diff options
| author | Ralph Campbell <rcampbell@nvidia.com> | 2020-03-03 16:13:36 -0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-04-23 10:36:36 +0200 |
| commit | 2a40eaab1fc4a863849493f86010274a39966588 (patch) | |
| tree | a645cc0660ea8c119cdd634fce9e8a4908981237 /include/linux | |
| parent | f3955f1e58bec57ee2176aa81e6521461e977454 (diff) | |
drm/nouveau/svm: fix vma range check for migration
[ Upstream commit b92103b559c77abc5f8b7bec269230a219c880b7 ]
find_vma_intersection(mm, start, end) only guarantees that end is greater
than or equal to vma->vm_start but doesn't guarantee that start is
greater than or equal to vma->vm_start. The calculation for the
intersecting range in nouveau_svmm_bind() isn't accounting for this and
can call migrate_vma_setup() with a starting address less than
vma->vm_start. This results in migrate_vma_setup() returning -EINVAL for
the range instead of nouveau skipping that part of the range and migrating
the rest.
Signed-off-by: Ralph Campbell <rcampbell@nvidia.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'include/linux')
0 files changed, 0 insertions, 0 deletions