==================================================================
BUG: KCSAN: data-race in ksys_write / ksys_write

write to 0xffff88813ede1640 of 8 bytes by task 20994 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+0x59/0x120 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x63/0x6b

read to 0xffff88813ede1640 of 8 bytes by task 20992 on cpu 0:
 ksys_write+0xad/0x1a0 fs/read_write.c:640
 __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+0x59/0x120 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x63/0x6b

value changed: 0x0000000000000364 -> 0x0000000000000c6a

Reported by Kernel Concurrency Sanitizer on:
CPU: 0 PID: 20992 Comm: syz-executor.2 Not tainted 6.8.0-rc1-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023
==================================================================