd84c3692c9df267a2b991ce92bfca8ef"
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          }
        ],
        "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "vulnStatus": "Deferred"
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-11-07T04:35:05+00:00",
      "cve": "CVE-2023-54300",
      "id": "CVE-2023-54300",
      "initial_release_date": "2023-01-01T00:00:00+00:00",
      "product_status:fixed": "120",
      "product_status:known_affected": "167",
      "product_status:known_not_affected": "1",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: wifi: ath9k: avoid referencing uninit memory in ath9k_wmi_ctrl_rx",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2023/cve-2023-54300.json",
      "version": "3"
    }
  }
}



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Taxonomy of the tags.




Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.

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.
Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

JSON
How durations are calculated

Following the VTEM framework (Black Hat USA 2015), time to patch starts when the vendor or a coordinator was informed, total time to patch at discovery, and disclosure to patch at public disclosure; vendor response time runs from the report to its acknowledgement. Time to exploit and time unpatched start at the earliest discovery or report, falling back to public disclosure. Unpatched time ends at the first recorded patch, or the calculation time when no patch is recorded. Exploitation to patch shows the interval between those two events; a published proof of concept is a public exploit, not exploitation.

Each result shows its source dates. A negative interval means the end event came first; when date-only inputs leave the order open, the result says so. Date-only inputs are approximate. The earliest evidence wins: KEV report dates and sightings are labelled as such. Records describing another vulnerability are listed but never calculated from, and a PoC alone does not establish exploitation. Missing patch evidence does not prove that no patch exists. Filters below change the event list only.

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    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.