{"schema":"threatline.record/2","record":{"id":"CVE-2026-98698","aliases":[],"summary":"wifi: mac80211: handle empty FILS association request payload","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mac80211: handle empty FILS association request payload\n\nfils_encrypt_assoc_req() accepts a (Re)Association Request frame whose\nlast element is the FILS Session element.  crypt_len is then zero and\naes_siv_encrypt() is called with an empty plaintext.\n\nkmemdup() returns ZERO_SIZE_PTR for a zero-length allocation, so the\nunconditional sg_init_one() puts an invalid page into the scatterlist.\nWith CONFIG_DEBUG_SG this triggers a kernel BUG in sg_set_buf();\nwithout the debug check the bogus page is handed to the crypto backend.\n\nAES-SIV is defined for empty plaintext and the S2V result is then the\ncomplete output, so handle this case before the CTR step, which has\nnothing to encrypt.","categories":["Operating systems"],"product":"Linux","vendor":"Linux","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98698","source_modified_at":"2026-10-21T12:55:47.911Z","fetched_at":"2026-10-23T18:45:31.882637Z","product":"Linux","vendor":"Linux","versions":[{"version":"39404feee691a2dc524a629ed6eb5cfe5d8898d1","lessThan":"0b1e4a7eeb6a301ee33bd318982927cbdbae9f36","status":"affected","versionType":"git"},{"version":"39404feee691a2dc524a629ed6eb5cfe5d8898d1","lessThan":"2f5b62f6534d336a62fdb9e88b186dd70b4323ef","status":"affected","versionType":"git"},{"version":"39404feee691a2dc524a629ed6eb5cfe5d8898d1","lessThan":"452f1c9b76f7a122bbc4630b9691bda4809677c4","status":"affected","versionType":"git"},{"version":"39404feee691a2dc524a629ed6eb5cfe5d8898d1","lessThan":"20f939b0c151d1d28e6b62a76b2454fa6fe877f2","status":"affected","versionType":"git"},{"version":"39404feee691a2dc524a629ed6eb5cfe5d8898d1","lessThan":"5bfd4b0b40b79781d900cb2f7da0685070f53c67","status":"affected","versionType":"git"}],"defaultStatus":"unaffected"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98698","source_modified_at":"2026-10-21T12:55:47.911Z","fetched_at":"2026-10-23T18:45:31.882637Z","product":"Linux","vendor":"Linux","versions":[{"version":"4.10","status":"affected"},{"version":"0","lessThan":"4.10","status":"unaffected","versionType":"semver"},{"version":"6.6.160","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.12.113","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.18.56","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"7.2.10","lessThanOrEqual":"7.2.*","status":"unaffected","versionType":"semver"},{"version":"7.3","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}],"defaultStatus":"affected"}],"fixed_versions":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98698","source_modified_at":"2026-10-21T12:55:47.911Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"Linux","ecosystem":null},"version":"0b1e4a7eeb6a301ee33bd318982927cbdbae9f36","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98698","source_modified_at":"2026-10-21T12:55:47.911Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"Linux","ecosystem":null},"version":"2f5b62f6534d336a62fdb9e88b186dd70b4323ef","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98698","source_modified_at":"2026-10-21T12:55:47.911Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"Linux","ecosystem":null},"version":"452f1c9b76f7a122bbc4630b9691bda4809677c4","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98698","source_modified_at":"2026-10-21T12:55:47.911Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"Linux","ecosystem":null},"version":"20f939b0c151d1d28e6b62a76b2454fa6fe877f2","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98698","source_modified_at":"2026-10-21T12:55:47.911Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"Linux","ecosystem":null},"version":"5bfd4b0b40b79781d900cb2f7da0685070f53c67","basis":"first unaffected version stated in the CVE record"}],"cvss":null,"severity":null,"kev":{"listed":false},"epss":{"probability":0.00168,"percentile":0.0572,"score_date":"2026-10-23"},"published_at":"2026-10-18T15:46:23.363Z","modified_at":"2026-10-21T12:55:47.911Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-98698","fetched_at":"2026-10-23T18:45:31.882637Z","source_modified_at":"2026-10-21T12:55:47.911Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-98698","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CVE List","EPSS"],"references":[{"source":"CVE List","url":"https://git.kernel.org/stable/c/0b1e4a7eeb6a301ee33bd318982927cbdbae9f36"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/2f5b62f6534d336a62fdb9e88b186dd70b4323ef"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/452f1c9b76f7a122bbc4630b9691bda4809677c4"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/20f939b0c151d1d28e6b62a76b2454fa6fe877f2"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/5bfd4b0b40b79781d900cb2f7da0685070f53c67"}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":"product","confidence":"heuristic","reviewed":false},"change_timestamp":"2026-10-21T12:55:47.911Z","content_hash":"5e1d7b08b2aa5c8cf484cd8cc3288e5a924066827d6b134f1e4919f7d316d118"}}