EUVD-2022-55137

In the Linux kernel, the following vulnerability has been resolved: powerpc: Fix virtaddrvalid for 64-bit Book3E & 32-bit mpe: On 64-bit Book3E vmalloc space starts at 0x8000000000000000. Because of the way pa works we have: pa0x8000000000000000 == 0, and therefore virttopfn0x8000000000000000 == ...