CVE-2026-72253
Description
AI Translation Available
In the Linux kernel, the following vulnerability has been resolved:
netfilter: nf_conntrack_sip: validate skb_dst() before accessing it
tc ingress and openvswitch do not guarantee routing information to be
available. These subsystems use the conntrack helper infrastructure, and
the SIP helper relies on the skb_dst() to be present if
sip_external_media is set to 1 (which is disabled by default as a module
parameter).
This effectively disables the sip_external_media toggle for these
subsystems without resulting in a crash.
https://git.kernel.org/stable/c/09755dc62b026076b1d47f83489eb0547c8135e0
https://git.kernel.org/stable/c/b843a96252f672332837ea2ecb7c8db0acf68e20
https://git.kernel.org/stable/c/c199ed687c00841daf60e9d131976958583a8c09
https://git.kernel.org/stable/c/e5e24a365a5e024efef63cc49abb345fbd4852c5
https://git.kernel.org/stable/c/e64a48c50a1ff565a98c6a98d82b5b942868e76e