================================================================== BUG: KCSAN: data-race in futex_wait_queue_me / task_dump_owner read to 0xffff888122109124 of 4 bytes by task 13184 on cpu 1: task_dump_owner+0x43/0x260 fs/proc/base.c:1698 pid_update_inode+0x3c/0x70 fs/proc/base.c:1818 pid_revalidate+0x91/0xd0 fs/proc/base.c:1841 d_revalidate fs/namei.c:758 [inline] d_revalidate fs/namei.c:755 [inline] lookup_fast+0x6f2/0x700 fs/namei.c:1607 walk_component+0x6d/0xe70 fs/namei.c:1796 link_path_walk.part.0+0x354/0xa90 fs/namei.c:2128 link_path_walk fs/namei.c:2062 [inline] path_openat+0x14f/0x36e0 fs/namei.c:3524 do_filp_open+0x11e/0x1b0 fs/namei.c:3555 do_sys_open+0x3b3/0x4f0 fs/open.c:1097 __do_sys_open fs/open.c:1115 [inline] __se_sys_open fs/open.c:1110 [inline] __x64_sys_open+0x55/0x70 fs/open.c:1110 do_syscall_64+0xcc/0x370 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x44/0xa9 write to 0xffff888122109124 of 4 bytes by task 13179 on cpu 0: freezer_do_not_count include/linux/freezer.h:109 [inline] freezable_schedule include/linux/freezer.h:171 [inline] futex_wait_queue_me+0x17d/0x290 kernel/futex.c:2627 futex_wait+0x19b/0x3f0 kernel/futex.c:2733 do_futex+0xe9/0x18d0 kernel/futex.c:3644 __do_sys_futex kernel/futex.c:3705 [inline] __se_sys_futex kernel/futex.c:3673 [inline] __x64_sys_futex+0x2cd/0x3f0 kernel/futex.c:3673 do_syscall_64+0xcc/0x370 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x44/0xa9 Reported by Kernel Concurrency Sanitizer on: CPU: 0 PID: 13179 Comm: syz-executor.3 Not tainted 5.4.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ==================================================================