{
  "cveId": "CVE-2022-49501",
  "url": "https://patchblox.com/security/cve/CVE-2022-49501",
  "summary": "CVE-2022-49501 is fixed in linux on 1 platform, first by DEBIAN-CVE-2022-49501, released February 26, 2025. It is not reported as exploited. Patch Radar priority: High.",
  "title": "linux: In the Linux kernel, the following vulnerability has been resolved:  usbnet: Run unregister_netdev() before unbind()...",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  usbnet: Run unregister_netdev() before unbind() again  Commit 2c9d6c2b871d (\u0022usbnet: run unbind() before unregister_netdev()\u0022) sought to fix a use-after-free on disconnect of USB Ethernet adapters.  It turns out that a different fix is necessary to address the issue: https://lore.kernel.org/netdev/18b3541e5372bc9b9fc733d422f4e698c089077c.1650177997.git.lukas@wunner.de/  So the commit was not necessary.  The commit made binding and unbinding of USB Ethernet asymmetrical: Before, usbnet_probe() first invoked the -\u003Ebind() callback and then register_netdev().  usbnet_disconnect() mirrored that by first invoking unregister_netdev() and then -\u003Eunbind().  Since the commit, the order in usbnet_disconnect() is reversed and no longer mirrors usbnet_probe().  One consequence is that a PHY disconnected (and stopped) in -\u003Eunbind() is afterwards stopped once more by unregister_netdev() as it closes the netdev before unregistering.  That necessitates a contortion in -\u003Estop() because the PHY may only be stopped if it hasn\u0027t already been disconnected.  Reverting the commit allows making the call to phy_stop() unconditional in -\u003Estop().",
  "published": "2025-02-26T07:01:26Z",
  "severity": "high",
  "cvss": 7.8,
  "cvssVector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
  "epss": 0.00268,
  "epssPercentile": 0.18999,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "5.18.5-1",
      "fix": "DEBIAN-CVE-2022-49501",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2022-49501",
      "released": "2025-02-26T07:01:26Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "5.18.5-1",
      "fix": "DEBIAN-CVE-2022-49501",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2022-49501",
      "released": "2025-02-26T07:01:26Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "5.18.5-1",
      "fix": "DEBIAN-CVE-2022-49501",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2022-49501",
      "released": "2025-02-26T07:01:26Z"
    }
  ],
  "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"
  }
}