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BUG: KCSAN: data-race in ksys_write / ksys_write

write to 0xffff8881348ae840 of 8 bytes by task 1999 on cpu 0:
 ksys_write+0x11e/0x1a0 fs/read_write.c:645
 __do_sys_write fs/read_write.c:655 [inline]
 __se_sys_write fs/read_write.c:652 [inline]
 __x64_sys_write+0x42/0x50 fs/read_write.c:652
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x1d0 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x63/0x6b

write to 0xffff8881348ae840 of 8 bytes by task 1993 on cpu 1:
 ksys_write+0x11e/0x1a0 fs/read_write.c:645
 __do_sys_write fs/read_write.c:655 [inline]
 __se_sys_write fs/read_write.c:652 [inline]
 __x64_sys_write+0x42/0x50 fs/read_write.c:652
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x1d0 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x63/0x6b

value changed: 0x0000000000000c78 -> 0x0000000000000db0

Reported by Kernel Concurrency Sanitizer on:
CPU: 1 PID: 1993 Comm: syz-executor.3 Not tainted 6.8.0-rc4-syzkaller-00388-gced590523156 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024
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