================================================================== BUG: KCSAN: data-race in touch_atime / touch_atime write to 0xffff88810692fcd8 of 8 bytes by task 8864 on cpu 0: 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_lookupat+0x72/0x2b0 fs/namei.c:2484 do_o_path+0x44/0x120 fs/namei.c:3770 path_openat+0x1a73/0x1d80 fs/namei.c:3792 do_filp_open+0xf7/0x200 fs/namei.c:3826 do_sys_openat2+0xab/0x120 fs/open.c:1406 do_sys_open fs/open.c:1421 [inline] __do_sys_openat fs/open.c:1437 [inline] __se_sys_openat fs/open.c:1432 [inline] __x64_sys_openat+0xf3/0x120 fs/open.c:1432 x64_sys_call+0x2cad/0x2d30 arch/x86/include/generated/asm/syscalls_64.h:258 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+0x77/0x7f read to 0xffff88810692fcd8 of 8 bytes by task 8863 on cpu 1: 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_mkdir fs/namei.c:4166 [inline] __se_sys_mkdir fs/namei.c:4164 [inline] __x64_sys_mkdir+0x44/0x50 fs/namei.c:4164 x64_sys_call+0x10aa/0x2d30 arch/x86/include/generated/asm/syscalls_64.h:84 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+0x77/0x7f value changed: 0x000000000882f1bd -> 0x000000001036af5f Reported by Kernel Concurrency Sanitizer on: CPU: 1 PID: 8863 Comm: syz-executor.3 Tainted: G W 6.9.0-rc3-syzkaller-00365-g399f4dae683a #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 ==================================================================