{
    "data_version": "4.0",
    "data_type": "CVE",
    "data_format": "MITRE",
    "CVE_data_meta": {
        "ID": "CVE-2024-26686",
        "ASSIGNER": "cve@kernel.org",
        "STATE": "PUBLIC"
    },
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nfs/proc: do_task_stat: use sig->stats_lock to gather the threads/children stats\n\nlock_task_sighand() can trigger a hard lockup.  If NR_CPUS threads call\ndo_task_stat() at the same time and the process has NR_THREADS, it will\nspin with irqs disabled O(NR_CPUS * NR_THREADS) time.\n\nChange do_task_stat() to use sig->stats_lock to gather the statistics\noutside of ->siglock protected section, in the likely case this code will\nrun lockless."
            }
        ]
    },
    "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": "1da177e4c3f4",
                                            "version_value": "cf4b8c39b9a0"
                                        },
                                        {
                                            "version_value": "not down converted",
                                            "x_cve_json_5_version_data": {
                                                "versions": [
                                                    {
                                                        "version": "6.1.82",
                                                        "lessThanOrEqual": "6.1.*",
                                                        "status": "unaffected",
                                                        "versionType": "custom"
                                                    },
                                                    {
                                                        "version": "6.7.6",
                                                        "lessThanOrEqual": "6.7.*",
                                                        "status": "unaffected",
                                                        "versionType": "custom"
                                                    },
                                                    {
                                                        "version": "6.8",
                                                        "lessThanOrEqual": "*",
                                                        "status": "unaffected",
                                                        "versionType": "original_commit_for_fix"
                                                    }
                                                ],
                                                "defaultStatus": "affected"
                                            }
                                        }
                                    ]
                                }
                            }
                        ]
                    }
                }
            ]
        }
    },
    "references": {
        "reference_data": [
            {
                "url": "https://git.kernel.org/stable/c/cf4b8c39b9a0bd81c47afc7ef62914a62dd5ec4d",
                "refsource": "MISC",
                "name": "https://git.kernel.org/stable/c/cf4b8c39b9a0bd81c47afc7ef62914a62dd5ec4d"
            },
            {
                "url": "https://git.kernel.org/stable/c/27978243f165b44e342f28f449b91327944ea071",
                "refsource": "MISC",
                "name": "https://git.kernel.org/stable/c/27978243f165b44e342f28f449b91327944ea071"
            },
            {
                "url": "https://git.kernel.org/stable/c/7601df8031fd67310af891897ef6cc0df4209305",
                "refsource": "MISC",
                "name": "https://git.kernel.org/stable/c/7601df8031fd67310af891897ef6cc0df4209305"
            }
        ]
    },
    "generator": {
        "engine": "bippy-a5840b7849dd"
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}