{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-80723",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-08-26T14:34:25.788Z",
        "datePublished": "2026-08-28T06:53:18.485Z",
        "dateUpdated": "2026-08-28T06:53:18.485Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-08-28T06:53:18.485Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nof: reserved_mem: prevent OOB when too many dynamic regions are defined\n\nOn boot, fdt_scan_reserved_mem() saves each dynamically-placed\n/reserved-memory subnode into a local array of size\nMAX_RESERVED_REGIONS.\n\nIf the device tree defines more than MAX_RESERVED_REGIONS\ndynamically-placed regions, fdt_scan_reserved_mem() writes past the\nend of the local array.\n\nAdd a bounds check that logs an error and skips the excess regions,\nrestoring the original behavior."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/of/of_reserved_mem.c"
                    ],
                    "versions": [
                        {
                            "version": "9a0fe62f93ede02c27aaca81112af1e59c8c0979",
                            "lessThan": "68d27250c9e81ab7764603e346c2b1017cb53adf",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "8a6e02d0c00e7b62e6acb74146878bb91e9e7e31",
                            "lessThan": "cfa7e2734877330d6c10e0f33953905486c4530c",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "8a6e02d0c00e7b62e6acb74146878bb91e9e7e31",
                            "lessThan": "de8ccbd6bf4efe7a059e2c483789936009e10f42",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "8a6e02d0c00e7b62e6acb74146878bb91e9e7e31",
                            "lessThan": "db3dbdfea1b8f38774419c5c2c14e4b81c48708d",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "6.12.13",
                            "lessThan": "6.12.103",
                            "status": "affected",
                            "versionType": "semver"
                        }
                    ]
                },
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/of/of_reserved_mem.c"
                    ],
                    "versions": [
                        {
                            "version": "6.13",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "6.13",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.103",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.44",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.1.8",
                            "lessThanOrEqual": "7.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.2",
                            "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": "6.12.13",
                                    "versionEndExcluding": "6.12.103"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.13",
                                    "versionEndExcluding": "6.18.44"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.13",
                                    "versionEndExcluding": "7.1.8"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.13",
                                    "versionEndExcluding": "7.2"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/68d27250c9e81ab7764603e346c2b1017cb53adf"
                },
                {
                    "url": "https://git.kernel.org/stable/c/cfa7e2734877330d6c10e0f33953905486c4530c"
                },
                {
                    "url": "https://git.kernel.org/stable/c/de8ccbd6bf4efe7a059e2c483789936009e10f42"
                },
                {
                    "url": "https://git.kernel.org/stable/c/db3dbdfea1b8f38774419c5c2c14e4b81c48708d"
                }
            ],
            "title": "of: reserved_mem: prevent OOB when too many dynamic regions are defined",
            "x_generator": {
                "engine": "bippy-1.2.0"
            }
        }
    }
}