{"schema":"threatline.record/2","record":{"id":"CVE-2026-98634","aliases":[],"summary":"scsi: sd_zbc: Reject disks with too many zones","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: sd_zbc: Reject disks with too many zones\n\nsd_zbc_read_zones() computes the number of zones with 64-bit arithmetic and\nstores the result in the unsigned int nr_zones field of struct\nzoned_disk_info, silently truncating counts that exceed 32 bits. The\ntruncated count is later used to size per-zone resources, while the device\nmay still report more zones than fit.\n\nMoreover, sd_zbc_report_zones() counts the reported zones with a signed int\nzone_idx, which overflows past INT_MAX. Reject devices reporting more than\nINT_MAX zones at scan time; such a device is not realistic for any medium\nthat exists today, and accepting it produces inconsistent zone bookkeeping.","categories":["Operating systems"],"product":"Linux","vendor":"Linux","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98634","source_modified_at":"2026-10-19T09:23:03.375Z","fetched_at":"2026-10-23T18:45:31.882637Z","product":"Linux","vendor":"Linux","versions":[{"version":"89d9475610771b5e5fe1879075f0fc9ba6e3755f","lessThan":"d8791ae55d85dfaeafa20ea48365482a0cc5a107","status":"affected","versionType":"git"},{"version":"89d9475610771b5e5fe1879075f0fc9ba6e3755f","lessThan":"0af16d8be3ec7ff28bb56a0da79c9aed66ac2c3b","status":"affected","versionType":"git"},{"version":"89d9475610771b5e5fe1879075f0fc9ba6e3755f","lessThan":"3ddf8383b54456f19fd73d3cebed81bd250c7388","status":"affected","versionType":"git"},{"version":"89d9475610771b5e5fe1879075f0fc9ba6e3755f","lessThan":"b6ec0f79745967c751c85df373062c8d15e45fc4","status":"affected","versionType":"git"}],"defaultStatus":"unaffected"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98634","source_modified_at":"2026-10-19T09:23:03.375Z","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":"6.12.112","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.18.55","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"7.2.9","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-2026-98634","source_modified_at":"2026-10-19T09:23:03.375Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"Linux","ecosystem":null},"version":"0af16d8be3ec7ff28bb56a0da79c9aed66ac2c3b","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98634","source_modified_at":"2026-10-19T09:23:03.375Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"Linux","ecosystem":null},"version":"3ddf8383b54456f19fd73d3cebed81bd250c7388","basis":"first unaffected version stated in the CVE record"}],"cvss":null,"severity":null,"kev":{"listed":false},"epss":{"probability":0.00168,"percentile":0.05715,"score_date":"2026-10-23"},"published_at":"2026-10-18T15:20:03.198Z","modified_at":"2026-10-19T09:23:03.375Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-98634","fetched_at":"2026-10-23T18:45:31.882637Z","source_modified_at":"2026-10-19T09:23:03.375Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-98634","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/d8791ae55d85dfaeafa20ea48365482a0cc5a107"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/0af16d8be3ec7ff28bb56a0da79c9aed66ac2c3b"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/3ddf8383b54456f19fd73d3cebed81bd250c7388"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/b6ec0f79745967c751c85df373062c8d15e45fc4"}],"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":"2026-10-19T09:23:03.375Z","content_hash":"d14959ed08645cb849eac03f760056b252263d77f349d643cd9553b06bb7d601"}}