bond25: Warning: No 802.3ad response from the link partner for any adapters in the bond
==================================================================
BUG: KCSAN: data-race in data_push_tail / string

write to 0xffffffff86e87936 of 1 bytes by task 2794 on cpu 0:
 string_nocheck lib/vsprintf.c:647 [inline]
 string+0x17b/0x220 lib/vsprintf.c:725
 vsnprintf+0xb57/0xe80 lib/vsprintf.c:2783
 vscnprintf+0x3e/0x80 lib/vsprintf.c:2889
 printk_sprint kernel/printk/printk.c:2222 [inline]
 vprintk_store+0x5f2/0xb50 kernel/printk/printk.c:2336
 vprintk_emit+0xcc/0x4e0 kernel/printk/printk.c:2382
 vprintk_default+0x22/0x30 kernel/printk/printk.c:2412
 vprintk+0x7f/0x90 kernel/printk/printk_safe.c:50
 _printk+0x76/0x96 kernel/printk/printk.c:2422
 vlan_device_event+0x1057/0x1110 net/8021q/vlan.c:383
 notifier_call_chain kernel/notifier.c:87 [inline]
 raw_notifier_call_chain+0x53/0xb0 kernel/notifier.c:455
 __dev_notify_flags+0x1d6/0x3a0
 dev_change_flags+0xa2/0xc0 net/core/dev.c:8607
 do_setlink+0x778/0x2230 net/core/rtnetlink.c:2780
 __rtnl_newlink net/core/rtnetlink.c:3546 [inline]
 rtnl_newlink+0x114c/0x16a0 net/core/rtnetlink.c:3593
 rtnetlink_rcv_msg+0x811/0x8c0 net/core/rtnetlink.c:6089
 netlink_rcv_skb+0x13e/0x240 net/netlink/af_netlink.c:2501
 rtnetlink_rcv+0x18/0x20 net/core/rtnetlink.c:6107
 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline]
 netlink_unicast+0x58a/0x660 net/netlink/af_netlink.c:1345
 netlink_sendmsg+0x661/0x750 net/netlink/af_netlink.c:1921
 sock_sendmsg_nosec net/socket.c:714 [inline]
 sock_sendmsg net/socket.c:734 [inline]
 ____sys_sendmsg+0x38f/0x500 net/socket.c:2492
 ___sys_sendmsg net/socket.c:2546 [inline]
 __sys_sendmsg+0x197/0x230 net/socket.c:2575
 __do_sys_sendmsg net/socket.c:2584 [inline]
 __se_sys_sendmsg net/socket.c:2582 [inline]
 __x64_sys_sendmsg+0x42/0x50 net/socket.c:2582
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x46/0xb0

read to 0xffffffff86e87930 of 8 bytes by task 27963 on cpu 1:
 data_make_reusable kernel/printk/printk_ringbuffer.c:590 [inline]
 data_push_tail+0x10f/0x440 kernel/printk/printk_ringbuffer.c:675
 data_alloc+0xbc/0x2b0 kernel/printk/printk_ringbuffer.c:1046
 prb_reserve+0x897/0xbd0 kernel/printk/printk_ringbuffer.c:1555
 vprintk_store+0x51c/0xb50 kernel/printk/printk.c:2326
 vprintk_emit+0xcc/0x4e0 kernel/printk/printk.c:2382
 vprintk_default+0x22/0x30 kernel/printk/printk.c:2412
 vprintk+0x7f/0x90 kernel/printk/printk_safe.c:50
 _printk+0x76/0x96 kernel/printk/printk.c:2422
 ad_agg_selection_logic+0xf23/0xf30 drivers/net/bonding/bond_3ad.c:1744
 ad_port_selection_logic drivers/net/bonding/bond_3ad.c:1551 [inline]
 bond_3ad_state_machine_handler+0xdab/0x25f0 drivers/net/bonding/bond_3ad.c:2367
 process_one_work+0x3d3/0x720 kernel/workqueue.c:2289
 worker_thread+0x618/0xa70 kernel/workqueue.c:2436
 kthread+0x1a9/0x1e0 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30

value changed: 0x0000000100000500 -> 0x0000206563697665

Reported by Kernel Concurrency Sanitizer on:
CPU: 1 PID: 27963 Comm: kworker/u4:14 Not tainted 5.19.0-rc1-syzkaller-00262-g0885eacdc81f-dirty #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: bond25 bond_3ad_state_machine_handler
==================================================================