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>
diff --git a/drivers/misc/mei/bus.c b/drivers/misc/mei/bus.c
index 9ecd49a..a150a42 100644
--- a/drivers/misc/mei/bus.c
+++ b/drivers/misc/mei/bus.c
@@ -47,7 +47,7 @@
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 @@
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);
}