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BUG: KCSAN: data-race in __set_task_comm / strlen

write to 0xffff88814f654cd8 of 13 bytes by task 29878 on cpu 0:
 __set_task_comm+0x78/0x180 fs/exec.c:1103
 io_wq_worker+0x140/0xc80 io_uring/io-wq.c:756
 ret_from_fork+0x146/0x330 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245

read to 0xffff88814f654cdb of 1 bytes by task 73 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/0x3b0 kernel/sched/fair.c:1369
 update_curr+0x1e/0x210 kernel/sched/fair.c:2183
 update_curr_eevdf kernel/sched/fair.c:8151 [inline]
 enqueue_task_fair+0x77/0x850 kernel/sched/fair.c:8181
 enqueue_task kernel/sched/core.c:2197 [inline]
 activate_task kernel/sched/core.c:2237 [inline]
 ttwu_do_activate+0xa7/0x230 kernel/sched/core.c:3897
 ttwu_queue kernel/sched/core.c:4150 [inline]
 try_to_wake_up+0x3f1/0x660 kernel/sched/core.c:4488
 process_one_work kernel/workqueue.c:3463 [inline]
 process_scheduled_works+0x4ee/0xa20 kernel/workqueue.c:3578
 worker_thread+0x56c/0x770 kernel/workqueue.c:3659
 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: 0x2e -> 0x2d

Reported by Kernel Concurrency Sanitizer on:
CPU: 1 UID: 0 PID: 73 Comm: kworker/u8:4 Not tainted syzkaller #0 PREEMPT(lazy) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/07/2026
Workqueue: bond2 bond_alb_monitor
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batman_adv: batadv0: Local translation table size (100) exceeds maximum packet size (-320); Ignoring new local tt entry: 33:33:00:00:00:6a