{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-43281",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-05-01T14:12:55.998Z",
        "datePublished": "2026-05-06T11:29:02.278Z",
        "dateUpdated": "2026-06-01T16:15:32.145Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-06-01T16:15:32.145Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmailbox: Prevent out-of-bounds access in fw_mbox_index_xlate()\n\nAlthough it is guided that `#mbox-cells` must be at least 1, there are\nmany instances of `#mbox-cells = <0>;` in the device tree. If that is\nthe case and the corresponding mailbox controller does not provide\n`fw_xlate` and of_xlate` function pointers, `fw_mbox_index_xlate()` will\nbe used by default and out-of-bounds accesses could occur due to lack of\nbounds check in that function."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/mailbox/mailbox.c"
                    ],
                    "versions": [
                        {
                            "version": "2b6d83e2b8b7de82331a6a1dcd64b51020a6031c",
                            "lessThan": "2c7ff651ec6b660c7c96a36db9328b3232f555d8",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "2b6d83e2b8b7de82331a6a1dcd64b51020a6031c",
                            "lessThan": "ec0874447895b994182a962d2fee9ef075de5efd",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "2b6d83e2b8b7de82331a6a1dcd64b51020a6031c",
                            "lessThan": "2662ed331a69c0b551f78af58f12eb629a89a36f",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "2b6d83e2b8b7de82331a6a1dcd64b51020a6031c",
                            "lessThan": "31c4c67dec3362094a6747a171a4848e98542265",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "2b6d83e2b8b7de82331a6a1dcd64b51020a6031c",
                            "lessThan": "01d9a8c2615d436b2b30c19c1afe9fcd5726ff6d",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "2b6d83e2b8b7de82331a6a1dcd64b51020a6031c",
                            "lessThan": "4caae8168d1b808c7d4ff481295292e3f97f90fb",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "2b6d83e2b8b7de82331a6a1dcd64b51020a6031c",
                            "lessThan": "f50b39fd7c72a8734153644ee945ca0d8b2e65ab",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "2b6d83e2b8b7de82331a6a1dcd64b51020a6031c",
                            "lessThan": "fcd7f96c783626c07ee3ed75fa3739a8a2052310",
                            "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/mailbox/mailbox.c"
                    ],
                    "versions": [
                        {
                            "version": "3.18",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "3.18",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.10.258",
                            "lessThanOrEqual": "5.10.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.15.209",
                            "lessThanOrEqual": "5.15.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.167",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.130",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.77",
                            "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": "3.18",
                                    "versionEndExcluding": "5.10.258"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "3.18",
                                    "versionEndExcluding": "5.15.209"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "3.18",
                                    "versionEndExcluding": "6.1.167"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "3.18",
                                    "versionEndExcluding": "6.6.130"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "3.18",
                                    "versionEndExcluding": "6.12.77"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "3.18",
                                    "versionEndExcluding": "6.18.16"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "3.18",
                                    "versionEndExcluding": "6.19.6"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "3.18",
                                    "versionEndExcluding": "7.0"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/2c7ff651ec6b660c7c96a36db9328b3232f555d8"
                },
                {
                    "url": "https://git.kernel.org/stable/c/ec0874447895b994182a962d2fee9ef075de5efd"
                },
                {
                    "url": "https://git.kernel.org/stable/c/2662ed331a69c0b551f78af58f12eb629a89a36f"
                },
                {
                    "url": "https://git.kernel.org/stable/c/31c4c67dec3362094a6747a171a4848e98542265"
                },
                {
                    "url": "https://git.kernel.org/stable/c/01d9a8c2615d436b2b30c19c1afe9fcd5726ff6d"
                },
                {
                    "url": "https://git.kernel.org/stable/c/4caae8168d1b808c7d4ff481295292e3f97f90fb"
                },
                {
                    "url": "https://git.kernel.org/stable/c/f50b39fd7c72a8734153644ee945ca0d8b2e65ab"
                },
                {
                    "url": "https://git.kernel.org/stable/c/fcd7f96c783626c07ee3ed75fa3739a8a2052310"
                }
            ],
            "title": "mailbox: Prevent out-of-bounds access in fw_mbox_index_xlate()",
            "x_generator": {
                "engine": "bippy-1.2.0"
            }
        }
    }
}