tree 4831bbc2111ad328b50563b827936a1022d25dd4
parent ab3964ad2acfbb0dc5414d4c86fa6d8d690f27a1
author Doron Tsur <doront@mellanox.com> 1444568297 +0300
committer Doug Ledford <dledford@redhat.com> 1445456592 -0400

IB/cm: Fix rb-tree duplicate free and use-after-free

ib_send_cm_sidr_rep could sometimes erase the node from the sidr
(depending on errors in the process). Since ib_send_cm_sidr_rep is
called both from cm_sidr_req_handler and cm_destroy_id, cm_id_priv
could be either erased from the rb_tree twice or not erased at all.
Fixing that by making sure it's erased only once before freeing
cm_id_priv.

Fixes: a977049dacde ('[PATCH] IB: Add the kernel CM implementation')
Signed-off-by: Doron Tsur <doront@mellanox.com>
Signed-off-by: Matan Barak <matanb@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>