================================================================== BUG: KCSAN: data-race in taskstats_exit / taskstats_exit write to 0xffff8881023d8c90 of 8 bytes by task 8784 on cpu 1: taskstats_tgid_alloc kernel/taskstats.c:567 [inline] taskstats_exit+0x6b7/0x720 kernel/taskstats.c:596 do_exit+0x281/0x18c0 kernel/exit.c:782 do_group_exit+0xb4/0x1c0 kernel/exit.c:895 get_signal+0x2a2/0x1320 kernel/signal.c:2734 do_signal+0x2f/0x6c0 arch/x86/kernel/signal.c:815 exit_to_usermode_loop+0x250/0x2c0 arch/x86/entry/common.c:160 prepare_exit_to_usermode arch/x86/entry/common.c:195 [inline] syscall_return_slowpath arch/x86/entry/common.c:278 [inline] do_syscall_64+0x384/0x3a0 arch/x86/entry/common.c:304 entry_SYSCALL_64_after_hwframe+0x44/0xa9 read to 0xffff8881023d8c90 of 8 bytes by task 8776 on cpu 0: taskstats_tgid_alloc kernel/taskstats.c:559 [inline] taskstats_exit+0xb2/0x720 kernel/taskstats.c:596 do_exit+0x281/0x18c0 kernel/exit.c:782 do_group_exit+0xb4/0x1c0 kernel/exit.c:895 __do_sys_exit_group kernel/exit.c:906 [inline] __se_sys_exit_group kernel/exit.c:904 [inline] __x64_sys_exit_group+0x2e/0x30 kernel/exit.c:904 do_syscall_64+0xcc/0x3a0 arch/x86/entry/common.c:294 entry_SYSCALL_64_after_hwframe+0x44/0xa9 Reported by Kernel Concurrency Sanitizer on: CPU: 0 PID: 8776 Comm: syz-executor.4 Not tainted 5.5.0-rc1-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ==================================================================