If the first WWID_LEN bytes of the uuid_attribute do not contain a 0 byte, pp->wwid may end up not properly terminated. Fix it. Signed-off-by: Martin Wilck <mwilck@xxxxxxxx> --- libmultipath/discovery.c | 1 + 1 file changed, 1 insertion(+) diff --git a/libmultipath/discovery.c b/libmultipath/discovery.c index 663c8eaa..9951af84 100644 --- a/libmultipath/discovery.c +++ b/libmultipath/discovery.c @@ -1615,6 +1615,7 @@ get_udev_uid(struct path * pp, char *uid_attribute, struct udev_device *udev) len = strlen(value); } strncpy(pp->wwid, value, len); + pp->wwid[WWID_SIZE - 1] = '\0'; } else { condlog(3, "%s: no %s attribute", pp->dev, uid_attribute); -- 2.13.2 -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel