netlink: 4 bytes leftover after parsing attributes in process `syz-executor.0'.
------------[ cut here ]------------
proc_dir_entry 'can-bcm/42958' already registered
WARNING: CPU: 1 PID: 13592 at fs/proc/generic.c:376 proc_register+0x34d/0x4f0 fs/proc/generic.c:375
Modules linked in:
CPU: 1 PID: 13592 Comm: syz-executor.0 Not tainted 6.9.0-syzkaller-08544-g4b377b4868ef #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024
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 87 99 c6 ff 48 8b 55 00 48 c7 c7 00 c1 da 8b 48 89 de e8 24 7c 23 ff 90 <0f> 0b 90 90 48 c7 c7 00 5f 4a 8e e8 33 0d 5e 09 48 8b 44 24 30 42
RSP: 0018:ffffc9000d2efc28 EFLAGS: 00010246
RAX: da5c16358fb04f00 RBX: ffff888022abad64 RCX: 0000000000040000
RDX: ffffc90014f64000 RSI: 0000000000005ba7 RDI: 0000000000005ba8
RBP: ffff88805e511858 R08: ffffffff81585642 R09: fffffbfff1c3995c
R10: dffffc0000000000 R11: fffffbfff1c3995c R12: ffff88805e511814
R13: 0000000000000005 R14: dffffc0000000000 R15: ffff88805e511780
FS:  00007f28057ff6c0(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fa497592f00 CR3: 00000000228ac000 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:220
 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: 0033:0x7f2805c7cee9
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:00007f28057ff0c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002a
RAX: ffffffffffffffda RBX: 00007f2805dabf80 RCX: 00007f2805c7cee9
RDX: 0000000000000010 RSI: 0000000020000040 RDI: 0000000000000007
RBP: 00007f2805cc949e R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f2805dabf80 R15: 00007ffd20546d58
 </TASK>