{"schema":"threatline.record/2","record":{"id":"CVE-2026-98218","aliases":[],"summary":"i2c: atr: fix dangling adapter pointer on add failure","details":"In the Linux kernel, the following vulnerability has been resolved:\n\ni2c: atr: fix dangling adapter pointer on add failure\n\ni2c_atr_add_adapter() stores atr->adapter[chan_id] before\ni2c_add_adapter() so that the I2C bus notifier can match child clients\nduring registration. On failure the channel is freed but the slot was\nleft pointing at freed memory, which can lead to use-after-free in\ni2c_atr_del_adapter() / cleanup and also block reuse with -EEXIST.\n\nClear the slot on the i2c_add_adapter() error path before freeing chan.","categories":["Operating systems"],"product":"Linux","vendor":"Linux","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98218","source_modified_at":"2026-10-19T09:15:49.004Z","fetched_at":"2026-10-23T18:45:31.882637Z","product":"Linux","vendor":"Linux","versions":[{"version":"a076a860acae77bbdcbd316541e5552e81fb1772","lessThan":"2f5e42edbd232bf705dc5d3a91e06344237e63bb","status":"affected","versionType":"git"},{"version":"a076a860acae77bbdcbd316541e5552e81fb1772","lessThan":"1093835f6aef58a831298d93e0d93f244fa07b84","status":"affected","versionType":"git"},{"version":"a076a860acae77bbdcbd316541e5552e81fb1772","lessThan":"eabf7a3d33cd9fad106d267d00cc842434de8e02","status":"affected","versionType":"git"},{"version":"a076a860acae77bbdcbd316541e5552e81fb1772","lessThan":"a57d9592714506556e30188af72dd3bdb9f647b5","status":"affected","versionType":"git"},{"version":"a076a860acae77bbdcbd316541e5552e81fb1772","lessThan":"ad34235808b63a70ca4989b7a2852923193d06ef","status":"affected","versionType":"git"}],"defaultStatus":"unaffected"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98218","source_modified_at":"2026-10-19T09:15:49.004Z","fetched_at":"2026-10-23T18:45:31.882637Z","product":"Linux","vendor":"Linux","versions":[{"version":"6.6","status":"affected"},{"version":"0","lessThan":"6.6","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","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}],"defaultStatus":"affected"}],"fixed_versions":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98218","source_modified_at":"2026-10-19T09:15:49.004Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"Linux","ecosystem":null},"version":"2f5e42edbd232bf705dc5d3a91e06344237e63bb","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98218","source_modified_at":"2026-10-19T09:15:49.004Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"Linux","ecosystem":null},"version":"1093835f6aef58a831298d93e0d93f244fa07b84","basis":"first unaffected version stated in the CVE record"}],"cvss":null,"severity":null,"kev":{"listed":false},"epss":{"probability":0.00175,"percentile":0.06669,"score_date":"2026-10-23"},"published_at":"2026-10-06T08:44:54.034Z","modified_at":"2026-10-19T09:15:49.004Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-98218","fetched_at":"2026-10-23T18:45:31.882637Z","source_modified_at":"2026-10-19T09:15:49.004Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-98218","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/2f5e42edbd232bf705dc5d3a91e06344237e63bb"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/1093835f6aef58a831298d93e0d93f244fa07b84"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/eabf7a3d33cd9fad106d267d00cc842434de8e02"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/a57d9592714506556e30188af72dd3bdb9f647b5"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/ad34235808b63a70ca4989b7a2852923193d06ef"}],"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":"2026-10-19T09:15:49.004Z","content_hash":"85d2594479cba064b60b98bc8cc9e78450268835c56d6228a79b924ca94dc1ae"}}