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BUG: KCSAN: data-race in inode_update_timestamps / inode_update_timestamps

write to 0xffff88811d702970 of 8 bytes by task 10684 on cpu 0:
 inode_set_atime_to_ts include/linux/fs.h:1541 [inline]
 inode_update_timestamps+0x4d1/0x560 fs/inode.c:1876
 generic_update_time fs/inode.c:1898 [inline]
 inode_update_time fs/inode.c:1918 [inline]
 touch_atime+0x15c/0x2d0 fs/inode.c:1990
 pick_link+0x30c/0x7b0 fs/namei.c:1787
 step_into+0x71b/0x800 fs/namei.c:1871
 open_last_lookups fs/namei.c:3588 [inline]
 path_openat+0x10da/0x1d30 fs/namei.c:3795
 do_filp_open+0xf6/0x200 fs/namei.c:3825
 do_sys_openat2+0xab/0x110 fs/open.c:1404
 do_sys_open fs/open.c:1419 [inline]
 __do_sys_openat fs/open.c:1435 [inline]
 __se_sys_openat fs/open.c:1430 [inline]
 __x64_sys_openat+0xf3/0x120 fs/open.c:1430
 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 0xffff88811d702970 of 8 bytes by task 10683 on cpu 1:
 inode_get_atime include/linux/fs.h:1535 [inline]
 inode_update_timestamps+0x498/0x560 fs/inode.c:1873
 generic_update_time fs/inode.c:1898 [inline]
 inode_update_time fs/inode.c:1918 [inline]
 touch_atime+0x15c/0x2d0 fs/inode.c:1990
 pick_link+0x30c/0x7b0 fs/namei.c:1787
 step_into+0x71b/0x800 fs/namei.c:1871
 open_last_lookups fs/namei.c:3588 [inline]
 path_openat+0x10da/0x1d30 fs/namei.c:3795
 do_filp_open+0xf6/0x200 fs/namei.c:3825
 do_sys_openat2+0xab/0x110 fs/open.c:1404
 do_sys_open fs/open.c:1419 [inline]
 __do_sys_openat fs/open.c:1435 [inline]
 __se_sys_openat fs/open.c:1430 [inline]
 __x64_sys_openat+0xf3/0x120 fs/open.c:1430
 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: 0x000000003ab70451 -> 0x000000003b4f9ad1

Reported by Kernel Concurrency Sanitizer on:
CPU: 1 PID: 10683 Comm: syz-executor.4 Not tainted 6.8.0-rc2-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023
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