------------[ cut here ]------------
proc_dir_entry 'can-bcm/3835' already registered
WARNING: CPU: 0 PID: 5107 at fs/proc/generic.c:376 proc_register+0x34d/0x4f0 fs/proc/generic.c:375
Modules linked in:
CPU: 0 UID: 0 PID: 5107 Comm: syz.0.0 Not tainted 6.11.0-rc6-syzkaller-00019-g67784a74e258 #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
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 e7 90 c5 ff 48 8b 55 00 48 c7 c7 40 35 1b 8c 48 89 de e8 14 6a 20 ff 90 <0f> 0b 90 90 48 c7 c7 e0 f7 aa 8e e8 b3 7e 8e 09 48 8b 44 24 30 42
RSP: 0018:ffffc900031dfc28 EFLAGS: 00010246
RAX: fcd607341cf30a00 RBX: ffff88804c2db4a4 RCX: 0000000000040000
RDX: ffffc9000b932000 RSI: 0000000000001c97 RDI: 0000000000001c98
RBP: ffff88800e4b7358 R08: ffffffff8155b372 R09: fffffbfff1cfa0e0
R10: dffffc0000000000 R11: fffffbfff1cfa0e0 R12: ffff88800e4b7314
R13: 0000000000000004 R14: dffffc0000000000 R15: ffff88800e4b7280
FS:  00007f49257116c0(0000) GS:ffff88801fe00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f4925710f98 CR3: 000000003ccca000 CR4: 0000000000350ef0
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:220
 bcm_connect+0x2a7/0x4a0 net/can/bcm.c:1673
 __sys_connect_file net/socket.c:2061 [inline]
 __sys_connect+0x2df/0x310 net/socket.c:2078
 __do_sys_connect net/socket.c:2088 [inline]
 __se_sys_connect net/socket.c:2085 [inline]
 __x64_sys_connect+0x7a/0x90 net/socket.c:2085
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f4924979eb9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f4925711038 EFLAGS: 00000246 ORIG_RAX: 000000000000002a
RAX: ffffffffffffffda RBX: 00007f4924b16058 RCX: 00007f4924979eb9
RDX: 0000000000000010 RSI: 0000000020000640 RDI: 0000000000000000
RBP: 00007f49249e793e R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f4924b16058 R15: 00007ffd762ef968
 </TASK>