CVE-2026-98381: falha de alta gravidade em Linux
veth: manage XDP program pointers during channel resize
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21Vexday Risk Score
Sem sinal de exploração. Nenhum artefato público de exploração conhecido até agora.
ssvc Trackcvss 7.8epss 0.1%
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
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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Referências
https://git.kernel.org/stable/c/1a5c5b9c64ba5f39dba55da6e12561ca56eeb758https://git.kernel.org/stable/c/25bb7c36225220d30f404d7e29d2e052bc5f4b99https://git.kernel.org/stable/c/3c10a5dd0d38f506f671dbb59e9d0ee4c72076f9https://git.kernel.org/stable/c/43f6b647f209591b1e3f726bb16b8dcba6b95908https://git.kernel.org/stable/c/7104a370714346b667712913dc16abf14bbc97edhttps://git.kernel.org/stable/c/7a8e143109ff2736dc79e41dcd55af7ceab7520ahttps://git.kernel.org/stable/c/f0e8dba8c224981e53c792c6b3dbb7604fb2c2c6