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| author |   Michael S. Tsirkin <mst@redhat.com> | 2016-01-14 16:00:41 +0200 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2016-01-26 10:18:28 +0200 |
| commit | 2989be09a8a9d62a785137586ad941f916e08f83 (patch) | |
| tree | 91fc1b8002e4c9868d0e692dd6b4039e965c9a36 /tools/virtio | |
| parent | Linux 4.5-rc1 (diff) | |
| download | linux-dev-2989be09a8a9d62a785137586ad941f916e08f83.tar.xz linux-dev-2989be09a8a9d62a785137586ad941f916e08f83.zip | |
virtio_pci: fix use after free on release
KASan detected a use-after-free error in virtio-pci remove code. In
virtio_pci_remove(), vp_dev is still used after being freed in
unregister_virtio_device() (in virtio_pci_release_dev() more
precisely).
To fix, keep a reference until cleanup is done.
Fixes: 63bd62a08ca4 ("virtio_pci: defer kfree until release callback")
Reported-by: Jerome Marchand <jmarchan@redhat.com>
Cc: stable@vger.kernel.org
Cc: Sasha Levin <sasha.levin@oracle.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Tested-by: Jerome Marchand <jmarchan@redhat.com>
Diffstat (limited to 'tools/virtio')
0 files changed, 0 insertions, 0 deletions