Design/Logic Flaw

The 1 sys32mremap function in arch/sparc64/kernel/syssparc32.c, the 2 sparcmmapcheck function in arch/sparc/kernel/syssparc.c, and the 3 sparc64mmapcheck function in arch/sparc64/kernel/syssparc.c, in the Linux kernel before 2.6.25.4, omit some virtual-address range aka span checks when the mrema...