CVE-2026-43214
MediumSummary
A vulnerability in the Linux kernel has been resolved related to the lack of SRCU protection when reading PDPTR registers in the __get_sregs2() function. Reading these registers may lead to unauthorized access to guest memory.
Risk Assessment
Organizations may be exposed to unauthorized access to virtual machine memory, potentially leading to data leaks or system integrity breaches.
Recommendation
It is recommended to update the Linux kernel to the latest version to patch this vulnerability and ensure proper protection of guest memory.
Original NVD description (English source)
In the Linux kernel, the following vulnerability has been resolved: KVM: x86: Add SRCU protection for reading PDPTRs in __get_sregs2() Add SRCU read-side protection when reading PDPTR registers in __get_sregs2(). Reading PDPTRs may trigger access to guest memory: kvm_pdptr_read() -> svm_cache_reg