CVE-2024-56761

The CVE-2024-56761 issue affects the Linux kernel’s x86/fred handling of WFE state during missing-ENDBRANCH #CPs. Indirect branches can set IBT to WAIT_FOR_ENDBRANCH, leaving WFE asserted across the boundary. When an inappropriate instruction is decoded with WFE set, a #CP fault can occur. The ad...

CVE-2024-56761: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: x86/fred: Clear WFE in missing-ENDBRANCH CPs An indirect branch instruction sets the CPU indirect branch tracker IBT into WAITFORENDBRANCH WFE state and WFE stays asserted across the instruction boundary. When the decoder finds a...