Vitaly Kuznetsov 8809883482
hv_netvsc: set nvdev link after populating chn_table ...
Crash in netvsc_send() is observed when netvsc device is re-created on
mtu change/set channels. The crash is caused by dereferencing of NULL
channel pointer which comes from chn_table. The root cause is a mixture
of two facts:
- we set nvdev pointer in net_device_context in alloc_net_device()
before we populate chn_table.
- we populate chn_table[0] only.
The issue could be papered over by checking channel != NULL in
netvsc_send() but populating the whole chn_table and writing the
nvdev pointer afterwards seems more appropriate.
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com >
Signed-off-by: David S. Miller <davem@davemloft.net >
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