{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-53294",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-06-09T07:44:35.396Z",
        "datePublished": "2026-06-26T19:40:52.927Z",
        "dateUpdated": "2026-06-26T19:40:52.927Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-06-26T19:40:52.927Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmailbox: mailbox-test: don't free the reused channel\n\nThe RX channel can be aliased to the TX channel if it has a different\nMMIO. This special case needs to be handled when freeing the channels\notherwise a double-free occurs."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/mailbox/mailbox-test.c"
                    ],
                    "versions": [
                        {
                            "version": "8ea4484d0c2bb4e2152261943fa1a3522654b1c7",
                            "lessThan": "fc0089f82c3e36060c2c79156bc2018bfb16b56b",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "8ea4484d0c2bb4e2152261943fa1a3522654b1c7",
                            "lessThan": "5d4f3d0f64f1016cb78b400a70b67df91fac99b5",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "8ea4484d0c2bb4e2152261943fa1a3522654b1c7",
                            "lessThan": "c494a11da45ad7ec9b0ff216c3e3ace351193bb6",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "8ea4484d0c2bb4e2152261943fa1a3522654b1c7",
                            "lessThan": "3afca89fae501dbd7421e1777b5b8f033b1d98d0",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "8ea4484d0c2bb4e2152261943fa1a3522654b1c7",
                            "lessThan": "5c209299b0113e289e238fa5f2e8f00c59f76060",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "8ea4484d0c2bb4e2152261943fa1a3522654b1c7",
                            "lessThan": "82f6dcea46cf5de65c4ba7283f7c7b34de4a324d",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "8ea4484d0c2bb4e2152261943fa1a3522654b1c7",
                            "lessThan": "240c71a2aea36a1a4210f911a1c32ea88777e8e4",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "8ea4484d0c2bb4e2152261943fa1a3522654b1c7",
                            "lessThan": "88ebadbf0deefdaccdab868b44ff70a0a257f473",
                            "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-test.c"
                    ],
                    "versions": [
                        {
                            "version": "4.4",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "4.4",
                            "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": "6.1.175",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.141",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.91",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.33",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.0.10",
                            "lessThanOrEqual": "7.0.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.1",
                            "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": "4.4",
                                    "versionEndExcluding": "5.10.258"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.4",
                                    "versionEndExcluding": "5.15.209"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.4",
                                    "versionEndExcluding": "6.1.175"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.4",
                                    "versionEndExcluding": "6.6.141"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.4",
                                    "versionEndExcluding": "6.12.91"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.4",
                                    "versionEndExcluding": "6.18.33"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.4",
                                    "versionEndExcluding": "7.0.10"
                                },
                                {
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                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.4",
                                    "versionEndExcluding": "7.1"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/fc0089f82c3e36060c2c79156bc2018bfb16b56b"
                },
                {
                    "url": "https://git.kernel.org/stable/c/5d4f3d0f64f1016cb78b400a70b67df91fac99b5"
                },
                {
                    "url": "https://git.kernel.org/stable/c/c494a11da45ad7ec9b0ff216c3e3ace351193bb6"
                },
                {
                    "url": "https://git.kernel.org/stable/c/3afca89fae501dbd7421e1777b5b8f033b1d98d0"
                },
                {
                    "url": "https://git.kernel.org/stable/c/5c209299b0113e289e238fa5f2e8f00c59f76060"
                },
                {
                    "url": "https://git.kernel.org/stable/c/82f6dcea46cf5de65c4ba7283f7c7b34de4a324d"
                },
                {
                    "url": "https://git.kernel.org/stable/c/240c71a2aea36a1a4210f911a1c32ea88777e8e4"
                },
                {
                    "url": "https://git.kernel.org/stable/c/88ebadbf0deefdaccdab868b44ff70a0a257f473"
                }
            ],
            "title": "mailbox: mailbox-test: don't free the reused channel",
            "x_generator": {
                "engine": "bippy-1.2.0"
            }
        }
    }
}