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BUG: KCSAN: data-race in fifo_open / wait_for_partner

read-write to 0xffff8881049e412c of 4 bytes by task 9258 on cpu 0:
 put_pipe_info fs/pipe.c:704 [inline]
 fifo_open+0x2a6/0x5e0 fs/pipe.c:1214
 do_dentry_open+0x5b3/0x930 fs/open.c:882
 vfs_open+0x47/0x50 fs/open.c:1013
 do_open fs/namei.c:3557 [inline]
 path_openat+0x16b5/0x1b70 fs/namei.c:3714
 do_filp_open+0xf6/0x200 fs/namei.c:3741
 do_sys_openat2+0xb5/0x2a0 fs/open.c:1310
 do_sys_open fs/open.c:1326 [inline]
 __do_sys_open fs/open.c:1334 [inline]
 __se_sys_open fs/open.c:1330 [inline]
 __x64_sys_open+0xe6/0x110 fs/open.c:1330
 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

read to 0xffff8881049e412c of 4 bytes by task 9256 on cpu 1:
 pipe_lock_nested fs/pipe.c:81 [inline]
 pipe_lock fs/pipe.c:90 [inline]
 wait_for_partner+0x105/0x1d0 fs/pipe.c:1081
 fifo_open+0x483/0x5e0 fs/pipe.c:1148
 do_dentry_open+0x5b3/0x930 fs/open.c:882
 vfs_open+0x47/0x50 fs/open.c:1013
 do_open fs/namei.c:3557 [inline]
 path_openat+0x16b5/0x1b70 fs/namei.c:3714
 do_filp_open+0xf6/0x200 fs/namei.c:3741
 do_sys_openat2+0xb5/0x2a0 fs/open.c:1310
 do_sys_open fs/open.c:1326 [inline]
 __do_sys_open fs/open.c:1334 [inline]
 __se_sys_open fs/open.c:1330 [inline]
 __x64_sys_open+0xe6/0x110 fs/open.c:1330
 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: 1 PID: 9256 Comm: syz-executor.0 Not tainted 6.2.0-rc8-syzkaller-00145-g5e725d112e1a-dirty #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023
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