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

write to 0xffff88811802f848 of 8 bytes by task 8362 on cpu 1:
 inode_set_atime_to_ts include/linux/fs.h:1566 [inline]
 inode_update_timestamps fs/inode.c:1878 [inline]
 generic_update_time fs/inode.c:1900 [inline]
 inode_update_time fs/inode.c:1920 [inline]
 touch_atime+0x1f3/0x350 fs/inode.c:1992
 pick_link+0x31a/0x7e0 fs/namei.c:1790
 step_into+0x725/0x810 fs/namei.c:1874
 walk_component fs/namei.c:2010 [inline]
 link_path_walk+0x49d/0x810 fs/namei.c:2331
 path_parentat fs/namei.c:2532 [inline]
 __filename_parentat+0x13c/0x3c0 fs/namei.c:2556
 filename_parentat fs/namei.c:2574 [inline]
 filename_create+0x77/0x2b0 fs/namei.c:3873
 do_mkdirat+0x63/0x2a0 fs/namei.c:4138
 __do_sys_mkdirat fs/namei.c:4161 [inline]
 __se_sys_mkdirat fs/namei.c:4159 [inline]
 __x64_sys_mkdirat+0x50/0x60 fs/namei.c:4159
 do_syscall_64+0xd3/0x1d0
 entry_SYSCALL_64_after_hwframe+0x72/0x7a

read to 0xffff88811802f848 of 8 bytes by task 8361 on cpu 0:
 inode_get_atime include/linux/fs.h:1560 [inline]
 inode_update_timestamps fs/inode.c:1875 [inline]
 generic_update_time fs/inode.c:1900 [inline]
 inode_update_time fs/inode.c:1920 [inline]
 touch_atime+0x1a0/0x350 fs/inode.c:1992
 pick_link+0x31a/0x7e0 fs/namei.c:1790
 step_into+0x725/0x810 fs/namei.c:1874
 walk_component fs/namei.c:2010 [inline]
 link_path_walk+0x49d/0x810 fs/namei.c:2331
 path_parentat fs/namei.c:2532 [inline]
 __filename_parentat+0x13c/0x3c0 fs/namei.c:2556
 filename_parentat fs/namei.c:2574 [inline]
 filename_create+0x77/0x2b0 fs/namei.c:3873
 do_mkdirat+0x63/0x2a0 fs/namei.c:4138
 __do_sys_mkdirat fs/namei.c:4161 [inline]
 __se_sys_mkdirat fs/namei.c:4159 [inline]
 __x64_sys_mkdirat+0x50/0x60 fs/namei.c:4159
 do_syscall_64+0xd3/0x1d0
 entry_SYSCALL_64_after_hwframe+0x72/0x7a

value changed: 0x000000000ac85e9d -> 0x000000000e1566bd

Reported by Kernel Concurrency Sanitizer on:
CPU: 0 PID: 8361 Comm: syz-executor.0 Tainted: G        W          6.9.0-rc3-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
==================================================================