================================================================== BUG: KCSAN: data-race in __d_lookup_done / __dentry_kill write to 0xffff88800cfea9c0 of 4 bytes by task 2041 on cpu 0: __d_lookup_done+0x8c/0x240 fs/dcache.c:2655 __d_add+0x31e/0x450 fs/dcache.c:2675 d_add+0x41/0x50 fs/dcache.c:2708 simple_lookup+0x85/0x90 fs/libfs.c:74 lookup_open fs/namei.c:3085 [inline] open_last_lookups fs/namei.c:3180 [inline] path_openat+0xa72/0x20a0 fs/namei.c:3368 do_filp_open+0xbd/0x1d0 fs/namei.c:3398 do_sys_openat2+0xa3/0x250 fs/open.c:1172 do_sys_open fs/open.c:1188 [inline] __do_sys_open fs/open.c:1196 [inline] __se_sys_open fs/open.c:1192 [inline] __x64_sys_open+0xe2/0x110 fs/open.c:1192 do_syscall_64+0x39/0x80 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 read to 0xffff88800cfea9c0 of 4 bytes by task 2051 on cpu 1: dentry_unlist fs/dcache.c:544 [inline] __dentry_kill+0x1ef/0x450 fs/dcache.c:575 dentry_kill fs/dcache.c:692 [inline] dput+0x208/0x420 fs/dcache.c:885 handle_mounts fs/namei.c:1389 [inline] step_into+0x444/0xeb0 fs/namei.c:1691 open_last_lookups fs/namei.c:3203 [inline] path_openat+0xfb9/0x20a0 fs/namei.c:3368 do_filp_open+0xbd/0x1d0 fs/namei.c:3398 do_sys_openat2+0xa3/0x250 fs/open.c:1172 do_sys_open fs/open.c:1188 [inline] __do_sys_open fs/open.c:1196 [inline] __se_sys_open fs/open.c:1192 [inline] __x64_sys_open+0xe2/0x110 fs/open.c:1192 do_syscall_64+0x39/0x80 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 Reported by Kernel Concurrency Sanitizer on: CPU: 1 PID: 2051 Comm: systemd-udevd Not tainted 5.11.0-rc6-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ==================================================================