[PATCH 3.14 10/43] IB/core: Avoid leakage from kernel to user space
From: Greg Kroah-Hartman
Date: Fri Apr 17 2015 - 10:24:00 EST
3.14-stable review patch. If anyone has any objections, please let me know.
------------------
From: Eli Cohen <eli@xxxxxxxxxxxxxxxxxx>
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@xxxxxxxxxxxx>
Reviewed-by: Yann Droneaud <ydroneaud@xxxxxxxxxx>
Signed-off-by: Roland Dreier <roland@xxxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
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
@@ -476,6 +476,7 @@ 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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