diff options
| author | Andrea Parri (Microsoft) <[email protected]> | 2021-01-26 17:29:07 +0100 |
|---|---|---|
| committer | Jakub Kicinski <[email protected]> | 2021-01-29 16:44:07 -0800 |
| commit | 0ba35fe91ce34f2d0feff626efd0062dac41781c (patch) | |
| tree | d618cfab0efe234b40342d5d913c60f47a703908 /tools/perf/scripts/python/net_dropmonitor.py | |
| parent | 46eb3c108fe1744d0a6abfda69ef8c1d4f0e92d4 (diff) | |
hv_netvsc: Copy packets sent by Hyper-V out of the receive buffer
Pointers to receive-buffer packets sent by Hyper-V are used within the
guest VM. Hyper-V can send packets with erroneous values or modify
packet fields after they are processed by the guest. To defend against
these scenarios, copy (sections of) the incoming packet after validating
their length and offset fields in netvsc_filter_receive(). In this way,
the packet can no longer be modified by the host.
Reported-by: Juan Vazquez <[email protected]>
Signed-off-by: Andrea Parri (Microsoft) <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/net_dropmonitor.py')
0 files changed, 0 insertions, 0 deletions