kernel: sctp: linearize cloned gso packets in sctp_rcv

A flaw use of uninitialized memory uncontrolled and invisible by attacker in the Linux kernel SCTP transport protocol was found in the way user triggers malicious SCTP packets. A remote user could use this flaw to crash the system. The bug actual only for systems where SCTP protocol being enabled...

DEBIAN-CVE-2025-38718

In the Linux kernel, the following vulnerability has been resolved: sctp: linearize cloned gso packets in sctprcv A cloned head skb still shares these frag skbs in fraglist with the original head skb. It's not safe to access these frag skbs. syzbot reported two use-of-uninitialized-memory bugs...