diff options
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/x86/kernel/process_32.c | 7 | ||||
| -rw-r--r-- | arch/x86/kernel/process_64.c | 7 |
2 files changed, 14 insertions, 0 deletions
diff --git a/arch/x86/kernel/process_32.c b/arch/x86/kernel/process_32.c index a8cdd09ad53..631af167bc5 100644 --- a/arch/x86/kernel/process_32.c +++ b/arch/x86/kernel/process_32.c @@ -992,3 +992,10 @@ unsigned long arch_align_stack(unsigned long sp) sp -= get_random_int() % 8192; return sp & ~0xf; } + +unsigned long arch_randomize_brk(struct mm_struct *mm) +{ + unsigned long range_end = mm->brk + 0x02000000; + return randomize_range(mm->brk, range_end, 0) ? : mm->brk; +} + diff --git a/arch/x86/kernel/process_64.c b/arch/x86/kernel/process_64.c index 98d85952f57..aa9414ed74c 100644 --- a/arch/x86/kernel/process_64.c +++ b/arch/x86/kernel/process_64.c @@ -914,3 +914,10 @@ unsigned long arch_align_stack(unsigned long sp) sp -= get_random_int() % 8192; return sp & ~0xf; } + +unsigned long arch_randomize_brk(struct mm_struct *mm) +{ + unsigned long range_end = mm->brk + 0x02000000; + return randomize_range(mm->brk, range_end, 0) ? : mm->brk; +} + |