unicore32: use simpler API for random address requests
Currently, all callers to randomize_range() set the length to 0 and calculate end by adding a constant to the start address. We can simplify the API to remove a bunch of needless checks and variables. Use the new randomize_addr(start, range) call to set the requested address. Link: http://lkml.kernel.org/r/20160803233913.32511-7-jason@lakedaemon.net Signed-off-by: Jason Cooper <jason@lakedaemon.net> Acked-by: Kees Cook <keescook@chromium.org> Cc: "Theodore Ts'o" <tytso@mit.edu> Cc: Guan Xuetao <gxt@mprc.pku.edu.cn> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
parent
09fddbaf90
commit
05c2679e95
1 changed files with 1 additions and 2 deletions
|
@ -295,8 +295,7 @@ unsigned long get_wchan(struct task_struct *p)
|
||||||
|
|
||||||
unsigned long arch_randomize_brk(struct mm_struct *mm)
|
unsigned long arch_randomize_brk(struct mm_struct *mm)
|
||||||
{
|
{
|
||||||
unsigned long range_end = mm->brk + 0x02000000;
|
return randomize_page(mm->brk, 0x02000000);
|
||||||
return randomize_range(mm->brk, range_end, 0) ? : mm->brk;
|
|
||||||
}
|
}
|
||||||
|
|
||||||
/*
|
/*
|
||||||
|
|
Loading…
Reference in a new issue