Vulnerability-Lookup

FKIE_CVE-2026-31601

Vulnerability from fkie_nvd - Published: 2026-04-24 15:16 - Updated: 2026-04-24 17:51

Severity ?

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: 000000015a762000 CR4: 0000000000f52ef0 PKRU: 55555554 Call Trace: <TASK> xe_vfio_pci_reset_done+0x49/0x120 [xe_vfio_pci] pci_dev_restore+0x3b/0x80 pci_reset_function+0x109/0x140 reset_store+0x5c/0xb0 dev_attr_store+0x17/0x40 sysfs_kf_write+0x72/0x90 kernfs_fop_write_iter+0x161/0x1f0 vfs_write+0x261/0x440 ksys_write+0x69/0xf0 __x64_sys_write+0x19/0x30 x64_sys_call+0x259/0x26e0 do_syscall_64+0xcb/0x1500 ? __fput+0x1a2/0x2d0 ? fput_close_sync+0x3d/0xa0 ? __x64_sys_close+0x3e/0x90 ? x64_sys_call+0x1b7c/0x26e0 ? do_syscall_64+0x109/0x1500 ? __task_pid_nr_ns+0x68/0x100 ? __do_sys_getpid+0x1d/0x30 ? x64_sys_call+0x10b5/0x26e0 ? do_syscall_64+0x109/0x1500 ? putname+0x41/0x90 ? do_faccessat+0x1e8/0x300 ? __x64_sys_access+0x1c/0x30 ? x64_sys_call+0x1822/0x26e0 ? do_syscall_64+0x109/0x1500 ? tick_program_event+0x43/0xa0 ? hrtimer_interrupt+0x126/0x260 ? irqentry_exit+0xb2/0x710 entry_SYSCALL_64_after_hwframe+0x76/0x7e RIP: 0033:0x7877d5f1c5a4 Code: c7 00 16 00 00 00 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 f3 0f 1e fa 80 3d a5 ea 0e 00 00 74 13 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 54 c3 0f 1f 00 55 48 89 e5 48 83 ec 20 48 89 RSP: 002b:00007fff48e5f908 EFLAGS: 00000202 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007877d5f1c5a4 RDX: 0000000000000001 RSI: 00007877d621b0c9 RDI: 0000000000000009 RBP: 0000000000000001 R08: 00005fb49113b010 R09: 0000000000000007 R10: 0000000000000000 R11: 0000000000000202 R12: 00007877d621b0c9 R13: 0000000000000009 R14: 00007fff48e5fac0 R15: 00007fff48e5fac0 </TASK> This is caused by the fact that some of the xe_vfio_pci_core_device members needed for handling reset are only initialized as part of migration init. Fix the problem by reorganizing the code to decouple VF init from migration init.

References

	URL	Tags
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/73e53ff144a538f1843b3dea1e2740a755031cdc
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/8fa4113fc65b8b29a30fbbca5fd82221dc6e146e

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nvfio/xe: Reorganize the init to decouple migration from reset\n\nAttempting to issue reset on VF devices that don\u0027t support migration\nleads to the following:\n\n  BUG: unable to handle page fault for address: 00000000000011f8\n  #PF: supervisor read access in kernel mode\n  #PF: error_code(0x0000) - not-present page\n  PGD 0 P4D 0\n  Oops: Oops: 0000 [#1] SMP NOPTI\n  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)\n  Tainted: [S]=CPU_OUT_OF_SPEC, [U]=USER\n  Hardware name: Intel Corporation Alder Lake Client Platform/AlderLake-P DDR4 RVP, BIOS RPLPFWI1.R00.4035.A00.2301200723 01/20/2023\n  RIP: 0010:xe_sriov_vfio_wait_flr_done+0xc/0x80 [xe]\n  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 \u003c83\u003e bf f8 11 00 00 02 75 61 41 89 f4 85 f6 74 52 48 8b 47 08 48 89\n  RSP: 0018:ffffc9000f7c39b8 EFLAGS: 00010202\n  RAX: ffffffffa04d8660 RBX: ffff88813e3e4000 RCX: 0000000000000000\n  RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000\n  RBP: ffffc9000f7c39c8 R08: 0000000000000000 R09: 0000000000000000\n  R10: 0000000000000000 R11: 0000000000000000 R12: ffff888101a48800\n  R13: ffff88813e3e4150 R14: ffff888130d0d008 R15: ffff88813e3e40d0\n  FS:  00007877d3d0d940(0000) GS:ffff88890b6d3000(0000) knlGS:0000000000000000\n  CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n  CR2: 00000000000011f8 CR3: 000000015a762000 CR4: 0000000000f52ef0\n  PKRU: 55555554\n  Call Trace:\n   \u003cTASK\u003e\n   xe_vfio_pci_reset_done+0x49/0x120 [xe_vfio_pci]\n   pci_dev_restore+0x3b/0x80\n   pci_reset_function+0x109/0x140\n   reset_store+0x5c/0xb0\n   dev_attr_store+0x17/0x40\n   sysfs_kf_write+0x72/0x90\n   kernfs_fop_write_iter+0x161/0x1f0\n   vfs_write+0x261/0x440\n   ksys_write+0x69/0xf0\n   __x64_sys_write+0x19/0x30\n   x64_sys_call+0x259/0x26e0\n   do_syscall_64+0xcb/0x1500\n   ? __fput+0x1a2/0x2d0\n   ? fput_close_sync+0x3d/0xa0\n   ? __x64_sys_close+0x3e/0x90\n   ? x64_sys_call+0x1b7c/0x26e0\n   ? do_syscall_64+0x109/0x1500\n   ? __task_pid_nr_ns+0x68/0x100\n   ? __do_sys_getpid+0x1d/0x30\n   ? x64_sys_call+0x10b5/0x26e0\n   ? do_syscall_64+0x109/0x1500\n   ? putname+0x41/0x90\n   ? do_faccessat+0x1e8/0x300\n   ? __x64_sys_access+0x1c/0x30\n   ? x64_sys_call+0x1822/0x26e0\n   ? do_syscall_64+0x109/0x1500\n   ? tick_program_event+0x43/0xa0\n   ? hrtimer_interrupt+0x126/0x260\n   ? irqentry_exit+0xb2/0x710\n   entry_SYSCALL_64_after_hwframe+0x76/0x7e\n  RIP: 0033:0x7877d5f1c5a4\n  Code: c7 00 16 00 00 00 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 f3 0f 1e fa 80 3d a5 ea 0e 00 00 74 13 b8 01 00 00 00 0f 05 \u003c48\u003e 3d 00 f0 ff ff 77 54 c3 0f 1f 00 55 48 89 e5 48 83 ec 20 48 89\n  RSP: 002b:00007fff48e5f908 EFLAGS: 00000202 ORIG_RAX: 0000000000000001\n  RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007877d5f1c5a4\n  RDX: 0000000000000001 RSI: 00007877d621b0c9 RDI: 0000000000000009\n  RBP: 0000000000000001 R08: 00005fb49113b010 R09: 0000000000000007\n  R10: 0000000000000000 R11: 0000000000000202 R12: 00007877d621b0c9\n  R13: 0000000000000009 R14: 00007fff48e5fac0 R15: 00007fff48e5fac0\n   \u003c/TASK\u003e\n\nThis is caused by the fact that some of the xe_vfio_pci_core_device\nmembers needed for handling reset are only initialized as part of\nmigration init.\n\nFix the problem by reorganizing the code to decouple VF init from\nmigration init."
    }
  ],
  "id": "CVE-2026-31601",
  "lastModified": "2026-04-24T17:51:40.810",
  "metrics": {},
  "published": "2026-04-24T15:16:39.090",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/73e53ff144a538f1843b3dea1e2740a755031cdc"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/8fa4113fc65b8b29a30fbbca5fd82221dc6e146e"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Awaiting Analysis"
}

CVE-2026-31601 (GCVE-0-2026-31601)

Vulnerability from cvelistv5 – Published: 2026-04-24 14:42 – Updated: 2026-04-24 14:42

Title

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

Summary

Severity ?

No CVSS data available.

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/8fa4113fc65b8b29a…
	https://git.kernel.org/stable/c/73e53ff144a538f18…

Impacted products

Vendor

Product

Version

Linux

Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 8fa4113fc65b8b29a30fbbca5fd82221dc6e146e (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 73e53ff144a538f1843b3dea1e2740a755031cdc (git)

Linux

Unaffected: 6.19.14 , ≤ 6.19.* (semver)
Unaffected: 7.0.1 , ≤ 7.0.* (semver)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/vfio/pci/xe/main.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "8fa4113fc65b8b29a30fbbca5fd82221dc6e146e",
              "status": "affected",
              "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
              "versionType": "git"
            },
            {
              "lessThan": "73e53ff144a538f1843b3dea1e2740a755031cdc",
              "status": "affected",
              "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/vfio/pci/xe/main.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThanOrEqual": "6.19.*",
              "status": "unaffected",
              "version": "6.19.14",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.0.*",
              "status": "unaffected",
              "version": "7.0.1",
              "versionType": "semver"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.19.14",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.0.1",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nvfio/xe: Reorganize the init to decouple migration from reset\n\nAttempting to issue reset on VF devices that don\u0027t support migration\nleads to the following:\n\n  BUG: unable to handle page fault for address: 00000000000011f8\n  #PF: supervisor read access in kernel mode\n  #PF: error_code(0x0000) - not-present page\n  PGD 0 P4D 0\n  Oops: Oops: 0000 [#1] SMP NOPTI\n  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)\n  Tainted: [S]=CPU_OUT_OF_SPEC, [U]=USER\n  Hardware name: Intel Corporation Alder Lake Client Platform/AlderLake-P DDR4 RVP, BIOS RPLPFWI1.R00.4035.A00.2301200723 01/20/2023\n  RIP: 0010:xe_sriov_vfio_wait_flr_done+0xc/0x80 [xe]\n  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 \u003c83\u003e bf f8 11 00 00 02 75 61 41 89 f4 85 f6 74 52 48 8b 47 08 48 89\n  RSP: 0018:ffffc9000f7c39b8 EFLAGS: 00010202\n  RAX: ffffffffa04d8660 RBX: ffff88813e3e4000 RCX: 0000000000000000\n  RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000\n  RBP: ffffc9000f7c39c8 R08: 0000000000000000 R09: 0000000000000000\n  R10: 0000000000000000 R11: 0000000000000000 R12: ffff888101a48800\n  R13: ffff88813e3e4150 R14: ffff888130d0d008 R15: ffff88813e3e40d0\n  FS:  00007877d3d0d940(0000) GS:ffff88890b6d3000(0000) knlGS:0000000000000000\n  CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n  CR2: 00000000000011f8 CR3: 000000015a762000 CR4: 0000000000f52ef0\n  PKRU: 55555554\n  Call Trace:\n   \u003cTASK\u003e\n   xe_vfio_pci_reset_done+0x49/0x120 [xe_vfio_pci]\n   pci_dev_restore+0x3b/0x80\n   pci_reset_function+0x109/0x140\n   reset_store+0x5c/0xb0\n   dev_attr_store+0x17/0x40\n   sysfs_kf_write+0x72/0x90\n   kernfs_fop_write_iter+0x161/0x1f0\n   vfs_write+0x261/0x440\n   ksys_write+0x69/0xf0\n   __x64_sys_write+0x19/0x30\n   x64_sys_call+0x259/0x26e0\n   do_syscall_64+0xcb/0x1500\n   ? __fput+0x1a2/0x2d0\n   ? fput_close_sync+0x3d/0xa0\n   ? __x64_sys_close+0x3e/0x90\n   ? x64_sys_call+0x1b7c/0x26e0\n   ? do_syscall_64+0x109/0x1500\n   ? __task_pid_nr_ns+0x68/0x100\n   ? __do_sys_getpid+0x1d/0x30\n   ? x64_sys_call+0x10b5/0x26e0\n   ? do_syscall_64+0x109/0x1500\n   ? putname+0x41/0x90\n   ? do_faccessat+0x1e8/0x300\n   ? __x64_sys_access+0x1c/0x30\n   ? x64_sys_call+0x1822/0x26e0\n   ? do_syscall_64+0x109/0x1500\n   ? tick_program_event+0x43/0xa0\n   ? hrtimer_interrupt+0x126/0x260\n   ? irqentry_exit+0xb2/0x710\n   entry_SYSCALL_64_after_hwframe+0x76/0x7e\n  RIP: 0033:0x7877d5f1c5a4\n  Code: c7 00 16 00 00 00 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 f3 0f 1e fa 80 3d a5 ea 0e 00 00 74 13 b8 01 00 00 00 0f 05 \u003c48\u003e 3d 00 f0 ff ff 77 54 c3 0f 1f 00 55 48 89 e5 48 83 ec 20 48 89\n  RSP: 002b:00007fff48e5f908 EFLAGS: 00000202 ORIG_RAX: 0000000000000001\n  RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007877d5f1c5a4\n  RDX: 0000000000000001 RSI: 00007877d621b0c9 RDI: 0000000000000009\n  RBP: 0000000000000001 R08: 00005fb49113b010 R09: 0000000000000007\n  R10: 0000000000000000 R11: 0000000000000202 R12: 00007877d621b0c9\n  R13: 0000000000000009 R14: 00007fff48e5fac0 R15: 00007fff48e5fac0\n   \u003c/TASK\u003e\n\nThis is caused by the fact that some of the xe_vfio_pci_core_device\nmembers needed for handling reset are only initialized as part of\nmigration init.\n\nFix the problem by reorganizing the code to decouple VF init from\nmigration init."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-04-24T14:42:25.287Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/8fa4113fc65b8b29a30fbbca5fd82221dc6e146e"
        },
        {
          "url": "https://git.kernel.org/stable/c/73e53ff144a538f1843b3dea1e2740a755031cdc"
        }
      ],
      "title": "vfio/xe: Reorganize the init to decouple migration from reset",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-31601",
    "datePublished": "2026-04-24T14:42:25.287Z",
    "dateReserved": "2026-03-09T15:48:24.121Z",
    "dateUpdated": "2026-04-24T14:42:25.287Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

FKIE_CVE-2026-31601

CVE-2026-31601 (GCVE-0-2026-31601)

Tags

Sightings

Nomenclature