kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory access
general protection fault: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 7644 Comm: syz-executor.3 Not tainted 5.3.0-rc7+ #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:j1939_ndev_to_priv net/can/j1939/main.c:210 [inline]
RIP: 0010:j1939_priv_get_by_ndev_locked+0xc9/0x150 net/can/j1939/main.c:222
Code: 03 80 3c 02 00 0f 85 86 00 00 00 48 8b 9b 88 05 00 00 48 b8 00 00 00 00 00 fc ff df 48 8d bb 28 60 00 00 48 89 fa 48 c1 ea 03 <80> 3c 02 00 75 6b 4c 8b a3 28 60 00 00 4d 85 e4 74 0d 49 8d bc 24
RSP: 0018:ffff88808361f998 EFLAGS: 00010206
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffff8880a1502c90
RDX: 0000000000000c05 RSI: ffffffff88e08eb8 RDI: 0000000000006028
RBP: ffff88808361f9a8 R08: 0000000000000004 R09: ffffed10106c3f24
R10: ffffed10106c3f24 R11: 0000000000000003 R12: 0000000000000000
R13: 0000000000000006 R14: ffffffff88e08e60 R15: ffffffff88e19f80
FS:  0000555555a64940(0000) GS:ffff8880aeb00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000000117f000 CR3: 0000000097779000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 j1939_priv_get_by_ndev net/can/j1939/main.c:234 [inline]
 j1939_netdev_notify+0x42/0xf0 net/can/j1939/main.c:344
 notifier_call_chain+0x8a/0x160 kernel/notifier.c:95
 __raw_notifier_call_chain kernel/notifier.c:396 [inline]
 raw_notifier_call_chain+0x11/0x20 kernel/notifier.c:403
 call_netdevice_notifiers_info+0x28/0x60 net/core/dev.c:1749
 call_netdevice_notifiers_extack net/core/dev.c:1761 [inline]
 call_netdevice_notifiers net/core/dev.c:1775 [inline]
 rollback_registered_many+0x59c/0xb90 net/core/dev.c:8239
 rollback_registered+0xdc/0x190 net/core/dev.c:8281
 unregister_netdevice_queue+0x186/0x240 net/core/dev.c:9328
 unregister_netdevice include/linux/netdevice.h:2633 [inline]
 unregister_netdev+0x17/0x20 net/core/dev.c:9369
 slip_close+0x13b/0x190 drivers/net/slip/slip.c:895
 tty_ldisc_close.isra.4+0xe8/0x150 drivers/tty/tty_ldisc.c:494
 tty_ldisc_kill+0x7f/0x120 drivers/tty/tty_ldisc.c:642
 tty_ldisc_release+0xdb/0x1c0 drivers/tty/tty_ldisc.c:814
 tty_release_struct+0x12/0x50 drivers/tty/tty_io.c:1612
 tty_release+0x97e/0xc60 drivers/tty/tty_io.c:1785
 __fput+0x25a/0x770 fs/file_table.c:280
 ____fput+0x9/0x10 fs/file_table.c:313
 task_work_run+0x108/0x180 kernel/task_work.c:113
 tracehook_notify_resume include/linux/tracehook.h:188 [inline]
 exit_to_usermode_loop+0x24e/0x2e0 arch/x86/entry/common.c:163
 prepare_exit_to_usermode arch/x86/entry/common.c:194 [inline]
 syscall_return_slowpath arch/x86/entry/common.c:274 [inline]
 do_syscall_64+0x462/0x540 arch/x86/entry/common.c:299
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x413db1
Code: 75 14 b8 03 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 04 1b 00 00 c3 48 83 ec 08 e8 0a fc ff ff 48 89 04 24 b8 03 00 00 00 0f 05 <48> 8b 3c 24 48 89 c2 e8 53 fc ff ff 48 89 d0 48 83 c4 08 48 3d 01
RSP: 002b:00007ffc96007c10 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
RAX: 0000000000000000 RBX: 0000000000000004 RCX: 0000000000413db1
RDX: 0000001b2d320000 RSI: 0000000000000000 RDI: 0000000000000003
RBP: 0000000000000001 R08: ffffffffffffffff R09: ffffffffffffffff
R10: 00007ffc96007cf0 R11: 0000000000000293 R12: 000000000075bfc8
R13: 000000000000e958 R14: 00000000007601c8 R15: 000000000075bfd4
Modules linked in:
---[ end trace 9b52de9758c477a8 ]---
RIP: 0010:j1939_ndev_to_priv net/can/j1939/main.c:210 [inline]
RIP: 0010:j1939_priv_get_by_ndev_locked+0xc9/0x150 net/can/j1939/main.c:222
Code: 03 80 3c 02 00 0f 85 86 00 00 00 48 8b 9b 88 05 00 00 48 b8 00 00 00 00 00 fc ff df 48 8d bb 28 60 00 00 48 89 fa 48 c1 ea 03 <80> 3c 02 00 75 6b 4c 8b a3 28 60 00 00 4d 85 e4 74 0d 49 8d bc 24
RSP: 0018:ffff88808361f998 EFLAGS: 00010206
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffff8880a1502c90
RDX: 0000000000000c05 RSI: ffffffff88e08eb8 RDI: 0000000000006028
RBP: ffff88808361f9a8 R08: 0000000000000004 R09: ffffed10106c3f24
R10: ffffed10106c3f24 R11: 0000000000000003 R12: 0000000000000000
R13: 0000000000000006 R14: ffffffff88e08e60 R15: ffffffff88e19f80
FS:  0000555555a64940(0000) GS:ffff8880aeb00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000000117f000 CR3: 0000000097779000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400