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(parent: 9e66317) | patch
misc: pci_endpoint_test: Prevent some integer overflows
authorDan Carpenter <dan.carpenter@oracle.com>
Sat, 30 Sep 2017 08:15:52 +0000 (11:15 +0300)
committerBjorn Helgaas <bhelgaas@google.com>
Tue, 17 Oct 2017 18:56:20 +0000 (13:56 -0500)
commit343dc693f7b79885197f9d37dd8b711b0e3ffc8f
tree03d18b9cc634d4634b374796e93cca398d2b98e1tree | snapshot
parent9e66317d3c92ddaab330c125dfe9d06eee268affcommit | diff
misc: pci_endpoint_test: Prevent some integer overflows

"size + max" can have an arithmetic overflow when we're allocating:

  orig_src_addr = dma_alloc_coherent(dev, size + alignment, ...

Add a few checks to prevent that.

Fixes: 13107c60681f ("misc: pci_endpoint_test: Add support to provide aligned buffer addresses")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Kishon Vijay Abraham I <kishon@ti.com>
drivers/misc/pci_endpoint_test.c diff | blob | history
John Crispins staging tree