batman_adv: batadv0: Removing interface: batadv_slave_1
veth1_macvtap: left promiscuous mode
veth0_macvtap: left promiscuous mode
veth1_vlan: left promiscuous mode
veth0_vlan: left promiscuous mode
==================================================================
BUG: KCSAN: data-race in __set_task_comm / strlen

write to 0xffff88810472de18 of 10 bytes by task 8187 on cpu 0:
 __set_task_comm+0x78/0x180 fs/exec.c:1102
 __do_sys_prctl kernel/sys.c:2608 [inline]
 __se_sys_prctl+0xcb3/0x13b0 kernel/sys.c:2534
 __x64_sys_prctl+0x67/0x80 kernel/sys.c:2534
 x64_sys_call+0x2421/0x2550 arch/x86/include/generated/asm/syscalls_64.h:158
 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
 do_syscall_64+0x112/0x360 arch/x86/entry/syscall_64.c:84
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

read to 0xffff88810472de1d of 1 bytes by task 28938 on cpu 1:
 strlen+0x19/0x40 lib/string.c:402
 __fortify_strlen include/linux/fortify-string.h:218 [inline]
 trace_event_get_offsets_sched_stat_runtime include/trace/events/sched.h:560 [inline]
 do_trace_event_raw_event_sched_stat_runtime include/trace/events/sched.h:553 [inline]
 trace_event_raw_event_sched_stat_runtime+0x5a/0x150 include/trace/events/sched.h:553
 __do_trace_sched_stat_runtime include/trace/events/sched.h:576 [inline]
 trace_sched_stat_runtime include/trace/events/sched.h:576 [inline]
 update_se+0x14f/0x450 kernel/sched/fair.c:1425
 update_curr+0x1e/0x210 kernel/sched/fair.c:2048
 update_curr_eevdf kernel/sched/fair.c:7980 [inline]
 enqueue_task_fair+0x77/0x850 kernel/sched/fair.c:8010
 enqueue_task kernel/sched/core.c:2194 [inline]
 activate_task kernel/sched/core.c:2234 [inline]
 ttwu_do_activate+0xa7/0x230 kernel/sched/core.c:3840
 ttwu_queue kernel/sched/core.c:4093 [inline]
 try_to_wake_up+0x44f/0x6d0 kernel/sched/core.c:4431
 __queue_work+0x7b6/0xbc0 kernel/workqueue.c:2458
 queue_work_on+0xa9/0x140 kernel/workqueue.c:2501
 queue_work include/linux/workqueue.h:700 [inline]
 addr_event+0x235/0x270 drivers/infiniband/core/roce_gid_mgmt.c:873
 inet6addr_event+0x7b/0xa0 drivers/infiniband/core/roce_gid_mgmt.c:903
 notifier_call_chain kernel/notifier.c:85 [inline]
 atomic_notifier_call_chain+0x79/0x1a0 kernel/notifier.c:223
 inet6addr_notifier_call_chain+0x24/0x30 net/ipv6/addrconf_core.c:108
 addrconf_ifdown+0x915/0xf70 net/ipv6/addrconf.c:4014
 addrconf_notify+0x214/0x8e0 net/ipv6/addrconf.c:-1
 notifier_call_chain kernel/notifier.c:85 [inline]
 raw_notifier_call_chain+0x72/0x1a0 kernel/notifier.c:453
 call_netdevice_notifiers_info net/core/dev.c:2275 [inline]
 call_netdevice_notifiers_extack net/core/dev.c:2313 [inline]
 call_netdevice_notifiers net/core/dev.c:2327 [inline]
 netif_close_many+0x288/0x3a0 net/core/dev.c:1829
 unregister_netdevice_many_notify+0x500/0x1560 net/core/dev.c:12487
 unregister_netdevice_many net/core/dev.c:12589 [inline]
 default_device_exit_batch+0x408/0x460 net/core/dev.c:13289
 ops_exit_list net/core/net_namespace.c:206 [inline]
 ops_undo_list+0x2ca/0x420 net/core/net_namespace.c:253
 cleanup_net+0x37c/0x5b0 net/core/net_namespace.c:706
 process_one_work kernel/workqueue.c:3396 [inline]
 process_scheduled_works+0x56a/0xa50 kernel/workqueue.c:3479
 worker_thread+0x569/0x750 kernel/workqueue.c:3560
 kthread+0x223/0x270 kernel/kthread.c:436
 ret_from_fork+0x146/0x330 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245

value changed: 0x78 -> 0x2e

Reported by Kernel Concurrency Sanitizer on:
CPU: 1 UID: 0 PID: 28938 Comm: kworker/u8:1 Not tainted syzkaller #0 PREEMPT(lazy) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
Workqueue: netns cleanup_net
==================================================================
team0 (unregistering): Port device team_slave_1 removed
team0 (unregistering): Port device team_slave_0 removed