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BUG: KCSAN: data-race in console_unlock / printk_kthread_func

write to 0xffffffff85c34eb0 of 1 bytes by task 14017 on cpu 1:
 console_kthreads_unblock kernel/printk/printk.c:336 [inline]
 __console_unlock kernel/printk/printk.c:2818 [inline]
 console_unlock+0x4d5/0x700 kernel/printk/printk.c:3075
 do_con_write+0x352e/0x3590
 con_put_char+0x35/0x60 drivers/tty/vt/vt.c:3303
 tty_put_char+0x5f/0xa0 drivers/tty/tty_io.c:3143
 __process_echoes+0x3a9/0x650 drivers/tty/n_tty.c:711
 flush_echoes drivers/tty/n_tty.c:812 [inline]
 __receive_buf drivers/tty/n_tty.c:1564 [inline]
 n_tty_receive_buf_common+0x4a0b/0x4c40 drivers/tty/n_tty.c:1658
 n_tty_receive_buf2+0x2e/0x40 drivers/tty/n_tty.c:1693
 tty_ldisc_receive_buf+0x5b/0xf0 drivers/tty/tty_buffer.c:452
 paste_selection+0x215/0x300 drivers/tty/vt/selection.c:408
 tioclinux+0xee/0x3e0 drivers/tty/vt/vt.c:3204
 vt_ioctl+0x263/0x13c0 drivers/tty/vt/vt_ioctl.c:762
 tty_ioctl+0x6be/0x970 drivers/tty/tty_io.c:2778
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:870 [inline]
 __se_sys_ioctl+0xcb/0x140 fs/ioctl.c:856
 __x64_sys_ioctl+0x3f/0x50 fs/ioctl.c:856
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x46/0xb0

read to 0xffffffff85c34eb0 of 1 bytes by task 1399 on cpu 0:
 printer_should_wake kernel/printk/printk.c:3731 [inline]
 printk_kthread_func+0x481/0xb60 kernel/printk/printk.c:3795
 kthread+0x1a9/0x1e0 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30

value changed: 0x01 -> 0x00

Reported by Kernel Concurrency Sanitizer on:
CPU: 0 PID: 1399 Comm: pr/netcon0 Not tainted 5.19.0-rc2-syzkaller-00050-g018ab4fabddd-dirty #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
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