------------[ cut here ]------------ proc_dir_entry 'can-bcm/178663' already registered WARNING: CPU: 0 PID: 8789 at fs/proc/generic.c:377 proc_register+0x347/0x4e0 fs/proc/generic.c:376 Modules linked in: CPU: 0 PID: 8789 Comm: syz-executor.0 Not tainted 6.1.72-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023 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 ac e5 cb ff 48 8b 55 00 48 c7 c7 c0 af fb 8a 48 89 de e8 69 97 3c ff <0f> 0b 48 c7 c7 40 83 27 8d e8 3b ec 7e 08 48 8b 44 24 30 42 0f b6 RSP: 0018:ffffc9000f9afc48 EFLAGS: 00010246 RAX: f9649546e257ec00 RBX: ffff888097148364 RCX: 0000000000040000 RDX: ffffc90021229000 RSI: 0000000000006010 RDI: 0000000000006011 RBP: ffff88801f59d5d8 R08: ffffffff8152774e R09: fffff52001f35f29 R10: 0000000000000000 R11: dffffc0000000001 R12: ffff88801f59d594 R13: 0000000000000006 R14: dffffc0000000000 R15: ffff88801f59d500 FS: 00007ffa7183d6c0(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f86d4300f63 CR3: 0000000086b79000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: 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+0x3d/0xb0 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7ffa70a7cda9 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:00007ffa7183d0c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002a RAX: ffffffffffffffda RBX: 00007ffa70bac050 RCX: 00007ffa70a7cda9 RDX: 0000000000000010 RSI: 00000000200001c0 RDI: 0000000000000006 RBP: 00007ffa70ac947a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000006e R14: 00007ffa70bac050 R15: 00007ffe169f40f8