{
    "data_version": "4.0",
    "data_type": "CVE",
    "data_format": "MITRE",
    "CVE_data_meta": {
        "ID": "CVE-2024-46676",
        "ASSIGNER": "cve@kernel.org",
        "STATE": "PUBLIC"
    },
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnfc: pn533: Add poll mod list filling check\n\nIn case of im_protocols value is 1 and tm_protocols value is 0 this\ncombination successfully passes the check\n'if (!im_protocols && !tm_protocols)' in the nfc_start_poll().\nBut then after pn533_poll_create_mod_list() call in pn533_start_poll()\npoll mod list will remain empty and dev->poll_mod_count will remain 0\nwhich lead to division by zero.\n\nNormally no im protocol has value 1 in the mask, so this combination is\nnot expected by driver. But these protocol values actually come from\nuserspace via Netlink interface (NFC_CMD_START_POLL operation). So a\nbroken or malicious program may pass a message containing a \"bad\"\ncombination of protocol parameter values so that dev->poll_mod_count\nis not incremented inside pn533_poll_create_mod_list(), thus leading\nto division by zero.\nCall trace looks like:\nnfc_genl_start_poll()\n  nfc_start_poll()\n    ->start_poll()\n    pn533_start_poll()\n\nAdd poll mod list filling check.\n\nFound by Linux Verification Center (linuxtesting.org) with SVACE."
            }
        ]
    },
    "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": "dfccd0f58044",
                                            "version_value": "c5e05237444f"
                                        },
                                        {
                                            "version_value": "not down converted",
                                            "x_cve_json_5_version_data": {
                                                "versions": [
                                                    {
                                                        "version": "3.12",
                                                        "status": "affected"
                                                    },
                                                    {
                                                        "version": "0",
                                                        "lessThan": "3.12",
                                                        "status": "unaffected",
                                                        "versionType": "custom"
                                                    },
                                                    {
                                                        "version": "5.4.283",
                                                        "lessThanOrEqual": "5.4.*",
                                                        "status": "unaffected",
                                                        "versionType": "custom"
                                                    },
                                                    {
                                                        "version": "5.10.225",
                                                        "lessThanOrEqual": "5.10.*",
                                                        "status": "unaffected",
                                                        "versionType": "custom"
                                                    },
                                                    {
                                                        "version": "5.15.166",
                                                        "lessThanOrEqual": "5.15.*",
                                                        "status": "unaffected",
                                                        "versionType": "custom"
                                                    },
                                                    {
                                                        "version": "6.1.108",
                                                        "lessThanOrEqual": "6.1.*",
                                                        "status": "unaffected",
                                                        "versionType": "custom"
                                                    },
                                                    {
                                                        "version": "6.6.49",
                                                        "lessThanOrEqual": "6.6.*",
                                                        "status": "unaffected",
                                                        "versionType": "custom"
                                                    },
                                                    {
                                                        "version": "6.10.8",
                                                        "lessThanOrEqual": "6.10.*",
                                                        "status": "unaffected",
                                                        "versionType": "custom"
                                                    },
                                                    {
                                                        "version": "6.11",
                                                        "lessThanOrEqual": "*",
                                                        "status": "unaffected",
                                                        "versionType": "original_commit_for_fix"
                                                    }
                                                ],
                                                "defaultStatus": "affected"
                                            }
                                        }
                                    ]
                                }
                            }
                        ]
                    }
                }
            ]
        }
    },
    "references": {
        "reference_data": [
            {
                "url": "https://git.kernel.org/stable/c/c5e05237444f32f6cfe5d907603a232c77a08b31",
                "refsource": "MISC",
                "name": "https://git.kernel.org/stable/c/c5e05237444f32f6cfe5d907603a232c77a08b31"
            },
            {
                "url": "https://git.kernel.org/stable/c/8ddaea033de051ed61b39f6b69ad54a411172b33",
                "refsource": "MISC",
                "name": "https://git.kernel.org/stable/c/8ddaea033de051ed61b39f6b69ad54a411172b33"
            },
            {
                "url": "https://git.kernel.org/stable/c/7535db0624a2dede374c42040808ad9a9101d723",
                "refsource": "MISC",
                "name": "https://git.kernel.org/stable/c/7535db0624a2dede374c42040808ad9a9101d723"
            },
            {
                "url": "https://git.kernel.org/stable/c/7ecd3dd4f8eecd3309432156ccfe24768e009ec4",
                "refsource": "MISC",
                "name": "https://git.kernel.org/stable/c/7ecd3dd4f8eecd3309432156ccfe24768e009ec4"
            },
            {
                "url": "https://git.kernel.org/stable/c/56ad559cf6d87f250a8d203b555dfc3716afa946",
                "refsource": "MISC",
                "name": "https://git.kernel.org/stable/c/56ad559cf6d87f250a8d203b555dfc3716afa946"
            },
            {
                "url": "https://git.kernel.org/stable/c/64513d0e546a1f19e390f7e5eba3872bfcbdacf5",
                "refsource": "MISC",
                "name": "https://git.kernel.org/stable/c/64513d0e546a1f19e390f7e5eba3872bfcbdacf5"
            },
            {
                "url": "https://git.kernel.org/stable/c/febccb39255f9df35527b88c953b2e0deae50e53",
                "refsource": "MISC",
                "name": "https://git.kernel.org/stable/c/febccb39255f9df35527b88c953b2e0deae50e53"
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    },
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