CVE-2026-31427

The CVE-2026-31427 issue in Linux kernel netfilter/nf_conntrack_sip was fixed by initializing the rtp_addr before calling nf_nat_sip SDP hooks and tracking via a have_rtp_addr flag. If SDP has no m= lines, or contains only inactive/unrecognized media, the code now avoids calling sdp_session with ...

PT-2026-32353

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description In the netfilter module, the process sdp function declares a union nf inet addr named rtp addr on the stack. This variable is only initialized when a recognized media type with a non-zer...

CVE-2026-31427

In the Linux kernel, the following vulnerability has been resolved: netfilter: nfconntracksip: fix use of uninitialized rtpaddr in processsdp processsdp declares union nfinetaddr rtpaddr on the stack and passes it to the nfnatsip sdpsession hook after walking the SDP media descriptions. However...