Hello:
This patch was applied to netdev/net-next.git (main)
by Jakub Kicinski <kuba@xxxxxxxxxx>:
On Tue, 2 Sep 2025 14:29:33 +0800 you wrote:
> During recent testing with the netem qdisc to inject delays into TCP
> traffic, we observed that our CLS BPF program failed to function correctly
> due to incorrect classid retrieval from task_get_classid(). The issue
> manifests in the following call stack:
>
> bpf_get_cgroup_classid+5
> cls_bpf_classify+507
> __tcf_classify+90
> tcf_classify+217
> __dev_queue_xmit+798
> bond_dev_queue_xmit+43
> __bond_start_xmit+211
> bond_start_xmit+70
> dev_hard_start_xmit+142
> sch_direct_xmit+161
> __qdisc_run+102 <<<<< Issue location
> __dev_xmit_skb+1015
> __dev_queue_xmit+637
> neigh_hh_output+159
> ip_finish_output2+461
> __ip_finish_output+183
> ip_finish_output+41
> ip_output+120
> ip_local_out+94
> __ip_queue_xmit+394
> ip_queue_xmit+21
> __tcp_transmit_skb+2169
> tcp_write_xmit+959
> __tcp_push_pending_frames+55
> tcp_push+264
> tcp_sendmsg_locked+661
> tcp_sendmsg+45
> inet_sendmsg+67
> sock_sendmsg+98
> sock_write_iter+147
> vfs_write+786
> ksys_write+181
> __x64_sys_write+25
> do_syscall_64+56
> entry_SYSCALL_64_after_hwframe+100
>
> [...]
Here is the summary with links:
- [v4,next-next] net/cls_cgroup: Fix task_get_classid() during qdisc run
https://git.kernel.org/netdev/net-next/c/66048f8b3cc7
You are awesome, thank you!
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