Answer in brief
CVE-2026-98469 records a High severity (CVSS 7.1) vulnerability in KVM: arm64: Fix AArch32 DBGBXVR<n> handling. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 7.1. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=3ce9f3357e9e099f02feaa002769eb99ef1138cd <8530a05b304d312fe7dfbc5df7d3e87cc31b256a || >=3ce9f3357e9e099f02feaa002769eb99ef1138cd <af6813d16ace2765011ca1c567be86ade1d1ee8e || >=3ce9f3357e9e099f02feaa002769eb99ef1138cd <6b1bca1b1ab77f60a62087337bfe6e2f0efb9e6d | 8530a05b304d312fe7dfbc5df7d3e87cc31b256a, af6813d16ace2765011ca1c567be86ade1d1ee8e, 6b1bca1b1ab77f60a62087337bfe6e2f0efb9e6d |
| Linux/Linuxgeneric | 6.14 | Not reported |
Published upstream
Oct 18, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 24, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Oct 18, 2026
In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: Fix AArch32 DBGBXVR<n> handling The consolidation of the breakpoint and watchpoint register accessors switched DBGBXVR<n> from trap_bvr() to trap_dbg_wb_reg(). The latter selects backing storage with demux_wb_reg(), which only handles Op2 values 4 through 7. Since DBGBXVR<n> uses Op2 1, an AArch32 guest access hits KVM_BUG_ON() and marks the VM dead. DBGBXVR<n> aliases DBGBVR<n>_EL1[63:32], and its AA32(HI) descriptor already selects the upper half. Map Op2 1 to dbg_bvr[] alongside Op2 4, restoring the pre-regression behavior.
Quoted source text, attributed separately from HOL analysis.