================================================================== BUG: KCSAN: data-race in d_delete / lookup_fast write to 0xffff888106a58180 of 4 bytes by task 29371 on cpu 0: d_delete+0x6e/0xe0 fs/dcache.c:2504 vfs_unlink+0x3d8/0x400 fs/namei.c:4049 do_unlinkat+0x238/0x4f0 fs/namei.c:4102 __do_sys_unlink fs/namei.c:4149 [inline] __se_sys_unlink fs/namei.c:4147 [inline] __x64_sys_unlink+0x2c/0x30 fs/namei.c:4147 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0x90 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae read to 0xffff888106a58180 of 4 bytes by task 1037 on cpu 1: d_revalidate fs/namei.c:842 [inline] lookup_fast+0x15f/0x350 fs/namei.c:1595 walk_component+0x5c/0x350 fs/namei.c:1955 lookup_last fs/namei.c:2414 [inline] path_lookupat+0x12d/0x3d0 fs/namei.c:2438 filename_lookup+0x118/0x3b0 fs/namei.c:2467 user_path_at_empty+0x3b/0x50 fs/namei.c:2747 do_readlinkat+0x87/0x200 fs/stat.c:425 __do_sys_readlink fs/stat.c:458 [inline] __se_sys_readlink fs/stat.c:455 [inline] __x64_sys_readlink+0x43/0x50 fs/stat.c:455 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0x90 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae value changed: 0x00600108 -> 0x00008008 Reported by Kernel Concurrency Sanitizer on: CPU: 1 PID: 1037 Comm: systemd-udevd Not tainted 5.14.0-rc5-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ==================================================================