Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: iommu: Fix NULL group->domain dereference in pci_dev_reset_iommu_done() Local sashiko review pointed it out that group->domain could be NULL when a default domain fails to allocate during the first probe, which can crash at domain->ops->attach_dev dereference in __iommu_attach_device() invoked by pci_dev_reset_iommu_done(). pci_dev_reset_iommu_prepare() is fine as an old_domain pointer can be NULL. Skip the re-attach in pci_dev_reset_iommu_done() to fix the bug.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected c279e83953d937470f8a6e69b69f62608714f13f before 17194cd0dd236e732d116d50840d795ca50ef196; affected c279e83953d937470f8a6e69b69f62608714f13f before d769711fcddd005f1e654b3bde547140917fe696 |
| Linux / Linux | affected 7.0; unaffected 0 before 7.0; unaffected 7.0.10 through 7.0.*; unaffected 7.1 through * |
CWE
No CWE identifiers supplied.