BUG: unable to handle page fault for address: 0000000000006028
#PF: supervisor read access in kernel mode
#PF: error_code(0x0000) - not-present page
PGD 1235f6067 P4D 1235f6067 PUD 1240d4067 PMD 0 
Oops: 0000 [#1] PREEMPT SMP
CPU: 0 PID: 8642 Comm: syz-executor.4 Not tainted 5.4.0-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 net/can/j1939/main.c:222 [inline]
RIP: 0010:j1939_priv_get_by_ndev+0x76/0xc0 net/can/j1939/main.c:234
Code: 81 fd 18 01 75 42 e8 49 d0 1b fd 48 8d bb f0 04 00 00 e8 ad dd 28 fd 48 8b 9b f0 04 00 00 48 8d bb 28 60 00 00 e8 9a dd 28 fd <4c> 8b a3 28 60 00 00 4d 85 e4 74 12 e8 19 d0 1b fd 49 8d bc 24 20
RSP: 0018:ffffc90000f9ba80 EFLAGS: 00010206
RAX: 0000000000000d36 RBX: 0000000000000000 RCX: ffffffff86040c68
RDX: 0000000000000000 RSI: ffffffff84285c67 RDI: 0000000000006028
RBP: ffffc90000f9ba98 R08: 0000000000000000 R09: 0000000000006028
R10: ffffc90000f9bad0 R11: 000000000000602f R12: 0000000000000000
R13: 0000000000000118 R14: ffffffff85c18c20 R15: 0000000000000000
FS:  00007f05e1cee700(0000) GS:ffff88812be00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000006028 CR3: 0000000120e48000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 j1939_netdev_notify+0x31/0xc0 net/can/j1939/main.c:344
 notifier_call_chain+0xd7/0x160 kernel/notifier.c:95
 __raw_notifier_call_chain kernel/notifier.c:396 [inline]
 raw_notifier_call_chain+0x37/0x50 kernel/notifier.c:403
 call_netdevice_notifiers_info+0x48/0xc0 net/core/dev.c:1668
 call_netdevice_notifiers_extack net/core/dev.c:1680 [inline]
 __dev_open+0xbc/0x2a0 net/core/dev.c:1313
 __dev_change_flags+0x37f/0x4c0 net/core/dev.c:7882
 dev_change_flags+0x6c/0xe0 net/core/dev.c:7953
 dev_ifsioc+0x201/0x6a0 net/core/dev_ioctl.c:237
 dev_ioctl+0x149/0x660 net/core/dev_ioctl.c:489
 sock_do_ioctl+0xdb/0x230 net/socket.c:1061
 sock_ioctl+0x3a3/0x5e0 net/socket.c:1189
 vfs_ioctl fs/ioctl.c:46 [inline]
 file_ioctl fs/ioctl.c:509 [inline]
 do_vfs_ioctl+0x991/0xc60 fs/ioctl.c:696
 ksys_ioctl+0xbd/0xe0 fs/ioctl.c:713
 __do_sys_ioctl fs/ioctl.c:720 [inline]
 __se_sys_ioctl fs/ioctl.c:718 [inline]
 __x64_sys_ioctl+0x4c/0x60 fs/ioctl.c:718
 do_syscall_64+0xcc/0x370 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x45a639
Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f05e1cedc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 000000000045a639
RDX: 00000000200018c0 RSI: 0000000000008914 RDI: 0000000000000004
RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f05e1cee6d4
R13: 00000000004ced48 R14: 00000000004d87f0 R15: 00000000ffffffff
Modules linked in:
CR2: 0000000000006028
---[ end trace 18567574ad6d5656 ]---
RIP: 0010:j1939_ndev_to_priv net/can/j1939/main.c:210 [inline]
RIP: 0010:j1939_priv_get_by_ndev_locked net/can/j1939/main.c:222 [inline]
RIP: 0010:j1939_priv_get_by_ndev+0x76/0xc0 net/can/j1939/main.c:234
Code: 81 fd 18 01 75 42 e8 49 d0 1b fd 48 8d bb f0 04 00 00 e8 ad dd 28 fd 48 8b 9b f0 04 00 00 48 8d bb 28 60 00 00 e8 9a dd 28 fd <4c> 8b a3 28 60 00 00 4d 85 e4 74 12 e8 19 d0 1b fd 49 8d bc 24 20
RSP: 0018:ffffc90000f9ba80 EFLAGS: 00010206
RAX: 0000000000000d36 RBX: 0000000000000000 RCX: ffffffff86040c68
RDX: 0000000000000000 RSI: ffffffff84285c67 RDI: 0000000000006028
RBP: ffffc90000f9ba98 R08: 0000000000000000 R09: 0000000000006028
R10: ffffc90000f9bad0 R11: 000000000000602f R12: 0000000000000000
R13: 0000000000000118 R14: ffffffff85c18c20 R15: 0000000000000000
FS:  00007f05e1cee700(0000) GS:ffff88812be00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000006028 CR3: 0000000120e48000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400