netlink: 4 bytes leftover after parsing attributes in process `syz-executor.0'.
------------[ cut here ]------------
proc_dir_entry 'can-bcm/119302' already registered
WARNING: CPU: 0 PID: 2633 at fs/proc/generic.c:375 proc_register+0x130/0x1c0 fs/proc/generic.c:375
Modules linked in:
CPU: 0 PID: 2633 Comm: syz-executor.0 Not tainted 6.9.0-rc3-syzkaller-00189-g00dcf5d862e8 #0
Hardware name: linux,dummy-virt (DT)
pstate: 61400009 (nZCv daif +PAN -UAO -TCO +DIT -SSBS BTYPE=--)
pc : proc_register+0x130/0x1c0 fs/proc/generic.c:375
lr : proc_register+0x130/0x1c0 fs/proc/generic.c:375
sp : ffff8000882f3c40
x29: ffff8000882f3c40 x28: faf000000b80da00 x27: ffff80008269db20
x26: faf0000011d82080 x25: ffff80008285f728 x24: faf0000011d82000
x23: 0000000000000006 x22: f9f0000006533fac x21: 0000000000000006
x20: f9f0000006533f00 x19: f4f0000006533c88 x18: ffffffffffffffff
x17: 0000000000000000 x16: 0000000000000000 x15: ffff8000882f3670
x14: 0000000000000000 x13: ffff8000825ab880 x12: 0000000000005f04
x11: 0000000000001fac x10: ffff80008265b880 x9 : ffff8000825ab880
x8 : 00000000ffffdfff x7 : ffff80008265b880 x6 : c0000000ffffe000
x5 : fff000007f8ccd08 x4 : 0000000000000000 x3 : fff07ffffd37a000
x2 : 0000000000000000 x1 : 0000000000000000 x0 : faf000000b80da00
Call trace:
 proc_register+0x130/0x1c0 fs/proc/generic.c:375
 proc_create_net_single+0x50/0x68 fs/proc/proc_net.c:219
 bcm_connect+0x8c/0x1c0 net/can/bcm.c:1673
 __sys_connect_file+0x80/0xb4 net/socket.c:2048
 __sys_connect+0xb0/0xd0 net/socket.c:2065
 __do_sys_connect net/socket.c:2075 [inline]
 __se_sys_connect net/socket.c:2072 [inline]
 __arm64_sys_connect+0x20/0x30 net/socket.c:2072
 __invoke_syscall arch/arm64/kernel/syscall.c:34 [inline]
 invoke_syscall+0x48/0x118 arch/arm64/kernel/syscall.c:48
 el0_svc_common.constprop.0+0x40/0xe0 arch/arm64/kernel/syscall.c:133
 do_el0_svc+0x1c/0x28 arch/arm64/kernel/syscall.c:152
 el0_svc+0x34/0xf8 arch/arm64/kernel/entry-common.c:712
 el0t_64_sync_handler+0x100/0x12c arch/arm64/kernel/entry-common.c:730
 el0t_64_sync+0x19c/0x1a0 arch/arm64/kernel/entry.S:598
---[ end trace 0000000000000000 ]---