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vuln-cve/data/2025/38xxx/CVE-2025-38401.json
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{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2025-38401",
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"state": "PUBLISHED",
"assignerShortName": "Linux",
"dateReserved": "2025-04-16T04:51:24.012Z",
"datePublished": "2025-07-25T12:53:44.961Z",
"dateUpdated": "2026-08-05T12:01:37.420Z"
},
"containers": {
"cna": {
"providerMetadata": {
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux",
"dateUpdated": "2026-08-05T12:01:37.420Z"
},
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmtk-sd: Prevent memory corruption from DMA map failure\n\nIf msdc_prepare_data() fails to map the DMA region, the request is\nnot prepared for data receiving, but msdc_start_data() proceeds\nthe DMA with previous setting.\nSince this will lead a memory corruption, we have to stop the\nrequest operation soon after the msdc_prepare_data() fails to\nprepare it."
}
],
"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 vulnerable path is the MMC/SD block request path reached through ordinary local file or block-device I/O on the eMMC/SD device; no network or remote peer is involved.\nAC:L - The only precondition is a dma_map_sg() failure, which a local attacker directly induces by exhausting swiotlb bounce buffers, a restricted-dma-pool, or M4U IOVA space with concurrent large O_DIRECT I/O and memory pressure, then reliably lands the corrupt transfer since every subsequent request re-arms the stale BD ring.\nPR:L - Any unprivileged local user can submit MMC requests simply by reading/writing files on the eMMC- or SD-backed filesystem and can generate the DMA-resource pressure needed; no capability or root check exists anywhere on the path.\nUI:N - The corrupt DMA is started by the driver itself as soon as a mapping failure occurs during normal I/O; no victim action is required.\nS:U - The corruption is device DMA into kernel memory managed by the same kernel security authority; no VM, sandbox, or IOMMU translation boundary is crossed.\nC:H - On write transfers the controller streams the contents of stale, already-unmapped and potentially reallocated kernel pages out to the SD/eMMC medium, and the resulting corruption is leverageable for broader kernel memory disclosure.\nI:H - On read transfers the hardware writes attacker-supplied card data into freed/reused kernel memory at stale physical addresses, an uncontrolled kernel write primitive suitable for control-flow hijacking — the commit itself states this \"will lead a memory corruption\".\nA:H - The mismatched descriptor state triggers DMA protect/checksum errors and data timeouts, and DMA into reallocated kernel memory readily produces oopses and panics."
}
]
}
],
"affected": [
{
"product": "Linux",
"vendor": "Linux",
"defaultStatus": "unaffected",
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"programFiles": [
"drivers/mmc/host/mtk-sd.c"
],
"versions": [
{
"version": "208489032bdd8d4a7de50f3057c175058f271956",
"lessThan": "5ac9e9e2e9cd6247d8c2d99780eae4556049e1cc",
"status": "affected",
"versionType": "git"
},
{
"version": "208489032bdd8d4a7de50f3057c175058f271956",
"lessThan": "d54771571f74a82c59830a32e76af78a8e57ac69",
"status": "affected",
"versionType": "git"
},
{
"version": "208489032bdd8d4a7de50f3057c175058f271956",
"lessThan": "48bf4f3dfcdab02b22581d8e350a2d23130b72c0",
"status": "affected",
"versionType": "git"
},
{
"version": "208489032bdd8d4a7de50f3057c175058f271956",
"lessThan": "63e8953f16acdcb23e2d4dd8a566d3c34df3e200",
"status": "affected",
"versionType": "git"
},
{
"version": "208489032bdd8d4a7de50f3057c175058f271956",
"lessThan": "61cdd663564674ea21ceb50aa9d3697cbe9e45f9",
"status": "affected",
"versionType": "git"
},
{
"version": "208489032bdd8d4a7de50f3057c175058f271956",
"lessThan": "3419bc6a7b65cbbb91417bb9970208478e034c79",
"status": "affected",
"versionType": "git"
},
{
"version": "208489032bdd8d4a7de50f3057c175058f271956",
"lessThan": "a5f5f67b284d81776d4a3eb1f8607e4b7f91f11c",
"status": "affected",
"versionType": "git"
},
{
"version": "208489032bdd8d4a7de50f3057c175058f271956",
"lessThan": "f5de469990f19569627ea0dd56536ff5a13beaa3",
"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/mmc/host/mtk-sd.c"
],
"versions": [
{
"version": "4.2",
"status": "affected"
},
{
"version": "0",
"lessThan": "4.2",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "5.4.296",
"lessThanOrEqual": "5.4.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "5.10.240",
"lessThanOrEqual": "5.10.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "5.15.187",
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.1.144",
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.6.97",
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.12.37",
"lessThanOrEqual": "6.12.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.15.6",
"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": "4.2",
"versionEndExcluding": "5.4.296"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "4.2",
"versionEndExcluding": "5.10.240"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "4.2",
"versionEndExcluding": "5.15.187"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "4.2",
"versionEndExcluding": "6.1.144"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "4.2",
"versionEndExcluding": "6.6.97"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "4.2",
"versionEndExcluding": "6.12.37"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "4.2",
"versionEndExcluding": "6.15.6"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "4.2",
"versionEndExcluding": "6.16"
}
]
}
]
}
],
"references": [
{
"url": "https://git.kernel.org/stable/c/5ac9e9e2e9cd6247d8c2d99780eae4556049e1cc"
},
{
"url": "https://git.kernel.org/stable/c/d54771571f74a82c59830a32e76af78a8e57ac69"
},
{
"url": "https://git.kernel.org/stable/c/48bf4f3dfcdab02b22581d8e350a2d23130b72c0"
},
{
"url": "https://git.kernel.org/stable/c/63e8953f16acdcb23e2d4dd8a566d3c34df3e200"
},
{
"url": "https://git.kernel.org/stable/c/61cdd663564674ea21ceb50aa9d3697cbe9e45f9"
},
{
"url": "https://git.kernel.org/stable/c/3419bc6a7b65cbbb91417bb9970208478e034c79"
},
{
"url": "https://git.kernel.org/stable/c/a5f5f67b284d81776d4a3eb1f8607e4b7f91f11c"
},
{
"url": "https://git.kernel.org/stable/c/f5de469990f19569627ea0dd56536ff5a13beaa3"
}
],
"title": "mtk-sd: Prevent memory corruption from DMA map failure",
"x_generator": {
"engine": "bippy-1.2.0"
}
},
"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"
}
],
"providerMetadata": {
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE",
"dateUpdated": "2025-11-03T17:37:35.519Z"
}
}
]
}
}
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