================================================================== BUG: KCSAN: data-race in __mark_inode_dirty / __mark_inode_dirty write to 0xffff888103206de0 of 8 bytes by task 2284 on cpu 1: __mark_inode_dirty+0x1bc/0x6c0 fs/fs-writeback.c:2402 generic_update_time fs/inode.c:1856 [inline] inode_update_time fs/inode.c:1869 [inline] touch_atime+0x1c4/0x2e0 fs/inode.c:1941 pick_link fs/namei.c:1801 [inline] step_into+0x914/0xf70 fs/namei.c:1876 walk_component+0x1a1/0x360 fs/namei.c:2026 lookup_last fs/namei.c:2475 [inline] path_lookupat+0x12d/0x3d0 fs/namei.c:2499 filename_lookup+0x130/0x310 fs/namei.c:2528 vfs_statx+0xa3/0x3c0 fs/stat.c:228 vfs_fstatat fs/stat.c:255 [inline] __do_sys_newfstatat fs/stat.c:426 [inline] __se_sys_newfstatat+0x8a/0x290 fs/stat.c:420 __x64_sys_newfstatat+0x51/0x60 fs/stat.c:420 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae read to 0xffff888103206de0 of 8 bytes by task 1910 on cpu 0: __mark_inode_dirty+0xd7/0x6c0 fs/fs-writeback.c:2388 generic_update_time fs/inode.c:1856 [inline] inode_update_time fs/inode.c:1869 [inline] touch_atime+0x1c4/0x2e0 fs/inode.c:1941 pick_link fs/namei.c:1801 [inline] step_into+0x914/0xf70 fs/namei.c:1876 walk_component+0x1a1/0x360 fs/namei.c:2026 lookup_last fs/namei.c:2475 [inline] path_lookupat+0x12d/0x3d0 fs/namei.c:2499 filename_lookup+0x130/0x310 fs/namei.c:2528 vfs_statx+0xa3/0x3c0 fs/stat.c:228 vfs_fstatat fs/stat.c:255 [inline] __do_sys_newfstatat fs/stat.c:426 [inline] __se_sys_newfstatat+0x8a/0x290 fs/stat.c:420 __x64_sys_newfstatat+0x51/0x60 fs/stat.c:420 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae value changed: 0x0000000000000000 -> 0x0000000000000001 Reported by Kernel Concurrency Sanitizer on: CPU: 0 PID: 1910 Comm: udevd Not tainted 5.17.0-syzkaller-07593-g52deda9551a0-dirty #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ================================================================== udevd[1910]: inotify_add_watch(7, /dev/loop1p148, 10) failed: No such file or directory