{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-98186","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2026-09-25T10:25:14.323Z","datePublished":"2026-10-06T08:44:28.429Z","dateUpdated":"2026-10-06T08:44:28.429Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-10-06T08:44:28.429Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mwifiex: bound the pairwise-cipher OUI walk to the IE length\n\nmwifiex_search_oui_in_ie() reads a pairwise-cipher (PTK) count from a\nbeacon/probe-response RSN or WPA information element and then walks that\nmany 4-byte OUIs, comparing each with memcmp(). The count comes straight\nfrom the (attacker-supplied) IE and is never checked against the\nelement's own length, and the callers admit the element on element_id\nalone (has_ieee_hdr() / has_vendor_hdr(), no length check). A crafted\nRSN/WPA IE with a large pairwise count therefore makes the walk read up\nto 255 * 4 bytes past the element -- an out-of-bounds read of the\nkmemdup()'d beacon buffer, reachable from any AP whose beacon/probe\nresponse is processed during scan-result parsing.\n\nPass the number of IE bytes available at the OUI list and bound the walk\nto the element. Keep the length signed and reject a negative value\nbefore any unsigned arithmetic, so a small or zero IE length cannot\nunderflow to a large size_t and defeat the bound.\n\nFound by 0sec automated security-research tooling (https://0sec.ai)."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/wireless/marvell/mwifiex/scan.c"],"versions":[{"version":"5e6e3a92b9a4c9416b17f468fa5c7fa2233b8b4e","lessThan":"77e642af7f2f6029e12a35c847c56cbd0466e799","status":"affected","versionType":"git"},{"version":"5e6e3a92b9a4c9416b17f468fa5c7fa2233b8b4e","lessThan":"982b8fcdbb28f63bbbf02f0822c0bbda12ec27ed","status":"affected","versionType":"git"},{"version":"5e6e3a92b9a4c9416b17f468fa5c7fa2233b8b4e","lessThan":"58767b41f87244eebaa5a475b9d276c83b89b933","status":"affected","versionType":"git"},{"version":"5e6e3a92b9a4c9416b17f468fa5c7fa2233b8b4e","lessThan":"2402c9e2644b7e10c7aaaf87bf12743d7e363559","status":"affected","versionType":"git"},{"version":"5e6e3a92b9a4c9416b17f468fa5c7fa2233b8b4e","lessThan":"54a9cc5bd70b0d77a5069d4c46998c679a10c857","status":"affected","versionType":"git"},{"version":"5e6e3a92b9a4c9416b17f468fa5c7fa2233b8b4e","lessThan":"8bbef2b1ebfbadc0b9c37bbbf9c9e26fe2e41960","status":"affected","versionType":"git"},{"version":"5e6e3a92b9a4c9416b17f468fa5c7fa2233b8b4e","lessThan":"46cda9d42f0d6ec3057d878ddb1f38c0ab9f51df","status":"affected","versionType":"git"},{"version":"5e6e3a92b9a4c9416b17f468fa5c7fa2233b8b4e","lessThan":"e667aee1c192d67d27c803007bfa9c6e0873e959","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/wireless/marvell/mwifiex/scan.c"],"versions":[{"version":"3.0","status":"affected"},{"version":"0","lessThan":"3.0","status":"unaffected","versionType":"semver"},{"version":"5.10.271","lessThanOrEqual":"5.10.*","status":"unaffected","versionType":"semver"},{"version":"5.15.222","lessThanOrEqual":"5.15.*","status":"unaffected","versionType":"semver"},{"version":"6.1.189","lessThanOrEqual":"6.1.*","status":"unaffected","versionType":"semver"},{"version":"6.6.158","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.12.112","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.18.54","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"7.2.8","lessThanOrEqual":"7.2.*","status":"unaffected","versionType":"semver"},{"version":"7.3-rc4","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.0","versionEndExcluding":"5.10.271"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.0","versionEndExcluding":"5.15.222"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.0","versionEndExcluding":"6.1.189"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.0","versionEndExcluding":"6.6.158"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.0","versionEndExcluding":"6.12.112"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.0","versionEndExcluding":"6.18.54"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.0","versionEndExcluding":"7.2.8"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.0","versionEndExcluding":"7.3-rc4"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/77e642af7f2f6029e12a35c847c56cbd0466e799"},{"url":"https://git.kernel.org/stable/c/982b8fcdbb28f63bbbf02f0822c0bbda12ec27ed"},{"url":"https://git.kernel.org/stable/c/58767b41f87244eebaa5a475b9d276c83b89b933"},{"url":"https://git.kernel.org/stable/c/2402c9e2644b7e10c7aaaf87bf12743d7e363559"},{"url":"https://git.kernel.org/stable/c/54a9cc5bd70b0d77a5069d4c46998c679a10c857"},{"url":"https://git.kernel.org/stable/c/8bbef2b1ebfbadc0b9c37bbbf9c9e26fe2e41960"},{"url":"https://git.kernel.org/stable/c/46cda9d42f0d6ec3057d878ddb1f38c0ab9f51df"},{"url":"https://git.kernel.org/stable/c/e667aee1c192d67d27c803007bfa9c6e0873e959"}],"title":"wifi: mwifiex: bound the pairwise-cipher OUI walk to the IE length","x_generator":{"engine":"bippy-1.2.0"}}}}