{"api_version":"1","generated_at":"2026-08-14T05:42:24+00:00","cve":"CVE-2026-68311","urls":{"html":"https://cve.report/CVE-2026-68311","api":"https://cve.report/api/cve/CVE-2026-68311.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-68311","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-68311"},"summary":{"title":"wifi: mt76: mt7925: guard link STA in decap offload","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mt76: mt7925: guard link STA in decap offload\n\nmt7925_sta_set_decap_offload() iterates over the vif valid_links mask\nwhen updating decap offload state for an MLO station. The station may not\nhave a link STA for every valid link of the vif, so mt792x_sta_to_link()\ncan return NULL for a link that belongs to the vif but not to the station.\n\nThe function currently dereferences mlink before checking whether the\nlink WCID is ready. If mlink is NULL, setting or clearing\nMT_WCID_FLAG_HDR_TRANS dereferences a NULL pointer.\n\nSkip links without a station link before touching mlink->wcid.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-08-10 13:20:20","updated_at":"2026-08-10 13:20:20"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/f1ee53e08fdd2906e90c6a6d71e1368fcd52bfc3","name":"https://git.kernel.org/stable/c/f1ee53e08fdd2906e90c6a6d71e1368fcd52bfc3","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/d86883f7e8f03a5b81b4e59f2c0b6c05f79e01fd","name":"https://git.kernel.org/stable/c/d86883f7e8f03a5b81b4e59f2c0b6c05f79e01fd","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/1e608cae1ba0b4a600b752efa223fd2be376b143","name":"https://git.kernel.org/stable/c/1e608cae1ba0b4a600b752efa223fd2be376b143","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/96ea44f2269f30364cffa054ee3a87e595bef0d4","name":"https://git.kernel.org/stable/c/96ea44f2269f30364cffa054ee3a87e595bef0d4","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-68311","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-68311","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected b859ad65309a5f1654e8b284de582831fc88e2d8 1e608cae1ba0b4a600b752efa223fd2be376b143 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected b859ad65309a5f1654e8b284de582831fc88e2d8 f1ee53e08fdd2906e90c6a6d71e1368fcd52bfc3 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected b859ad65309a5f1654e8b284de582831fc88e2d8 d86883f7e8f03a5b81b4e59f2c0b6c05f79e01fd git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected b859ad65309a5f1654e8b284de582831fc88e2d8 96ea44f2269f30364cffa054ee3a87e595bef0d4 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6.11","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.11 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.101 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.42 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.1.6 7.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.2-rc5 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/net/wireless/mediatek/mt76/mt7925/main.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"1e608cae1ba0b4a600b752efa223fd2be376b143","status":"affected","version":"b859ad65309a5f1654e8b284de582831fc88e2d8","versionType":"git"},{"lessThan":"f1ee53e08fdd2906e90c6a6d71e1368fcd52bfc3","status":"affected","version":"b859ad65309a5f1654e8b284de582831fc88e2d8","versionType":"git"},{"lessThan":"d86883f7e8f03a5b81b4e59f2c0b6c05f79e01fd","status":"affected","version":"b859ad65309a5f1654e8b284de582831fc88e2d8","versionType":"git"},{"lessThan":"96ea44f2269f30364cffa054ee3a87e595bef0d4","status":"affected","version":"b859ad65309a5f1654e8b284de582831fc88e2d8","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/net/wireless/mediatek/mt76/mt7925/main.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.11"},{"lessThan":"6.11","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.101","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.42","versionType":"semver"},{"lessThanOrEqual":"7.1.*","status":"unaffected","version":"7.1.6","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.2-rc5","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.101","versionStartIncluding":"6.11","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.42","versionStartIncluding":"6.11","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.1.6","versionStartIncluding":"6.11","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.2-rc5","versionStartIncluding":"6.11","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mt76: mt7925: guard link STA in decap offload\n\nmt7925_sta_set_decap_offload() iterates over the vif valid_links mask\nwhen updating decap offload state for an MLO station. The station may not\nhave a link STA for every valid link of the vif, so mt792x_sta_to_link()\ncan return NULL for a link that belongs to the vif but not to the station.\n\nThe function currently dereferences mlink before checking whether the\nlink WCID is ready. If mlink is NULL, setting or clearing\nMT_WCID_FLAG_HDR_TRANS dereferences a NULL pointer.\n\nSkip links without a station link before touching mlink->wcid."}],"providerMetadata":{"dateUpdated":"2026-08-10T12:02:45.919Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/1e608cae1ba0b4a600b752efa223fd2be376b143"},{"url":"https://git.kernel.org/stable/c/f1ee53e08fdd2906e90c6a6d71e1368fcd52bfc3"},{"url":"https://git.kernel.org/stable/c/d86883f7e8f03a5b81b4e59f2c0b6c05f79e01fd"},{"url":"https://git.kernel.org/stable/c/96ea44f2269f30364cffa054ee3a87e595bef0d4"}],"title":"wifi: mt76: mt7925: guard link STA in decap offload","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-68311","datePublished":"2026-08-10T12:02:45.919Z","dateReserved":"2026-07-30T09:28:09.381Z","dateUpdated":"2026-08-10T12:02:45.919Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-08-10 13:20:20","lastModifiedDate":"2026-08-10 13:20:20","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"68311","Ordinal":"1","Title":"wifi: mt76: mt7925: guard link STA in decap offload","CVE":"CVE-2026-68311","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"68311","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mt76: mt7925: guard link STA in decap offload\n\nmt7925_sta_set_decap_offload() iterates over the vif valid_links mask\nwhen updating decap offload state for an MLO station. The station may not\nhave a link STA for every valid link of the vif, so mt792x_sta_to_link()\ncan return NULL for a link that belongs to the vif but not to the station.\n\nThe function currently dereferences mlink before checking whether the\nlink WCID is ready. If mlink is NULL, setting or clearing\nMT_WCID_FLAG_HDR_TRANS dereferences a NULL pointer.\n\nSkip links without a station link before touching mlink->wcid.","Type":"Description","Title":"wifi: mt76: mt7925: guard link STA in decap offload"}]}}}