syzbot

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proc_dir_entry 'can-bcm/4584' already registered
WARNING: CPU: 0 PID: 5082 at fs/proc/generic.c:376 proc_register+0x34d/0x4f0 fs/proc/generic.c:375
Modules linked in:
CPU: 0 PID: 5082 Comm: syz-executor511 Not tainted 6.9.0-rc6-syzkaller-00290-gb9158815de52 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
RIP: 0010:proc_register+0x34d/0x4f0 fs/proc/generic.c:375
Code: 24 08 4c 8b 64 24 28 48 8b 6c 24 20 74 08 48 89 ef e8 67 bb c6 ff 48 8b 55 00 48 c7 c7 00 a9 da 8b 48 89 de e8 34 8c 24 ff 90 <0f> 0b 90 90 48 c7 c7 a0 53 4a 8e e8 73 06 57 09 48 8b 44 24 30 42
RSP: 0018:ffffc900036efc28 EFLAGS: 00010246
RAX: 183a3d9759bf8d00 RBX: ffff88802a9d14a4 RCX: ffff888022165a00
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffff88801f691218 R08: ffffffff81588f12 R09: fffffbfff1c39b5c
R10: dffffc0000000000 R11: fffffbfff1c39b5c R12: ffff88801f6911d4
R13: 0000000000000004 R14: dffffc0000000000 R15: ffff88801f691140
FS:  000055555e88b380(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f33a56dd3c0 CR3: 00000000758cc000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 proc_create_net_single+0x154/0x1b0 fs/proc/proc_net.c:219
 bcm_connect+0x2a7/0x4a0 net/can/bcm.c:1673
 __sys_connect_file net/socket.c:2048 [inline]
 __sys_connect+0x2df/0x310 net/socket.c:2065
 __do_sys_connect net/socket.c:2075 [inline]
 __se_sys_connect net/socket.c:2072 [inline]
 __x64_sys_connect+0x7a/0x90 net/socket.c:2072
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf5/0x240 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f33a565f519
Code: 48 83 c4 28 c3 e8 d7 19 00 00 0f 1f 80 00 00 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffed810b7f8 EFLAGS: 00000246 ORIG_RAX: 000000000000002a
RAX: ffffffffffffffda RBX: 00007f33a56ac390 RCX: 00007f33a565f519
RDX: 0000000000000010 RSI: 00000000200002c0 RDI: 0000000000000004
RBP: 0000000000000003 R08: 0000000000000000 R09: 0000555500000000
R10: 0000555500000000 R11: 0000000000000246 R12: 00007ffed810b840
R13: 00007ffed810b810 R14: 0000000000000001 R15: 00007ffed810b840
 </TASK>