{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2023-53524",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2025-10-01T11:39:39.407Z",
        "datePublished": "2025-10-01T11:46:10.397Z",
        "dateUpdated": "2026-05-11T19:46:38.536Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-05-11T19:46:38.536Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: iwlwifi: pcie: Fix integer overflow in iwl_write_to_user_buf\n\nAn integer overflow occurs in the iwl_write_to_user_buf() function,\nwhich is called by the iwl_dbgfs_monitor_data_read() function.\n\nstatic bool iwl_write_to_user_buf(char __user *user_buf, ssize_t count,\n\t\t\t\t  void *buf, ssize_t *size,\n\t\t\t\t  ssize_t *bytes_copied)\n{\n\tint buf_size_left = count - *bytes_copied;\n\n\tbuf_size_left = buf_size_left - (buf_size_left % sizeof(u32));\n\tif (*size > buf_size_left)\n\t\t*size = buf_size_left;\n\nIf the user passes a SIZE_MAX value to the \"ssize_t count\" parameter,\nthe ssize_t count parameter is assigned to \"int buf_size_left\".\nThen compare \"*size\" with \"buf_size_left\" . Here, \"buf_size_left\" is a\nnegative number, so \"*size\" is assigned \"buf_size_left\" and goes into\nthe third argument of the copy_to_user function, causing a heap overflow.\n\nThis is not a security vulnerability because iwl_dbgfs_monitor_data_read()\nis a debugfs operation with 0400 privileges."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/net/wireless/intel/iwlwifi/pcie/trans.c"
                    ],
                    "versions": [
                        {
                            "version": "f7805b33f9b13a87b1fcf9dfbc3dcbce281a1436",
                            "lessThan": "0ad8dd870aa187d0c21d032bb2c6433559075eec",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "f7805b33f9b13a87b1fcf9dfbc3dcbce281a1436",
                            "lessThan": "059e426d666a41e26b184c177c1ca3ee2d6fa1b6",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "f7805b33f9b13a87b1fcf9dfbc3dcbce281a1436",
                            "lessThan": "82f877ec9b041edc4c7c509c605cc3393d837bf0",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "f7805b33f9b13a87b1fcf9dfbc3dcbce281a1436",
                            "lessThan": "eb1ef44efac797b384d361a76e33f77027c29a14",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "f7805b33f9b13a87b1fcf9dfbc3dcbce281a1436",
                            "lessThan": "de78456976026102babe66258c228691ca5677c0",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "f7805b33f9b13a87b1fcf9dfbc3dcbce281a1436",
                            "lessThan": "58d1b717879bfeabe09b35e41ad667c79933eb2e",
                            "status": "affected",
                            "versionType": "git"
                        }
                    ]
                },
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/net/wireless/intel/iwlwifi/pcie/trans.c"
                    ],
                    "versions": [
                        {
                            "version": "5.0",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "5.0",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.4.244",
                            "lessThanOrEqual": "5.4.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.10.181",
                            "lessThanOrEqual": "5.10.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.15.113",
                            "lessThanOrEqual": "5.15.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.30",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.3.4",
                            "lessThanOrEqual": "6.3.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.4",
                            "lessThanOrEqual": "*",
                            "status": "unaffected",
                            "versionType": "original_commit_for_fix"
                        }
                    ]
                }
            ],
            "cpeApplicability": [
                {
                    "nodes": [
                        {
                            "operator": "OR",
                            "negate": false,
                            "cpeMatch": [
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.0",
                                    "versionEndExcluding": "5.4.244"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.0",
                                    "versionEndExcluding": "5.10.181"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.0",
                                    "versionEndExcluding": "5.15.113"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.0",
                                    "versionEndExcluding": "6.1.30"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.0",
                                    "versionEndExcluding": "6.3.4"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.0",
                                    "versionEndExcluding": "6.4"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/0ad8dd870aa187d0c21d032bb2c6433559075eec"
                },
                {
                    "url": "https://git.kernel.org/stable/c/059e426d666a41e26b184c177c1ca3ee2d6fa1b6"
                },
                {
                    "url": "https://git.kernel.org/stable/c/82f877ec9b041edc4c7c509c605cc3393d837bf0"
                },
                {
                    "url": "https://git.kernel.org/stable/c/eb1ef44efac797b384d361a76e33f77027c29a14"
                },
                {
                    "url": "https://git.kernel.org/stable/c/de78456976026102babe66258c228691ca5677c0"
                },
                {
                    "url": "https://git.kernel.org/stable/c/58d1b717879bfeabe09b35e41ad667c79933eb2e"
                }
            ],
            "title": "wifi: iwlwifi: pcie: Fix integer overflow in iwl_write_to_user_buf",
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}