==================================================================
BUG: KCSAN: data-race in touch_atime / touch_atime

write to 0xffff888143497cd8 of 8 bytes by task 32393 on cpu 0:
 inode_set_atime_to_ts include/linux/fs.h:1541 [inline]
 inode_update_timestamps fs/inode.c:1876 [inline]
 generic_update_time fs/inode.c:1898 [inline]
 inode_update_time fs/inode.c:1918 [inline]
 touch_atime+0x1ed/0x340 fs/inode.c:1990
 pick_link+0x30c/0x7b0 fs/namei.c:1787
 step_into+0x71b/0x800 fs/namei.c:1871
 walk_component fs/namei.c:2007 [inline]
 link_path_walk+0x4d8/0x7e0 fs/namei.c:2328
 path_lookupat+0x72/0x2a0 fs/namei.c:2481
 do_o_path+0x44/0x120 fs/namei.c:3769
 path_openat+0x1a2c/0x1d40 fs/namei.c:3791
 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+0xcd/0x1d0 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x63/0x6b

read to 0xffff888143497cd8 of 8 bytes by task 32392 on cpu 1:
 inode_get_atime include/linux/fs.h:1535 [inline]
 inode_update_timestamps fs/inode.c:1873 [inline]
 generic_update_time fs/inode.c:1898 [inline]
 inode_update_time fs/inode.c:1918 [inline]
 touch_atime+0x19a/0x340 fs/inode.c:1990
 pick_link+0x30c/0x7b0 fs/namei.c:1787
 step_into+0x71b/0x800 fs/namei.c:1871
 walk_component fs/namei.c:2007 [inline]
 link_path_walk+0x4d8/0x7e0 fs/namei.c:2328
 path_parentat fs/namei.c:2529 [inline]
 __filename_parentat+0x13b/0x3c0 fs/namei.c:2553
 filename_parentat fs/namei.c:2571 [inline]
 filename_create+0x77/0x2b0 fs/namei.c:3872
 do_mkdirat+0x63/0x2a0 fs/namei.c:4137
 __do_sys_mkdirat fs/namei.c:4160 [inline]
 __se_sys_mkdirat fs/namei.c:4158 [inline]
 __x64_sys_mkdirat+0x50/0x60 fs/namei.c:4158
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x1d0 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x63/0x6b

value changed: 0x0000000006839eeb -> 0x00000000071c356b

Reported by Kernel Concurrency Sanitizer on:
CPU: 1 PID: 32392 Comm: syz-executor.1 Not tainted 6.8.0-rc4-syzkaller-00180-g4f5e5092fdbf #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024
==================================================================