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BUG: KCSAN: data-race in atime_needs_update / touch_atime

write to 0xffff88811ac5cc90 of 4 bytes by task 6463 on cpu 1:
 inode_set_atime_to_ts include/linux/fs.h:1805 [inline]
 inode_update_timestamps fs/inode.c:2076 [inline]
 generic_update_time fs/inode.c:2098 [inline]
 inode_update_time fs/inode.c:2118 [inline]
 touch_atime+0x1e8/0x340 fs/inode.c:2190
 pick_link+0x747/0x830 fs/namei.c:1936
 step_into+0x790/0x7f0 fs/namei.c:2021
 walk_component+0x162/0x220 fs/namei.c:2157
 lookup_last fs/namei.c:2652 [inline]
 path_lookupat+0xfe/0x2a0 fs/namei.c:2676
 do_o_path+0x45/0x130 fs/namei.c:4105
 path_openat+0x1df9/0x2170 fs/namei.c:4127
 do_filp_open+0x109/0x230 fs/namei.c:4161
 io_openat2+0x272/0x390 io_uring/openclose.c:143
 io_openat+0x1b/0x30 io_uring/openclose.c:180
 __io_issue_sqe+0xfe/0x2e0 io_uring/io_uring.c:1824
 io_issue_sqe+0x56/0xa80 io_uring/io_uring.c:1847
 io_wq_submit_work+0x3f7/0x5f0 io_uring/io_uring.c:1959
 io_worker_handle_work+0x44e/0x9b0 io_uring/io-wq.c:650
 io_wq_worker+0x22e/0x860 io_uring/io-wq.c:704
 ret_from_fork+0x122/0x1b0 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245

read to 0xffff88811ac5cc90 of 4 bytes by task 6462 on cpu 0:
 atime_needs_update+0x25f/0x3e0 fs/inode.c:-1
 pick_link+0x2df/0x830 fs/namei.c:1931
 step_into+0x790/0x7f0 fs/namei.c:2021
 walk_component+0x162/0x220 fs/namei.c:2157
 lookup_last fs/namei.c:2652 [inline]
 path_lookupat+0xfe/0x2a0 fs/namei.c:2676
 do_o_path+0x45/0x130 fs/namei.c:4105
 path_openat+0x1df9/0x2170 fs/namei.c:4127
 do_filp_open+0x109/0x230 fs/namei.c:4161
 io_openat2+0x272/0x390 io_uring/openclose.c:143
 io_openat+0x1b/0x30 io_uring/openclose.c:180
 __io_issue_sqe+0xfe/0x2e0 io_uring/io_uring.c:1824
 io_issue_sqe+0x56/0xa80 io_uring/io_uring.c:1847
 io_queue_sqe io_uring/io_uring.c:2074 [inline]
 io_submit_sqe io_uring/io_uring.c:2334 [inline]
 io_submit_sqes+0x675/0x1060 io_uring/io_uring.c:2447
 __do_sys_io_uring_enter io_uring/io_uring.c:3514 [inline]
 __se_sys_io_uring_enter+0x1c1/0x1b70 io_uring/io_uring.c:3453
 __x64_sys_io_uring_enter+0x78/0x90 io_uring/io_uring.c:3453
 x64_sys_call+0x2df0/0x3000 arch/x86/include/generated/asm/syscalls_64.h:427
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xd2/0x200 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

value changed: 0x2293fa6f -> 0x232c90ef

Reported by Kernel Concurrency Sanitizer on:
CPU: 0 UID: 0 PID: 6462 Comm: syz.2.1044 Not tainted syzkaller #0 PREEMPT(voluntary) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
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