CVE-2026-98469 KVM: arm64: Fix AArch32 DBGBXVR<n> handling

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: Fix AArch32 DBGBXVR handling The consolidation of the breakpoint and watchpoint register accessors switched DBGBXVR from trapbvr to trapdbgwbreg. The latter selects backing storage with demuxwbreg, which only handles...

CVE-2026-98469 KVM: arm64: Fix AArch32 DBGBXVR<n> handling

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: Fix AArch32 DBGBXVR handling The consolidation of the breakpoint and watchpoint register accessors switched DBGBXVR from trapbvr to trapdbgwbreg. The latter selects backing storage with demuxwbreg, which only handles...

CVE-2026-98469

The Linux kernel contains a regression in KVM regarding arm64 AArch32 DBGBXVR handling. The consolidation of breakpoint and watchpoint register accessors switched DBGBXVR to a function that only handles specific Op2 values (4 through 7). Because DBGBXVR utilizes Op2 1 , an AArch32 guest access tr...