general protection fault, probably for non-canonical address 0xe000080fe8bd0a99: 0000 [#1] PREEMPT SMP KASAN
KASAN: probably user-memory-access in range [0x0000607f45e854c8-0x0000607f45e854cf]
CPU: 0 PID: 11052 Comm: syz-executor.4 Not tainted 5.11.0-rc3-next-20210115-syzkaller #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:219 [inline]
RIP: 0010:j1939_priv_get_by_ndev_locked+0xff/0x220 net/can/j1939/main.c:231
Code: a0 05 00 00 48 85 db 0f 84 a8 00 00 00 e8 c9 76 8f f9 48 8d bb 28 60 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 01 01 00 00 4c 8b a3 28 60 00 00 4d 85 e4 74 75
RSP: 0018:ffffc90002827c68 EFLAGS: 00010206
RAX: dffffc0000000000 RBX: 0000607f45e7f4a0 RCX: ffffc900115a1000
RDX: 00000c0fe8bd0a99 RSI: ffffffff87e39247 RDI: 0000607f45e854c8
RBP: 0000000000000010 R08: 0000000000000000 R09: 0000000000000118
R10: ffffffff87e391ff R11: 0000000000000118 R12: 0000000000000118
R13: ffffffff8cc97880 R14: 0000000000000000 R15: ffffffff8cc609c0
FS:  00007f75f67e7700(0000) GS:ffff8880b9e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2bd24000 CR3: 0000000021071000 CR4: 00000000001506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 j1939_priv_get_by_ndev net/can/j1939/main.c:243 [inline]
 j1939_netdev_notify+0x41/0x1a0 net/can/j1939/main.c:353
 notifier_call_chain+0xb5/0x200 kernel/notifier.c:83
 call_netdevice_notifiers_info+0xb5/0x130 net/core/dev.c:2040
 call_netdevice_notifiers_extack net/core/dev.c:2052 [inline]
 call_netdevice_notifiers+0x79/0xa0 net/core/dev.c:2066
 __tun_chr_ioctl.isra.0+0x3702/0x4360 drivers/net/tun.c:3087
 vfs_ioctl fs/ioctl.c:48 [inline]
 __do_sys_ioctl fs/ioctl.c:753 [inline]
 __se_sys_ioctl fs/ioctl.c:739 [inline]
 __x64_sys_ioctl+0x193/0x200 fs/ioctl.c:739
 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x45e219
Code: 0d b4 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 db b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f75f67e6c68 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 000000000045e219
RDX: 0000000000000118 RSI: 00000000400454cd RDI: 0000000000000003
RBP: 000000000119bfc0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000119bf8c
R13: 00007ffc977630af R14: 00007f75f67e79c0 R15: 000000000119bf8c
Modules linked in:
---[ end trace 8c3022fe4a2a32f7 ]---
RIP: 0010:j1939_ndev_to_priv net/can/j1939/main.c:219 [inline]
RIP: 0010:j1939_priv_get_by_ndev_locked+0xff/0x220 net/can/j1939/main.c:231
Code: a0 05 00 00 48 85 db 0f 84 a8 00 00 00 e8 c9 76 8f f9 48 8d bb 28 60 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 01 01 00 00 4c 8b a3 28 60 00 00 4d 85 e4 74 75
RSP: 0018:ffffc90002827c68 EFLAGS: 00010206
RAX: dffffc0000000000 RBX: 0000607f45e7f4a0 RCX: ffffc900115a1000
RDX: 00000c0fe8bd0a99 RSI: ffffffff87e39247 RDI: 0000607f45e854c8
RBP: 0000000000000010 R08: 0000000000000000 R09: 0000000000000118
R10: ffffffff87e391ff R11: 0000000000000118 R12: 0000000000000118
R13: ffffffff8cc97880 R14: 0000000000000000 R15: ffffffff8cc609c0
FS:  00007f75f67e7700(0000) GS:ffff8880b9e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2bd24000 CR3: 0000000021071000 CR4: 00000000001506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400