This is a note to let you know that I've just added the patch titled
drm/shme-helpers: Fix dma_buf_mmap forwarding bug
to the 5.9-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
On Wed, Oct 28, 2020 at 09:44:15AM +0100, Boris Brezillon wrote:
> On Tue, 27 Oct 2020 22:49:22 +0100
> Daniel Vetter wrote:
>
> > When we forward an mmap to the dma_buf exporter, they get to own
> > everything. Unfortunately drm_gem_mmap_obj() overwrote
> > vma->vm_private_data after the driver
Am 27.10.20 um 22:49 schrieb Daniel Vetter:
When we forward an mmap to the dma_buf exporter, they get to own
everything. Unfortunately drm_gem_mmap_obj() overwrote
vma->vm_private_data after the driver callback, wreaking the
exporter complete. This was noticed because vb2_common_vm_close blew
up
On Tue, 27 Oct 2020 22:49:22 +0100
Daniel Vetter wrote:
> When we forward an mmap to the dma_buf exporter, they get to own
> everything. Unfortunately drm_gem_mmap_obj() overwrote
> vma->vm_private_data after the driver callback, wreaking the
> exporter complete. This was noticed because
When we forward an mmap to the dma_buf exporter, they get to own
everything. Unfortunately drm_gem_mmap_obj() overwrote
vma->vm_private_data after the driver callback, wreaking the
exporter complete. This was noticed because vb2_common_vm_close blew
up on mali gpu with panfrost after commit
