{"api_version":"1","generated_at":"2026-07-23T14:29:15+00:00","cve":"CVE-2026-53102","urls":{"html":"https://cve.report/CVE-2026-53102","api":"https://cve.report/api/cve/CVE-2026-53102.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-53102","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-53102"},"summary":{"title":"wifi: mt76: Fix memory leak after mt76_connac_mcu_alloc_sta_req()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mt76: Fix memory leak after mt76_connac_mcu_alloc_sta_req()\n\nmt76_connac_mcu_alloc_sta_req() allocates an skb which is expected to\nbe freed eventually by mt76_mcu_skb_send_msg(). However, currently if\nan intermediate function fails before sending, the allocated skb is\nleaked.\n\nSpecifically, mt76_connac_mcu_sta_wed_update() and\nmt76_connac_mcu_sta_key_tlv() may fail, leading to an immediate memory\nleak in the error path.\n\nFix this by explicitly freeing the skb in these error paths.\nCommit 7c0f63fe37a5 (\"wifi: mt76: mt7996: fix memory leak on\nmt7996_mcu_sta_key_tlv error\") made a similar change.\n\nCompile tested only. Issue found using a prototype static analysis tool\nand code review.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-06-24 17:17:24","updated_at":"2026-07-21 18:20:28"},"problem_types":["CWE-401"],"metrics":[{"version":"3.1","source":"nvd@nist.gov","type":"Primary","score":"5.5","severity":"MEDIUM","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","data":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","baseScore":5.5,"baseSeverity":"MEDIUM","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"}}],"references":[{"url":"https://git.kernel.org/stable/c/eb466406d2094deefadc2cd6ddb4f6eeb086d1b4","name":"https://git.kernel.org/stable/c/eb466406d2094deefadc2cd6ddb4f6eeb086d1b4","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/c41075ce8cf05ed8c0e7b7efef000dce548ffc42","name":"https://git.kernel.org/stable/c/c41075ce8cf05ed8c0e7b7efef000dce548ffc42","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-53102","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-53102","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6683d988089ce0e80bd859a9493333b6b272420e eb466406d2094deefadc2cd6ddb4f6eeb086d1b4 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6683d988089ce0e80bd859a9493333b6b272420e c41075ce8cf05ed8c0e7b7efef000dce548ffc42 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 5.18","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.18 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.0.10 7.0.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.1 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[{"cve_year":"2026","cve_id":"53102","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"linux","cpe5":"linux_kernel","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"}],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2026","cve_id":"53102","cve":"CVE-2026-53102","epss":"0.001560000","percentile":"0.051860000","score_date":"2026-07-21","updated_at":"2026-07-22 00:11:17"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.c","drivers/net/wireless/mediatek/mt76/mt7915/mcu.c","drivers/net/wireless/mediatek/mt76/mt7925/mcu.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"eb466406d2094deefadc2cd6ddb4f6eeb086d1b4","status":"affected","version":"6683d988089ce0e80bd859a9493333b6b272420e","versionType":"git"},{"lessThan":"c41075ce8cf05ed8c0e7b7efef000dce548ffc42","status":"affected","version":"6683d988089ce0e80bd859a9493333b6b272420e","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.c","drivers/net/wireless/mediatek/mt76/mt7915/mcu.c","drivers/net/wireless/mediatek/mt76/mt7925/mcu.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"5.18"},{"lessThan":"5.18","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"7.0.*","status":"unaffected","version":"7.0.10","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.1","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.0.10","versionStartIncluding":"5.18","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.1","versionStartIncluding":"5.18","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mt76: Fix memory leak after mt76_connac_mcu_alloc_sta_req()\n\nmt76_connac_mcu_alloc_sta_req() allocates an skb which is expected to\nbe freed eventually by mt76_mcu_skb_send_msg(). However, currently if\nan intermediate function fails before sending, the allocated skb is\nleaked.\n\nSpecifically, mt76_connac_mcu_sta_wed_update() and\nmt76_connac_mcu_sta_key_tlv() may fail, leading to an immediate memory\nleak in the error path.\n\nFix this by explicitly freeing the skb in these error paths.\nCommit 7c0f63fe37a5 (\"wifi: mt76: mt7996: fix memory leak on\nmt7996_mcu_sta_key_tlv error\") made a similar change.\n\nCompile tested only. Issue found using a prototype static analysis tool\nand code review."}],"providerMetadata":{"dateUpdated":"2026-06-24T16:30:38.536Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/eb466406d2094deefadc2cd6ddb4f6eeb086d1b4"},{"url":"https://git.kernel.org/stable/c/c41075ce8cf05ed8c0e7b7efef000dce548ffc42"}],"title":"wifi: mt76: Fix memory leak after mt76_connac_mcu_alloc_sta_req()","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-53102","datePublished":"2026-06-24T16:30:38.536Z","dateReserved":"2026-06-09T07:44:35.384Z","dateUpdated":"2026-06-24T16:30:38.536Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-06-24 17:17:24","lastModifiedDate":"2026-07-21 18:20:28","problem_types":["CWE-401"],"metrics":{"cvssMetricV31":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","baseScore":5.5,"baseSeverity":"MEDIUM","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"},"exploitabilityScore":1.8,"impactScore":3.6}]},"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.18","versionEndExcluding":"7.0.10","matchCriteriaId":"EE5C5D55-9D17-4811-BA5F-E2852C7C0CF3"}]}]}]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"53102","Ordinal":"1","Title":"wifi: mt76: Fix memory leak after mt76_connac_mcu_alloc_sta_req(","CVE":"CVE-2026-53102","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"53102","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mt76: Fix memory leak after mt76_connac_mcu_alloc_sta_req()\n\nmt76_connac_mcu_alloc_sta_req() allocates an skb which is expected to\nbe freed eventually by mt76_mcu_skb_send_msg(). However, currently if\nan intermediate function fails before sending, the allocated skb is\nleaked.\n\nSpecifically, mt76_connac_mcu_sta_wed_update() and\nmt76_connac_mcu_sta_key_tlv() may fail, leading to an immediate memory\nleak in the error path.\n\nFix this by explicitly freeing the skb in these error paths.\nCommit 7c0f63fe37a5 (\"wifi: mt76: mt7996: fix memory leak on\nmt7996_mcu_sta_key_tlv error\") made a similar change.\n\nCompile tested only. Issue found using a prototype static analysis tool\nand code review.","Type":"Description","Title":"wifi: mt76: Fix memory leak after mt76_connac_mcu_alloc_sta_req("}]}}}