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| author | Jason Wang <jasowang@redhat.com> | 2021-06-04 13:53:47 +0800 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2021-07-08 07:49:01 -0400 |
| commit | 44593865b7c5f55bf587f297c72d682c671eea2b (patch) | |
| tree | 591ca6616d1dd5472fb3f6d1f8416fa1345e9eb5 /tools/perf/util/scripting-engines/trace-event-python.c | |
| parent | 5a22242160201b819be2fe67e15cc9338f3ee582 (diff) | |
virtio_ring: secure handling of mapping errors
We should not depend on the DMA address, length and flag of descriptor
table since they could be wrote with arbitrary value by the device. So
this patch switches to use the stored one in desc_extra.
Note that the indirect descriptors are fine since they are read-only
streaming mappings.
Signed-off-by: Jason Wang <jasowang@redhat.com>
Link: https://lore.kernel.org/r/20210604055350.58753-5-jasowang@redhat.com
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'tools/perf/util/scripting-engines/trace-event-python.c')
0 files changed, 0 insertions, 0 deletions