{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2025-38481",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2025-04-16T04:51:24.021Z",
        "datePublished": "2025-07-28T11:21:46.147Z",
        "dateUpdated": "2026-05-11T21:28:50.751Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-05-11T21:28:50.751Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncomedi: Fail COMEDI_INSNLIST ioctl if n_insns is too large\n\nThe handling of the `COMEDI_INSNLIST` ioctl allocates a kernel buffer to\nhold the array of `struct comedi_insn`, getting the length from the\n`n_insns` member of the `struct comedi_insnlist` supplied by the user.\nThe allocation will fail with a WARNING and a stack dump if it is too\nlarge.\n\nAvoid that by failing with an `-EINVAL` error if the supplied `n_insns`\nvalue is unreasonable.\n\nDefine the limit on the `n_insns` value in the `MAX_INSNS` macro.  Set\nthis to the same value as `MAX_SAMPLES` (65536), which is the maximum\nallowed sum of the values of the member `n` in the array of `struct\ncomedi_insn`, and sensible comedi instructions will have an `n` of at\nleast 1."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/comedi/comedi_fops.c"
                    ],
                    "versions": [
                        {
                            "version": "ed9eccbe8970f6eedc1b978c157caf1251a896d4",
                            "lessThan": "454d732dfd0aef7d7aa950c409215ca06d717e93",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "ed9eccbe8970f6eedc1b978c157caf1251a896d4",
                            "lessThan": "c68257588e87f45530235701a42496b7e9e56adb",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "ed9eccbe8970f6eedc1b978c157caf1251a896d4",
                            "lessThan": "69dc06b9514522de532e997a21d035cd29b0db44",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "ed9eccbe8970f6eedc1b978c157caf1251a896d4",
                            "lessThan": "d4c73ce13f5b5a0fe0319f1f352ff602f0ace8e3",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "ed9eccbe8970f6eedc1b978c157caf1251a896d4",
                            "lessThan": "c9d3d9667443caafa804cd07940aeaef8e53aa90",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "ed9eccbe8970f6eedc1b978c157caf1251a896d4",
                            "lessThan": "992d600f284e719242a434166e86c1999649b71c",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "ed9eccbe8970f6eedc1b978c157caf1251a896d4",
                            "lessThan": "e3b8322cc8081d142ee4c1a43e1d702bdba1ed76",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "ed9eccbe8970f6eedc1b978c157caf1251a896d4",
                            "lessThan": "08ae4b20f5e82101d77326ecab9089e110f224cc",
                            "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/comedi/comedi_fops.c"
                    ],
                    "versions": [
                        {
                            "version": "2.6.29",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "2.6.29",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.4.297",
                            "lessThanOrEqual": "5.4.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.10.241",
                            "lessThanOrEqual": "5.10.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.15.190",
                            "lessThanOrEqual": "5.15.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.147",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.100",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.40",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.15.8",
                            "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": "2.6.29",
                                    "versionEndExcluding": "5.4.297"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "2.6.29",
                                    "versionEndExcluding": "5.10.241"
                                },
                                {
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                                    "versionStartIncluding": "2.6.29",
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                                },
                                {
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                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "2.6.29",
                                    "versionEndExcluding": "6.1.147"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "2.6.29",
                                    "versionEndExcluding": "6.6.100"
                                },
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                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                                    "versionStartIncluding": "2.6.29",
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                                },
                                {
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                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "2.6.29",
                                    "versionEndExcluding": "6.16"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/454d732dfd0aef7d7aa950c409215ca06d717e93"
                },
                {
                    "url": "https://git.kernel.org/stable/c/c68257588e87f45530235701a42496b7e9e56adb"
                },
                {
                    "url": "https://git.kernel.org/stable/c/69dc06b9514522de532e997a21d035cd29b0db44"
                },
                {
                    "url": "https://git.kernel.org/stable/c/d4c73ce13f5b5a0fe0319f1f352ff602f0ace8e3"
                },
                {
                    "url": "https://git.kernel.org/stable/c/c9d3d9667443caafa804cd07940aeaef8e53aa90"
                },
                {
                    "url": "https://git.kernel.org/stable/c/992d600f284e719242a434166e86c1999649b71c"
                },
                {
                    "url": "https://git.kernel.org/stable/c/e3b8322cc8081d142ee4c1a43e1d702bdba1ed76"
                },
                {
                    "url": "https://git.kernel.org/stable/c/08ae4b20f5e82101d77326ecab9089e110f224cc"
                }
            ],
            "title": "comedi: Fail COMEDI_INSNLIST ioctl if n_insns is too large",
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                "engine": "bippy-1.2.0"
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        },
        "adp": [
            {
                "title": "CVE Program Container",
                "references": [
                    {
                        "url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html"
                    },
                    {
                        "url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html"
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                "providerMetadata": {
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                    "shortName": "CVE",
                    "dateUpdated": "2025-11-03T17:38:50.413Z"
                }
            }
        ]
    }
}