netfilter: iptables: Fix potential null-ptr-deref in ip6table_nat_table_init().
3Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackepss 0.2%
exploitation probability
0.2%top 88% of all CVEs
observed exploitation
nono source reports it
In the Linux kernel, the following vulnerability has been resolved:
netfilter: iptables: Fix potential null-ptr-deref in ip6table_nat_table_init().
ip6table_nat_table_init() accesses net->gen->ptr[ip6table_nat_net_ops.id],
but the function is exposed to user space before the entry is allocated
via register_pernet_subsys().
Let's call register_pernet_subsys() before xt_register_template().
Affected products
Linux · LinuxReferences
https://git.kernel.org/stable/c/419ee6274c5153b89c4393c1946faa4c3cad4f9ehttps://git.kernel.org/stable/c/87dba44e9471b79b255d0736858a897332db9226https://git.kernel.org/stable/c/91b6df6611b7edb28676c4f63f90c56c30d3e601https://git.kernel.org/stable/c/c22921df777de5606f1047b1345b8d22ef1c0b34https://git.kernel.org/stable/c/e85b9b6a87be4cb3710082038b677e97f2389003https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html