GHSA-FV8X-X8X6-CWCR

Vulnerability from github – Published: 2026-08-10 15:33 – Updated: 2026-08-10 15:33
VLAI
Details

In the Linux kernel, the following vulnerability has been resolved:

ice: fix PTP Call Trace during PTP release

If a PF reset occurs when the PTP state is ICE_PTP_UNINIT, then ice_ptp_rebuild() will update the state to ICE_PTP_ERROR. This will result in the following PTP release call trace during driver unload:

kernel BUG at lib/list_debug.c:52!
ice_ptp_release+0x332/0x3c0 [ice]
ice_deinit_features.part.0+0x10e/0x120 [ice]
ice_remove+0x100/0x220 [ice]

This was observed when passing PF1 through to a VM. ice_ptp_init() fails because ctrl_pf is NULL and sets the state to ICE_PTP_UNINIT.

Fix by detecting the ICE_PTP_UNINIT state in ice_ptp_rebuild() and returning without error, preventing the invalid state transition to ICE_PTP_ERROR. The only valid path to ICE_PTP_ERROR is from ICE_PTP_RESETTING after a failed rebuild.

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{
  "affected": [],
  "aliases": [
    "CVE-2026-68133"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-08-10T13:19:58Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nice: fix PTP Call Trace during PTP release\n\nIf a PF reset occurs when the PTP state is ICE_PTP_UNINIT, then\nice_ptp_rebuild() will update the state to ICE_PTP_ERROR. This will\nresult in the following PTP release call trace during driver unload:\n\n    kernel BUG at lib/list_debug.c:52!\n    ice_ptp_release+0x332/0x3c0 [ice]\n    ice_deinit_features.part.0+0x10e/0x120 [ice]\n    ice_remove+0x100/0x220 [ice]\n\nThis was observed when passing PF1 through to a VM. ice_ptp_init()\nfails because ctrl_pf is NULL and sets the state to ICE_PTP_UNINIT.\n\nFix by detecting the ICE_PTP_UNINIT state in ice_ptp_rebuild() and\nreturning without error, preventing the invalid state transition to\nICE_PTP_ERROR. The only valid path to ICE_PTP_ERROR is from\nICE_PTP_RESETTING after a failed rebuild.",
  "id": "GHSA-fv8x-x8x6-cwcr",
  "modified": "2026-08-10T15:33:37Z",
  "published": "2026-08-10T15:33:37Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-68133"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/14fceda28069fdbe1bb49cdb6e1774892b583348"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7d517b255f669cedd09830214d55f2f413b34481"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e4406cbdd915f702d2ed9ee8b30683a16b06c6ac"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f6a7e00b81e35ef1325234925f2fe1e53b466f92"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}



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