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first_remote_rcu() can return NULL if the FDB entry points to an FDB nexthop group instead of a remote destination. However, unlike other users of first_remote_rcu(), NPD cannot currently happen in vxlan_fdb_find_uc() as it is only invoked by one driver which vetoes the creation of FDB nexthops. Make the function more robust by making sure the remote destination is only dereferenced if it is not NULL. Reviewed-by: Petr Machata <petrm@nvidia.com> Signed-off-by: Ido Schimmel <idosch@nvidia.com> Reviewed-by: Wang Liang <wangliang74@huawei.com> Reviewed-by: Nikolay Aleksandrov <razor@blackwall.org> Link: https://patch.msgid.link/20250908075141.125087-1-idosch@nvidia.com Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
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| .. | ||
| Makefile | ||
| vxlan_core.c | ||
| vxlan_mdb.c | ||
| vxlan_multicast.c | ||
| vxlan_private.h | ||
| vxlan_vnifilter.c | ||