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    Subject[PATCH 3.12 024/155] IB/core: Avoid leakage from kernel to user space
    Date
    From: Eli Cohen <eli@dev.mellanox.co.il>

    3.12-stable review patch. If anyone has any objections, please let me know.

    ===============

    commit 377b513485fd885dea1083a9a5430df65b35e048 upstream.

    Clear the reserved field of struct ib_uverbs_async_event_desc which is
    copied to user space.

    Signed-off-by: Eli Cohen <eli@mellanox.com>
    Reviewed-by: Yann Droneaud <ydroneaud@opteya.com>
    Signed-off-by: Roland Dreier <roland@purestorage.com>
    Signed-off-by: Jiri Slaby <jslaby@suse.cz>
    ---
    drivers/infiniband/core/uverbs_main.c | 1 +
    1 file changed, 1 insertion(+)

    diff --git a/drivers/infiniband/core/uverbs_main.c b/drivers/infiniband/core/uverbs_main.c
    index 2df31f68ea09..849c9dc7d1f6 100644
    --- a/drivers/infiniband/core/uverbs_main.c
    +++ b/drivers/infiniband/core/uverbs_main.c
    @@ -473,6 +473,7 @@ static void ib_uverbs_async_handler(struct ib_uverbs_file *file,

    entry->desc.async.element = element;
    entry->desc.async.event_type = event;
    + entry->desc.async.reserved = 0;
    entry->counter = counter;

    list_add_tail(&entry->list, &file->async_file->event_list);
    --
    2.3.4


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