CVE-2024-56368 ring-buffer: Fix overflow in __rb_map_vma

In the Linux kernel, the following vulnerability has been resolved: ring-buffer: Fix overflow in rbmapvma An overflow occurred when performing the following calculation: nrpages = nrsubbufs + 1 dumpstack lib/dumpstack.c:94 inline dumpstacklvl+0x116/0x1f0 lib/dumpstack.c:120 printaddressdescriptio...