An issue was discovered in the Linux kernel 5.4 and 5.5 through 5.5.6 on the
AArch64 architecture. It ignores the top byte in the address passed to the
brk system call, potentially moving the memory break downwards when the
application expects it to move upwards, aka CID-dcde237319e6. This has been
observed to cause heap corruption with the GNU C Library malloc
This is for arm kernel.