{"api_version":"1","generated_at":"2026-09-18T09:33:40+00:00","cve":"CVE-2026-90114","urls":{"html":"https://cve.report/CVE-2026-90114","api":"https://cve.report/api/cve/CVE-2026-90114.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-90114","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-90114"},"summary":{"title":"net: bridge: Reject descending VLAN tunnel ranges","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: bridge: Reject descending VLAN tunnel ranges\n\nA pair of descending VLAN and tunnel IDs can pass the tunnel range span\ncheck. The VLAN subtraction produces a negative int, which is converted\nto unsigned when compared with the u32 tunnel ID subtraction. It can\ntherefore equal the wrapped tunnel ID delta.\n\nThe range loop then performs no iterations. Since the batched\nnotification handling added a post-loop error check, this leaves err\nuninitialized and makes the request's return value unpredictable.\n\nReject descending VLAN ranges before comparing the spans. Valid\nascending and single-entry ranges remain unchanged, while malformed\ndescending ranges consistently return -EINVAL.\n\nThis issue was found by a static analysis checker and confirmed by\nmanual source review.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-09-17 17:17:03","updated_at":"2026-09-17 17:17:03"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/4b0f5b25f114651f03058395b490626c4444875e","name":"https://git.kernel.org/stable/c/4b0f5b25f114651f03058395b490626c4444875e","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/bd741b819ff1c239d26cc5b0f0e6b1fd4e67ed17","name":"https://git.kernel.org/stable/c/bd741b819ff1c239d26cc5b0f0e6b1fd4e67ed17","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/c0444d7499f113d6b7803ef0175591464e17525e","name":"https://git.kernel.org/stable/c/c0444d7499f113d6b7803ef0175591464e17525e","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/b74a072d8fb71d3c9ffba4a17d5943e63266fb38","name":"https://git.kernel.org/stable/c/b74a072d8fb71d3c9ffba4a17d5943e63266fb38","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/434849b21ef56b09d16e6366b2a230002f363e45","name":"https://git.kernel.org/stable/c/434849b21ef56b09d16e6366b2a230002f363e45","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/0874a6d5275091429ec4c675c54c53a8776665ae","name":"https://git.kernel.org/stable/c/0874a6d5275091429ec4c675c54c53a8776665ae","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/5a8e0e3a18b5e3172343b8479c5d04187f5b4795","name":"https://git.kernel.org/stable/c/5a8e0e3a18b5e3172343b8479c5d04187f5b4795","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/1181f6bad009408a259bab6aaf0681f11b487972","name":"https://git.kernel.org/stable/c/1181f6bad009408a259bab6aaf0681f11b487972","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-90114","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-90114","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 94339443686b36d3223bc032b7947267474e2679 1181f6bad009408a259bab6aaf0681f11b487972 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 94339443686b36d3223bc032b7947267474e2679 5a8e0e3a18b5e3172343b8479c5d04187f5b4795 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 94339443686b36d3223bc032b7947267474e2679 0874a6d5275091429ec4c675c54c53a8776665ae git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 94339443686b36d3223bc032b7947267474e2679 4b0f5b25f114651f03058395b490626c4444875e git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 94339443686b36d3223bc032b7947267474e2679 bd741b819ff1c239d26cc5b0f0e6b1fd4e67ed17 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 94339443686b36d3223bc032b7947267474e2679 c0444d7499f113d6b7803ef0175591464e17525e git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 94339443686b36d3223bc032b7947267474e2679 434849b21ef56b09d16e6366b2a230002f363e45 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 94339443686b36d3223bc032b7947267474e2679 b74a072d8fb71d3c9ffba4a17d5943e63266fb38 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 5.9","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.9 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.10.270 5.10.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.15.221 5.15.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.1.188 6.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.6.157 6.6.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.110 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.52 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.2.6 7.2.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.3-rc1 * 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":["net/bridge/br_netlink_tunnel.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"1181f6bad009408a259bab6aaf0681f11b487972","status":"affected","version":"94339443686b36d3223bc032b7947267474e2679","versionType":"git"},{"lessThan":"5a8e0e3a18b5e3172343b8479c5d04187f5b4795","status":"affected","version":"94339443686b36d3223bc032b7947267474e2679","versionType":"git"},{"lessThan":"0874a6d5275091429ec4c675c54c53a8776665ae","status":"affected","version":"94339443686b36d3223bc032b7947267474e2679","versionType":"git"},{"lessThan":"4b0f5b25f114651f03058395b490626c4444875e","status":"affected","version":"94339443686b36d3223bc032b7947267474e2679","versionType":"git"},{"lessThan":"bd741b819ff1c239d26cc5b0f0e6b1fd4e67ed17","status":"affected","version":"94339443686b36d3223bc032b7947267474e2679","versionType":"git"},{"lessThan":"c0444d7499f113d6b7803ef0175591464e17525e","status":"affected","version":"94339443686b36d3223bc032b7947267474e2679","versionType":"git"},{"lessThan":"434849b21ef56b09d16e6366b2a230002f363e45","status":"affected","version":"94339443686b36d3223bc032b7947267474e2679","versionType":"git"},{"lessThan":"b74a072d8fb71d3c9ffba4a17d5943e63266fb38","status":"affected","version":"94339443686b36d3223bc032b7947267474e2679","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["net/bridge/br_netlink_tunnel.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"5.9"},{"lessThan":"5.9","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.270","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.221","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.188","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.157","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.110","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.52","versionType":"semver"},{"lessThanOrEqual":"7.2.*","status":"unaffected","version":"7.2.6","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.3-rc1","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.10.270","versionStartIncluding":"5.9","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.15.221","versionStartIncluding":"5.9","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.1.188","versionStartIncluding":"5.9","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.6.157","versionStartIncluding":"5.9","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.110","versionStartIncluding":"5.9","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.52","versionStartIncluding":"5.9","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.2.6","versionStartIncluding":"5.9","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.3-rc1","versionStartIncluding":"5.9","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: bridge: Reject descending VLAN tunnel ranges\n\nA pair of descending VLAN and tunnel IDs can pass the tunnel range span\ncheck. The VLAN subtraction produces a negative int, which is converted\nto unsigned when compared with the u32 tunnel ID subtraction. It can\ntherefore equal the wrapped tunnel ID delta.\n\nThe range loop then performs no iterations. Since the batched\nnotification handling added a post-loop error check, this leaves err\nuninitialized and makes the request's return value unpredictable.\n\nReject descending VLAN ranges before comparing the spans. Valid\nascending and single-entry ranges remain unchanged, while malformed\ndescending ranges consistently return -EINVAL.\n\nThis issue was found by a static analysis checker and confirmed by\nmanual source review."}],"providerMetadata":{"dateUpdated":"2026-09-17T16:06:20.741Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/1181f6bad009408a259bab6aaf0681f11b487972"},{"url":"https://git.kernel.org/stable/c/5a8e0e3a18b5e3172343b8479c5d04187f5b4795"},{"url":"https://git.kernel.org/stable/c/0874a6d5275091429ec4c675c54c53a8776665ae"},{"url":"https://git.kernel.org/stable/c/4b0f5b25f114651f03058395b490626c4444875e"},{"url":"https://git.kernel.org/stable/c/bd741b819ff1c239d26cc5b0f0e6b1fd4e67ed17"},{"url":"https://git.kernel.org/stable/c/c0444d7499f113d6b7803ef0175591464e17525e"},{"url":"https://git.kernel.org/stable/c/434849b21ef56b09d16e6366b2a230002f363e45"},{"url":"https://git.kernel.org/stable/c/b74a072d8fb71d3c9ffba4a17d5943e63266fb38"}],"title":"net: bridge: Reject descending VLAN tunnel ranges","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-90114","datePublished":"2026-09-17T16:06:20.741Z","dateReserved":"2026-09-11T19:38:34.787Z","dateUpdated":"2026-09-17T16:06:20.741Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-09-17 17:17:03","lastModifiedDate":"2026-09-17 17:17:03","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"90114","Ordinal":"1","Title":"net: bridge: Reject descending VLAN tunnel ranges","CVE":"CVE-2026-90114","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"90114","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: bridge: Reject descending VLAN tunnel ranges\n\nA pair of descending VLAN and tunnel IDs can pass the tunnel range span\ncheck. The VLAN subtraction produces a negative int, which is converted\nto unsigned when compared with the u32 tunnel ID subtraction. It can\ntherefore equal the wrapped tunnel ID delta.\n\nThe range loop then performs no iterations. Since the batched\nnotification handling added a post-loop error check, this leaves err\nuninitialized and makes the request's return value unpredictable.\n\nReject descending VLAN ranges before comparing the spans. Valid\nascending and single-entry ranges remain unchanged, while malformed\ndescending ranges consistently return -EINVAL.\n\nThis issue was found by a static analysis checker and confirmed by\nmanual source review.","Type":"Description","Title":"net: bridge: Reject descending VLAN tunnel ranges"}]}}}