On 12.03.22 09:31, Miaohe Lin wrote:
> Using vma_lookup() verifies the address is contained in the found vma.
> This results in easier to read the code.
>
> Signed-off-by: Miaohe Lin <linmiaohe@xxxxxxxxxx>
> ---
> mm/mremap.c | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/mm/mremap.c b/mm/mremap.c
> index 002eec83e91e..9d76da79594d 100644
> --- a/mm/mremap.c
> +++ b/mm/mremap.c
> @@ -942,8 +942,8 @@ SYSCALL_DEFINE5(mremap, unsigned long, addr, unsigned long, old_len,
>
> if (mmap_write_lock_killable(current->mm))
> return -EINTR;
> - vma = find_vma(mm, addr);
> - if (!vma || vma->vm_start > addr) {
> + vma = vma_lookup(mm, addr);
> + if (!vma) {
> ret = EFAULT;
> goto out;
> }
Reviewed-by: David Hildenbrand <david@xxxxxxxxxx>
--
Thanks,
David / dhildenb
