| commit | 956b56a984ddf10aa69b25318dc04430101beed6 | [log] [tgz] |
|---|---|---|
| author | Alex Williamson <alex.williamson@redhat.com> | Mon May 30 07:50:10 2016 -0600 |
| committer | Alex Williamson <alex.williamson@redhat.com> | Mon May 30 07:50:10 2016 -0600 |
| tree | 5d698890a0f6ab87af4c647908395f51d30e8356 | |
| parent | 1a695a905c18548062509178b98bc91e67510864 [diff] |
vfio/pci: Fix ordering of eventfd vs virqfd shutdown Both the INTx and MSI/X disable paths do an eventfd_ctx_put() for the trigger eventfd before calling vfio_virqfd_disable() any potential mask and unmask eventfds. This opens a use-after-free race where an inopportune irqfd can reference the freed signalling eventfd. Reorder to avoid this possibility. Signed-off-by: Alex Williamson <alex.williamson@redhat.com>