{"api_version":"1","generated_at":"2026-10-01T06:30:59+00:00","cve":"CVE-2026-93802","urls":{"html":"https://cve.report/CVE-2026-93802","api":"https://cve.report/api/cve/CVE-2026-93802.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-93802","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-93802"},"summary":{"title":"wifi: rsi: validate beacon length before fixed buffer copy","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: rsi: validate beacon length before fixed buffer copy\n\nrsi_prepare_beacon() copies the mac80211 beacon frame after\nFRAME_DESC_SZ into a management skb whose usable tailroom may be smaller\nthan MAX_MGMT_PKT_SIZE after alignment.\n\nValidate the beacon length against the actual tailroom before the copy\nand skb_put(). Leave ownership of the management skb with the caller on\nerror, matching the existing rsi_send_beacon() cleanup path.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-09-24 17:17:13","updated_at":"2026-09-25 13:17:21"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/266f195d5a14eec6c482fd09fbc924584c3371a7","name":"https://git.kernel.org/stable/c/266f195d5a14eec6c482fd09fbc924584c3371a7","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/87710ad633ce4588aec88611d0d0745eb33a6991","name":"https://git.kernel.org/stable/c/87710ad633ce4588aec88611d0d0745eb33a6991","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/8ecdeb8b8a33b22c597299043c0dcfce50beb9ea","name":"https://git.kernel.org/stable/c/8ecdeb8b8a33b22c597299043c0dcfce50beb9ea","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-93802","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-93802","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected d26a9559403c7c3ec3b430f5825bc22c3d40abdb 87710ad633ce4588aec88611d0d0745eb33a6991 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected d26a9559403c7c3ec3b430f5825bc22c3d40abdb 266f195d5a14eec6c482fd09fbc924584c3371a7 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected d26a9559403c7c3ec3b430f5825bc22c3d40abdb 8ecdeb8b8a33b22c597299043c0dcfce50beb9ea git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 4.14","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 4.14 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.111 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.53 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.2 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2026","cve_id":"93802","cve":"CVE-2026-93802","epss":"0.001660000","percentile":"0.052180000","score_date":"2026-09-27","updated_at":"2026-09-28 00:02:24"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/net/wireless/rsi/rsi_91x_hal.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"87710ad633ce4588aec88611d0d0745eb33a6991","status":"affected","version":"d26a9559403c7c3ec3b430f5825bc22c3d40abdb","versionType":"git"},{"lessThan":"266f195d5a14eec6c482fd09fbc924584c3371a7","status":"affected","version":"d26a9559403c7c3ec3b430f5825bc22c3d40abdb","versionType":"git"},{"lessThan":"8ecdeb8b8a33b22c597299043c0dcfce50beb9ea","status":"affected","version":"d26a9559403c7c3ec3b430f5825bc22c3d40abdb","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/net/wireless/rsi/rsi_91x_hal.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"4.14"},{"lessThan":"4.14","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.111","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.53","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.2","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.111","versionStartIncluding":"4.14","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.53","versionStartIncluding":"4.14","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.2","versionStartIncluding":"4.14","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: rsi: validate beacon length before fixed buffer copy\n\nrsi_prepare_beacon() copies the mac80211 beacon frame after\nFRAME_DESC_SZ into a management skb whose usable tailroom may be smaller\nthan MAX_MGMT_PKT_SIZE after alignment.\n\nValidate the beacon length against the actual tailroom before the copy\nand skb_put(). Leave ownership of the management skb with the caller on\nerror, matching the existing rsi_send_beacon() cleanup path."}],"providerMetadata":{"dateUpdated":"2026-09-25T12:43:09.498Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/87710ad633ce4588aec88611d0d0745eb33a6991"},{"url":"https://git.kernel.org/stable/c/266f195d5a14eec6c482fd09fbc924584c3371a7"},{"url":"https://git.kernel.org/stable/c/8ecdeb8b8a33b22c597299043c0dcfce50beb9ea"}],"title":"wifi: rsi: validate beacon length before fixed buffer copy","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-93802","datePublished":"2026-09-24T16:02:36.341Z","dateReserved":"2026-09-18T17:59:28.789Z","dateUpdated":"2026-09-25T12:43:09.498Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-09-24 17:17:13","lastModifiedDate":"2026-09-25 13:17:21","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"93802","Ordinal":"1","Title":"wifi: rsi: validate beacon length before fixed buffer copy","CVE":"CVE-2026-93802","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"93802","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: rsi: validate beacon length before fixed buffer copy\n\nrsi_prepare_beacon() copies the mac80211 beacon frame after\nFRAME_DESC_SZ into a management skb whose usable tailroom may be smaller\nthan MAX_MGMT_PKT_SIZE after alignment.\n\nValidate the beacon length against the actual tailroom before the copy\nand skb_put(). Leave ownership of the management skb with the caller on\nerror, matching the existing rsi_send_beacon() cleanup path.","Type":"Description","Title":"wifi: rsi: validate beacon length before fixed buffer copy"}]}}}