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| author | Ido Schimmel <idosch@mellanox.com> | 2015-10-30 19:46:19 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2015-11-02 23:40:10 +0300 |
| commit | 07bc588fc1087929e8e6dfe95ffcee1cb69a240f (patch) | |
| tree | b07f5e0dc59c8e79d128eb5b6be5725cb610fedd /net/bridge/br_stp.c | |
| parent | ce1050089c969b96c797118f9cb0cf5a421ddc69 (diff) | |
| download | linux-07bc588fc1087929e8e6dfe95ffcee1cb69a240f.tar.xz | |
bridge: vlan: Prevent possible use-after-free
When adding a port to a bridge we initialize VLAN filtering on it. We do
not bail out in case an error occurred in nbp_vlan_init, as it can be
used as a non VLAN filtering bridge.
However, if VLAN filtering is required and an error occurred in
nbp_vlan_init, we should set vlgrp to NULL, so that VLAN filtering
functions (e.g. br_vlan_find, br_get_pvid) will know the struct is
invalid and will not try to access it.
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/bridge/br_stp.c')
0 files changed, 0 insertions, 0 deletions