{
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    "data_type": "CVE",
    "data_format": "MITRE",
    "CVE_data_meta": {
        "ID": "CVE-2024-56665",
        "ASSIGNER": "cve@kernel.org",
        "STATE": "PUBLIC"
    },
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf,perf: Fix invalid prog_array access in perf_event_detach_bpf_prog\n\nSyzbot reported [1] crash that happens for following tracing scenario:\n\n  - create tracepoint perf event with attr.inherit=1, attach it to the\n    process and set bpf program to it\n  - attached process forks -> chid creates inherited event\n\n    the new child event shares the parent's bpf program and tp_event\n    (hence prog_array) which is global for tracepoint\n\n  - exit both process and its child -> release both events\n  - first perf_event_detach_bpf_prog call will release tp_event->prog_array\n    and second perf_event_detach_bpf_prog will crash, because\n    tp_event->prog_array is NULL\n\nThe fix makes sure the perf_event_detach_bpf_prog checks prog_array\nis valid before it tries to remove the bpf program from it.\n\n[1] https://lore.kernel.org/bpf/Z1MR6dCIKajNS6nU@krava/T/#m91dbf0688221ec7a7fc95e896a7ef9ff93b0b8ad"
            }
        ]
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    "problemtype": {
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                "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": "7a5c653ede645693422e43cccaa3e8f905d21c74",
                                            "version_value": "842e5af282453983586e2eae3c8eaf252de5f22f"
                                        },
                                        {
                                            "version_affected": "<",
                                            "version_name": "21db2f35fa97e4a3447f2edeb7b2569a8bfdc83b",
                                            "version_value": "c2b6b47662d5f2dfce92e5ffbdcac8229f321d9d"
                                        },
                                        {
                                            "version_affected": "<",
                                            "version_name": "0ee288e69d033850bc87abe0f9cc3ada24763d7f",
                                            "version_value": "dfb15ddf3b65e0df2129f9756d1b4fa78055cdb3"
                                        },
                                        {
                                            "version_value": "not down converted",
                                            "x_cve_json_5_version_data": {
                                                "versions": [
                                                    {
                                                        "version": "6.12",
                                                        "status": "affected"
                                                    },
                                                    {
                                                        "version": "0",
                                                        "lessThan": "6.12",
                                                        "status": "unaffected",
                                                        "versionType": "semver"
                                                    },
                                                    {
                                                        "version": "6.1.121",
                                                        "lessThanOrEqual": "6.1.*",
                                                        "status": "unaffected",
                                                        "versionType": "semver"
                                                    },
                                                    {
                                                        "version": "6.6.67",
                                                        "lessThanOrEqual": "6.6.*",
                                                        "status": "unaffected",
                                                        "versionType": "semver"
                                                    },
                                                    {
                                                        "version": "6.12.6",
                                                        "lessThanOrEqual": "6.12.*",
                                                        "status": "unaffected",
                                                        "versionType": "semver"
                                                    },
                                                    {
                                                        "version": "6.13-rc3",
                                                        "lessThanOrEqual": "*",
                                                        "status": "unaffected",
                                                        "versionType": "original_commit_for_fix"
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        "reference_data": [
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                "url": "https://git.kernel.org/stable/c/842e5af282453983586e2eae3c8eaf252de5f22f",
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