CVE-2024-41070 is a use-after-free vulnerability in the Linux kernel's KVM PPC Book3S HV code, specifically in the function kvm_spapr_tce_attach_iommu_group(). The flaw occurs because the function uses a pointer after releasing a file descriptor, which can lead to the pointer being freed by another thread. This vulnerability has been fixed by deferring the release of the file descriptor until the pointer is no longer in use.