netlink: 4 bytes leftover after parsing attributes in process `syz-executor.0'.
------------[ cut here ]------------
proc_dir_entry 'can-bcm/32455' already registered
WARNING: CPU: 1 PID: 11690 at fs/proc/generic.c:375 proc_register+0x1d8/0x4a8 fs/proc/generic.c:375
Modules linked in:
CPU: 1 PID: 11690 Comm: syz-executor.0 Not tainted 6.9.0-rc3-syzkaller-00355-g7efd0a74039f #0
Hardware name: linux,dummy-virt (DT)
pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : proc_register+0x1d8/0x4a8 fs/proc/generic.c:375
lr : proc_register+0x1d8/0x4a8 fs/proc/generic.c:375
sp : ffff80008e907ab0
x29: ffff80008e907ab0 x28: ffff000011343498 x27: dfff800000000000
x26: ffff000011343340 x25: ffff000011343454 x24: 0000000000000005
x23: ffff800086b25f40 x22: ffff0000113434a4 x21: ffff0000148c6dc0
x20: 0000000000000005 x19: ffff0000113433c0 x18: ffff000013a80a70
x17: 0000000000000000 x16: 0000000000000006 x15: 1fffe0000275014d
x14: 1fffe0000275015c x13: 1fffe0000275014a x12: ffff60000d4d55c3
x11: 1fffe0000d4d55c2 x10: ffff60000d4d55c2 x9 : dfff800000000000
x8 : ffff00006a6aae13 x7 : 0000000000000001 x6 : ffff60000d4d55c2
x5 : ffff00006a6aae10 x4 : 1fffe00002750001 x3 : dfff800000000000
x2 : 0000000000000000 x1 : 0000000000000000 x0 : ffff000013a80000
Call trace:
 proc_register+0x1d8/0x4a8 fs/proc/generic.c:375
 proc_create_net_single+0xf4/0x168 fs/proc/proc_net.c:219
 bcm_connect+0x174/0x3e4 net/can/bcm.c:1673
 __sys_connect_file+0x130/0x178 net/socket.c:2048
 __sys_connect+0x110/0x138 net/socket.c:2065
 __do_sys_connect net/socket.c:2075 [inline]
 __se_sys_connect net/socket.c:2072 [inline]
 __arm64_sys_connect+0x6c/0xa0 net/socket.c:2072
 __invoke_syscall arch/arm64/kernel/syscall.c:34 [inline]
 invoke_syscall+0x6c/0x25c arch/arm64/kernel/syscall.c:48
 el0_svc_common.constprop.0+0xac/0x230 arch/arm64/kernel/syscall.c:133
 do_el0_svc_compat+0x40/0x64 arch/arm64/kernel/syscall.c:158
 el0_svc_compat+0x4c/0x17c arch/arm64/kernel/entry-common.c:852
 el0t_32_sync_handler+0x98/0x13c arch/arm64/kernel/entry-common.c:862
 el0t_32_sync+0x194/0x198 arch/arm64/kernel/entry.S:603
irq event stamp: 2980
hardirqs last  enabled at (2979): [<ffff800080304ac4>] __up_console_sem kernel/printk/printk.c:341 [inline]
hardirqs last  enabled at (2979): [<ffff800080304ac4>] __console_unlock kernel/printk/printk.c:2731 [inline]
hardirqs last  enabled at (2979): [<ffff800080304ac4>] console_unlock+0x1c0/0x1d8 kernel/printk/printk.c:3050
hardirqs last disabled at (2980): [<ffff800084e62a00>] el1_dbg+0x24/0x9c arch/arm64/kernel/entry-common.c:470
softirqs last  enabled at (2954): [<ffff800083edfa84>] __sock_i_ino net/core/sock.c:2619 [inline]
softirqs last  enabled at (2954): [<ffff800083edfa84>] sock_i_ino+0x74/0xb4 net/core/sock.c:2630
softirqs last disabled at (2952): [<ffff800083edfa10>] sock_i_ino+0x0/0xb4 net/core/sock.c:383
---[ end trace 0000000000000000 ]---