Re: [PATCH net v2] veth: manage XDP program pointers during channel resize

[patchwork-bot+netdevbpf@kernel.org]

Hello:

This patch was applied to netdev/net.git (main)
by Jakub Kicinski <kuba@kernel.org>:

On Mon, 21 Sep 2026 16:18:56 -0700 you wrote:
> 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
> 
> [...]

Here is the summary with links:
  - [net,v2] veth: manage XDP program pointers during channel resize
    https://git.kernel.org/netdev/net/c/7104a3707143

You are awesome, thank you!
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