{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2025-38317",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2025-04-16T04:51:24.004Z",
        "datePublished": "2025-07-10T07:42:23.841Z",
        "dateUpdated": "2026-08-05T12:01:07.527Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-08-05T12:01:07.527Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: ath12k: Fix buffer overflow in debugfs\n\nIf the user tries to write more than 32 bytes then it results in memory\ncorruption.  Fortunately, this is debugfs so it's limited to root users."
                }
            ],
            "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 vulnerability is reached only through a `write(2)` syscall on the local debugfs file `htt_stats_type` under the ath12k pdev directory. There is no network or over-the-air path to `ath12k_write_htt_stats_type()`.\nAC:L - A single unconditional `write()` with a length greater than 32 bytes deterministically overflows the `kzalloc(32)` buffer; there is no race, timing window, or memory-layout precondition outside the attacker's control. The attacker fully controls both the overflow length and every overflowed byte.\nPR:L - The debugfs node is mode 0600, but debugfs `uid=`/`gid=`/`mode=` mount options and vendor chown policies commonly delegate debugfs access to non-root system accounts on exactly the embedded/Android-class ath12k platforms (IPQ5332 APs, WCN7850 devices), so a low-privileged local account is a realistic attacker. This is consistent with prior kernel CNA debugfs scoring (CVE-2026-46190, CVE-2026-43380, CVE-2026-64251).\nUI:N - The attacker triggers the overflow entirely on their own by writing to the debugfs file; no victim action, mount, or interaction is required.\nS:U - The heap corruption occurs in kernel memory and is exploited within the same kernel security authority; no VM, IOMMU, or sandbox boundary is crossed.\nC:H - The overflow lets the attacker overwrite adjacent kmalloc-32 slab objects with chosen content, corrupting length/pointer/index fields that can be leveraged into an arbitrary kernel-memory read primitive and disclosure of arbitrary kernel data.\nI:H - This is an unbounded heap buffer overflow with fully attacker-controlled data and length into a general-purpose slab cache, giving a direct out-of-bounds write primitive suitable for control-flow hijacking and privilege escalation.\nA:H - Overwriting adjacent slab objects and slab metadata reliably produces slab corruption, oops, or panic, and the attacker can repeat the write at will to guarantee a system crash."
                        }
                    ]
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/net/wireless/ath/ath12k/debugfs_htt_stats.c"
                    ],
                    "versions": [
                        {
                            "version": "3f73c24f28b317f22df7870c25ff82f1d625c6c2",
                            "lessThan": "0c57aa8ef94cffc5c2d68230e19329a03e71a94f",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "3f73c24f28b317f22df7870c25ff82f1d625c6c2",
                            "lessThan": "8c4a200d03574bfcbf54fdb7ba5968b58ad2e0b3",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "3f73c24f28b317f22df7870c25ff82f1d625c6c2",
                            "lessThan": "8c7a5031a6b0d42e640fbd2d5d05f61f74e32dce",
                            "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/ath/ath12k/debugfs_htt_stats.c"
                    ],
                    "versions": [
                        {
                            "version": "6.11",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "6.11",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.34",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.15.3",
                            "lessThanOrEqual": "6.15.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.16",
                            "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": "6.11",
                                    "versionEndExcluding": "6.12.34"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.11",
                                    "versionEndExcluding": "6.15.3"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.11",
                                    "versionEndExcluding": "6.16"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/0c57aa8ef94cffc5c2d68230e19329a03e71a94f"
                },
                {
                    "url": "https://git.kernel.org/stable/c/8c4a200d03574bfcbf54fdb7ba5968b58ad2e0b3"
                },
                {
                    "url": "https://git.kernel.org/stable/c/8c7a5031a6b0d42e640fbd2d5d05f61f74e32dce"
                }
            ],
            "title": "wifi: ath12k: Fix buffer overflow in debugfs",
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}