{
    "data_version": "4.0",
    "data_type": "CVE",
    "data_format": "MITRE",
    "CVE_data_meta": {
        "ID": "CVE-2022-48806",
        "ASSIGNER": "cve@kernel.org",
        "STATE": "PUBLIC"
    },
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "In the Linux kernel, the following vulnerability has been resolved:\n\neeprom: ee1004: limit i2c reads to I2C_SMBUS_BLOCK_MAX\n\nCommit effa453168a7 (\"i2c: i801: Don't silently correct invalid transfer\nsize\") revealed that ee1004_eeprom_read() did not properly limit how\nmany bytes to read at once.\n\nIn particular, i2c_smbus_read_i2c_block_data_or_emulated() takes the\nlength to read as an u8.  If count == 256 after taking into account the\noffset and page boundary, the cast to u8 overflows.  And this is common\nwhen user space tries to read the entire EEPROM at once.\n\nTo fix it, limit each read to I2C_SMBUS_BLOCK_MAX (32) bytes, already\nthe maximum length i2c_smbus_read_i2c_block_data_or_emulated() allows."
            }
        ]
    },
    "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": "aca56c298e2a",
                                            "version_value": "3937c35493ee"
                                        },
                                        {
                                            "version_affected": "<",
                                            "version_name": "25714ad6bf5e",
                                            "version_value": "a37960df7eac"
                                        },
                                        {
                                            "version_affected": "<",
                                            "version_name": "be9313f755a7",
                                            "version_value": "9a5f471ae380"
                                        },
                                        {
                                            "version_affected": "<",
                                            "version_name": "07d9beb6e3c2",
                                            "version_value": "9443ddeb3754"
                                        },
                                        {
                                            "version_affected": "<",
                                            "version_name": "effa453168a7",
                                            "version_value": "c0689e46be23"
                                        },
                                        {
                                            "version_affected": "<",
                                            "version_name": "5.4.174",
                                            "version_value": "5.4.180"
                                        },
                                        {
                                            "version_affected": "<",
                                            "version_name": "5.10.94",
                                            "version_value": "5.10.101"
                                        },
                                        {
                                            "version_affected": "<",
                                            "version_name": "5.15.17",
                                            "version_value": "5.15.24"
                                        },
                                        {
                                            "version_affected": "<",
                                            "version_name": "5.16.3",
                                            "version_value": "5.16.10"
                                        }
                                    ]
                                }
                            }
                        ]
                    }
                }
            ]
        }
    },
    "references": {
        "reference_data": [
            {
                "url": "https://git.kernel.org/stable/c/3937c35493ee2847aaefcfa5460e94b7443eef49",
                "refsource": "MISC",
                "name": "https://git.kernel.org/stable/c/3937c35493ee2847aaefcfa5460e94b7443eef49"
            },
            {
                "url": "https://git.kernel.org/stable/c/a37960df7eac3cc8094bd1ab84864e9e32c91345",
                "refsource": "MISC",
                "name": "https://git.kernel.org/stable/c/a37960df7eac3cc8094bd1ab84864e9e32c91345"
            },
            {
                "url": "https://git.kernel.org/stable/c/9a5f471ae380f9fcb9756d453c12ca1f8595a93c",
                "refsource": "MISC",
                "name": "https://git.kernel.org/stable/c/9a5f471ae380f9fcb9756d453c12ca1f8595a93c"
            },
            {
                "url": "https://git.kernel.org/stable/c/9443ddeb3754e9e382a396b50adc1961301713ce",
                "refsource": "MISC",
                "name": "https://git.kernel.org/stable/c/9443ddeb3754e9e382a396b50adc1961301713ce"
            },
            {
                "url": "https://git.kernel.org/stable/c/c0689e46be23160d925dca95dfc411f1a0462708",
                "refsource": "MISC",
                "name": "https://git.kernel.org/stable/c/c0689e46be23160d925dca95dfc411f1a0462708"
            }
        ]
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