{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2025-40340",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2025-04-16T07:20:57.187Z",
        "datePublished": "2025-12-09T04:09:57.059Z",
        "dateUpdated": "2026-05-11T21:47:28.456Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-05-11T21:47:28.456Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/xe: Fix oops in xe_gem_fault when running core_hotunplug test.\n\nI saw an oops in xe_gem_fault when running the xe-fast-feedback\ntestlist against the realtime kernel without debug options enabled.\n\nThe panic happens after core_hotunplug unbind-rebind finishes.\nPresumably what happens is that a process mmaps, unlocks because\nof the FAULT_FLAG_RETRY_NOWAIT logic, has no process memory left,\ncausing ttm_bo_vm_dummy_page() to return VM_FAULT_NOPAGE, since\nthere was nothing left to populate, and then oopses in\n\"mem_type_is_vram(tbo->resource->mem_type)\" because tbo->resource\nis NULL.\n\nIt's convoluted, but fits the data and explains the oops after\nthe test exits."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/gpu/drm/xe/xe_bo.c"
                    ],
                    "versions": [
                        {
                            "version": "dd08ebf6c3525a7ea2186e636df064ea47281987",
                            "lessThan": "99428bd6123d5676209dfb1d7a8f176cc830b665",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "dd08ebf6c3525a7ea2186e636df064ea47281987",
                            "lessThan": "29a3064f9c5a908aaf0b39cd6ed30374db11840d",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "dd08ebf6c3525a7ea2186e636df064ea47281987",
                            "lessThan": "1cda3c755bb7770be07d75949bb0f45fb88651f6",
                            "status": "affected",
                            "versionType": "git"
                        }
                    ]
                },
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/gpu/drm/xe/xe_bo.c"
                    ],
                    "versions": [
                        {
                            "version": "6.8",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "6.8",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.58",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.17.8",
                            "lessThanOrEqual": "6.17.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18",
                            "lessThanOrEqual": "*",
                            "status": "unaffected",
                            "versionType": "original_commit_for_fix"
                        }
                    ]
                }
            ],
            "cpeApplicability": [
                {
                    "nodes": [
                        {
                            "operator": "OR",
                            "negate": false,
                            "cpeMatch": [
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.8",
                                    "versionEndExcluding": "6.12.58"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.8",
                                    "versionEndExcluding": "6.17.8"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.8",
                                    "versionEndExcluding": "6.18"
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                            ]
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                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/99428bd6123d5676209dfb1d7a8f176cc830b665"
                },
                {
                    "url": "https://git.kernel.org/stable/c/29a3064f9c5a908aaf0b39cd6ed30374db11840d"
                },
                {
                    "url": "https://git.kernel.org/stable/c/1cda3c755bb7770be07d75949bb0f45fb88651f6"
                }
            ],
            "title": "drm/xe: Fix oops in xe_gem_fault when running core_hotunplug test.",
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}