[3.16.y-ckt stable] Patch "IB/core: Avoid leakage from kernel to user space" has been added to staging queue
Luis Henriques
luis.henriques at canonical.com
Mon Mar 30 13:02:03 UTC 2015
This is a note to let you know that I have just added a patch titled
IB/core: Avoid leakage from kernel to user space
to the linux-3.16.y-queue branch of the 3.16.y-ckt extended stable tree
which can be found at:
http://kernel.ubuntu.com/git?p=ubuntu/linux.git;a=shortlog;h=refs/heads/linux-3.16.y-queue
This patch is scheduled to be released in version 3.16.7-ckt10.
If you, or anyone else, feels it should not be added to this tree, please
reply to this email.
For more information about the 3.16.y-ckt tree, see
https://wiki.ubuntu.com/Kernel/Dev/ExtendedStable
Thanks.
-Luis
------
>From 1b73865648478d898b008014e096233ca68d3093 Mon Sep 17 00:00:00 2001
From: Eli Cohen <eli at dev.mellanox.co.il>
Date: Sun, 14 Sep 2014 16:47:52 +0300
Subject: 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 at mellanox.com>
Reviewed-by: Yann Droneaud <ydroneaud at opteya.com>
Signed-off-by: Roland Dreier <roland at purestorage.com>
Signed-off-by: Luis Henriques <luis.henriques at canonical.com>
---
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 08219fb3338b..7a515c867674 100644
--- a/drivers/infiniband/core/uverbs_main.c
+++ b/drivers/infiniband/core/uverbs_main.c
@@ -476,6 +476,7 @@ 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);
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