On 27/03/2018 23:57, David Rientjes wrote:
> On Tue, 13 Mar 2018, Laurent Dufour wrote:
>
>> diff --git a/mm/mmap.c b/mm/mmap.c
>> index 5898255d0aeb..d6533cb85213 100644
>> --- a/mm/mmap.c
>> +++ b/mm/mmap.c
>> @@ -847,17 +847,18 @@ int __vma_adjust(struct vm_area_struct *vma, unsigned
>>
On 27/03/2018 23:45, David Rientjes wrote:
> On Tue, 13 Mar 2018, Laurent Dufour wrote:
>
>> diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c
>> index 65ae54659833..a2d9c87b7b0b 100644
>> --- a/fs/proc/task_mmu.c
>> +++ b/fs/proc/task_mmu.c
>> @@ -1136,8 +1136,11 @@ static ssize_t
On Tue, 13 Mar 2018, Laurent Dufour wrote:
> diff --git a/mm/mmap.c b/mm/mmap.c
> index 5898255d0aeb..d6533cb85213 100644
> --- a/mm/mmap.c
> +++ b/mm/mmap.c
> @@ -847,17 +847,18 @@ int __vma_adjust(struct vm_area_struct *vma, unsigned
> long start,
> }
>
> if (start !=
On Tue, 13 Mar 2018, Laurent Dufour wrote:
> diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c
> index 65ae54659833..a2d9c87b7b0b 100644
> --- a/fs/proc/task_mmu.c
> +++ b/fs/proc/task_mmu.c
> @@ -1136,8 +1136,11 @@ static ssize_t clear_refs_write(struct file *file,
> const char __user *buf,
The VMA sequence count has been introduced to allow fast detection of
VMA modification when running a page fault handler without holding
the mmap_sem.
This patch provides protection against the VMA modification done in :
- madvise()
- mpol_rebind_policy()
-
