Commit 137d9ebf authored Feb 19, 2010 by Stefan Richter

firewire: core: fix an information leak

If a device exposes a sparsely populated configuration ROM,
firewire-core's sysfs interface and character device file interface
showed random data in the gaps between config ROM blocks. Fix this by
zero-initialization of the config ROM reader's scratch buffer.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>

parent 58aaa542

drivers/firewire/core-device.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -514,6 +514,7 @@ static int read_bus_info_block(struct fw_device *device, int generation)
		return -ENOMEM;

		stack = &rom[READ_BIB_ROM_SIZE];
		memset(rom, 0, sizeof(rom) READ_BIB_ROM_SIZE);

		device->max_speed = SCODE_100;