cvelist/2024/41xxx/CVE-2024-41051.json

{
    "data_version": "4.0",
    "data_type": "CVE",
    "data_format": "MITRE",
    "CVE_data_meta": {
        "ID": "CVE-2024-41051",
        "ASSIGNER": "cve@kernel.org",
        "STATE": "PUBLIC"
    },
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncachefiles: wait for ondemand_object_worker to finish when dropping object\n\nWhen queuing ondemand_object_worker() to re-open the object,\ncachefiles_object is not pinned. The cachefiles_object may be freed when\nthe pending read request is completed intentionally and the related\nerofs is umounted. If ondemand_object_worker() runs after the object is\nfreed, it will incur use-after-free problem as shown below.\n\nprocess A  processs B  process C  process D\n\ncachefiles_ondemand_send_req()\n// send a read req X\n// wait for its completion\n\n           // close ondemand fd\n           cachefiles_ondemand_fd_release()\n           // set object as CLOSE\n\n                       cachefiles_ondemand_daemon_read()\n                       // set object as REOPENING\n                       queue_work(fscache_wq, &info->ondemand_work)\n\n                                // close /dev/cachefiles\n                                cachefiles_daemon_release\n                                cachefiles_flush_reqs\n                                complete(&req->done)\n\n// read req X is completed\n// umount the erofs fs\ncachefiles_put_object()\n// object will be freed\ncachefiles_ondemand_deinit_obj_info()\nkmem_cache_free(object)\n                       // both info and object are freed\n                       ondemand_object_worker()\n\nWhen dropping an object, it is no longer necessary to reopen the object,\nso use cancel_work_sync() to cancel or wait for ondemand_object_worker()\nto finish."
            }
        ]
    },
    "problemtype": {
        "problemtype_data": [
            {
                "description": [
                    {
                        "lang": "eng",
                        "value": "n/a"
                    }
                ]
            }
        ]
    },
    "affects": {
        "vendor": {
            "vendor_data": [
                {
                    "vendor_name": "Linux",
                    "product": {
                        "product_data": [
                            {
                                "product_name": "Linux",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_affected": "<",
                                            "version_name": "f17443d52d80",
                                            "version_value": "ec9289369259"
                                        },
                                        {
                                            "version_affected": "<",
                                            "version_name": "f740fd943bb1",
                                            "version_value": "d3179bae72b1"
                                        },
                                        {
                                            "version_affected": "<",
                                            "version_name": "0a7e54c1959c",
                                            "version_value": "b26525b21836"
                                        },
                                        {
                                            "version_value": "not down converted",
                                            "x_cve_json_5_version_data": {
                                                "versions": [
                                                    {
                                                        "version": "6.8",
                                                        "status": "affected"
                                                    },
                                                    {
                                                        "version": "0",
                                                        "lessThan": "6.8",
                                                        "status": "unaffected",
                                                        "versionType": "semver"
                                                    },
                                                    {
                                                        "version": "6.1.100",
                                                        "lessThanOrEqual": "6.1.*",
                                                        "status": "unaffected",
                                                        "versionType": "semver"
                                                    },
                                                    {
                                                        "version": "6.6.41",
                                                        "lessThanOrEqual": "6.6.*",
                                                        "status": "unaffected",
                                                        "versionType": "semver"
                                                    },
                                                    {
                                                        "version": "6.9.10",
                                                        "lessThanOrEqual": "6.9.*",
                                                        "status": "unaffected",
                                                        "versionType": "semver"
                                                    },
                                                    {
                                                        "version": "6.10",
                                                        "lessThanOrEqual": "*",
                                                        "status": "unaffected",
                                                        "versionType": "original_commit_for_fix"
                                                    }
                                                ],
                                                "defaultStatus": "affected"
                                            }
                                        }
                                    ]
                                }
                            }
                        ]
                    }
                }
            ]
        }
    },
    "references": {
        "reference_data": [
            {
                "url": "https://git.kernel.org/stable/c/ec9289369259d982e735a71437e32e6b4035290c",
                "refsource": "MISC",
                "name": "https://git.kernel.org/stable/c/ec9289369259d982e735a71437e32e6b4035290c"
            },
            {
                "url": "https://git.kernel.org/stable/c/d3179bae72b1b5e555ba839d6d9f40a350a4d78a",
                "refsource": "MISC",
                "name": "https://git.kernel.org/stable/c/d3179bae72b1b5e555ba839d6d9f40a350a4d78a"
            },
            {
                "url": "https://git.kernel.org/stable/c/b26525b2183632f16a3a4108fe6a4bfa8afac6ed",
                "refsource": "MISC",
                "name": "https://git.kernel.org/stable/c/b26525b2183632f16a3a4108fe6a4bfa8afac6ed"
            },
            {
                "url": "https://git.kernel.org/stable/c/12e009d60852f7bce0afc373ca0b320f14150418",
                "refsource": "MISC",
                "name": "https://git.kernel.org/stable/c/12e009d60852f7bce0afc373ca0b320f14150418"
            }
        ]
    },
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