diff options
Diffstat (limited to 'drivers/iommu/amd_iommu_v2.c')
| -rw-r--r-- | drivers/iommu/amd_iommu_v2.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/iommu/amd_iommu_v2.c b/drivers/iommu/amd_iommu_v2.c index 1131664b918b..d21d4edf7236 100644 --- a/drivers/iommu/amd_iommu_v2.c +++ b/drivers/iommu/amd_iommu_v2.c @@ -516,6 +516,13 @@ static void do_fault(struct work_struct *work) goto out; } + if (!(vma->vm_flags & (VM_READ | VM_EXEC | VM_WRITE))) { + /* handle_mm_fault would BUG_ON() */ + up_read(&mm->mmap_sem); + handle_fault_error(fault); + goto out; + } + ret = handle_mm_fault(mm, vma, address, write); if (ret & VM_FAULT_ERROR) { /* failed to service fault */ |