CVE-2026-23215 x86/vmware: Fix hypercall clobbers

In the Linux kernel, the following vulnerability has been resolved: x86/vmware: Fix hypercall clobbers Fedora QA reported the following panic: BUG: unable to handle page fault for address: 0000000040003e54 PF: supervisor write access in kernel mode PF: errorcode0x0002 - not-present page Hardware...

CVE-2026-23215

CVE-2026-23215 affects the Linux kernel’s x86/vmware code. The issue arises from buggy QEMU VMware mouse emulation that clobbers the top 32 bits of the RDI/RSI state across hypercalls, causing page faults when dereferencing a saved kernel stack address. The kernel workaround marks RDI/RSI as clob...