================================================================== BUG: KCSAN: data-race in fast_dput / vfs_unlink write to 0xffff888105fc7600 of 4 bytes by task 19391 on cpu 1: dont_mount include/linux/dcache.h:358 [inline] vfs_unlink+0x289/0x400 fs/namei.c:4027 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 0xffff888105fc7600 of 4 bytes by task 18731 on cpu 0: fast_dput+0x14/0x1c0 fs/dcache.c:749 dput+0x26/0x360 fs/dcache.c:875 path_put+0x1b/0x30 fs/namei.c:546 do_readlinkat+0x188/0x200 fs/stat.c:440 __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 Reported by Kernel Concurrency Sanitizer on: CPU: 0 PID: 18731 Comm: systemd-udevd Not tainted 5.12.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ==================================================================