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| author | Ralph Campbell <rcampbell@nvidia.com> | 2020-03-04 03:13:36 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-04-23 11:38:13 +0300 |
| commit | bca4d36a2a112a6eede285f029a743bb2d805fe3 (patch) | |
| tree | 1025de547cf7c7d9e86a1c2eb74421827b74092f /virt | |
| parent | ded30f112b5e835f7d2245a4d2f5b24618e3099c (diff) | |
| download | linux-bca4d36a2a112a6eede285f029a743bb2d805fe3.tar.xz | |
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 'virt')
0 files changed, 0 insertions, 0 deletions