{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2025-71300",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-05-08T13:14:33.087Z",
        "datePublished": "2026-05-08T13:15:21.406Z",
        "dateUpdated": "2026-08-05T12:12:43.409Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-08-05T12:12:43.409Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nRevert \"arm64: zynqmp: Add an OP-TEE node to the device tree\"\n\nThis reverts commit 06d22ed6b6635b17551f386b50bb5aaff9b75fbe.\n\nOP-TEE logic in U-Boot automatically injects a reserved-memory\nnode along with optee firmware node to kernel device tree.\nThe injection logic is dependent on that there is no manually\ndefined optee node. Having the node in zynqmp.dtsi effectively\nbreaks OP-TEE's insertion of the reserved-memory node, causing\nmemory access violations during runtime."
                }
            ],
            "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 - An attacker with local code execution can reach the failure through ordinary memory-allocation paths and, in static shared-memory deployments, through normal TEE-device ioctls; no network or physical access is required.\nAC:L - Once the affected ZynqMP OP-TEE boot flow is present, the attacker controls memory pressure or shared-memory allocation without needing an uncontrollable race or victim state.\nPR:L - An unprivileged local process can create memory pressure through ordinary mappings, and the normal TEE client interface has no capability check where device permissions permit client access.\nUI:N - The attacker can trigger allocations and access the conflicting physical pages directly, without another user performing any action.\nS:U - The resulting corruption, privilege escalation, or denial of service affects the Linux kernel and host resources within the same security authority.\nC:H - In supported static-shared-memory configurations, the missing reservation lets Linux's buddy allocator and the OP-TEE pool own the same physical pages, allowing mapped TEE shared memory to expose sensitive kernel or process data.\nI:H - The overlapping ownership provides attacker-writable aliases to pages that Linux can use for kernel objects or other allocations, making arbitrary corruption and control-flow hijacking plausible.\nA:H - Linux may allocate secure OP-TEE pages as normal RAM, causing synchronous external aborts and kernel crashes, while shared-memory aliasing can independently produce fatal memory corruption."
                        }
                    ]
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "arch/arm64/boot/dts/xilinx/zynqmp.dtsi"
                    ],
                    "versions": [
                        {
                            "version": "06d22ed6b6635b17551f386b50bb5aaff9b75fbe",
                            "lessThan": "eece81eeda10eb42c687399fb5aa69977ae15664",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "06d22ed6b6635b17551f386b50bb5aaff9b75fbe",
                            "lessThan": "3983ef126e439900bbf419724a9759863c146660",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "06d22ed6b6635b17551f386b50bb5aaff9b75fbe",
                            "lessThan": "2a833c730d4e8d1cc10953270ce0f3a156145d81",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "06d22ed6b6635b17551f386b50bb5aaff9b75fbe",
                            "lessThan": "c197179990124f991fca220d97fac56779a02c6d",
                            "status": "affected",
                            "versionType": "git"
                        }
                    ]
                },
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "arch/arm64/boot/dts/xilinx/zynqmp.dtsi"
                    ],
                    "versions": [
                        {
                            "version": "6.9",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "6.9",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.75",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.16",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.19.6",
                            "lessThanOrEqual": "6.19.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.0",
                            "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": "6.9",
                                    "versionEndExcluding": "6.12.75"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.9",
                                    "versionEndExcluding": "6.18.16"
                                },
                                {
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                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.9",
                                    "versionEndExcluding": "6.19.6"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.9",
                                    "versionEndExcluding": "7.0"
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                    ]
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            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/eece81eeda10eb42c687399fb5aa69977ae15664"
                },
                {
                    "url": "https://git.kernel.org/stable/c/3983ef126e439900bbf419724a9759863c146660"
                },
                {
                    "url": "https://git.kernel.org/stable/c/2a833c730d4e8d1cc10953270ce0f3a156145d81"
                },
                {
                    "url": "https://git.kernel.org/stable/c/c197179990124f991fca220d97fac56779a02c6d"
                }
            ],
            "title": "Revert \"arm64: zynqmp: Add an OP-TEE node to the device tree\"",
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        }
    }
}