{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2023-52987",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2025-03-27T16:40:15.741Z",
        "datePublished": "2025-03-27T16:43:24.225Z",
        "dateUpdated": "2026-08-05T09:12:16.474Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-08-05T09:12:16.474Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nASoC: SOF: ipc4-mtrace: prevent underflow in sof_ipc4_priority_mask_dfs_write()\n\nThe \"id\" comes from the user.  Change the type to unsigned to prevent\nan array underflow."
                }
            ],
            "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 bug is reached only via write(2) to the local debugfs file sof/.../mtrace/logs_priorities_mask; there is no network, adjacent-protocol, or remote peer path into sof_ipc4_priority_mask_dfs_write().\nAC:L - A single write of a negative id (e.g. \"-1,0xdeadbeef\") deterministically bypasses the signed bounds check and performs the out-of-bounds store; no race, timing window, or layout precondition outside attacker control is required.\nPR:L - The node is mode 0644 with no capability check in the write path, and on SOF-bearing Android/ChromeOS/embedded platforms debugfs is commonly remounted or chowned to non-root service accounts, so a low-privileged local user is a realistic attacker under worst-reasonable deployment scoring.\nUI:N - The attacker opens and writes the already-present debugfs file themselves; no victim action, mount, or interaction is required.\nS:U - The underflow corrupts kernel heap/state within the host kernel's security authority; it is not a VM escape, IOMMU bypass, or other cross-boundary impact.\nC:H - Attacker-controlled out-of-bounds writes into adjacent sof_mtrace_priv fields and nearby slab objects are a memory-corruption primitive that can be leveraged for arbitrary kernel memory disclosure.\nI:H - The attacker chooses both the negative index and the u32 value written, enabling targeted corruption of adjacent state (including pointers such as sdev) and heap metadata suitable for control-flow hijacking.\nA:H - Corrupting adjacent kernel objects or writing to unmapped addresses via large negative indices reliably causes oops/panic, and the write can be repeated at will."
                        }
                    ]
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "sound/soc/sof/ipc4-mtrace.c"
                    ],
                    "versions": [
                        {
                            "version": "f4ea22f7aa7536560097d765be56445933d07e0d",
                            "lessThan": "d52f34784e4e2f6e77671a9f104d8a69a3b5d24c",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "f4ea22f7aa7536560097d765be56445933d07e0d",
                            "lessThan": "ea57680af47587397f5005d7758022441ed66d54",
                            "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/sof/ipc4-mtrace.c"
                    ],
                    "versions": [
                        {
                            "version": "6.1",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "6.1",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.11",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.2",
                            "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": "6.1",
                                    "versionEndExcluding": "6.1.11"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.1",
                                    "versionEndExcluding": "6.2"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/d52f34784e4e2f6e77671a9f104d8a69a3b5d24c"
                },
                {
                    "url": "https://git.kernel.org/stable/c/ea57680af47587397f5005d7758022441ed66d54"
                }
            ],
            "title": "ASoC: SOF: ipc4-mtrace: prevent underflow in sof_ipc4_priority_mask_dfs_write()",
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