------------[ cut here ]------------ proc_dir_entry 'can-bcm/3977' already registered WARNING: CPU: 0 PID: 5077 at fs/proc/generic.c:376 proc_register+0x34d/0x4f0 fs/proc/generic.c:375 Modules linked in: CPU: 0 PID: 5077 Comm: syz-executor379 Not tainted 6.9.0-rc6-syzkaller-00234-g7367539ad4b0 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 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 a7 bd c6 ff 48 8b 55 00 48 c7 c7 80 95 da 8b 48 89 de e8 74 de 27 ff 90 <0f> 0b 90 90 48 c7 c7 a0 39 4a 8e e8 c3 d4 51 09 48 8b 44 24 30 42 RSP: 0018:ffffc9000257fc28 EFLAGS: 00010246 RAX: ac31adc3da18fc00 RBX: ffff888074c635e4 RCX: ffff88802ca00000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffff88823bdb20d8 R08: ffffffff81588e32 R09: 1ffff1101728519a R10: dffffc0000000000 R11: ffffed101728519b R12: ffff88823bdb2094 R13: 0000000000000004 R14: dffffc0000000000 R15: ffff88823bdb2000 FS: 000055556bfc7380(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020000000 CR3: 000000002369e000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: proc_create_net_single+0x154/0x1b0 fs/proc/proc_net.c:219 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: 0033:0x7fa33353a559 Code: 48 83 c4 28 c3 e8 d7 19 00 00 0f 1f 80 00 00 00 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 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffc390bb518 EFLAGS: 00000246 ORIG_RAX: 000000000000002a RAX: ffffffffffffffda RBX: 00007fa333587390 RCX: 00007fa33353a559 RDX: 0000000000000010 RSI: 00000000200002c0 RDI: 0000000000000004 RBP: 0000000000000003 R08: 0000000000000000 R09: 0000555500000000 R10: 0000555500000000 R11: 0000000000000246 R12: 00007ffc390bb560 R13: 00007ffc390bb530 R14: 0000000000000001 R15: 00007ffc390bb560