{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.1",
    "cveMetadata": {
        "cveId": "CVE-2024-49983",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2024-10-21T12:17:06.053Z",
        "datePublished": "2024-10-21T18:02:28.474Z",
        "dateUpdated": "2024-10-22T13:38:44.023Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2024-10-21T18:02:28.474Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\next4: drop ppath from ext4_ext_replay_update_ex() to avoid double-free\n\nWhen calling ext4_force_split_extent_at() in ext4_ext_replay_update_ex(),\nthe 'ppath' is updated but it is the 'path' that is freed, thus potentially\ntriggering a double-free in the following process:\n\next4_ext_replay_update_ex\n  ppath = path\n  ext4_force_split_extent_at(&ppath)\n    ext4_split_extent_at\n      ext4_ext_insert_extent\n        ext4_ext_create_new_leaf\n          ext4_ext_grow_indepth\n            ext4_find_extent\n              if (depth > path[0].p_maxdepth)\n                kfree(path)                 ---> path First freed\n                *orig_path = path = NULL    ---> null ppath\n  kfree(path)                               ---> path double-free !!!\n\nSo drop the unnecessary ppath and use path directly to avoid this problem.\nAnd use ext4_find_extent() directly to update path, avoiding unnecessary\nmemory allocation and freeing. Also, propagate the error returned by\next4_find_extent() instead of using strange error codes."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "fs/ext4/extents.c"
                    ],
                    "versions": [
                        {
                            "version": "8016e29f4362",
                            "lessThan": "8c26d9e53e5f",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "8016e29f4362",
                            "lessThan": "a34bed978364",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "8016e29f4362",
                            "lessThan": "6367d3f04c69",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "8016e29f4362",
                            "lessThan": "1b558006d98b",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "8016e29f4362",
                            "lessThan": "3ff710662e8d",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "8016e29f4362",
                            "lessThan": "63adc9016917",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "8016e29f4362",
                            "lessThan": "5c0f4cc84d3a",
                            "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/ext4/extents.c"
                    ],
                    "versions": [
                        {
                            "version": "5.10",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "5.10",
                            "status": "unaffected",
                            "versionType": "custom"
                        },
                        {
                            "version": "5.10.227",
                            "lessThanOrEqual": "5.10.*",
                            "status": "unaffected",
                            "versionType": "custom"
                        },
                        {
                            "version": "5.15.168",
                            "lessThanOrEqual": "5.15.*",
                            "status": "unaffected",
                            "versionType": "custom"
                        },
                        {
                            "version": "6.1.113",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "custom"
                        },
                        {
                            "version": "6.6.55",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "custom"
                        },
                        {
                            "version": "6.10.14",
                            "lessThanOrEqual": "6.10.*",
                            "status": "unaffected",
                            "versionType": "custom"
                        },
                        {
                            "version": "6.11.3",
                            "lessThanOrEqual": "6.11.*",
                            "status": "unaffected",
                            "versionType": "custom"
                        },
                        {
                            "version": "6.12-rc1",
                            "lessThanOrEqual": "*",
                            "status": "unaffected",
                            "versionType": "original_commit_for_fix"
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/8c26d9e53e5fbacda0732a577e97c5a5b7882aaf"
                },
                {
                    "url": "https://git.kernel.org/stable/c/a34bed978364114390162c27e50fca50791c568d"
                },
                {
                    "url": "https://git.kernel.org/stable/c/6367d3f04c69e2b8770b8137bd800e0784b0abbc"
                },
                {
                    "url": "https://git.kernel.org/stable/c/1b558006d98b7b0b730027be0ee98973dd10ee0d"
                },
                {
                    "url": "https://git.kernel.org/stable/c/3ff710662e8d86a63a39b334e9ca0cb10e5c14b0"
                },
                {
                    "url": "https://git.kernel.org/stable/c/63adc9016917e6970fb0104ee5fd6770f02b2d80"
                },
                {
                    "url": "https://git.kernel.org/stable/c/5c0f4cc84d3a601c99bc5e6e6eb1cbda542cce95"
                }
            ],
            "title": "ext4: drop ppath from ext4_ext_replay_update_ex() to avoid double-free",
            "x_generator": {
                "engine": "bippy-c9c4e1df01b2"
            }
        },
        "adp": [
            {
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "id": "CVE-2024-49983",
                                "role": "CISA Coordinator",
                                "options": [
                                    {
                                        "Exploitation": "none"
                                    },
                                    {
                                        "Automatable": "no"
                                    },
                                    {
                                        "Technical Impact": "partial"
                                    }
                                ],
                                "version": "2.0.3",
                                "timestamp": "2024-10-22T13:32:15.569255Z"
                            }
                        }
                    }
                ],
                "title": "CISA ADP Vulnrichment",
                "providerMetadata": {
                    "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
                    "shortName": "CISA-ADP",
                    "dateUpdated": "2024-10-22T13:38:44.023Z"
                }
            }
        ]
    }
}