==================================================================
BUG: KCSAN: data-race in generic_fillattr / task_dump_owner

read to 0xffff8881256ec590 of 4 bytes by task 13099 on cpu 0:
 generic_fillattr+0xc7/0x1e0 fs/stat.c:40
 pid_getattr+0x74/0x1a0 fs/proc/base.c:1790
 vfs_getattr_nosec+0x12e/0x170 fs/stat.c:81
 vfs_getattr+0x54/0x70 fs/stat.c:118
 vfs_statx+0x102/0x190 fs/stat.c:191
 vfs_stat include/linux/fs.h:3249 [inline]
 __do_sys_newstat+0x51/0xb0 fs/stat.c:341
 __se_sys_newstat fs/stat.c:337 [inline]
 __x64_sys_newstat+0x3a/0x50 fs/stat.c:337
 do_syscall_64+0xcc/0x3a0 arch/x86/entry/common.c:294
 entry_SYSCALL_64_after_hwframe+0x44/0xa9

write to 0xffff8881256ec590 of 4 bytes by task 13097 on cpu 1:
 task_dump_owner+0xe6/0x260 fs/proc/base.c:1743
 pid_update_inode+0x3c/0x70 fs/proc/base.c:1818
 pid_revalidate+0x91/0x120 fs/proc/base.c:1841
 d_revalidate fs/namei.c:758 [inline]
 d_revalidate fs/namei.c:755 [inline]
 lookup_fast+0x6ac/0x6c0 fs/namei.c:1613
 walk_component+0x6d/0xd90 fs/namei.c:1798
 link_path_walk.part.0+0x5d3/0xa90 fs/namei.c:2128
 link_path_walk fs/namei.c:2059 [inline]
 path_openat+0x14f/0x3580 fs/namei.c:3536
 do_filp_open+0x11e/0x1b0 fs/namei.c:3567
 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/0x3a0 arch/x86/entry/common.c:294
 entry_SYSCALL_64_after_hwframe+0x44/0xa9

Reported by Kernel Concurrency Sanitizer on:
CPU: 1 PID: 13097 Comm: ps Not tainted 5.5.0-rc1-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
==================================================================