CVE-2025-37935

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2025-37935", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-04-16T04:51:23.971Z", "datePublished": "2025-05-20T15:21:59.381Z", "dateUpdated": "2026-08-05T11:58:28.431Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T11:58:28.431Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: ethernet: mtk_eth_soc: fix SER panic with 4GB+ RAM\n\nIf the mtk_poll_rx() function detects the MTK_RESETTING flag, it will\njump to release_desc and refill the high word of the SDP on the 4GB RFB.\nSubsequently, mtk_rx_clean will process an incorrect SDP, leading to a\npanic.\n\nAdd patch from MediaTek's SDK to resolve this."}], "metrics": [{"cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "baseScore": 9.8, "baseSeverity": "CRITICAL"}, "scenarios": [{"lang": "en", "value": "AV:N - The vulnerable code is the ethernet RX NAPI descriptor-recycling path, executed for every frame received on a WAN/LAN-facing port of an MT7988 router SoC, and the state that triggers it (RX FIFO overflow, free-queue-empty, DMA hang, atomic allocation failure) is produced by a sustained inbound packet flood that can be routed from anywhere. No local access or L2 adjacency is required to deliver the traffic.\nAC:L - An attacker driving sustained traffic reliably produces the RFIFO_OV/FQ_EMPTY/DMA-hang conditions that schedule SER, and once MTK_RESETTING is set every in-flight NAPI descriptor deterministically takes the release_desc path and gets its ADDR64 clobbered; the 4GB-straddling buffer placement that makes the corruption harmful is the default state on any affected 4GB+ board.\nPR:N - Triggering requires only sending network frames to the device \u2014 there is no credential check, socket ownership, or capability gate anywhere between packet arrival and mtk_poll_rx().\nUI:N - The corruption occurs entirely within the driver's receive and reset paths with no victim action required.\nS:U - The corrupted DMA address and the resulting panic stay within the kernel's own security authority; no hypervisor, IOMMU, or sandbox boundary is crossed.\nC:H - Because the re-armed descriptor points at the wrong physical page, the buffer handed up as an skb contains stale kernel memory rather than the received frame, and on a router that content can be forwarded back onto the wire; the bogus dma_unmap_single() over unrelated physical memory compounds the exposure.\nI:H - The RX DMA engine is handed a descriptor whose 36-bit address is off by up to 4GB, so the NIC writes attacker-supplied packet bytes into arbitrary unrelated kernel memory \u2014 an out-of-bounds DMA write with attacker-controlled contents that is leverageable for control-flow hijacking.\nA:H - The documented symptom is a kernel panic when mtk_rx_clean() unmaps the corrupted SDP during system error recovery, taking the entire device down."}]}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/net/ethernet/mediatek/mtk_eth_soc.c"], "versions": [{"version": "2d75891ebc09ba9cf30697dfd54497ef0220308f", "lessThan": "cb625f783f70dc6614f03612b8e64ad99cb0a13c", "status": "affected", "versionType": "git"}, {"version": "2d75891ebc09ba9cf30697dfd54497ef0220308f", "lessThan": "317013d1ad13524be02d60b9e98f08fbd13f8c14", "status": "affected", "versionType": "git"}, {"version": "2d75891ebc09ba9cf30697dfd54497ef0220308f", "lessThan": "67619cf69dec5d1d7792808dfa548616742dd51d", "status": "affected", "versionType": "git"}, {"version": "2d75891ebc09ba9cf30697dfd54497ef0220308f", "lessThan": "6e0490fc36cdac696f96e57b61d93b9ae32e0f4c", "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/ethernet/mediatek/mtk_eth_soc.c"], "versions": [{"version": "6.6", "status": "affected"}, {"version": "0", "lessThan": "6.6", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.90", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.28", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.14.6", "lessThanOrEqual": "6.14.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.15", "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": "6.6", "versionEndExcluding": "6.6.90"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.6", "versionEndExcluding": "6.12.28"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.6", "versionEndExcluding": "6.14.6"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.6", "versionEndExcluding": "6.15"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/cb625f783f70dc6614f03612b8e64ad99cb0a13c"}, {"url": "https://git.kernel.org/stable/c/317013d1ad13524be02d60b9e98f08fbd13f8c14"}, {"url": "https://git.kernel.org/stable/c/67619cf69dec5d1d7792808dfa548616742dd51d"}, {"url": "https://git.kernel.org/stable/c/6e0490fc36cdac696f96e57b61d93b9ae32e0f4c"}], "title": "net: ethernet: mtk_eth_soc: fix SER panic with 4GB+ RAM", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/net/ethernet/mediatek/mtk_eth_soc.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "cb625f783f70dc6614f03612b8e64ad99cb0a13c", "status": "affected", "version": "2d75891ebc09ba9cf30697dfd54497ef0220308f", "versionType": "git"}, {"lessThan": "317013d1ad13524be02d60b9e98f08fbd13f8c14", "status": "affected", "version": "2d75891ebc09ba9cf30697dfd54497ef0220308f", "versionType": "git"}, {"lessThan": "67619cf69dec5d1d7792808dfa548616742dd51d", "status": "affected", "version": "2d75891ebc09ba9cf30697dfd54497ef0220308f", "versionType": "git"}, {"lessThan": "6e0490fc36cdac696f96e57b61d93b9ae32e0f4c", "status": "affected", "version": "2d75891ebc09ba9cf30697dfd54497ef0220308f", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/net/ethernet/mediatek/mtk_eth_soc.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "6.6"}, {"lessThan": "6.6", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.90", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.28", "versionType": "semver"}, {"lessThanOrEqual": "6.14.*", "status": "unaffected", "version": "6.14.6", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "6.15", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "391F5581-3B83-445C-A49A-D27F71214D1B", "versionEndExcluding": "6.6.90", "versionStartIncluding": "6.6", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "5082CE19-0F3D-4521-AB3E-810D8255F500", "versionEndExcluding": "6.12.28", "versionStartIncluding": "6.7", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "19E5095E-5950-43EA-8E78-FC860855293F", "versionEndExcluding": "6.14.6", "versionStartIncluding": "6.13", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.15:rc1:*:*:*:*:*:*", "matchCriteriaId": "8D465631-2980-487A-8E65-40AE2B9F8ED1", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.15:rc2:*:*:*:*:*:*", "matchCriteriaId": "4C9D071F-B28E-46EC-AC61-22B913390211", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.15:rc3:*:*:*:*:*:*", "matchCriteriaId": "13FC0DDE-E513-465E-9E81-515702D49B74", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.15:rc4:*:*:*:*:*:*", "matchCriteriaId": "8C7B5B0E-4EEB-48F5-B4CF-0935A7633845", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: ethernet: mtk_eth_soc: fix SER panic with 4GB+ RAM\n\nIf the mtk_poll_rx() function detects the MTK_RESETTING flag, it will\njump to release_desc and refill the high word of the SDP on the 4GB RFB.\nSubsequently, mtk_rx_clean will process an incorrect SDP, leading to a\npanic.\n\nAdd patch from MediaTek's SDK to resolve this."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: net: ethernet: mtk_eth_soc: correcci\u00f3n del p\u00e1nico SER con m\u00e1s de 4 GB de RAM. Si la funci\u00f3n mtk_poll_rx() detecta el indicador MTK_RESETTING, saltar\u00e1 a release_desc y rellenar\u00e1 la palabra alta del SDP en la RFB de 4 GB. Posteriormente, mtk_rx_clean procesar\u00e1 un SDP incorrecto, lo que provocar\u00e1 un p\u00e1nico. Se ha a\u00f1adido un parche del SDK de MediaTek para solucionar esto."}], "id": "CVE-2025-37935", "lastModified": "2026-07-30T06:22:34.727", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.8, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 5.9, "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2025-05-20T16:15:30.170", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/317013d1ad13524be02d60b9e98f08fbd13f8c14"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/67619cf69dec5d1d7792808dfa548616742dd51d"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/6e0490fc36cdac696f96e57b61d93b9ae32e0f4c"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/cb625f783f70dc6614f03612b8e64ad99cb0a13c"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "NVD-CWE-noinfo"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: net: ethernet: mtk_eth_soc: fix SER panic with 4GB+ RAM", "id": "2367502", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2367502"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.0", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "status": "draft"}, "details": ["In the Linux kernel, the following vulnerability has been resolved:\nnet: ethernet: mtk_eth_soc: fix SER panic with 4GB+ RAM\nIf the mtk_poll_rx() function detects the MTK_RESETTING flag, it will\njump to release_desc and refill the high word of the SDP on the 4GB RFB.\nSubsequently, mtk_rx_clean will process an incorrect SDP, leading to a\npanic.\nAdd patch from MediaTek's SDK to resolve this."], "name": "CVE-2025-37935", "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": "2025-05-20T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2025-37935\nhttps://nvd.nist.gov/vuln/detail/CVE-2025-37935\nhttps://lore.kernel.org/linux-cve-announce/2025052007-CVE-2025-37935-4320@gregkh/T"], "threat_severity": "Moderate"}

{"created": "2025-06-27T09:26:50.815646+00:00", "updated": "2025-06-27T09:26:50.815720+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}