==================================================================
BUG: KCSAN: data-race in pipe_lock / pipe_release

read-write to 0xffff88810ac4c2ac of 4 bytes by task 778 on cpu 1:
 put_pipe_info fs/pipe.c:704 [inline]
 pipe_release+0x164/0x1c0 fs/pipe.c:734
 __fput+0x245/0x570 fs/file_table.c:321
 ____fput+0x15/0x20 fs/file_table.c:349
 task_work_run+0x123/0x160 kernel/task_work.c:179
 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
 exit_to_user_mode_loop+0xcf/0xe0 kernel/entry/common.c:171
 exit_to_user_mode_prepare+0x6a/0xa0 kernel/entry/common.c:203
 __syscall_exit_to_user_mode_work kernel/entry/common.c:285 [inline]
 syscall_exit_to_user_mode+0x26/0x140 kernel/entry/common.c:296
 do_syscall_64+0x4d/0xc0 arch/x86/entry/common.c:86
 entry_SYSCALL_64_after_hwframe+0x63/0xcd

read to 0xffff88810ac4c2ac of 4 bytes by task 779 on cpu 0:
 pipe_lock_nested fs/pipe.c:81 [inline]
 pipe_lock+0x17/0x40 fs/pipe.c:90
 splice_file_to_pipe+0x2e/0x350 fs/splice.c:1101
 do_splice+0xc05/0xd80 fs/splice.c:1190
 __do_splice fs/splice.c:1230 [inline]
 __do_sys_splice fs/splice.c:1437 [inline]
 __se_sys_splice+0x2aa/0x380 fs/splice.c:1419
 __x64_sys_splice+0x78/0x90 fs/splice.c:1419
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd

value changed: 0x00000002 -> 0x00000001

Reported by Kernel Concurrency Sanitizer on:
CPU: 0 PID: 779 Comm: syz-executor.2 Not tainted 6.3.0-rc2-syzkaller-00050-g9c1bec9c0b08 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023
==================================================================