{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2025-71099",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-01-13T15:30:19.650Z",
        "datePublished": "2026-01-13T15:34:58.359Z",
        "dateUpdated": "2026-08-05T12:12:04.137Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-08-05T12:12:04.137Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/xe/oa: Fix potential UAF in xe_oa_add_config_ioctl()\n\nIn xe_oa_add_config_ioctl(), we accessed oa_config->id after dropping\nmetrics_lock. Since this lock protects the lifetime of oa_config, an\nattacker could guess the id and call xe_oa_remove_config_ioctl() with\nperfect timing, freeing oa_config before we dereference it, leading to\na potential use-after-free.\n\nFix this by caching the id in a local variable while holding the lock.\n\nv2: (Matt A)\n- Dropped mutex_unlock(&oa->metrics_lock) ordering change from\n  xe_oa_remove_config_ioctl()\n\n(cherry picked from commit 28aeaed130e8e587fd1b73b6d66ca41ccc5a1a31)"
                }
            ],
            "metrics": [
                {
                    "cvssV3_1": {
                        "version": "3.1",
                        "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                        "baseScore": 7.8,
                        "baseSeverity": "HIGH"
                    },
                    "scenarios": [
                        {
                            "lang": "en",
                            "value": "AV:L - The vulnerability is reached through DRM_XE_OBSERVATION add/remove ioctls on a local Xe DRM device node; no network or physical path exists.\nAC:L - The attacker controls concurrent add and remove operations, and IDs are predictable because the IDR starts at 1 and selects the lowest available value. The race can be attempted repeatedly without relying on victim-controlled state.\nPR:L - The supported observation_paranoid=0 configuration permits ordinary render-node clients without capabilities. Although the default requires initial-namespace CAP_PERFMON or CAP_SYS_ADMIN, the higher-severity reasonable deployment requires only an unprivileged local account with device access.\nUI:N - The attacker triggers both sides of the race directly through concurrent ioctls, without any victim action.\nS:U - Exploitation affects the host kernel within its existing security authority and does not inherently cross a VM, IOMMU, or separate authorization boundary.\nC:H - The stale oa_config can be dereferenced after RCU reclamation and attacker-directed slab reuse, potentially exposing kernel memory through the reclaimed ID or debug UUID accesses.\nI:H - The use-after-free permits attacker-influenced heap reuse and must be treated as potentially yielding memory-corruption primitives, arbitrary writes, or kernel code execution.\nA:H - Dereferencing reclaimed or poisoned slab memory can cause a kernel oops or panic, and the attacker can repeatedly trigger the race."
                        }
                    ]
                }
            ],
            "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_oa.c"
                    ],
                    "versions": [
                        {
                            "version": "cdf02fe1a94a768cbcd20f5c4e1a1d805f4a06c0",
                            "lessThan": "c6d30b65b7a44dac52ad49513268adbf19eab4a2",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "cdf02fe1a94a768cbcd20f5c4e1a1d805f4a06c0",
                            "lessThan": "7cdb9a9da935c687563cc682155461fef5f9b48d",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "cdf02fe1a94a768cbcd20f5c4e1a1d805f4a06c0",
                            "lessThan": "dcb171931954c51a1a7250d558f02b8f36570783",
                            "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_oa.c"
                    ],
                    "versions": [
                        {
                            "version": "6.11",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "6.11",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.64",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.4",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.19",
                            "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": "6.11",
                                    "versionEndExcluding": "6.12.64"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.11",
                                    "versionEndExcluding": "6.18.4"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.11",
                                    "versionEndExcluding": "6.19"
                                }
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            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/c6d30b65b7a44dac52ad49513268adbf19eab4a2"
                },
                {
                    "url": "https://git.kernel.org/stable/c/7cdb9a9da935c687563cc682155461fef5f9b48d"
                },
                {
                    "url": "https://git.kernel.org/stable/c/dcb171931954c51a1a7250d558f02b8f36570783"
                }
            ],
            "title": "drm/xe/oa: Fix potential UAF in xe_oa_add_config_ioctl()",
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                "engine": "bippy-1.2.0"
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}