In the Linux kernel, the following vulnerability has been resolved: net: sched: actconnmark: initialize struct tcife to fix kernel leak In tcfconnmarkdump(), the variable 'opt' was partially initialized using a designatied initializer. While the padding bytes are reamined uninitialized. nla_put() copies the entire structure into a netlink message, these uninitialized bytes leaked to userspace. Initialize the structure with memset before assigning its fields to ensure all members and padding are cleared prior to beign copied.