IB/mthca: Set cleaned CQEs back to HW ownership when cleaning CQ

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mthca_cq_clean() updates the CQ consumer index without moving CQEs
back to HW ownership.  As a result, the same WRID might get reported
twice, resulting in a use-after-free.  This was observed in IPoIB CM.
Fix by moving all freed CQEs to HW ownership.

This fixes <https://bugs.openfabrics.org/show_bug.cgi?id=617>

Signed-off-by: Michael S. Tsirkin <mst@dev.mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>

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Michael S. Tsirkin 2007-05-14 17:14:50 +03:00 • committed by Roland Dreier

parent 3e28c56b9b

commit bd18c11277

1 changed files with 3 additions and 1 deletions

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drivers/infiniband/hw/mthca/mthca_cq.c

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