From 8b613bb86a3d4a106c9a8f6de3d8a4c3628ea998 Mon Sep 17 00:00:00 2001 From: Tomas Winkler Date: Wed, 24 Jul 2013 16:22:59 +0300 Subject: mei: bus: do not overflow the device name buffer 1. use strncmp for comparsion strncpy was used for copying which may omit the final %NUL terminator 2. id->name is statically defined so we can use sizeof Acked-by: Samuel Ortiz Signed-off-by: Tomas Winkler Signed-off-by: Greg Kroah-Hartman --- drivers/misc/mei/bus.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers/misc/mei/bus.c') diff --git a/drivers/misc/mei/bus.c b/drivers/misc/mei/bus.c index 9ecd49a7be1b..a150a42ed4af 100644 --- a/drivers/misc/mei/bus.c +++ b/drivers/misc/mei/bus.c @@ -47,7 +47,7 @@ static int mei_cl_device_match(struct device *dev, struct device_driver *drv) id = driver->id_table; while (id->name[0]) { - if (!strcmp(dev_name(dev), id->name)) + if (!strncmp(dev_name(dev), id->name, sizeof(id->name))) return 1; id++; @@ -71,7 +71,7 @@ static int mei_cl_device_probe(struct device *dev) dev_dbg(dev, "Device probe\n"); - strncpy(id.name, dev_name(dev), MEI_CL_NAME_SIZE); + strncpy(id.name, dev_name(dev), sizeof(id.name)); return driver->probe(device, &id); } -- cgit v1.2.1