syzbot

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proc_dir_entry 'can-bcm/84976' already registered
WARNING: CPU: 1 PID: 16568 at fs/proc/generic.c:377 proc_register+0x347/0x4e0 fs/proc/generic.c:376
Modules linked in:
CPU: 1 PID: 16568 Comm: syz-executor.4 Not tainted 6.1.85-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
RIP: 0010:proc_register+0x347/0x4e0 fs/proc/generic.c:376
Code: 7c 24 08 4c 8b 64 24 28 48 8b 6c 24 20 74 08 48 89 ef e8 dc db cb ff 48 8b 55 00 48 c7 c7 c0 d7 fb 8a 48 89 de e8 c9 5b 3c ff <0f> 0b 48 c7 c7 40 96 27 8d e8 8b 73 7e 08 48 8b 44 24 30 42 0f b6
RSP: 0018:ffffc900058e7c48 EFLAGS: 00010246
RAX: e07047a79880b700 RBX: ffff888028772d64 RCX: 0000000000040000
RDX: ffffc9000baba000 RSI: 0000000000006378 RDI: 0000000000006379
RBP: ffff88806635cad8 R08: ffffffff81528eae R09: ffffed1017324f1c
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff88806635ca94
R13: 0000000000000005 R14: dffffc0000000000 R15: ffff88806635ca00
FS:  00007fd958c0b6c0(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fd958c0bd58 CR3: 000000004b8da000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 proc_create_net_single+0x150/0x1a0 fs/proc/proc_net.c:219
 bcm_connect+0x29e/0x490 net/can/bcm.c:1631
 __sys_connect_file net/socket.c:2006 [inline]
 __sys_connect+0x2c9/0x300 net/socket.c:2023
 __do_sys_connect net/socket.c:2033 [inline]
 __se_sys_connect net/socket.c:2030 [inline]
 __x64_sys_connect+0x76/0x80 net/socket.c:2030
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7fd957e7de69
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fd958c0b0c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002a
RAX: ffffffffffffffda RBX: 00007fd957fac050 RCX: 00007fd957e7de69
RDX: 0000000000000010 RSI: 0000000020000440 RDI: 0000000000000005
RBP: 00007fd957eca47a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007fd957fac050 R15: 00007fff5b06d468
 </TASK>