{"api_version":"1","generated_at":"2026-10-21T14:16:55+00:00","cve":"CVE-2026-98830","urls":{"html":"https://cve.report/CVE-2026-98830","api":"https://cve.report/api/cve/CVE-2026-98830.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-98830","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-98830"},"summary":{"title":"wifi: wfx: validate MIB read length before copying to caller","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: wfx: validate MIB read length before copying to caller\n\nwfx_hif_read_mib() copies reply->length bytes from the firmware\nresponse into the caller-provided buffer without checking that\nreply->length does not exceed val_len. A firmware response with\na length field larger than expected overruns the caller buffer and\nreads past the end of the reply allocation.\n\nReplace the dead -ENOMEM check with an active validation that\nreply->length fits within val_len before the memcpy.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-10-18 16:17:37","updated_at":"2026-10-21 13:21:48"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/7acb36fd60a3e7b858f12e69a919c3609b281408","name":"https://git.kernel.org/stable/c/7acb36fd60a3e7b858f12e69a919c3609b281408","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/819d4c1323e2a9b7329021d5367aa01add22b5dc","name":"https://git.kernel.org/stable/c/819d4c1323e2a9b7329021d5367aa01add22b5dc","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/02886c18a340da59df57365f29009e1258bfe333","name":"https://git.kernel.org/stable/c/02886c18a340da59df57365f29009e1258bfe333","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/71d140099165de03128c00dd129f1eab21c6a3c4","name":"https://git.kernel.org/stable/c/71d140099165de03128c00dd129f1eab21c6a3c4","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/ce67ebe9d8629776ce38e6995ae72fb903c828db","name":"https://git.kernel.org/stable/c/ce67ebe9d8629776ce38e6995ae72fb903c828db","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-98830","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-98830","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected f95a29d40782f4f0052a692a822de3ba044b19ff 819d4c1323e2a9b7329021d5367aa01add22b5dc git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected f95a29d40782f4f0052a692a822de3ba044b19ff 02886c18a340da59df57365f29009e1258bfe333 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected f95a29d40782f4f0052a692a822de3ba044b19ff 71d140099165de03128c00dd129f1eab21c6a3c4 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected f95a29d40782f4f0052a692a822de3ba044b19ff 7acb36fd60a3e7b858f12e69a919c3609b281408 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected f95a29d40782f4f0052a692a822de3ba044b19ff ce67ebe9d8629776ce38e6995ae72fb903c828db git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 5.5","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.5 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.6.160 6.6.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.113 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.56 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.2.10 7.2.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.3 * 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/silabs/wfx/hif_tx.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"819d4c1323e2a9b7329021d5367aa01add22b5dc","status":"affected","version":"f95a29d40782f4f0052a692a822de3ba044b19ff","versionType":"git"},{"lessThan":"02886c18a340da59df57365f29009e1258bfe333","status":"affected","version":"f95a29d40782f4f0052a692a822de3ba044b19ff","versionType":"git"},{"lessThan":"71d140099165de03128c00dd129f1eab21c6a3c4","status":"affected","version":"f95a29d40782f4f0052a692a822de3ba044b19ff","versionType":"git"},{"lessThan":"7acb36fd60a3e7b858f12e69a919c3609b281408","status":"affected","version":"f95a29d40782f4f0052a692a822de3ba044b19ff","versionType":"git"},{"lessThan":"ce67ebe9d8629776ce38e6995ae72fb903c828db","status":"affected","version":"f95a29d40782f4f0052a692a822de3ba044b19ff","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/net/wireless/silabs/wfx/hif_tx.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"5.5"},{"lessThan":"5.5","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.160","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.113","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.56","versionType":"semver"},{"lessThanOrEqual":"7.2.*","status":"unaffected","version":"7.2.10","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.3","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.6.160","versionStartIncluding":"5.5","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.113","versionStartIncluding":"5.5","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.56","versionStartIncluding":"5.5","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.2.10","versionStartIncluding":"5.5","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.3","versionStartIncluding":"5.5","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: wfx: validate MIB read length before copying to caller\n\nwfx_hif_read_mib() copies reply->length bytes from the firmware\nresponse into the caller-provided buffer without checking that\nreply->length does not exceed val_len. A firmware response with\na length field larger than expected overruns the caller buffer and\nreads past the end of the reply allocation.\n\nReplace the dead -ENOMEM check with an active validation that\nreply->length fits within val_len before the memcpy."}],"providerMetadata":{"dateUpdated":"2026-10-21T12:57:17.057Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/819d4c1323e2a9b7329021d5367aa01add22b5dc"},{"url":"https://git.kernel.org/stable/c/02886c18a340da59df57365f29009e1258bfe333"},{"url":"https://git.kernel.org/stable/c/71d140099165de03128c00dd129f1eab21c6a3c4"},{"url":"https://git.kernel.org/stable/c/7acb36fd60a3e7b858f12e69a919c3609b281408"},{"url":"https://git.kernel.org/stable/c/ce67ebe9d8629776ce38e6995ae72fb903c828db"}],"title":"wifi: wfx: validate MIB read length before copying to caller","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-98830","datePublished":"2026-10-18T15:49:31.843Z","dateReserved":"2026-09-25T10:25:14.372Z","dateUpdated":"2026-10-21T12:57:17.057Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-10-18 16:17:37","lastModifiedDate":"2026-10-21 13:21:48","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"98830","Ordinal":"1","Title":"wifi: wfx: validate MIB read length before copying to caller","CVE":"CVE-2026-98830","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"98830","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: wfx: validate MIB read length before copying to caller\n\nwfx_hif_read_mib() copies reply->length bytes from the firmware\nresponse into the caller-provided buffer without checking that\nreply->length does not exceed val_len. A firmware response with\na length field larger than expected overruns the caller buffer and\nreads past the end of the reply allocation.\n\nReplace the dead -ENOMEM check with an active validation that\nreply->length fits within val_len before the memcpy.","Type":"Description","Title":"wifi: wfx: validate MIB read length before copying to caller"}]}}}