================================================================== BUG: KCSAN: data-race in pipe_lock / pipe_release read-write to 0xffff88813b45706c of 4 bytes by task 25728 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:320 ____fput+0x15/0x20 fs/file_table.c:348 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 0xffff88813b45706c of 4 bytes by task 25730 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:1010 do_splice+0xc05/0xd80 fs/splice.c:1099 __do_splice fs/splice.c:1139 [inline] __do_sys_splice fs/splice.c:1346 [inline] __se_sys_splice+0x2aa/0x380 fs/splice.c:1328 __x64_sys_splice+0x78/0x90 fs/splice.c:1328 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: 25730 Comm: syz-executor.3 Not tainted 6.2.0-rc8-syzkaller-00021-ge1c04510f521-dirty #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023 ==================================================================