Hi Felix,
Submitted v3 to fix the potential problems with invalid userptr.
Philip
On 2019-03-12 3:30 p.m., Kuehling, Felix wrote:
> See one comment inline. There are still some potential problems that
> you're not catching.
>
> On 2019-03-06 9:42 p.m., Yang, Philip wrote:
>> userptr may cross t
See one comment inline. There are still some potential problems that
you're not catching.
On 2019-03-06 9:42 p.m., Yang, Philip wrote:
> userptr may cross two VMAs if the forked child process (not call exec
> after fork) malloc buffer, then free it, and then malloc larger size
> buf, kerenl will
userptr may cross two VMAs if the forked child process (not call exec
after fork) malloc buffer, then free it, and then malloc larger size
buf, kerenl will create new VMA adjacent to old VMA which was cloned
from parent process, some pages of userptr are in the first VMA, the
rest pages are in the
