summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
authorEli Cohen <eli@dev.mellanox.co.il>2014-09-14 16:47:52 +0300
committerZefan Li <lizefan@huawei.com>2015-06-19 11:40:32 +0800
commit54561a5233a3981a6a139e22fc1e4688475c296c (patch)
tree9a6a1d4d4b4d03be301868b03b410ca454ff0684
parent6221195422cc63c0c977ae05e964aad862f6cee6 (diff)
IB/core: Avoid leakage from kernel to user space
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: Zefan Li <lizefan@huawei.com>
-rw-r--r--drivers/infiniband/core/uverbs_main.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/infiniband/core/uverbs_main.c b/drivers/infiniband/core/uverbs_main.c
index 604556d73d25..5b51e4e6e7f9 100644
--- a/drivers/infiniband/core/uverbs_main.c
+++ b/drivers/infiniband/core/uverbs_main.c
@@ -451,6 +451,7 @@ 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);