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

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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: a977049dac ('[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>

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Doron Tsur 2015-10-11 15:58:17 +03:00 • committed by Doug Ledford

parent ab3964ad2a

commit 0ca81a2840

1 changed files with 9 additions and 1 deletions

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drivers/infiniband/core/cm.c

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