net: usb: ax88179_178a: Fix out-of-bounds accesses in RX fixup

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  "url": "https://osv.dev/vulnerability/CVE-2022-48805",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "net: usb: ax88179_178a: Fix out-of-bounds accesses in RX fixup",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: net: usb: ax88179_178a: Fix out-of-bounds accesses in RX fixup ax88179_rx_fixup() contains several out-of-bounds accesses that can be triggered by a malicious (or defective) USB device, in particular: - The metadata array (hdr_off..hdr_off+2*pkt_cnt) can be out of bounds, causing OOB reads and (on big-endian systems) OOB endianness flips. - A packet can overlap the metadata array, causing a later OOB endianness flip to corrupt data used by a cloned SKB that has already been handed off into the network stack. - A packet SKB can be constructed whose tail is far beyond its end, causing out-of-bounds heap data to be considered part of the SKB's data. I have tested that this can be used by a malicious USB device to send a bogus ICMPv6 Echo Request and receive an ICMPv6 Echo Reply in response that contains random kernel heap data. It's probably also possible to get OOB writes from this on a little-endian system somehow - maybe by triggering skb_cow() via IP options processing -, but I haven't tested that.",
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    "severity": "unknown",
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      "modified": "2026-10-28T02:30:30.295186087Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/1668781ed24da43498799aa4f65714a7de201930",
        "https://git.kernel.org/stable/c/57bc3d3ae8c14df3ceb4e17d26ddf9eeab304581",
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        "https://git.kernel.org/stable/c/ffd0393adcdcefab7e131488e10dcfde5e02d6eb",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/48xxx/CVE-2022-48805.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2022-48805",
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    "security_relevant": true,
    "severity_evidence": null
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  "source_id": "core-osv",
  "document_id": 496974,
  "published_at": "2024-07-16T11:43:56.95+00:00"
}