------------[ cut here ]------------ proc_dir_entry 'can-bcm/58015' already registered WARNING: CPU: 1 PID: 14508 at fs/proc/generic.c:377 proc_register+0x2e8/0x464 fs/proc/generic.c:378 Modules linked in: CPU: 1 PID: 14508 Comm: syz-executor.4 Not tainted 5.15.147-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023 pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : proc_register+0x2e8/0x464 fs/proc/generic.c:378 lr : proc_register+0x2e0/0x464 fs/proc/generic.c:376 sp : ffff800023157a20 x29: ffff800023157a40 x28: dfff800000000000 x27: 0000000000000000 x26: 0000000000000005 x25: ffff0000cf2846f8 x24: ffff00010fb6e9a4 x23: ffff00010fb6e998 x22: 1fffe00021f6dd2a x21: ffff00010fb6e954 x20: ffff0000cf284724 x19: ffff00010fb6e8c0 x18: 0000000000000002 x17: 0000000000000002 x16: ffff80001198299c x15: 00000000ffffffff x14: ffff00011728d1c0 x13: 0000000000000001 x12: 0000000000040000 x11: 000000000000383a x10: ffff8000221c9000 x9 : 272bd25ba7f6ac00 x8 : 272bd25ba7f6ac00 x7 : 0000000000000001 x6 : 0000000000000001 x5 : ffff800023157198 x4 : ffff8000149ff8e0 x3 : ffff80000854e290 x2 : 0000000000000001 x1 : 0000000000000001 x0 : ffff800014c0faa0 Call trace: proc_register+0x2e8/0x464 fs/proc/generic.c:378 proc_create_net_single+0x140/0x198 fs/proc/proc_net.c:209 bcm_connect+0x21c/0x448 net/can/bcm.c:1626 __sys_connect_file net/socket.c:1918 [inline] __sys_connect+0x268/0x290 net/socket.c:1935 __do_sys_connect net/socket.c:1945 [inline] __se_sys_connect net/socket.c:1942 [inline] __arm64_sys_connect+0x7c/0x94 net/socket.c:1942 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181 el0_svc+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:608 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 irq event stamp: 90 hardirqs last enabled at (89): [] __up_console_sem+0xb4/0x100 kernel/printk/printk.c:257 hardirqs last disabled at (90): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:396 softirqs last enabled at (68): [] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:31 softirqs last disabled at (66): [] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:18 ---[ end trace 4a358306d528ef82 ]---