batman_adv: batadv0: Interface deactivated: batadv_slave_1
batman_adv: batadv0: Removing interface: batadv_slave_1
veth1_macvtap: left promiscuous mode
==================================================================
BUG: KCSAN: data-race in data_alloc / data_push_tail

write to 0xffffffff88bc6530 of 8 bytes by task 29 on cpu 1:
 data_alloc+0x216/0x2c0 kernel/printk/printk_ringbuffer.c:1082
 prb_reserve+0x85e/0xb60 kernel/printk/printk_ringbuffer.c:1669
 vprintk_store+0x558/0x870 kernel/printk/printk.c:2326
 vprintk_emit+0x15e/0x680 kernel/printk/printk.c:2408
 vprintk_deferred kernel/printk/printk.c:4571 [inline]
 _printk_deferred+0x83/0xb0 kernel/printk/printk.c:4580
 ___ratelimit+0x294/0x2b0 lib/ratelimit.c:56
 __printk_ratelimit+0x1c/0x30 kernel/printk/printk.c:4596
 kauditd_printk_skb kernel/audit.c:545 [inline]
 kauditd_hold_skb+0x61/0x1b0 kernel/audit.c:581
 kauditd_send_queue+0x288/0x2e0 kernel/audit.c:766
 kauditd_thread+0x42a/0x650 kernel/audit.c:890
 kthread+0x1d1/0x210 kernel/kthread.c:389
 ret_from_fork+0x4b/0x60 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244

read to 0xffffffff88bc6530 of 8 bytes by task 24732 on cpu 0:
 data_make_reusable kernel/printk/printk_ringbuffer.c:594 [inline]
 data_push_tail+0x102/0x430 kernel/printk/printk_ringbuffer.c:679
 data_alloc+0xbe/0x2c0 kernel/printk/printk_ringbuffer.c:1054
 prb_reserve+0x85e/0xb60 kernel/printk/printk_ringbuffer.c:1669
 vprintk_store+0x558/0x870 kernel/printk/printk.c:2326
 vprintk_emit+0x15e/0x680 kernel/printk/printk.c:2408
 vprintk_default+0x26/0x30 kernel/printk/printk.c:2447
 vprintk+0x75/0x80 kernel/printk/printk_safe.c:86
 _printk+0x7a/0xa0 kernel/printk/printk.c:2457
 __netdev_printk+0x2d1/0x3e0 net/core/dev.c:11946
 netdev_info+0x99/0xc0 net/core/dev.c:11993
 __dev_set_promiscuity+0x165/0x340 net/core/dev.c:8738
 __dev_set_rx_mode+0x128/0x180
 dev_uc_del+0x82/0xa0 net/core/dev_addr_lists.c:714
 macsec_dev_stop+0x342/0x390 drivers/net/macsec.c:3679
 __dev_close_many+0x127/0x1e0 net/core/dev.c:1560
 dev_close_many+0x103/0x240 net/core/dev.c:1585
 unregister_netdevice_many_notify+0x263/0x11b0 net/core/dev.c:11500
 unregister_netdevice_many net/core/dev.c:11590 [inline]
 default_device_exit_batch+0x5f0/0x650 net/core/dev.c:12073
 ops_exit_list net/core/net_namespace.c:177 [inline]
 cleanup_net+0x4cf/0x860 net/core/net_namespace.c:648
 process_one_work kernel/workqueue.c:3229 [inline]
 process_scheduled_works+0x483/0x9a0 kernel/workqueue.c:3310
 worker_thread+0x51d/0x6f0 kernel/workqueue.c:3391
 kthread+0x1d1/0x210 kernel/kthread.c:389
 ret_from_fork+0x4b/0x60 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244

value changed: 0x0000000100001d3d -> 0x0000000100002adb

Reported by Kernel Concurrency Sanitizer on:
CPU: 0 UID: 0 PID: 24732 Comm: kworker/u8:52 Not tainted 6.13.0-rc3-syzkaller-00193-ge9b8ffafd20a #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/25/2024
Workqueue: netns cleanup_net
==================================================================
veth0_macvtap: left promiscuous mode
veth1_vlan: left promiscuous mode
veth0_vlan: left promiscuous mode
team0 (unregistering): Port device team_slave_1 removed
team0 (unregistering): Port device team_slave_0 removed