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(parent: a120fbd) | 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)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Wed, 4 Oct 2017 08:39:28 +0000 (10:39 +0200)
commit378f79cab12b669928f3a4037f023837ead2ce0c
tree3c1e44ce1b50659550a0a956c2b81d7d8b778b69tree | snapshot
parenta120fbddd59a3d04a63800824ea032dbf1c21b83commit | 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, ...

I've added 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: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/misc/pci_endpoint_test.c diff | blob | history
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