CVE-2023-54300

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.

CVSS

No CVSS.

References

Link	Resource
https://git.kernel.org/stable/c/0bc12e41af4e3ae1f0efecc377f0514459df0707
https://git.kernel.org/stable/c/250efb4d3f5b32a115ea6bf25437ba44a1b3c04f
https://git.kernel.org/stable/c/28259ce4f1f1f9ab37fa817756c89098213d2fc0
https://git.kernel.org/stable/c/75acec91aeaa07375cd5f418069e61b16d39bbad
https://git.kernel.org/stable/c/8ed572e52714593b209e3aa352406aff84481179
https://git.kernel.org/stable/c/90e3c10177573b8662ac9858abd9bf731d5d98e0
https://git.kernel.org/stable/c/ad5425e70789c29b93acafb5bb4629e4eb908296
https://git.kernel.org/stable/c/d1c2ff2bd84c3692c9df267a2b991ce92bfca8ef
https://git.kernel.org/stable/c/f24292e827088bba8de7158501ac25a59b064953

Configurations

No configuration.

History

No history.

Information

Published : 2025-12-30 13:16

Updated : 2026-06-17 06:47

NVD link : CVE-2023-54300

Mitre link : CVE-2023-54300

CVE.ORG link : CVE-2023-54300

JSON object : View

Products Affected

No product.

CWE

No CWE.

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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."}, {"lang": "es", "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 ('wifi: ath9k: evitar lectura de memoria no inicializada en ath9k_htc_rx_msg()'), 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."}], "lastModified": "2026-06-17T06:47:11.053", "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}