================================================================== BUG: KCSAN: data-race in copy_process / task_dump_owner write to 0xffff8880291cd02c of 4 bytes by task 31703 on cpu 1: copy_process+0x5b4/0x2e00 kernel/fork.c:1971 kernel_clone+0x14b/0x690 kernel/fork.c:2462 __do_sys_clone kernel/fork.c:2579 [inline] __se_sys_clone kernel/fork.c:2563 [inline] __x64_sys_clone+0xc8/0xf0 kernel/fork.c:2563 do_syscall_64+0x39/0x80 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 read to 0xffff8880291cd02c of 4 bytes by task 31705 on cpu 0: task_dump_owner+0x2b/0x1b0 fs/proc/base.c:1823 pid_update_inode fs/proc/base.c:1965 [inline] pid_revalidate+0x69/0x110 fs/proc/base.c:1988 lookup_fast+0x208/0x370 fs/namei.c:768 walk_component+0x5c/0x350 fs/namei.c:1857 link_path_walk+0x491/0x760 fs/namei.c:2182 path_openat+0x19c/0x20a0 fs/namei.c:3367 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_openat fs/open.c:1204 [inline] __se_sys_openat fs/open.c:1199 [inline] __x64_sys_openat+0xef/0x110 fs/open.c:1199 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: 0 PID: 31705 Comm: syz-executor.4 Not tainted 5.11.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ==================================================================