CVE-2025-38401

{"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 \u2014 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"}}]}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/mmc/host/mtk-sd.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "5ac9e9e2e9cd6247d8c2d99780eae4556049e1cc", "status": "affected", "version": "208489032bdd8d4a7de50f3057c175058f271956", "versionType": "git"}, {"lessThan": "d54771571f74a82c59830a32e76af78a8e57ac69", "status": "affected", "version": "208489032bdd8d4a7de50f3057c175058f271956", "versionType": "git"}, {"lessThan": "48bf4f3dfcdab02b22581d8e350a2d23130b72c0", "status": "affected", "version": "208489032bdd8d4a7de50f3057c175058f271956", "versionType": "git"}, {"lessThan": "63e8953f16acdcb23e2d4dd8a566d3c34df3e200", "status": "affected", "version": "208489032bdd8d4a7de50f3057c175058f271956", "versionType": "git"}, {"lessThan": "61cdd663564674ea21ceb50aa9d3697cbe9e45f9", "status": "affected", "version": "208489032bdd8d4a7de50f3057c175058f271956", "versionType": "git"}, {"lessThan": "3419bc6a7b65cbbb91417bb9970208478e034c79", "status": "affected", "version": "208489032bdd8d4a7de50f3057c175058f271956", "versionType": "git"}, {"lessThan": "a5f5f67b284d81776d4a3eb1f8607e4b7f91f11c", "status": "affected", "version": "208489032bdd8d4a7de50f3057c175058f271956", "versionType": "git"}, {"lessThan": "f5de469990f19569627ea0dd56536ff5a13beaa3", "status": "affected", "version": "208489032bdd8d4a7de50f3057c175058f271956", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/mmc/host/mtk-sd.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "4.2"}, {"lessThan": "4.2", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "5.4.*", "status": "unaffected", "version": "5.4.296", "versionType": "semver"}, {"lessThanOrEqual": "5.10.*", "status": "unaffected", "version": "5.10.240", "versionType": "semver"}, {"lessThanOrEqual": "5.15.*", "status": "unaffected", "version": "5.15.187", "versionType": "semver"}, {"lessThanOrEqual": "6.1.*", "status": "unaffected", "version": "6.1.144", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.97", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.37", "versionType": "semver"}, {"lessThanOrEqual": "6.15.*", "status": "unaffected", "version": "6.15.6", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "6.16", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "A3C25D85-948E-43F9-A66F-C49608D4D431", "versionEndExcluding": "5.4.296", "versionStartIncluding": "4.2", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "0E73A49A-F9B2-470F-91B2-6FAB6239BDB6", "versionEndExcluding": "5.10.240", "versionStartIncluding": "5.5", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "4BD28D29-423C-4173-9DB8-3BA14E9F665D", "versionEndExcluding": "5.15.187", "versionStartIncluding": "5.11", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "81CF08DB-B7A2-4556-8AE3-ED9144F50E31", "versionEndExcluding": "6.1.144", "versionStartIncluding": "5.16", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "EB1BB991-B903-4718-966C-07C803CBEABC", "versionEndExcluding": "6.6.97", "versionStartIncluding": "6.2", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "6B4159AA-C70D-4DE5-9EE2-8F2728F13C5D", "versionEndExcluding": "6.12.37", "versionStartIncluding": "6.7", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "6E0BB4E0-44BC-4645-83A8-6EA232CE624C", "versionEndExcluding": "6.15.6", "versionStartIncluding": "6.13", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.16:rc1:*:*:*:*:*:*", "matchCriteriaId": "6D4894DB-CCFE-4602-B1BF-3960B2E19A01", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.16:rc2:*:*:*:*:*:*", "matchCriteriaId": "09709862-E348-4378-8632-5A7813EDDC86", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.16:rc3:*:*:*:*:*:*", "matchCriteriaId": "415BF58A-8197-43F5-B3D7-D1D63057A26E", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.16:rc4:*:*:*:*:*:*", "matchCriteriaId": "A0517869-312D-4429-80C2-561086E1421C", "vulnerable": true}], "negate": false, "operator": "OR"}]}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*", "matchCriteriaId": "FA6FEEC2-9F11-4643-8827-749718254FED", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "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."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: mtk-sd: Prevenir la corrupci\u00f3n de memoria por un fallo en el mapeo de DMA. Si msdc_prepare_data() no logra mapear la regi\u00f3n DMA, la solicitud no se prepara para la recepci\u00f3n de datos, pero msdc_start_data() contin\u00faa el DMA con la configuraci\u00f3n anterior. Dado que esto provocar\u00e1 una corrupci\u00f3n de memoria, debemos detener la solicitud poco despu\u00e9s de que msdc_prepare_data() no la prepare."}], "id": "CVE-2025-38401", "lastModified": "2026-07-30T06:23:12.390", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.9, "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2025-07-25T13:15:29.660", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/3419bc6a7b65cbbb91417bb9970208478e034c79"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/48bf4f3dfcdab02b22581d8e350a2d23130b72c0"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/5ac9e9e2e9cd6247d8c2d99780eae4556049e1cc"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/61cdd663564674ea21ceb50aa9d3697cbe9e45f9"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/63e8953f16acdcb23e2d4dd8a566d3c34df3e200"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/a5f5f67b284d81776d4a3eb1f8607e4b7f91f11c"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/d54771571f74a82c59830a32e76af78a8e57ac69"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/f5de469990f19569627ea0dd56536ff5a13beaa3"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-787"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: mtk-sd: Prevent memory corruption from DMA map failure", "id": "2383416", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2383416"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "details": ["In the Linux kernel, the following vulnerability has been resolved:\nmtk-sd: Prevent memory corruption from DMA map failure\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."], "name": "CVE-2025-38401", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2025-07-25T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2025-38401\nhttps://nvd.nist.gov/vuln/detail/CVE-2025-38401\nhttps://lore.kernel.org/linux-cve-announce/2025072510-CVE-2025-38401-789b@gregkh/T"], "threat_severity": "Moderate"}

{"created": "2025-07-26T12:07:34.064987+00:00", "updated": "2025-07-26T12:07:34.065048+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}