================================================================== BUG: KCSAN: data-race in vfs_readlink / vfs_readlink write to 0xffff88800f20a722 of 2 bytes by task 13461 on cpu 1: vfs_readlink+0x20b/0x260 fs/namei.c:4800 do_readlinkat+0x170/0x200 fs/stat.c:429 __do_sys_readlinkat fs/stat.c:444 [inline] __se_sys_readlinkat fs/stat.c:441 [inline] __x64_sys_readlinkat+0x4f/0x60 fs/stat.c:441 do_syscall_64+0x39/0x80 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xae read to 0xffff88800f20a722 of 2 bytes by task 13462 on cpu 0: vfs_readlink+0x56/0x260 fs/namei.c:4792 do_readlinkat+0x170/0x200 fs/stat.c:429 __do_sys_readlinkat fs/stat.c:444 [inline] __se_sys_readlinkat fs/stat.c:441 [inline] __x64_sys_readlinkat+0x4f/0x60 fs/stat.c:441 do_syscall_64+0x39/0x80 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xae Reported by Kernel Concurrency Sanitizer on: CPU: 0 PID: 13462 Comm: systemd-udevd Not tainted 5.12.0-rc2-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ==================================================================