fkie_cve-2025-38355
Vulnerability from fkie_nvd
Published
2025-07-25 13:15
Modified
2025-11-18 12:50
Severity ?
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: drm/xe: Process deferred GGTT node removals on device unwind While we are indirectly draining our dedicated workqueue ggtt->wq that we use to complete asynchronous removal of some GGTT nodes, this happends as part of the managed-drm unwinding (ggtt_fini_early), which could be later then manage-device unwinding, where we could already unmap our MMIO/GMS mapping (mmio_fini). This was recently observed during unsuccessful VF initialization: [ ] xe 0000:00:02.1: probe with driver xe failed with error -62 [ ] xe 0000:00:02.1: DEVRES REL ffff88811e747340 __xe_bo_unpin_map_no_vm (16 bytes) [ ] xe 0000:00:02.1: DEVRES REL ffff88811e747540 __xe_bo_unpin_map_no_vm (16 bytes) [ ] xe 0000:00:02.1: DEVRES REL ffff88811e747240 __xe_bo_unpin_map_no_vm (16 bytes) [ ] xe 0000:00:02.1: DEVRES REL ffff88811e747040 tiles_fini (16 bytes) [ ] xe 0000:00:02.1: DEVRES REL ffff88811e746840 mmio_fini (16 bytes) [ ] xe 0000:00:02.1: DEVRES REL ffff88811e747f40 xe_bo_pinned_fini (16 bytes) [ ] xe 0000:00:02.1: DEVRES REL ffff88811e746b40 devm_drm_dev_init_release (16 bytes) [ ] xe 0000:00:02.1: [drm:drm_managed_release] drmres release begin [ ] xe 0000:00:02.1: [drm:drm_managed_release] REL ffff88810ef81640 __fini_relay (8 bytes) [ ] xe 0000:00:02.1: [drm:drm_managed_release] REL ffff88810ef80d40 guc_ct_fini (8 bytes) [ ] xe 0000:00:02.1: [drm:drm_managed_release] REL ffff88810ef80040 __drmm_mutex_release (8 bytes) [ ] xe 0000:00:02.1: [drm:drm_managed_release] REL ffff88810ef80140 ggtt_fini_early (8 bytes) and this was leading to: [ ] BUG: unable to handle page fault for address: ffffc900058162a0 [ ] #PF: supervisor write access in kernel mode [ ] #PF: error_code(0x0002) - not-present page [ ] Oops: Oops: 0002 [#1] SMP NOPTI [ ] Tainted: [W]=WARN [ ] Workqueue: xe-ggtt-wq ggtt_node_remove_work_func [xe] [ ] RIP: 0010:xe_ggtt_set_pte+0x6d/0x350 [xe] [ ] Call Trace: [ ] <TASK> [ ] xe_ggtt_clear+0xb0/0x270 [xe] [ ] ggtt_node_remove+0xbb/0x120 [xe] [ ] ggtt_node_remove_work_func+0x30/0x50 [xe] [ ] process_one_work+0x22b/0x6f0 [ ] worker_thread+0x1e8/0x3d Add managed-device action that will explicitly drain the workqueue with all pending node removals prior to releasing MMIO/GSM mapping. (cherry picked from commit 89d2835c3680ab1938e22ad81b1c9f8c686bd391)
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/1b12f8dabbb8fd7d5a2611dd7bc5982ffbc2e5dfPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/5ab4eba9b26a93605b4f2f2b688d6ba818d7331dPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/af2b588abe006bd55ddd358c4c3b87523349c475Patch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel 6.16
linux linux_kernel 6.16
linux linux_kernel 6.16


To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "64471BC5-89E0-43B3-8318-2D7EFF377CBD",
              "versionEndExcluding": "6.12.36",
              "versionStartIncluding": "6.12",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "0CC768E2-3BBC-4A6E-9C2F-ECB27A703C2D",
              "versionEndExcluding": "6.15.5",
              "versionStartIncluding": "6.13",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:6.16:rc1:*:*:*:*:*:*",
              "matchCriteriaId": "6D4894DB-CCFE-4602-B1BF-3960B2E19A01",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:6.16:rc2:*:*:*:*:*:*",
              "matchCriteriaId": "09709862-E348-4378-8632-5A7813EDDC86",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:6.16:rc3:*:*:*:*:*:*",
              "matchCriteriaId": "415BF58A-8197-43F5-B3D7-D1D63057A26E",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/xe: Process deferred GGTT node removals on device unwind\n\nWhile we are indirectly draining our dedicated workqueue ggtt-\u003ewq\nthat we use to complete asynchronous removal of some GGTT nodes,\nthis happends as part of the managed-drm unwinding (ggtt_fini_early),\nwhich could be later then manage-device unwinding, where we could\nalready unmap our MMIO/GMS mapping (mmio_fini).\n\nThis was recently observed during unsuccessful VF initialization:\n\n [ ] xe 0000:00:02.1: probe with driver xe failed with error -62\n [ ] xe 0000:00:02.1: DEVRES REL ffff88811e747340 __xe_bo_unpin_map_no_vm (16 bytes)\n [ ] xe 0000:00:02.1: DEVRES REL ffff88811e747540 __xe_bo_unpin_map_no_vm (16 bytes)\n [ ] xe 0000:00:02.1: DEVRES REL ffff88811e747240 __xe_bo_unpin_map_no_vm (16 bytes)\n [ ] xe 0000:00:02.1: DEVRES REL ffff88811e747040 tiles_fini (16 bytes)\n [ ] xe 0000:00:02.1: DEVRES REL ffff88811e746840 mmio_fini (16 bytes)\n [ ] xe 0000:00:02.1: DEVRES REL ffff88811e747f40 xe_bo_pinned_fini (16 bytes)\n [ ] xe 0000:00:02.1: DEVRES REL ffff88811e746b40 devm_drm_dev_init_release (16 bytes)\n [ ] xe 0000:00:02.1: [drm:drm_managed_release] drmres release begin\n [ ] xe 0000:00:02.1: [drm:drm_managed_release] REL ffff88810ef81640 __fini_relay (8 bytes)\n [ ] xe 0000:00:02.1: [drm:drm_managed_release] REL ffff88810ef80d40 guc_ct_fini (8 bytes)\n [ ] xe 0000:00:02.1: [drm:drm_managed_release] REL ffff88810ef80040 __drmm_mutex_release (8 bytes)\n [ ] xe 0000:00:02.1: [drm:drm_managed_release] REL ffff88810ef80140 ggtt_fini_early (8 bytes)\n\nand this was leading to:\n\n [ ] BUG: unable to handle page fault for address: ffffc900058162a0\n [ ] #PF: supervisor write access in kernel mode\n [ ] #PF: error_code(0x0002) - not-present page\n [ ] Oops: Oops: 0002 [#1] SMP NOPTI\n [ ] Tainted: [W]=WARN\n [ ] Workqueue: xe-ggtt-wq ggtt_node_remove_work_func [xe]\n [ ] RIP: 0010:xe_ggtt_set_pte+0x6d/0x350 [xe]\n [ ] Call Trace:\n [ ]  \u003cTASK\u003e\n [ ]  xe_ggtt_clear+0xb0/0x270 [xe]\n [ ]  ggtt_node_remove+0xbb/0x120 [xe]\n [ ]  ggtt_node_remove_work_func+0x30/0x50 [xe]\n [ ]  process_one_work+0x22b/0x6f0\n [ ]  worker_thread+0x1e8/0x3d\n\nAdd managed-device action that will explicitly drain the workqueue\nwith all pending node removals prior to releasing MMIO/GSM mapping.\n\n(cherry picked from commit 89d2835c3680ab1938e22ad81b1c9f8c686bd391)"
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: drm/xe: Proceso diferido de eliminaciones de nodos GGTT al desenrollar el dispositivo Mientras drenamos indirectamente nuestra cola de trabajo dedicada ggtt-\u0026gt;wq que usamos para completar la eliminaci\u00f3n asincr\u00f3nica de algunos nodos GGTT, esto sucede como parte del desenrollado de managed-drm (ggtt_fini_early), que podr\u00eda ser posterior al desenrollado de managed-device, donde ya podr\u00edamos desasignar nuestra asignaci\u00f3n MMIO/GMS (mmio_fini). Esto se observ\u00f3 recientemente durante una inicializaci\u00f3n de VF fallida: [ ] xe 0000:00:02.1: probe with driver xe failed with error -62 [ ] xe 0000:00:02.1: DEVRES REL ffff88811e747340 __xe_bo_unpin_map_no_vm (16 bytes) [ ] xe 0000:00:02.1: DEVRES REL ffff88811e747540 __xe_bo_unpin_map_no_vm (16 bytes) [ ] xe 0000:00:02.1: DEVRES REL ffff88811e747240 __xe_bo_unpin_map_no_vm (16 bytes) [ ] xe 0000:00:02.1: DEVRES REL ffff88811e747040 tiles_fini (16 bytes) [ ] xe 0000:00:02.1: DEVRES REL ffff88811e746840 mmio_fini (16 bytes) [ ] xe 0000:00:02.1: DEVRES REL ffff88811e747f40 xe_bo_pinned_fini (16 bytes) [ ] xe 0000:00:02.1: DEVRES REL ffff88811e746b40 devm_drm_dev_init_release (16 bytes) [ ] xe 0000:00:02.1: [drm:drm_managed_release] drmres release begin [ ] xe 0000:00:02.1: [drm:drm_managed_release] REL ffff88810ef81640 __fini_relay (8 bytes) [ ] xe 0000:00:02.1: [drm:drm_managed_release] REL ffff88810ef80d40 guc_ct_fini (8 bytes) [ ] xe 0000:00:02.1: [drm:drm_managed_release] REL ffff88810ef80040 __drmm_mutex_release (8 bytes) [ ] xe 0000:00:02.1: [drm:drm_managed_release] REL ffff88810ef80140 ggtt_fini_early (8 bytes) and this was leading to: [ ] BUG: unable to handle page fault for address: ffffc900058162a0 [ ] #PF: supervisor write access in kernel mode [ ] #PF: error_code(0x0002) - not-present page [ ] Oops: Oops: 0002 [#1] SMP NOPTI [ ] Tainted: [W]=WARN [ ] Workqueue: xe-ggtt-wq ggtt_node_remove_work_func [xe] [ ] RIP: 0010:xe_ggtt_set_pte+0x6d/0x350 [xe] [ ] Call Trace: [ ]  [ ] xe_ggtt_clear+0xb0/0x270 [xe] [ ] ggtt_node_remove+0xbb/0x120 [xe] [ ] ggtt_node_remove_work_func+0x30/0x50 [xe] [ ] process_one_work+0x22b/0x6f0 [ ] worker_thread+0x1e8/0x3d Se agreg\u00f3 una acci\u00f3n de dispositivo administrado que drenar\u00e1 expl\u00edcitamente la cola de trabajo con todas las eliminaciones de nodos pendientes antes de liberar la asignaci\u00f3n de MMIO/GSM. (Seleccionado del commit 89d2835c3680ab1938e22ad81b1c9f8c686bd391)"
    }
  ],
  "id": "CVE-2025-38355",
  "lastModified": "2025-11-18T12:50:59.920",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2025-07-25T13:15:24.240",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/1b12f8dabbb8fd7d5a2611dd7bc5982ffbc2e5df"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/5ab4eba9b26a93605b4f2f2b688d6ba818d7331d"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/af2b588abe006bd55ddd358c4c3b87523349c475"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-noinfo"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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