------------[ cut here ]------------
proc_dir_entry 'can-bcm/9965' already registered
WARNING: CPU: 0 PID: 6480 at fs/proc/generic.c:375 proc_register+0x455/0x5f0 fs/proc/generic.c:375
Modules linked in:
CPU: 0 PID: 6480 Comm: syz-executor.2 Not tainted 6.9.0-rc2-syzkaller-00207-ge8b0ccb2a787 #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
RIP: 0010:proc_register+0x455/0x5f0 fs/proc/generic.c:375
Code: 48 89 f9 48 c1 e9 03 80 3c 01 00 0f 85 a2 01 00 00 48 8b 44 24 10 48 c7 c7 a0 5a 40 8b 48 8b b0 d8 00 00 00 e8 cc b7 2e ff 90 <0f> 0b 90 90 48 c7 c7 80 b2 de 8d e8 0b bb c1 08 48 8b 4c 24 28 48
RSP: 0018:ffffc9000347fc58 EFLAGS: 00010282
RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffc9000b5f3000
RDX: 0000000000040000 RSI: ffffffff814fe176 RDI: 0000000000000001
RBP: ffff88802b2eeab8 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000002 R12: ffff88804386fcc0
R13: dffffc0000000000 R14: ffff888044407d80 R15: ffffed100870dfb4
FS:  00007f61f5bde6c0(0000) GS:ffff88806b000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b31621000 CR3: 00000000242ba000 CR4: 0000000000350ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 proc_create_net_single+0x105/0x170 fs/proc/proc_net.c:219
 bcm_connect+0x1ed/0x4d0 net/can/bcm.c:1673
 __sys_connect_file+0x15f/0x1a0 net/socket.c:2048
 __sys_connect+0x149/0x170 net/socket.c:2065
 __do_sys_connect net/socket.c:2075 [inline]
 __se_sys_connect net/socket.c:2072 [inline]
 __x64_sys_connect+0x72/0xb0 net/socket.c:2072
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xd2/0x260 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x72/0x7a
RIP: 0033:0x7f61f607de69
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:00007f61f5bde0c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002a
RAX: ffffffffffffffda RBX: 00007f61f61ac050 RCX: 00007f61f607de69
RDX: 0000000000000010 RSI: 00000000200003c0 RDI: 0000000000000005
RBP: 00007f61f60ca47a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007f61f61ac050 R15: 00007fffb44fb868
 </TASK>