BUG: KCSAN: data-race in __stop_tty / do_con_write
write to 0xffff88814f8231bc of 1 bytes by task 3230 on cpu 0:
__stop_tty+0x42/0x90
n_tty_ioctl_helper+0x21f/0x240
n_tty_ioctl+0xfd/0x200
tty_ioctl+0x86f/0xbc0
__se_sys_ioctl+0xc9/0x140
__x64_sys_ioctl+0x43/0x50
do_syscall_64+0x41/0xc0
entry_SYSCALL_64_after_hwframe+0x63/0xcd
read to 0xffff88814f8231bc of 1 bytes by task 3217 on cpu 1:
do_con_write+0x1459/0x35d0
con_write+0x24/0x40
n_tty_write+0x76b/0xa80
file_tty_write+0x3a0/0x600
tty_write+0x28/0x30
vfs_write+0x45a/0x750
ksys_write+0xeb/0x1a0
__x64_sys_write+0x42/0x50
do_syscall_64+0x41/0xc0
entry_SYSCALL_64_after_hwframe+0x63/0xcd
value changed: 0x00 -> 0x01
Reported by Kernel Concurrency Sanitizer on:
CPU: 1 PID: 3217 Comm: syz-executor.0 Tainted: G W 6.2.0-rc7-syzkaller-00011-g05ecb680708a-dirty #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023
==================================================================