{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-93200",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-09-17T16:02:15.092Z",
        "datePublished": "2026-09-17T16:12:21.751Z",
        "dateUpdated": "2026-10-21T12:52:18.438Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-10-21T12:52:18.438Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ni3c: master: Fix use-after-free of master->this\n\nsysfs attribute callbacks for the master controller device dereference\nmaster->this.  However, master->this is freed in\ni3c_master_detach_free_devs() before the master device itself is\nreleased.\n\nAs a result, sysfs accesses can dereference a freed master->this\npointer, leading to a use-after-free.\n\nKeep master->this alive until i3c_masterdev_release(), which is called\nafter the master device and its sysfs state are being torn down. Do not\nfree master->this as part of the normal device detach path.\n\nOn the error path in i3c_master_set_info(), reset master->this and\nbus.cur_master to NULL before freeing the allocated device."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/i3c/master.c"
                    ],
                    "versions": [
                        {
                            "version": "3a379bbcea0af6280e1ca0d1edfcf4e68cde6ee0",
                            "lessThan": "027679d613ea73b8a00831369ec34eea804ce1bd",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "3a379bbcea0af6280e1ca0d1edfcf4e68cde6ee0",
                            "lessThan": "23a1c4288a60e253a05a882bd8928ed61beb4a48",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "3a379bbcea0af6280e1ca0d1edfcf4e68cde6ee0",
                            "lessThan": "4f3145db05fede36b35f8249b8acde5bd5d54864",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "3a379bbcea0af6280e1ca0d1edfcf4e68cde6ee0",
                            "lessThan": "50034d8d0f797c3a7a599f750a7d3e792e80dea5",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "3a379bbcea0af6280e1ca0d1edfcf4e68cde6ee0",
                            "lessThan": "feb0ed76601f3c2f91f08688c5a7d8b9d382f720",
                            "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/i3c/master.c"
                    ],
                    "versions": [
                        {
                            "version": "5.0",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "5.0",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.160",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.112",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.52",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.2.6",
                            "lessThanOrEqual": "7.2.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.3",
                            "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": "5.0",
                                    "versionEndExcluding": "6.6.160"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.0",
                                    "versionEndExcluding": "6.12.112"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.0",
                                    "versionEndExcluding": "6.18.52"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.0",
                                    "versionEndExcluding": "7.2.6"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.0",
                                    "versionEndExcluding": "7.3"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/027679d613ea73b8a00831369ec34eea804ce1bd"
                },
                {
                    "url": "https://git.kernel.org/stable/c/23a1c4288a60e253a05a882bd8928ed61beb4a48"
                },
                {
                    "url": "https://git.kernel.org/stable/c/4f3145db05fede36b35f8249b8acde5bd5d54864"
                },
                {
                    "url": "https://git.kernel.org/stable/c/50034d8d0f797c3a7a599f750a7d3e792e80dea5"
                },
                {
                    "url": "https://git.kernel.org/stable/c/feb0ed76601f3c2f91f08688c5a7d8b9d382f720"
                }
            ],
            "title": "i3c: master: Fix use-after-free of master->this",
            "x_generator": {
                "engine": "bippy-1.2.0"
            }
        }
    }
}