{"schema":"threatline.record/2","record":{"id":"CVE-2026-98469","aliases":[],"summary":"KVM: arm64: Fix AArch32 DBGBXVR<n> handling","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nKVM: arm64: Fix AArch32 DBGBXVR<n> handling\n\nThe consolidation of the breakpoint and watchpoint register accessors\nswitched DBGBXVR<n> from trap_bvr() to trap_dbg_wb_reg(). The latter\nselects backing storage with demux_wb_reg(), which only handles Op2 values\n4 through 7. Since DBGBXVR<n> uses Op2 1, an AArch32 guest access hits\nKVM_BUG_ON() and marks the VM dead.\n\nDBGBXVR<n> aliases DBGBVR<n>_EL1[63:32], and its AA32(HI) descriptor\nalready selects the upper half. Map Op2 1 to dbg_bvr[] alongside Op2 4,\nrestoring the pre-regression behavior.","categories":["Operating systems"],"product":"Linux","vendor":"Linux","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98469","source_modified_at":"2026-10-19T09:20:07.266Z","fetched_at":"2026-10-23T18:45:31.882637Z","product":"Linux","vendor":"Linux","versions":[{"version":"3ce9f3357e9e099f02feaa002769eb99ef1138cd","lessThan":"8530a05b304d312fe7dfbc5df7d3e87cc31b256a","status":"affected","versionType":"git"},{"version":"3ce9f3357e9e099f02feaa002769eb99ef1138cd","lessThan":"af6813d16ace2765011ca1c567be86ade1d1ee8e","status":"affected","versionType":"git"},{"version":"3ce9f3357e9e099f02feaa002769eb99ef1138cd","lessThan":"6b1bca1b1ab77f60a62087337bfe6e2f0efb9e6d","status":"affected","versionType":"git"}],"defaultStatus":"unaffected"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98469","source_modified_at":"2026-10-19T09:20:07.266Z","fetched_at":"2026-10-23T18:45:31.882637Z","product":"Linux","vendor":"Linux","versions":[{"version":"6.14","status":"affected"},{"version":"0","lessThan":"6.14","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-2026-98469","source_modified_at":"2026-10-19T09:20:07.266Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"Linux","ecosystem":null},"version":"8530a05b304d312fe7dfbc5df7d3e87cc31b256a","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98469","source_modified_at":"2026-10-19T09:20:07.266Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"Linux","ecosystem":null},"version":"6b1bca1b1ab77f60a62087337bfe6e2f0efb9e6d","basis":"first unaffected version stated in the CVE record"}],"cvss":null,"severity":null,"kev":{"listed":false},"epss":{"probability":0.00198,"percentile":0.09052,"score_date":"2026-10-23"},"published_at":"2026-10-18T15:15:22.065Z","modified_at":"2026-10-19T09:20:07.266Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-98469","fetched_at":"2026-10-23T18:45:31.882637Z","source_modified_at":"2026-10-19T09:20:07.266Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-98469","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/8530a05b304d312fe7dfbc5df7d3e87cc31b256a"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/af6813d16ace2765011ca1c567be86ade1d1ee8e"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/6b1bca1b1ab77f60a62087337bfe6e2f0efb9e6d"}],"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":"2026-10-19T09:20:07.266Z","content_hash":"960c49e18844d1ff572b0328864645e43e268b088f9a8576d46b1d57ca000f81"}}