diff options
Diffstat (limited to 'drivers/misc')
| -rw-r--r-- | drivers/misc/pci_endpoint_test.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/misc/pci_endpoint_test.c b/drivers/misc/pci_endpoint_test.c index deb203026496..c0d323077ad0 100644 --- a/drivers/misc/pci_endpoint_test.c +++ b/drivers/misc/pci_endpoint_test.c @@ -226,6 +226,9 @@ static bool pci_endpoint_test_copy(struct pci_endpoint_test *test, size_t size) u32 src_crc32; u32 dst_crc32; + if (size > SIZE_MAX - alignment) + goto err; + orig_src_addr = dma_alloc_coherent(dev, size + alignment, &orig_src_phys_addr, GFP_KERNEL); if (!orig_src_addr) { @@ -311,6 +314,9 @@ static bool pci_endpoint_test_write(struct pci_endpoint_test *test, size_t size) size_t alignment = test->alignment; u32 crc32; + if (size > SIZE_MAX - alignment) + goto err; + orig_addr = dma_alloc_coherent(dev, size + alignment, &orig_phys_addr, GFP_KERNEL); if (!orig_addr) { @@ -369,6 +375,9 @@ static bool pci_endpoint_test_read(struct pci_endpoint_test *test, size_t size) size_t alignment = test->alignment; u32 crc32; + if (size > SIZE_MAX - alignment) + goto err; + orig_addr = dma_alloc_coherent(dev, size + alignment, &orig_phys_addr, GFP_KERNEL); if (!orig_addr) { |