syzbot

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BUG: KCSAN: data-race in llc_ui_autoport / llc_ui_autoport

write to 0xffffffff85dea928 of 2 bytes by task 10477 on cpu 0:
 llc_ui_autoport+0x32b/0x340
 llc_ui_autobind+0x143/0x370 net/llc/af_llc.c:300
 llc_ui_connect+0x100/0x650 net/llc/af_llc.c:500
 __sys_connect_file net/socket.c:1976 [inline]
 __sys_connect+0x197/0x1b0 net/socket.c:1993
 __do_sys_connect net/socket.c:2003 [inline]
 __se_sys_connect net/socket.c:2000 [inline]
 __x64_sys_connect+0x3d/0x50 net/socket.c:2000
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd

read to 0xffffffff85dea928 of 2 bytes by task 10478 on cpu 1:
 llc_ui_autoport+0x17/0x340 net/llc/af_llc.c:247
 llc_ui_autobind+0x143/0x370 net/llc/af_llc.c:300
 llc_ui_connect+0x100/0x650 net/llc/af_llc.c:500
 __sys_connect_file net/socket.c:1976 [inline]
 __sys_connect+0x197/0x1b0 net/socket.c:1993
 __do_sys_connect net/socket.c:2003 [inline]
 __se_sys_connect net/socket.c:2000 [inline]
 __x64_sys_connect+0x3d/0x50 net/socket.c:2000
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd

value changed: 0x00ca -> 0x00cc

Reported by Kernel Concurrency Sanitizer on:
CPU: 1 PID: 10478 Comm: syz-executor.0 Not tainted 6.2.0-rc5-syzkaller-00027-gfb6e71db53f3-dirty #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023
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