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(parent: ae9e1eb) | patch
ipv6: flowlabel: fl6_sock_lookup() must use atomic_inc_not_zero
authorEric Dumazet <edumazet@google.com>
Thu, 6 Jun 2019 21:32:34 +0000 (14:32 -0700)
committerDavid S. Miller <davem@davemloft.net>
Sun, 9 Jun 2019 20:07:14 +0000 (13:07 -0700)
commit6bea5cf99c832cc2ef4028d4c45526bcc4d34119
treeb3123d60841736cf01855d36332b3f0410a3129btree | snapshot
parentae9e1ebc106ef2acb01dad737b81ab500c3c4253commit | diff
ipv6: flowlabel: fl6_sock_lookup() must use atomic_inc_not_zero

Before taking a refcount, make sure the object is not already
scheduled for deletion.

Same fix is needed in ipv6_flowlabel_opt()

Fixes: e2b7be825596 ("ipv6 flowlabel: Convert np->ipv6_fl_list to RCU.")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
net/ipv6/ip6_flowlabel.c diff | blob | history
Linux Kernel Source Tree.