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BUG: KCSAN: data-race in ksys_write / ksys_write

write to 0xffff88812e840368 of 8 bytes by task 4592 on cpu 0:
 ksys_write+0x11b/0x1a0 fs/read_write.c:646
 __do_sys_write fs/read_write.c:656 [inline]
 __se_sys_write fs/read_write.c:653 [inline]
 __x64_sys_write+0x3e/0x50 fs/read_write.c:653
 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

write to 0xffff88812e840368 of 8 bytes by task 4591 on cpu 1:
 ksys_write+0x11b/0x1a0 fs/read_write.c:646
 __do_sys_write fs/read_write.c:656 [inline]
 __se_sys_write fs/read_write.c:653 [inline]
 __x64_sys_write+0x3e/0x50 fs/read_write.c:653
 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

value changed: 0x000000000000001e -> 0x0000000000000022

Reported by Kernel Concurrency Sanitizer on:
CPU: 1 PID: 4591 Comm: syz-executor.2 Not tainted 5.18.0-syzkaller-13710-g744983d87842-dirty #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
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