{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2024-42225", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-07-30T07:40:12.250Z", "datePublished": "2024-07-30T07:47:06.397Z", "dateUpdated": "2026-08-05T11:35:56.118Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T11:35:56.118Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mt76: replace skb_put with skb_put_zero\n\nAvoid potentially reusing uninitialized data" } ], "metrics": [ { "cvssV3_1": { "version": "3.1", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:H", "baseScore": 8.3, "baseSeverity": "HIGH" }, "scenarios": [ { "lang": "en", "value": "AV:A - All affected paths are mt76 WiFi MCU command builders driven by wireless activity — scans, station association (AP mode), beacon/in-band-discovery templates — and the unzeroed bytes end up in frames the firmware transmits, so an attacker within radio range both triggers and observes the flaw.\nAC:L - The affected code runs on every scan, association and beacon update rather than on a rare error path, and the attacker can force repeated scans or reassociations to resample fresh skb allocations indefinitely.\nPR:N - No credentials are needed: an unauthenticated station reaches the sta_rec/beacon TLV builders by sending association frames to an mt7915 AP, and the scan-path leakage requires only passive reception of probe requests.\nUI:N - Scanning, association handling and beacon offload happen automatically as part of normal WiFi operation with no victim action required.\nS:U - The impact stays within the kernel/driver and its WiFi device, which the kernel already fully controls; no VM, IOMMU or sandbox boundary is crossed.\nC:H - Uninitialized recycled kernel heap memory is embedded in MCU messages and, via the never-initialized ext_ssids[6], random_mac and ies_len/ies[] scan fields and the beacon-content sub-TLVs, can be emitted over the air where any nearby listener can collect it repeatedly.\nI:L - Uninitialized bytes populate firmware configuration the code never sets — scan_func control bits, ext_ssids_num, GTK-rekey key_mgmt/proto/cipher fields, WoW pattern and mask tails, and sta_rec_sec key padding — a real but undirected modification since the attacker does not choose the values.\nA:H - Uninitialized count and length fields handed to the MCU are wildly out of range (ies_len up to 65535 against a 600-byte array, ext_ssids_num up to 255 against 6 entries), which can fault the firmware; mt76 answers MCU exceptions and timeouts with a device reset that takes the wireless interface down." } ] } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.c", "drivers/net/wireless/mediatek/mt76/mt7915/mcu.c" ], "versions": [ { "version": "7bc04215a66b60e198aecaee8418f6d79fa19faa", "lessThan": "dc7f14d00d0c4c21898f3504607f4a31079065a2", "status": "affected", "versionType": "git" }, { "version": "7bc04215a66b60e198aecaee8418f6d79fa19faa", "lessThan": "22ea2a7f0b64d323625950414a4496520fb33657", "status": "affected", "versionType": "git" }, { "version": "7bc04215a66b60e198aecaee8418f6d79fa19faa", "lessThan": "ff6b26be13032c5fbd6b6a0b24358f8eaac4f3af", "status": "affected", "versionType": "git" }, { "version": "7bc04215a66b60e198aecaee8418f6d79fa19faa", "lessThan": "64f86337ccfe77fe3be5a9356b0dabde23fbb074", "status": "affected", "versionType": "git" }, { "version": "7bc04215a66b60e198aecaee8418f6d79fa19faa", "lessThan": "7f819a2f4fbc510e088b49c79addcf1734503578", "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/mediatek/mt76/mt76_connac_mcu.c", "drivers/net/wireless/mediatek/mt76/mt7915/mcu.c" ], "versions": [ { "version": "4.16", "status": "affected" }, { "version": "0", "lessThan": "4.16", "status": "unaffected", "versionType": "semver" }, { "version": "5.15.163", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.1.98", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.6.39", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.9.9", "lessThanOrEqual": "6.9.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.10", "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": "4.16", "versionEndExcluding": "5.15.163" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.16", "versionEndExcluding": "6.1.98" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.16", "versionEndExcluding": "6.6.39" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.16", "versionEndExcluding": "6.9.9" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.16", "versionEndExcluding": "6.10" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/dc7f14d00d0c4c21898f3504607f4a31079065a2" }, { "url": "https://git.kernel.org/stable/c/22ea2a7f0b64d323625950414a4496520fb33657" }, { "url": "https://git.kernel.org/stable/c/ff6b26be13032c5fbd6b6a0b24358f8eaac4f3af" }, { "url": "https://git.kernel.org/stable/c/64f86337ccfe77fe3be5a9356b0dabde23fbb074" }, { "url": "https://git.kernel.org/stable/c/7f819a2f4fbc510e088b49c79addcf1734503578" } ], "title": "wifi: mt76: replace skb_put with skb_put_zero", "x_generator": { "engine": "bippy-1.2.0" } }, "adp": [ { "title": "CVE Program Container", "references": [ { "url": "https://git.kernel.org/stable/c/dc7f14d00d0c4c21898f3504607f4a31079065a2", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/22ea2a7f0b64d323625950414a4496520fb33657", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/ff6b26be13032c5fbd6b6a0b24358f8eaac4f3af", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/64f86337ccfe77fe3be5a9356b0dabde23fbb074", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/7f819a2f4fbc510e088b49c79addcf1734503578", "tags": [ "x_transferred" ] }, { "url": "https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html" } ], "providerMetadata": { "orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2025-11-03T22:02:28.980Z" } }, { "metrics": [ { "other": { "type": "ssvc", "content": { "id": "CVE-2024-42225", "role": "CISA Coordinator", "options": [ { "Exploitation": "none" }, { "Automatable": "no" }, { "Technical Impact": "partial" } ], "version": "2.0.3", "timestamp": "2024-09-10T16:14:38.019669Z" } } } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-09-11T17:34:33.317Z" } } ] } }