The > should be >= so that we don't read one page beyond the end of the
obj->pages[] array.
Fixes: 559e50fd34d1 ("drm/vkms: Add dumb operations")
Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
diff --git a/drivers/gpu/drm/vkms/vkms_gem.c b/drivers/gpu/drm/vkms/vkms_gem.c
index c7e38368602b..2cca8c2f260f 100644
--- a/drivers/gpu/drm/vkms/vkms_gem.c
+++ b/drivers/gpu/drm/vkms/vkms_gem.c
@@ -55,7 +55,7 @@ int vkms_gem_fault(struct vm_fault *vmf)
page_offset = (vaddr - vma->vm_start) >> PAGE_SHIFT;
num_pages = DIV_ROUND_UP(obj->gem.size, PAGE_SIZE);
- if (page_offset > num_pages)
+ if (page_offset >= num_pages)
return VM_FAULT_SIGBUS;
ret = -ENOENT;
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