{"api_version":"1","generated_at":"2026-08-14T04:35:39+00:00","cve":"CVE-2026-68197","urls":{"html":"https://cve.report/CVE-2026-68197","api":"https://cve.report/api/cve/CVE-2026-68197.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-68197","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-68197"},"summary":{"title":"wifi: mwifiex: fix NULL dereference when the AP has HT-cap but no HT-oper","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mwifiex: fix NULL dereference when the AP has HT-cap but no HT-oper\n\nmwifiex_tdls_add_ht_oper() gates its follow-the-AP-bandwidth path on\nbss_desc->bcn_ht_cap being present, but then dereferences a different\npointer, bss_desc->bcn_ht_oper:\n\n\tif (ISSUPP_CHANWIDTH40(priv->adapter->hw_dot_11n_dev_cap) &&\n\t    bss_desc->bcn_ht_cap &&\n\t    ISALLOWED_CHANWIDTH40(bss_desc->bcn_ht_oper->ht_param))\n\nbcn_ht_cap and bcn_ht_oper are populated independently while parsing the\nassociated AP's beacon in mwifiex_update_bss_desc_with_ie(): an AP that\nadvertises an HT Capabilities element but no HT Operation element leaves\nbcn_ht_cap non-NULL and bcn_ht_oper NULL. Setting up a TDLS link to a\npeer while associated to such an AP then dereferences the NULL\nbcn_ht_oper and crashes the kernel. Every other bcn_ht_oper user in the\ndriver NULL-checks it first.\n\nGuard on the pointer that is actually dereferenced.\n\nFound by 0sec automated security-research tooling (https://0sec.ai).","state":"PUBLISHED","assigner":"Linux","published_at":"2026-08-10 13:20:07","updated_at":"2026-08-10 13:20:07"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/45011e4d9ba3f2182e5df64be65888044fa20771","name":"https://git.kernel.org/stable/c/45011e4d9ba3f2182e5df64be65888044fa20771","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/c3d68e294cbb6a4090bb219d3dcaca85a011809b","name":"https://git.kernel.org/stable/c/c3d68e294cbb6a4090bb219d3dcaca85a011809b","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/eb42c3c8fd479166c42984728754cd779c71fd60","name":"https://git.kernel.org/stable/c/eb42c3c8fd479166c42984728754cd779c71fd60","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/9375a4ea4121625ef27a46b74781cda66a5cc61b","name":"https://git.kernel.org/stable/c/9375a4ea4121625ef27a46b74781cda66a5cc61b","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/cca4398aa305c22016d1714f388e2fa6ea4e5ad4","name":"https://git.kernel.org/stable/c/cca4398aa305c22016d1714f388e2fa6ea4e5ad4","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-68197","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-68197","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 396939f94084d5923d558e9f22db48bc51156e47 eb42c3c8fd479166c42984728754cd779c71fd60 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 396939f94084d5923d558e9f22db48bc51156e47 45011e4d9ba3f2182e5df64be65888044fa20771 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 396939f94084d5923d558e9f22db48bc51156e47 9375a4ea4121625ef27a46b74781cda66a5cc61b git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 396939f94084d5923d558e9f22db48bc51156e47 cca4398aa305c22016d1714f388e2fa6ea4e5ad4 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 396939f94084d5923d558e9f22db48bc51156e47 c3d68e294cbb6a4090bb219d3dcaca85a011809b git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 3.16","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 3.16 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.6.148 6.6.* 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/marvell/mwifiex/tdls.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"eb42c3c8fd479166c42984728754cd779c71fd60","status":"affected","version":"396939f94084d5923d558e9f22db48bc51156e47","versionType":"git"},{"lessThan":"45011e4d9ba3f2182e5df64be65888044fa20771","status":"affected","version":"396939f94084d5923d558e9f22db48bc51156e47","versionType":"git"},{"lessThan":"9375a4ea4121625ef27a46b74781cda66a5cc61b","status":"affected","version":"396939f94084d5923d558e9f22db48bc51156e47","versionType":"git"},{"lessThan":"cca4398aa305c22016d1714f388e2fa6ea4e5ad4","status":"affected","version":"396939f94084d5923d558e9f22db48bc51156e47","versionType":"git"},{"lessThan":"c3d68e294cbb6a4090bb219d3dcaca85a011809b","status":"affected","version":"396939f94084d5923d558e9f22db48bc51156e47","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/net/wireless/marvell/mwifiex/tdls.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"3.16"},{"lessThan":"3.16","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.148","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":"6.6.148","versionStartIncluding":"3.16","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.101","versionStartIncluding":"3.16","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.42","versionStartIncluding":"3.16","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.1.6","versionStartIncluding":"3.16","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.2-rc5","versionStartIncluding":"3.16","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mwifiex: fix NULL dereference when the AP has HT-cap but no HT-oper\n\nmwifiex_tdls_add_ht_oper() gates its follow-the-AP-bandwidth path on\nbss_desc->bcn_ht_cap being present, but then dereferences a different\npointer, bss_desc->bcn_ht_oper:\n\n\tif (ISSUPP_CHANWIDTH40(priv->adapter->hw_dot_11n_dev_cap) &&\n\t    bss_desc->bcn_ht_cap &&\n\t    ISALLOWED_CHANWIDTH40(bss_desc->bcn_ht_oper->ht_param))\n\nbcn_ht_cap and bcn_ht_oper are populated independently while parsing the\nassociated AP's beacon in mwifiex_update_bss_desc_with_ie(): an AP that\nadvertises an HT Capabilities element but no HT Operation element leaves\nbcn_ht_cap non-NULL and bcn_ht_oper NULL. Setting up a TDLS link to a\npeer while associated to such an AP then dereferences the NULL\nbcn_ht_oper and crashes the kernel. Every other bcn_ht_oper user in the\ndriver NULL-checks it first.\n\nGuard on the pointer that is actually dereferenced.\n\nFound by 0sec automated security-research tooling (https://0sec.ai)."}],"providerMetadata":{"dateUpdated":"2026-08-10T12:00:15.750Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/eb42c3c8fd479166c42984728754cd779c71fd60"},{"url":"https://git.kernel.org/stable/c/45011e4d9ba3f2182e5df64be65888044fa20771"},{"url":"https://git.kernel.org/stable/c/9375a4ea4121625ef27a46b74781cda66a5cc61b"},{"url":"https://git.kernel.org/stable/c/cca4398aa305c22016d1714f388e2fa6ea4e5ad4"},{"url":"https://git.kernel.org/stable/c/c3d68e294cbb6a4090bb219d3dcaca85a011809b"}],"title":"wifi: mwifiex: fix NULL dereference when the AP has HT-cap but no HT-oper","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-68197","datePublished":"2026-08-10T12:00:15.750Z","dateReserved":"2026-07-30T09:28:09.374Z","dateUpdated":"2026-08-10T12:00:15.750Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-08-10 13:20:07","lastModifiedDate":"2026-08-10 13:20:07","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"68197","Ordinal":"1","Title":"wifi: mwifiex: fix NULL dereference when the AP has HT-cap but n","CVE":"CVE-2026-68197","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"68197","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mwifiex: fix NULL dereference when the AP has HT-cap but no HT-oper\n\nmwifiex_tdls_add_ht_oper() gates its follow-the-AP-bandwidth path on\nbss_desc->bcn_ht_cap being present, but then dereferences a different\npointer, bss_desc->bcn_ht_oper:\n\n\tif (ISSUPP_CHANWIDTH40(priv->adapter->hw_dot_11n_dev_cap) &&\n\t    bss_desc->bcn_ht_cap &&\n\t    ISALLOWED_CHANWIDTH40(bss_desc->bcn_ht_oper->ht_param))\n\nbcn_ht_cap and bcn_ht_oper are populated independently while parsing the\nassociated AP's beacon in mwifiex_update_bss_desc_with_ie(): an AP that\nadvertises an HT Capabilities element but no HT Operation element leaves\nbcn_ht_cap non-NULL and bcn_ht_oper NULL. Setting up a TDLS link to a\npeer while associated to such an AP then dereferences the NULL\nbcn_ht_oper and crashes the kernel. Every other bcn_ht_oper user in the\ndriver NULL-checks it first.\n\nGuard on the pointer that is actually dereferenced.\n\nFound by 0sec automated security-research tooling (https://0sec.ai).","Type":"Description","Title":"wifi: mwifiex: fix NULL dereference when the AP has HT-cap but n"}]}}}