vfio/xe: Reorganize the init to decouple migration from reset

{
  "id": "636abdeb685a96d61c4109c4b55a9495d680f9565c203bcff4e5d0f5121c8771",
  "url": "https://osv.dev/vulnerability/CVE-2026-31601",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "vfio/xe: Reorganize the init to decouple migration from reset",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: vfio/xe: Reorganize the init to decouple migration from reset Attempting to issue reset on VF devices that don't support migration leads to the following: BUG: unable to handle page fault for address: 00000000000011f8 #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD 0 P4D 0 Oops: Oops: 0000 [#1] SMP NOPTI CPU: 2 UID: 0 PID: 7443 Comm: xe_sriov_flr Tainted: G S U 7.0.0-rc1-lgci-xe-xe-4588-cec43d5c2696af219-nodebug+ #1 PREEMPT(lazy) Tainted: [S]=CPU_OUT_OF_SPEC, [U]=USER Hardware name: Intel Corporation Alder Lake Client Platform/AlderLake-P DDR4 RVP, BIOS RPLPFWI1.R00.4035.A00.2301200723 01/20/2023 RIP: 0010:xe_sriov_vfio_wait_flr_done+0xc/0x80 [xe] Code: ff c3 cc cc cc cc 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1f 44 00 00 55 48 89 e5 41 54 53 <83> bf f8 11 00 00 02 75 61 41 89 f4 85 f6 74 52 48 8b 47 08 48 89 RSP: 0018:ffffc9000f7c39b8 EFLAGS: 00010202 RAX: ffffffffa04d8660 RBX: ffff88813e3e4000 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc9000f7c39c8 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: ffff888101a48800 R13: ffff88813e3e4150 R14: ffff888130d0d008 R15: ffff88813e3e40d0 FS: 00007877d3d0d940(0000) GS:ffff88890b6d3000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000000011f8 CR3: 00000001",
    "evidence": "osv:CVE-2026-31601",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "6.19.14",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "7.0.1",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "CVE-2026-31601",
      "aliases": [
        "CVE-2026-31601"
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
                {
                  "introduced": "1f5556ec8b9efbb784aeb3536e147182dee73d0f"
                },
                {
                  "fixed": "8fa4113fc65b8b29a30fbbca5fd82221dc6e146e"
                },
                {
                  "fixed": "73e53ff144a538f1843b3dea1e2740a755031cdc"
                },
                {
                  "fixed": "1b81ed612e12ea9df8c5cb6f0ddd4419fd0b8ac8"
                }
              ]
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-31601.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.19.0"
                },
                {
                  "fixed": "6.19.14"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.20.0"
                },
                {
                  "fixed": "7.0.1"
                }
              ]
            }
          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-31601.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:25.904409753Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/1b81ed612e12ea9df8c5cb6f0ddd4419fd0b8ac8",
        "https://git.kernel.org/stable/c/73e53ff144a538f1843b3dea1e2740a755031cdc",
        "https://git.kernel.org/stable/c/8fa4113fc65b8b29a30fbbca5fd82221dc6e146e",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/31xxx/CVE-2026-31601.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-31601",
        "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
      ],
      "provider_metadata": {
        "cna_assigner": "Linux",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/31xxx/CVE-2026-31601.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-31601",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 492231,
  "published_at": "2026-04-24T14:42:25.287+00:00"
}