In the Linux kernel, the following vulnerability has been resolved: init/main.c: Fix potential staticcommandline memory overflow We allocate memory of size 'xlen + strlen(bootcommandline) + 1' for staticcommandline, but the strings copied into staticcommandline are extracommandline and commandline, rather than extracommandline and bootcommandline. When strlen(commandline) > strlen(bootcommandline), staticcommandline will overflow. This patch just recovers strlen(commandline) which was miss-consolidated with strlen(bootcommandline) in the commit f5c7310ac73e ("init/main: add checks for the return value of memblockalloc*()")