KCSAN: data-race in __inet_hash_connect / __inet_hash

Kernel	Title	Repro	Cause bisect	Fix bisect	Count	Last	Reported	Patched	Status
upstream	KCSAN: data-race in __inet_hash_connect / __inet_hash_connect (3) net				1	1624d	1624d	0/28	auto-closed as invalid on 2020/09/22 09:01
upstream	KCSAN: data-race in __inet_hash_connect / __inet_hash_connect (2) net				1	1721d	1721d	0/28	auto-closed as invalid on 2020/06/18 13:23

================================================================== BUG: KCSAN: data-race in __inet_hash_connect / __inet_hash_connect write to 0xffffffff863b43c0 of 4 bytes by task 10248 on cpu 0: __inet_hash_connect+0x4b3/0x8b0 net/ipv4/inet_hashtables.c:715 inet_hash_connect+0x5c/0xc0 net/ipv4/inet_hashtables.c:742 tcp_v4_connect+0x693/0xc60 net/ipv4/tcp_ipv4.c:274 __inet_stream_connect+0x1c6/0x850 net/ipv4/af_inet.c:655 inet_stream_connect+0x52/0x80 net/ipv4/af_inet.c:719 __sys_connect_file+0xf4/0x100 net/socket.c:1844 __sys_connect+0x121/0x150 net/socket.c:1861 __do_sys_connect net/socket.c:1872 [inline] __se_sys_connect net/socket.c:1869 [inline] __x64_sys_connect+0x4c/0x60 net/socket.c:1869 do_syscall_64+0xcc/0x3a0 arch/x86/entry/common.c:294 entry_SYSCALL_64_after_hwframe+0x44/0xa9 read to 0xffffffff863b43c0 of 4 bytes by task 10254 on cpu 1: __inet_hash_connect+0x49c/0x8b0 net/ipv4/inet_hashtables.c:715 inet_hash_connect+0x5c/0xc0 net/ipv4/inet_hashtables.c:742 tcp_v4_connect+0x693/0xc60 net/ipv4/tcp_ipv4.c:274 __inet_stream_connect+0x1c6/0x850 net/ipv4/af_inet.c:655 inet_stream_connect+0x52/0x80 net/ipv4/af_inet.c:719 __sys_connect_file+0xf4/0x100 net/socket.c:1844 __sys_connect+0x121/0x150 net/socket.c:1861 __do_sys_connect net/socket.c:1872 [inline] __se_sys_connect net/socket.c:1869 [inline] __x64_sys_connect+0x4c/0x60 net/socket.c:1869 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: 10254 Comm: syz-executor.1 Not tainted 5.5.0-rc1-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ==================================================================