{
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    "data_type": "CVE",
    "data_format": "MITRE",
    "CVE_data_meta": {
        "ID": "CVE-2022-48929",
        "ASSIGNER": "cve@kernel.org",
        "STATE": "PUBLIC"
    },
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Fix crash due to out of bounds access into reg2btf_ids.\n\nWhen commit e6ac2450d6de (\"bpf: Support bpf program calling kernel function\") added\nkfunc support, it defined reg2btf_ids as a cheap way to translate the verifier\nreg type to the appropriate btf_vmlinux BTF ID, however\ncommit c25b2ae13603 (\"bpf: Replace PTR_TO_XXX_OR_NULL with PTR_TO_XXX | PTR_MAYBE_NULL\")\nmoved the __BPF_REG_TYPE_MAX from the last member of bpf_reg_type enum to after\nthe base register types, and defined other variants using type flag\ncomposition. However, now, the direct usage of reg->type to index into\nreg2btf_ids may no longer fall into __BPF_REG_TYPE_MAX range, and hence lead to\nout of bounds access and kernel crash on dereference of bad pointer."
            }
        ]
    },
    "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": "e8efe8369944",
                                            "version_value": "8c39925e98d4"
                                        },
                                        {
                                            "version_affected": "<",
                                            "version_name": "931e56be527f",
                                            "version_value": "f0ce1bc9e023"
                                        },
                                        {
                                            "version_affected": "<",
                                            "version_name": "c25b2ae13603",
                                            "version_value": "45ce4b4f9009"
                                        },
                                        {
                                            "version_affected": "<",
                                            "version_name": "5.15.15",
                                            "version_value": "5.15.37"
                                        },
                                        {
                                            "version_affected": "<",
                                            "version_name": "5.16.1",
                                            "version_value": "5.16.12"
                                        }
                                    ]
                                }
                            }
                        ]
                    }
                }
            ]
        }
    },
    "references": {
        "reference_data": [
            {
                "url": "https://git.kernel.org/stable/c/8c39925e98d498b9531343066ef82ae39e41adae",
                "refsource": "MISC",
                "name": "https://git.kernel.org/stable/c/8c39925e98d498b9531343066ef82ae39e41adae"
            },
            {
                "url": "https://git.kernel.org/stable/c/f0ce1bc9e0235dd7412240be493d7ea65ed9eadc",
                "refsource": "MISC",
                "name": "https://git.kernel.org/stable/c/f0ce1bc9e0235dd7412240be493d7ea65ed9eadc"
            },
            {
                "url": "https://git.kernel.org/stable/c/45ce4b4f9009102cd9f581196d480a59208690c1",
                "refsource": "MISC",
                "name": "https://git.kernel.org/stable/c/45ce4b4f9009102cd9f581196d480a59208690c1"
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