FKIE_CVE-2023-54300

Vulnerability from fkie_nvd - Published: 2025-12-30 13:16 - Updated: 2025-12-30 13:16
Severity ?
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.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/0bc12e41af4e3ae1f0efecc377f0514459df0707
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/250efb4d3f5b32a115ea6bf25437ba44a1b3c04f
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/28259ce4f1f1f9ab37fa817756c89098213d2fc0
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/75acec91aeaa07375cd5f418069e61b16d39bbad
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/8ed572e52714593b209e3aa352406aff84481179
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/90e3c10177573b8662ac9858abd9bf731d5d98e0
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/ad5425e70789c29b93acafb5bb4629e4eb908296
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/d1c2ff2bd84c3692c9df267a2b991ce92bfca8ef
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/f24292e827088bba8de7158501ac25a59b064953
Impacted products
Vendor Product Version
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{
  "cveTags": [],
  "descriptions": [
    {
      "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."
    }
  ],
  "id": "CVE-2023-54300",
  "lastModified": "2025-12-30T13:16:19.120",
  "metrics": {},
  "published": "2025-12-30T13:16:19.120",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/0bc12e41af4e3ae1f0efecc377f0514459df0707"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/250efb4d3f5b32a115ea6bf25437ba44a1b3c04f"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/28259ce4f1f1f9ab37fa817756c89098213d2fc0"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/75acec91aeaa07375cd5f418069e61b16d39bbad"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/8ed572e52714593b209e3aa352406aff84481179"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/90e3c10177573b8662ac9858abd9bf731d5d98e0"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/ad5425e70789c29b93acafb5bb4629e4eb908296"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/d1c2ff2bd84c3692c9df267a2b991ce92bfca8ef"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/f24292e827088bba8de7158501ac25a59b064953"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Received"
}


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