{
  "cveId": "CVE-2023-52505",
  "url": "https://patchblox.com/security/cve/CVE-2023-52505",
  "summary": "CVE-2023-52505 is fixed in linux on 1 platform, first by DEBIAN-CVE-2023-52505, released March 2, 2024. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "linux: In the Linux kernel, the following vulnerability has been resolved:  phy: lynx-28g: serialize concurrent phy_set_mode...",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  phy: lynx-28g: serialize concurrent phy_set_mode_ext() calls to shared registers  The protocol converter configuration registers PCC8, PCCC, PCCD (implemented by the driver), as well as others, control protocol converters from multiple lanes (each represented as a different struct phy). So, if there are simultaneous calls to phy_set_mode_ext() to lanes sharing the same PCC register (either for the \u0022old\u0022 or for the \u0022new\u0022 protocol), corruption of the values programmed to hardware is possible, because lynx_28g_rmw() has no locking.  Add a spinlock in the struct lynx_28g_priv shared by all lanes, and take the global spinlock from the phy_ops :: set_mode() implementation. There are no other callers which modify PCC registers.",
  "published": "2024-03-02T22:15:47Z",
  "severity": "medium",
  "cvss": 4.7,
  "cvssVector": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H",
  "epss": 0.00168,
  "epssPercentile": 0.06218,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "6.1.64-1",
      "fix": "DEBIAN-CVE-2023-52505",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2023-52505",
      "released": "2024-03-02T22:15:47Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "6.5.8-1",
      "fix": "DEBIAN-CVE-2023-52505",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2023-52505",
      "released": "2024-03-02T22:15:47Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "6.5.8-1",
      "fix": "DEBIAN-CVE-2023-52505",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2023-52505",
      "released": "2024-03-02T22:15:47Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T19:12:23Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}