{
  "cveId": "CVE-2026-43173",
  "url": "https://patchblox.com/security/cve/CVE-2026-43173",
  "summary": "CVE-2026-43173 is fixed in linux on 1 platform, first by DEBIAN-CVE-2026-43173, released May 15, 2026. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "linux: In the Linux kernel, the following vulnerability has been resolved:  net: ethernet: xscale: Check for PTP support pro...",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  net: ethernet: xscale: Check for PTP support properly  In ixp4xx_get_ts_info() ixp46x_ptp_find() is called unconditionally despite this feature only existing on ixp46x, leading to the following splat from tcpdump:  root@OpenWrt:~# tcpdump -vv -X -i eth0 (...) Unable to handle kernel NULL pointer dereference at virtual address   00000238 when read (...) Call trace:  ptp_clock_index from ixp46x_ptp_find\u002B0x1c/0x38  ixp46x_ptp_find from ixp4xx_get_ts_info\u002B0x4c/0x64  ixp4xx_get_ts_info from __ethtool_get_ts_info\u002B0x90/0x108  __ethtool_get_ts_info from __dev_ethtool\u002B0xa00/0x2648  __dev_ethtool from dev_ethtool\u002B0x160/0x234  dev_ethtool from dev_ioctl\u002B0x2cc/0x460  dev_ioctl from sock_ioctl\u002B0x1ec/0x524  sock_ioctl from sys_ioctl\u002B0x51c/0xa94  sys_ioctl from ret_fast_syscall\u002B0x0/0x44  (...) Segmentation fault  Check for ixp46x in ixp46x_ptp_find() before trying to set up PTP to avoid this.  To avoid altering the returned error code from ixp4xx_hwtstamp_set() which before this patch was -EOPNOTSUPP, we return -EOPNOTSUPP from ixp4xx_hwtstamp_set() if ixp46x_ptp_find() fails no matter the error code. The helper function ixp46x_ptp_find() helper returns -ENODEV.",
  "published": "2026-05-06T12:16:35Z",
  "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": 0.00122,
  "epssPercentile": 0.01984,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "6.12.85-1",
      "fix": "DEBIAN-CVE-2026-43173",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-43173",
      "released": "2026-05-15T16:01:09Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "6.19.6-1",
      "fix": "DEBIAN-CVE-2026-43173",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-43173",
      "released": "2026-05-15T16:01:09Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-09T01:18:40Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}