KCSAN: data-race in tcp_disconnect / tcp

Kernel	Title	Rank 🛈	Count	Last	Reported	Patched	Status
upstream	KCSAN: data-race in tcp_disconnect / tcp_poll (5) net	6	1	1520d	1520d	0/29	auto-closed as invalid on 2022/07/18 21:08
upstream	KCSAN: data-race in tcp_disconnect / tcp_poll (4) net	6	8	1618d	1654d	0/29	auto-closed as invalid on 2022/04/12 08:00
upstream	KCSAN: data-race in tcp_disconnect / tcp_poll (6) net	6	1	1414d	1414d	0/29	auto-obsoleted due to no activity on 2022/11/01 19:29
upstream	KCSAN: data-race in tcp_disconnect / tcp_poll (7) net	6	2	1213d	1192d	22/29	fixed on 2023/07/01 16:05
upstream	KCSAN: data-race in tcp_disconnect / tcp_poll net	6	2	2059d	2070d	0/29	auto-closed as invalid on 2021/01/25 19:57
upstream	KCSAN: data-race in tcp_disconnect / tcp_poll (3) net	6	4	1702d	1730d	0/29	auto-closed as invalid on 2022/01/18 12:46

================================================================== BUG: KCSAN: data-race in tcp_disconnect / tcp_poll write to 0xffff8881328235b8 of 1 bytes by task 9518 on cpu 1: tcp_disconnect+0x62c/0xeb0 net/ipv4/tcp.c:2979 __inet_stream_connect+0x621/0x6e0 net/ipv4/af_inet.c:716 inet_stream_connect+0x44/0x70 net/ipv4/af_inet.c:728 __sys_connect_file+0xd3/0xe0 net/socket.c:1896 io_connect fs/io_uring.c:5191 [inline] io_issue_sqe+0x13a8/0x67b0 fs/io_uring.c:6695 __io_queue_sqe+0x34/0x460 fs/io_uring.c:6960 io_queue_sqe fs/io_uring.c:7011 [inline] io_submit_sqe+0x88b/0x3eb0 fs/io_uring.c:7187 io_submit_sqes+0x505/0xde0 fs/io_uring.c:7293 __do_sys_io_uring_enter fs/io_uring.c:9986 [inline] __se_sys_io_uring_enter+0x20d/0xb30 fs/io_uring.c:9928 __x64_sys_io_uring_enter+0x74/0x80 fs/io_uring.c:9928 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x44/0xa0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae read to 0xffff8881328235b8 of 1 bytes by task 9443 on cpu 0: tcp_poll+0x100/0x580 net/ipv4/tcp.c:549 sock_poll+0x23e/0x260 net/socket.c:1302 vfs_poll include/linux/poll.h:90 [inline] __io_arm_poll_handler+0x1af/0x5c0 fs/io_uring.c:5569 io_arm_poll_handler+0x317/0x480 fs/io_uring.c:5644 __io_queue_sqe+0xa7/0x460 fs/io_uring.c:6983 io_queue_sqe fs/io_uring.c:7011 [inline] io_submit_sqe+0x88b/0x3eb0 fs/io_uring.c:7187 io_submit_sqes+0x505/0xde0 fs/io_uring.c:7293 __do_sys_io_uring_enter fs/io_uring.c:9986 [inline] __se_sys_io_uring_enter+0x20d/0xb30 fs/io_uring.c:9928 __x64_sys_io_uring_enter+0x74/0x80 fs/io_uring.c:9928 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x44/0xa0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae value changed: 0x03 -> 0x00 Reported by Kernel Concurrency Sanitizer on: CPU: 0 PID: 9443 Comm: syz-executor.4 Not tainted 5.15.0-rc4-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ==================================================================