Hi, ipset 7.5 is just released - please upgrade to this version! The syzkaller fuzzer discovered a NULL dereference bug in ipset, which was fixed by Florian Westphal. The CAP_NET_ADMIN capability is required to exploit the vulnerability. Other than that, the release brings a lot of backward compatibility improvements, thanks to Serhey Popovych. Userspace changes: - configure.ac: Support building with old autoconf 2.63 (Serhey Popovych) - configure.ac: Build on kernels without skb->vlan_proto correctly (Serhey Popovych) - configure.ac: Add cond_resched_rcu() checks (Serhey Popovych) - configure.ac: Better match for ipv6_skip_exthdr() frag_offp arg presence (Serhey Popovych) - Document explicitly that protocol is not stored in bitmap:port Kernel part changes: - netfilter: ipset: avoid null deref when IPSET_ATTR_LINENO is present (Florian Westphal) - ip_set: Pass init_net when @net is missing in match check params data structure (Serhey Popovych) - netfilter: xt_set: Do not restrict --map-set to the mangle table (Serhey Popovych) - compat: em_ipset: Build on old kernels (Serhey Popovych) - compat: Use skb_vlan_tag_present() instead of vlan_tx_tag_present() (Serhey Popovych) You can download the source code of ipset from: http://ipset.netfilter.org ftp://ftp.netfilter.org/pub/ipset/ git://git.netfilter.org/ipset.git Best regards, Jozsef - E-mail : kadlec@xxxxxxxxxxxxxxxxx, kadlecsik.jozsef@xxxxxxxxxxxxx PGP key : http://www.kfki.hu/~kadlec/pgp_public_key.txt Address : Wigner Research Centre for Physics, Hungarian Academy of Sciences H-1525 Budapest 114, POB. 49, Hungary