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| author | Vitaly Kuznetsov <vkuznets@redhat.com> | 2016-05-13 13:55:25 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2016-05-16 13:26:01 -0400 |
| commit | 88098834827025cc04c15f1b4b0d9bbef3cf55af (patch) | |
| tree | 9029cc6548f66604f49a6397c3e80de2d0734300 /drivers/net/hyperv/Kconfig | |
| parent | 6da7225f5a95ba68e3c6225c4051182bef30eed4 (diff) | |
| download | linux-88098834827025cc04c15f1b4b0d9bbef3cf55af.tar.bz2 | |
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>
Diffstat (limited to 'drivers/net/hyperv/Kconfig')
0 files changed, 0 insertions, 0 deletions