{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.1",
    "cveMetadata": {
        "cveId": "CVE-2022-48931",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2024-08-21T06:06:23.299Z",
        "datePublished": "2024-08-22T03:31:24.823Z",
        "dateUpdated": "2024-09-12T17:33:10.278Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2024-08-22T03:31:24.823Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nconfigfs: fix a race in configfs_{,un}register_subsystem()\n\nWhen configfs_register_subsystem() or configfs_unregister_subsystem()\nis executing link_group() or unlink_group(),\nit is possible that two processes add or delete list concurrently.\nSome unfortunate interleavings of them can cause kernel panic.\n\nOne of cases is:\nA --> B --> C --> D\nA <-- B <-- C <-- D\n\n     delete list_head *B        |      delete list_head *C\n--------------------------------|-----------------------------------\nconfigfs_unregister_subsystem   |   configfs_unregister_subsystem\n  unlink_group                  |     unlink_group\n    unlink_obj                  |       unlink_obj\n      list_del_init             |         list_del_init\n        __list_del_entry        |           __list_del_entry\n          __list_del            |             __list_del\n            // next == C        |\n            next->prev = prev   |\n                                |               next->prev = prev\n            prev->next = next   |\n                                |                 // prev == B\n                                |                 prev->next = next\n\nFix this by adding mutex when calling link_group() or unlink_group(),\nbut parent configfs_subsystem is NULL when config_item is root.\nSo I create a mutex configfs_subsystem_mutex."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "fs/configfs/dir.c"
                    ],
                    "versions": [
                        {
                            "version": "7063fbf22611",
                            "lessThan": "40805099af11",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "7063fbf22611",
                            "lessThan": "d1654de19d42",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "7063fbf22611",
                            "lessThan": "a37024f7757c",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "7063fbf22611",
                            "lessThan": "b7e2b91fcb5c",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "7063fbf22611",
                            "lessThan": "a7ab53d3c27d",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "7063fbf22611",
                            "lessThan": "e7a66dd26877",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "7063fbf22611",
                            "lessThan": "3aadfd46858b",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "7063fbf22611",
                            "lessThan": "84ec758fb2da",
                            "status": "affected",
                            "versionType": "git"
                        }
                    ]
                },
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "fs/configfs/dir.c"
                    ],
                    "versions": [
                        {
                            "version": "2.6.16",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "2.6.16",
                            "status": "unaffected",
                            "versionType": "custom"
                        },
                        {
                            "version": "4.9.304",
                            "lessThanOrEqual": "4.9.*",
                            "status": "unaffected",
                            "versionType": "custom"
                        },
                        {
                            "version": "4.14.269",
                            "lessThanOrEqual": "4.14.*",
                            "status": "unaffected",
                            "versionType": "custom"
                        },
                        {
                            "version": "4.19.232",
                            "lessThanOrEqual": "4.19.*",
                            "status": "unaffected",
                            "versionType": "custom"
                        },
                        {
                            "version": "5.4.182",
                            "lessThanOrEqual": "5.4.*",
                            "status": "unaffected",
                            "versionType": "custom"
                        },
                        {
                            "version": "5.10.103",
                            "lessThanOrEqual": "5.10.*",
                            "status": "unaffected",
                            "versionType": "custom"
                        },
                        {
                            "version": "5.15.26",
                            "lessThanOrEqual": "5.15.*",
                            "status": "unaffected",
                            "versionType": "custom"
                        },
                        {
                            "version": "5.16.12",
                            "lessThanOrEqual": "5.16.*",
                            "status": "unaffected",
                            "versionType": "custom"
                        },
                        {
                            "version": "5.17",
                            "lessThanOrEqual": "*",
                            "status": "unaffected",
                            "versionType": "original_commit_for_fix"
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/40805099af11f68c5ca7dbcfacf455da8f99f622"
                },
                {
                    "url": "https://git.kernel.org/stable/c/d1654de19d42f513b6cfe955cc77e7f427e05a77"
                },
                {
                    "url": "https://git.kernel.org/stable/c/a37024f7757c25550accdebf49e497ad6ae239fe"
                },
                {
                    "url": "https://git.kernel.org/stable/c/b7e2b91fcb5c78c414e33dc8d50642e307ca0c5a"
                },
                {
                    "url": "https://git.kernel.org/stable/c/a7ab53d3c27dfe83bb594456b9f38a37796ec39b"
                },
                {
                    "url": "https://git.kernel.org/stable/c/e7a66dd2687758718eddd79b542a95cf3aa488cc"
                },
                {
                    "url": "https://git.kernel.org/stable/c/3aadfd46858b1f64d4d6a0654b863e21aabff975"
                },
                {
                    "url": "https://git.kernel.org/stable/c/84ec758fb2daa236026506868c8796b0500c047d"
                }
            ],
            "title": "configfs: fix a race in configfs_{,un}register_subsystem()",
            "x_generator": {
                "engine": "bippy-c9c4e1df01b2"
            }
        },
        "adp": [
            {
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "id": "CVE-2022-48931",
                                "role": "CISA Coordinator",
                                "options": [
                                    {
                                        "Exploitation": "none"
                                    },
                                    {
                                        "Automatable": "no"
                                    },
                                    {
                                        "Technical Impact": "partial"
                                    }
                                ],
                                "version": "2.0.3",
                                "timestamp": "2024-09-10T15:32:49.740795Z"
                            }
                        }
                    }
                ],
                "title": "CISA ADP Vulnrichment",
                "providerMetadata": {
                    "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
                    "shortName": "CISA-ADP",
                    "dateUpdated": "2024-09-12T17:33:10.278Z"
                }
            }
        ]
    }
}