CVE-2026-89564

In the Linux kernel, the following vulnerability has been resolved: ip: orphan prefetched skbs before multicast forwarding IPv4 and IPv6 input preserve an skb-sk association installed by bpfskassign so that local delivery can use the selected socket under RCU. Both address families can also...

CVE-2026-89564

CVE-2026-89564 is a use-after-free in the Linux kernel 's IP multicast forwarding path. When a socket prefetched by BPF (bpf_sk_assign) or UDP early demux is destroyed before the skb is freed, a later call to sock_pfree() dereferences the stale skb->sk pointer. Both IPv4 and IPv6 are affected:...

EUVD-2026-76475

In the Linux kernel, the following vulnerability has been resolved: ip: orphan prefetched skbs before multicast forwarding IPv4 and IPv6 input preserve an skb-sk association installed by bpfskassign so that local delivery can use the selected socket under RCU. Both address families can also...

CVE-2026-89564 ip: orphan prefetched skbs before multicast forwarding

In the Linux kernel, the following vulnerability has been resolved: ip: orphan prefetched skbs before multicast forwarding IPv4 and IPv6 input preserve an skb-sk association installed by bpfskassign so that local delivery can use the selected socket under RCU. Both address families can also...

CVE-2026-89564 ip: orphan prefetched skbs before multicast forwarding

In the Linux kernel, the following vulnerability has been resolved: ip: orphan prefetched skbs before multicast forwarding IPv4 and IPv6 input preserve an skb-sk association installed by bpfskassign so that local delivery can use the selected socket under RCU. Both address families can also...