Patch "IB/core: Avoid unsigned int overflow in sg_alloc_table" has been added to the 4.8-stable tree

This is a note to let you know that I've just added the patch titled

IB/core: Avoid unsigned int overflow in sg_alloc_table

to the 4.8-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
ib-core-avoid-unsigned-int-overflow-in-sg_alloc_table.patch
and it can be found in the queue-4.8 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.

From: Mark Bloch <[email protected]>
Date: Thu, 27 Oct 2016 16:36:31 +0300
Subject: IB/core: Avoid unsigned int overflow in sg_alloc_table

From: Mark Bloch <[email protected]>

commit 3c7ba5760ab8eedec01159b267bb9bfcffe522ac upstream.

sg_alloc_table gets unsigned int as parameter while the driver returns it as size_t. Check npages isn't greater than maximum unsigned int.

---
 drivers/infiniband/core/umem.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

@@ -174,7 +174,7 @@ struct ib_umem *ib_umem_get(struct ib_uc
 
 	cur_base = addr & PAGE_MASK;
 
-	if (npages == 0) {
+	if (npages == 0 || npages > UINT_MAX) {
 		ret = -EINVAL;
 		goto out;
 	}

Patches currently in stable-queue which might be from [email protected] are

queue-4.8/ib-core-avoid-unsigned-int-overflow-in-sg_alloc_table.patch queue-4.8/ib-mlx4-check-gid_index-return-value.patch queue-4.8/ib-mlx5-fix-memory-leak-in-query-device.patch queue-4.8/ib-cm-mark-stale-cm-id-s-whenever-the-mad-agent-was-unregistered.patch queue-4.8/ib-mlx4-fix-create-cq-error-flow.patch