{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2025-39680",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2025-04-16T07:20:57.112Z",
        "datePublished": "2025-09-05T17:20:46.456Z",
        "dateUpdated": "2026-07-30T05:56:51.595Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-07-30T05:56:51.595Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ni2c: rtl9300: Fix out-of-bounds bug in rtl9300_i2c_smbus_xfer\n\nThe data->block[0] variable comes from user. Without proper check,\nthe variable may be very large to cause an out-of-bounds bug.\n\nFix this bug by checking the value of data->block[0] first.\n\n1. commit 39244cc75482 (\"i2c: ismt: Fix an out-of-bounds bug in\n   ismt_access()\")\n2. commit 92fbb6d1296f (\"i2c: xgene-slimpro: Fix out-of-bounds bug in\n   xgene_slimpro_i2c_xfer()\")"
                }
            ],
            "metrics": [
                {
                    "cvssV3_1": {
                        "version": "3.1",
                        "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                        "baseScore": 7.8,
                        "baseSeverity": "HIGH"
                    }
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/i2c/busses/i2c-rtl9300.c"
                    ],
                    "versions": [
                        {
                            "version": "c366be720235301fdadf67e6f1ea6ff32669c074",
                            "lessThan": "071e43fcba5ddd9a7813e6cc0aa10299eae41b21",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "c366be720235301fdadf67e6f1ea6ff32669c074",
                            "lessThan": "57f312b955938fc4663f430cb57a71f2414f601b",
                            "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/i2c/busses/i2c-rtl9300.c"
                    ],
                    "versions": [
                        {
                            "version": "6.13",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "6.13",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.16.4",
                            "lessThanOrEqual": "6.16.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.17",
                            "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": "6.13",
                                    "versionEndExcluding": "6.16.4"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.13",
                                    "versionEndExcluding": "6.17"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/071e43fcba5ddd9a7813e6cc0aa10299eae41b21"
                },
                {
                    "url": "https://git.kernel.org/stable/c/57f312b955938fc4663f430cb57a71f2414f601b"
                }
            ],
            "title": "i2c: rtl9300: Fix out-of-bounds bug in rtl9300_i2c_smbus_xfer",
            "x_generator": {
                "engine": "bippy-1.2.0"
            }
        }
    }
}