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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 <sameo@linux.intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Tomas Winkler 2013-07-24 16:22:59 +03:00 committed by Greg Kroah-Hartman
parent 5290801c23
commit 8b613bb86a
1 changed files with 2 additions and 2 deletions
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4
drivers/misc/mei/bus.c
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@ -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);
}