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[  173.066516][T27493] BUG: KCSAN: data-race in exit_mm / mm_update_next_owner
[  173.072574][T27493]
[  173.072938][T27493] write to 0xffff888127dc44c8 of 8 bytes by task 27494 on cpu 5:
[  173.077231][T27493]  exit_mm+0x98/0x170
[  173.080517][T27493]  do_exit+0x5e9/0x17f0
[  173.083645][T27493]  do_group_exit+0xc5/0x180
[  173.092470][T27493]  get_signal+0xde4/0x14e0
[  173.095212][T27493]  arch_do_signal_or_restart+0x8c/0x2d0
[  173.100640][T27493]  exit_to_user_mode_prepare+0x106/0x190
[  173.101981][T27493]  syscall_exit_to_user_mode+0x20/0x40
[  173.105344][T27493]  do_syscall_64+0x50/0xd0
[  173.107631][T27493]  entry_SYSCALL_64_after_hwframe+0x44/0xae
[  173.109775][T27493]
[  173.110102][T27493] read to 0xffff888127dc44c8 of 8 bytes by task 27493 on cpu 2:
[  173.112319][T27493]  mm_update_next_owner+0x23c/0x4e0
[  173.113041][T27493]  exit_mm+0xd3/0x170
[  173.113629][T27493]  do_exit+0x5e9/0x17f0
[  173.114334][T27493]  do_group_exit+0x16c/0x180
[  173.154863][T27493]  __do_sys_exit_group+0xb/0x10
[  173.155733][T27493]  __se_sys_exit_group+0x5/0x10
[  173.156549][T27493]  __x64_sys_exit_group+0x16/0x20
[  173.157375][T27493]  do_syscall_64+0x44/0xd0
[  173.158110][T27493]  entry_SYSCALL_64_after_hwframe+0x44/0xae
[  173.199358][T27493]
[  173.201431][T27493] value changed: 0xffff88812ae87800 -> 0x0000000000000000
[  173.204790][T27493]
[  173.205170][T27493] Reported by Kernel Concurrency Sanitizer on:
[  173.207018][T27493] CPU: 2 PID: 27493 Comm: syz-executor.4 Not tainted 5.16.0-rc8+ #11
[  173.208256][T27493] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.13.0-1ubuntu1.1 04/01/2014
[  173.209685][T27493] ==================================================================