================================================================== BUG: KCSAN: data-race in d_delete / step_into write to 0xffff8881066a99c0 of 4 bytes by task 7025 on cpu 1: d_delete+0x6e/0xe0 fs/dcache.c:2504 vfs_unlink+0x3d8/0x400 fs/namei.c:4039 do_unlinkat+0x238/0x4f0 fs/namei.c:4092 __do_sys_unlink fs/namei.c:4139 [inline] __se_sys_unlink fs/namei.c:4137 [inline] __x64_sys_unlink+0x2c/0x30 fs/namei.c:4137 do_syscall_64+0x4a/0x90 arch/x86/entry/common.c:47 entry_SYSCALL_64_after_hwframe+0x44/0xae read to 0xffff8881066a99c0 of 4 bytes by task 1296 on cpu 0: __d_entry_type include/linux/dcache.h:395 [inline] d_is_symlink include/linux/dcache.h:425 [inline] step_into+0x158/0xec0 fs/namei.c:1776 walk_component+0x190/0x350 fs/namei.c:1948 lookup_last fs/namei.c:2397 [inline] path_lookupat+0x12d/0x570 fs/namei.c:2421 filename_lookup+0xff/0x390 fs/namei.c:2454 user_path_at_empty+0x3b/0x50 fs/namei.c:2734 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_64+0x4a/0x90 arch/x86/entry/common.c:47 entry_SYSCALL_64_after_hwframe+0x44/0xae value changed: 0x00600108 -> 0x00008008 Reported by Kernel Concurrency Sanitizer on: CPU: 0 PID: 1296 Comm: systemd-udevd Not tainted 5.13.0-rc5-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ================================================================== synth uevent: /devices/virtual/block/loop1: failed to send uevent block loop1: uevent: failed to send synthetic uevent synth uevent: /devices/virtual/block/loop4: failed to send uevent block loop4: uevent: failed to send synthetic uevent