================================================================== BUG: KCSAN: data-race in inode_update_timestamps / inode_update_timestamps write to 0xffff888139df09b0 of 8 bytes by task 12039 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 file_accessed include/linux/fs.h:2437 [inline] iterate_dir+0x2db/0x300 fs/readdir.c:113 __do_sys_getdents64 fs/readdir.c:409 [inline] __se_sys_getdents64+0x88/0x1a0 fs/readdir.c:394 __x64_sys_getdents64+0x43/0x50 fs/readdir.c:394 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 0xffff888139df09b0 of 8 bytes by task 8500 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 file_accessed include/linux/fs.h:2437 [inline] iterate_dir+0x2db/0x300 fs/readdir.c:113 __do_sys_getdents64 fs/readdir.c:409 [inline] __se_sys_getdents64+0x88/0x1a0 fs/readdir.c:394 __x64_sys_getdents64+0x43/0x50 fs/readdir.c:394 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: 0x000000002063b0fe -> 0x0000000020fc477e Reported by Kernel Concurrency Sanitizer on: CPU: 1 PID: 8500 Comm: udevd Not tainted 6.8.0-rc1-syzkaller-00029-g615d30064886 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023 ==================================================================