CVE-2026-98381

In the Linux kernel, the following vulnerability has been resolved:

veth: manage XDP program pointers during channel resize

veth_set_channels() tears down XDP resources for removed RX queues

without clearing rq->xdp_prog. If the program is then detached or

replaced, those queues keep the old pointer after bpf_prog_put().

A later channel increase can re-enable NAPI and run the freed program.

BUG: unable to handle page fault for address: ffffc90000256048

Oops: Oops: 0000 [#1] SMP KASAN NOPTI

RIP: veth_xdp_rcv_skb (include/linux/filter.h:779

include/net/xdp.h:696 drivers/net/veth.c:820)

Call Trace:

veth_xdp_rcv (drivers/net/veth.c:941)

veth_poll (drivers/net/veth.c:986)

__napi_poll (net/core/dev.c:7787)

net_rx_action (net/core/dev.c:7850 net/core/dev.c:8007)

handle_softirqs (kernel/softirq.c:645)

Kernel panic - not syncing: Fatal exception in interrupt