{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-64041",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-07-19T07:54:57.029Z",
        "datePublished": "2026-07-19T15:39:27.967Z",
        "dateUpdated": "2026-08-05T12:38:33.905Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-08-05T12:38:33.905Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nASoC: codecs: fs210x: fix possible buffer overflow\n\nIn fs210x_effect_scene_info(), a string was copied like this:\n\n    strscpy(DST, SRC, strlen(SRC) + 1);\n\nA buffer overflow would happen if strlen(SRC) >= sizeof(DST).\nActually, strscpy() must be used this way:\n\n    strscpy(DST, SRC, sizeof(DST));\n    strscpy(DST, SRC); // defaults to sizeof(DST)"
                }
            ],
            "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"
                    },
                    "scenarios": [
                        {
                            "lang": "en",
                            "value": "AV:L - The overflow is triggered only through a local ALSA control ioctl on /dev/snd/controlC*, not via any network, Bluetooth, or physical bus interface.\nAC:L - Once firmware contains a scene name of 64+ bytes, a single SNDRV_CTL_IOCTL_ELEM_INFO call deterministically overflows the 64-byte enumerated name buffer on the kernel stack.\nPR:L - Exploitation requires local access to the ALSA control device, which is typically granted to unprivileged users in the audio group on embedded Linux, kiosk, and IoT deployments using this amplifier.\nUI:N - The attacker can trigger the vulnerable ioctl directly (e.g., via amixer or a custom program) without requiring any action from a victim user.\nS:U - Successful exploitation results in standard kernel memory corruption and potential local privilege escalation within the same security authority, not a cross-boundary escape such as VM or sandbox breakout.\nC:H - The stack buffer overflow writes beyond the 64-byte destination, corrupting adjacent kernel stack data and enabling information disclosure as part of memory corruption exploitation.\nI:H - Unbounded stack corruption from the incorrect strscpy size argument can overwrite return addresses and other stack metadata, enabling arbitrary kernel code execution.\nA:H - Stack corruption in kernel context during ioctl handling can cause kernel oops, panic, or hang, resulting in complete loss of system availability."
                        }
                    ]
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "sound/soc/codecs/fs210x.c"
                    ],
                    "versions": [
                        {
                            "version": "75611770177965ae902c87c96eace07542beff07",
                            "lessThan": "1ddf678bb75b6383c775ece61d40956c441d8a26",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "75611770177965ae902c87c96eace07542beff07",
                            "lessThan": "6daefdf1cd3c56483f61970a76c0ad6028e4118f",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "75611770177965ae902c87c96eace07542beff07",
                            "lessThan": "0d435a7ebcd4e97e47673c1ab6fb27f973a053ec",
                            "status": "affected",
                            "versionType": "git"
                        }
                    ]
                },
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "sound/soc/codecs/fs210x.c"
                    ],
                    "versions": [
                        {
                            "version": "6.18",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "6.18",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.34",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.0.11",
                            "lessThanOrEqual": "7.0.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.1",
                            "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": "6.18",
                                    "versionEndExcluding": "6.18.34"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.18",
                                    "versionEndExcluding": "7.0.11"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.18",
                                    "versionEndExcluding": "7.1"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/1ddf678bb75b6383c775ece61d40956c441d8a26"
                },
                {
                    "url": "https://git.kernel.org/stable/c/6daefdf1cd3c56483f61970a76c0ad6028e4118f"
                },
                {
                    "url": "https://git.kernel.org/stable/c/0d435a7ebcd4e97e47673c1ab6fb27f973a053ec"
                }
            ],
            "title": "ASoC: codecs: fs210x: fix possible buffer overflow",
            "x_generator": {
                "engine": "bippy-1.2.0"
            }
        }
    }
}