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BUG: KCSAN: data-race in __set_task_comm / strlen

write to 0xffff8881046887db of 13 bytes by task 15510 on cpu 1:
 __set_task_comm+0x92/0x180 fs/exec.c:1104
 begin_new_exec+0xec6/0x1200 fs/exec.c:1292
 load_elf_binary+0x5e2/0x18f0 fs/binfmt_elf.c:1010
 search_binary_handler fs/exec.c:1777 [inline]
 exec_binprm fs/exec.c:1809 [inline]
 bprm_execve+0x46b/0xa50 fs/exec.c:1865
 do_execveat_common+0x7b5/0x8b0 fs/exec.c:1963
 __do_sys_execve fs/exec.c:2036 [inline]
 __se_sys_execve fs/exec.c:2030 [inline]
 __x64_sys_execve+0x5f/0x80 fs/exec.c:2030
 x64_sys_call+0x1cd2/0x2550 arch/x86/include/generated/asm/syscalls_64.h:60
 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
 do_syscall_64+0x116/0x380 arch/x86/entry/syscall_64.c:89
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

read to 0xffff8881046887dc of 1 bytes by task 13 on cpu 0:
 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:1368
 update_curr+0x1e/0x210 kernel/sched/fair.c:2182
 update_curr_eevdf kernel/sched/fair.c:8150 [inline]
 enqueue_task_fair+0x77/0x850 kernel/sched/fair.c:8180
 enqueue_task kernel/sched/core.c:2197 [inline]
 activate_task kernel/sched/core.c:2237 [inline]
 ttwu_do_activate+0x65/0x210 kernel/sched/core.c:3903
 ttwu_queue kernel/sched/core.c:4156 [inline]
 try_to_wake_up+0x3f8/0x6b0 kernel/sched/core.c:4489
 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: 0x63 -> 0x00

Reported by Kernel Concurrency Sanitizer on:
CPU: 0 UID: 0 PID: 13 Comm: kworker/u8:0 Not tainted syzkaller #0 PREEMPT(lazy) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/06/2026
Workqueue: events_unbound nsim_dev_trap_report_work
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