{
  "cveId": "CVE-2023-53199",
  "url": "https://patchblox.com/security/cve/CVE-2023-53199",
  "summary": "CVE-2023-53199 is fixed in linux on 1 platform, first by DEBIAN-CVE-2023-53199, released September 15, 2025. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "linux: In the Linux kernel, the following vulnerability has been resolved:  wifi: ath9k: hif_usb: clean up skbs if ath9k_hif...",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  wifi: ath9k: hif_usb: clean up skbs if ath9k_hif_usb_rx_stream() fails  Syzkaller detected a memory leak of skbs in ath9k_hif_usb_rx_stream(). While processing skbs in ath9k_hif_usb_rx_stream(), the already allocated skbs in skb_pool are not freed if ath9k_hif_usb_rx_stream() fails. If we have an incorrect pkt_len or pkt_tag, the input skb is considered invalid and dropped. All the associated packets already in skb_pool should be dropped and freed. Added a comment describing this issue.  The patch also makes remain_skb NULL after being processed so that it cannot be referenced after potential free. The initialization of hif_dev fields which are associated with remain_skb (rx_remain_len, rx_transfer_len and rx_pad_len) is moved after a new remain_skb is allocated.  Found by Linux Verification Center (linuxtesting.org) with Syzkaller.",
  "published": "2025-09-15T15:15:46Z",
  "severity": "medium",
  "cvss": 5.5,
  "cvssVector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
  "epss": 0.0016,
  "epssPercentile": 0.05156,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "6.1.20-1",
      "fix": "DEBIAN-CVE-2023-53199",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2023-53199",
      "released": "2025-09-15T15:15:46Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "6.1.20-1",
      "fix": "DEBIAN-CVE-2023-53199",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2023-53199",
      "released": "2025-09-15T15:15:46Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "6.1.20-1",
      "fix": "DEBIAN-CVE-2023-53199",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2023-53199",
      "released": "2025-09-15T15:15:46Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T06:59:42Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}