{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "LOCAL",
              "availabilityImpact": "HIGH",
              "baseScore": 7.8,
              "baseSeverity": "HIGH",
              "confidentialityImpact": "HIGH",
              "integrityImpact": "HIGH",
              "privilegesRequired": "LOW",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2025-39896",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-01-14T19:28:28.158447Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-416",
                "description": "CWE-416 Use After Free",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-01-14T19:33:13.870Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/accel/ivpu/ivpu_drv.c",
            "drivers/accel/ivpu/ivpu_pm.c",
            "drivers/accel/ivpu/ivpu_pm.h"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "54c49eca38dbd06913a696f6d7610937dcfad226",
              "status": "affected",
              "version": "58cde80f45a2b1683ea3c24a9a9a4b0e1005336b",
              "versionType": "git"
            },
            {
              "lessThan": "565d2c15b6c36c3250e694f7b9a86229c1787be5",
              "status": "affected",
              "version": "58cde80f45a2b1683ea3c24a9a9a4b0e1005336b",
              "versionType": "git"
            },
            {
              "lessThan": "69a79ada8eb034ce016b5b78fb7d08d8687223de",
              "status": "affected",
              "version": "58cde80f45a2b1683ea3c24a9a9a4b0e1005336b",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/accel/ivpu/ivpu_drv.c",
            "drivers/accel/ivpu/ivpu_pm.c",
            "drivers/accel/ivpu/ivpu_pm.h"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.8"
            },
            {
              "lessThan": "6.8",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.46",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.16.*",
              "status": "unaffected",
              "version": "6.16.6",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.17",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.46",
                  "versionStartIncluding": "6.8",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.16.6",
                  "versionStartIncluding": "6.8",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.17",
                  "versionStartIncluding": "6.8",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\naccel/ivpu: Prevent recovery work from being queued during device removal\n\nUse disable_work_sync() instead of cancel_work_sync() in ivpu_dev_fini()\nto ensure that no new recovery work items can be queued after device\nremoval has started. Previously, recovery work could be scheduled even\nafter canceling existing work, potentially leading to use-after-free\nbugs if recovery accessed freed resources.\n\nRename ivpu_pm_cancel_recovery() to ivpu_pm_disable_recovery() to better\nreflect its new behavior."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "scenarios": [
            {
              "lang": "en",
              "value": "AV:L - The Intel NPU is an integrated PCI device driven through local ioctls on /dev/accel/accel0 and local sysfs/module operations; there is no network or adjacent-network path into ivpu_pm_trigger_recovery() or ivpu_dev_fini().\nAC:L - The attacker fully controls the recovery-triggering side of the race and can arm it persistently \u2014 wedging the NPU firmware makes every subsequent JSM/IPC message time out, so once teardown starts, `ivpu_pm_trigger_recovery()` fires from context_abort_work, IRQ handlers, or IPC timeouts with near-certainty rather than as a low-probability window, and the attempt can be repeated indefinitely at no cost.\nPR:L - Reaching the recovery triggers only needs an open handle to the accel render node \u2014 all ivpu ioctls are declared with flags 0 (no DRM_ROOT_ONLY/DRM_AUTH), so any local user in the render/uaccess group can submit faulting jobs and hang the firmware.\nUI:N - No victim must open attacker-supplied content or perform an interactive action; device teardown also occurs from automated events such as package-driven driver reload, PCI error handling, and shutdown/unbind scripts.\nS:U - The use-after-free corrupts kernel-managed driver structures within the same security authority; there is no crossing of a VM, IOMMU, or sandbox boundary.\nC:H - The late-running recovery worker reads freed drmm/GEM allocations (fw-\u003emem, ipc-\u003emem_tx/rx, a destroyed context_xa) and drives ivpu_dev_coredump()/ivpu_jsm_state_dump() over them, and a freed-then-reallocated work_struct yields a controllable dispatch \u2014 usable for arbitrary kernel memory disclosure.\nI:H - ivpu_ipc_reset() memsets and ivpu_fw_load() memcpys directly into buffer objects already released by ivpu_ipc_fini()/ivpu_fw_mem_fini(), writing into freed pages that can be reallocated to other kernel objects; the freed work-\u003efunc dereference additionally gives control-flow hijack potential.\nA:H - The use-after-free reliably produces a kernel oops or panic \u2014 NULL/freed ivpu_bo_vaddr() dereferences, iteration of a destroyed xarray, and MMIO access to a powered-down D3hot device \u2014 taking down the whole system."
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-05T12:05:57.549Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/54c49eca38dbd06913a696f6d7610937dcfad226"
        },
        {
          "url": "https://git.kernel.org/stable/c/565d2c15b6c36c3250e694f7b9a86229c1787be5"
        },
        {
          "url": "https://git.kernel.org/stable/c/69a79ada8eb034ce016b5b78fb7d08d8687223de"
        }
      ],
      "title": "accel/ivpu: Prevent recovery work from being queued during device removal",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-39896",
    "datePublished": "2025-10-01T07:42:44.714Z",
    "dateReserved": "2025-04-16T07:20:57.146Z",
    "dateUpdated": "2026-08-05T12:05:57.549Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}