{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2022-49129", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-02-26T01:49:39.266Z", "datePublished": "2025-02-26T01:55:05.624Z", "dateUpdated": "2026-08-12T23:57:54.463Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-12T23:57:54.463Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmt76: mt7921: fix crash when startup fails.\n\nIf the nic fails to start, it is possible that the\nreset_work has already been scheduled. Ensure the\nwork item is canceled so we do not have use-after-free\ncrash in case cleanup is called before the work item\nis executed.\n\nThis fixes crash on my x86_64 apu2 when mt7921k radio\nfails to work. Radio still fails, but OS does not\ncrash." } ], "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 UAF is in the mt7921 PCIe/SDIO WiFi driver’s stop/cleanup path when a pending reset_work races with teardown; exploitation requires local ability to drive the interface/driver lifecycle, not remote packet parsing alone.\nAC:L - Once MCU timeouts or failure paths have scheduled reset_work, a local attacker who can bring the interface down or otherwise trigger stop/cleanup controls the other side of the race and can retry until it wins.\nPR:L - Triggering stop only needs privileges to manage the wireless interface (e.g., NetworkManager/polkit or Android Wi‑Fi controls), which are commonly available to ordinary local users and do not require full root.\nUI:N - No separate victim action is required; the attacker (or automated interface management they influence) can initiate the stop/cleanup that races with reset_work.\nS:U - Impact is confined to the local kernel/host authority; this is a standard driver UAF without a VM, IOMMU, or other security-boundary escape.\nC:H - Use-after-free of driver/device state can be leveraged for arbitrary kernel memory disclosure via reclaim and controlled reuse of the freed object.\nI:H - The same UAF enables heap reuse and control-flow hijacking primitives, so integrity impact includes arbitrary kernel write / code execution potential.\nA:H - The bug causes a kernel oops/crash when reset_work runs against already-cleaned-up state, fully disrupting system availability." } ] } ], "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/mt7921/main.c" ], "versions": [ { "version": "0c1ce988460765ece1ba8eacd00533eefb6e666a", "lessThan": "38fbe806645090c07aa97171f20fc62c3d7d3a98", "status": "affected", "versionType": "git" }, { "version": "0c1ce988460765ece1ba8eacd00533eefb6e666a", "lessThan": "c1a5e6002ec441a3b9fb4d048b4b49ae93409a46", "status": "affected", "versionType": "git" }, { "version": "0c1ce988460765ece1ba8eacd00533eefb6e666a", "lessThan": "ac1260b661c2ef0d0a56680cdb5672b931b7be8f", "status": "affected", "versionType": "git" }, { "version": "0c1ce988460765ece1ba8eacd00533eefb6e666a", "lessThan": "827e7799c61b978fbc2cc9dac66cb62401b2b3f0", "status": "affected", "versionType": "git" }, { "version": "bea85ed1f508023e1586ede6a622f35fe910857b", "status": "affected", "versionType": "git" }, { "version": "5.12.16", "lessThan": "5.13", "status": "affected", "versionType": "semver" } ] }, { "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/mt7921/main.c" ], "versions": [ { "version": "5.13", "status": "affected" }, { "version": "0", "lessThan": "5.13", "status": "unaffected", "versionType": "semver" }, { "version": "5.15.34", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.16.20", "lessThanOrEqual": "5.16.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.17.3", "lessThanOrEqual": "5.17.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.18", "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": "5.13", "versionEndExcluding": "5.15.34" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.13", "versionEndExcluding": "5.16.20" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.13", "versionEndExcluding": "5.17.3" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.13", "versionEndExcluding": "5.18" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.12.16" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/38fbe806645090c07aa97171f20fc62c3d7d3a98" }, { "url": "https://git.kernel.org/stable/c/c1a5e6002ec441a3b9fb4d048b4b49ae93409a46" }, { "url": "https://git.kernel.org/stable/c/ac1260b661c2ef0d0a56680cdb5672b931b7be8f" }, { "url": "https://git.kernel.org/stable/c/827e7799c61b978fbc2cc9dac66cb62401b2b3f0" } ], "title": "mt76: mt7921: fix crash when startup fails.", "x_generator": { "engine": "bippy-1.2.0" } }, "adp": [ { "metrics": [ { "cvssV3_1": { "scope": "UNCHANGED", "version": "3.1", "baseScore": 7.8, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH" } }, { "other": { "type": "ssvc", "content": { "id": "CVE-2022-49129", "role": "CISA Coordinator", "options": [ { "Exploitation": "none" }, { "Automatable": "no" }, { "Technical Impact": "total" } ], "version": "2.0.3", "timestamp": "2025-02-27T18:17:14.426944Z" } } } ], "problemTypes": [ { "descriptions": [ { "lang": "en", "type": "CWE", "cweId": "CWE-416", "description": "CWE-416 Use After Free" } ] } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-02-27T18:22:34.818Z" } } ] } }