| From | Ben Hutchings <> | Date | Tue, 05 May 2015 02:16:39 +0100 | Subject | [PATCH 3.2 218/221] IB/core: Avoid leakage from kernel to user space |
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3.2.69-rc1 review patch. If anyone has any objections, please let me know.
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From: Eli Cohen <eli@dev.mellanox.co.il>
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: Ben Hutchings <ben@decadent.org.uk> Cc: Yann Droneaud <ydroneaud@opteya.com> --- drivers/infiniband/core/uverbs_main.c | 1 + 1 file changed, 1 insertion(+)
--- a/drivers/infiniband/core/uverbs_main.c +++ b/drivers/infiniband/core/uverbs_main.c @@ -451,6 +451,7 @@ static void ib_uverbs_async_handler(stru 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);
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