BUG: unable to handle page fault for address: ffffed101ab342ff
#PF: supervisor read access in kernel mode
#PF: error_code(0x0000) - not-present page
PGD 21fff7067 P4D 21fff7067 PUD 21fff6067 PMD 0 
Oops: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 18795 Comm: syz-executor.4 Tainted: G        W         5.4.19-syzkaller-00460-gecf5064346c1 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:is_multicast_ether_addr_64bits include/linux/etherdevice.h:136 [inline]
RIP: 0010:netif_receive_generic_xdp net/core/dev.c:4294 [inline]
RIP: 0010:do_xdp_generic+0x603/0x1500 net/core/dev.c:4392
Code: 00 00 00 00 fc ff df 42 80 3c 30 00 74 05 e8 f4 e4 95 fe 4c 89 a4 24 d8 00 00 00 4c 89 ac 24 18 01 00 00 4c 89 f8 48 c1 e8 03 <42> 80 3c 30 00 74 08 4c 89 ff e8 2e e4 95 fe 49 8b 37 83 e6 01 31
RSP: 0018:ffff8881d67bf680 EFLAGS: 00010a07
RAX: 1ffff1101ab342ff RBX: ffff8881d67bf788 RCX: 1ffff1103acf7ef1
RDX: ffff8881d64c22f4 RSI: 00000000000000d1 RDI: ffff8881d67bf798
RBP: ffff8881d67bf830 R08: ffffffff82db065b R09: ffffed103ab3235d
R10: ffffed103ab3235d R11: 0000000000000000 R12: ffff8880d599197a
R13: ffff8881d5991800 R14: dffffc0000000000 R15: ffff8880d59a17ff
FS:  00007fd976369700(0000) GS:ffff8881dba00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffed101ab342ff CR3: 00000001ad4b4005 CR4: 00000000001606f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
Call Trace:
 tun_get_user+0x2498/0x3d10 drivers/net/tun.c:1935
 tun_chr_write_iter+0x134/0x1c0 drivers/net/tun.c:2026
 do_iter_readv_writev+0x5fa/0x890 include/linux/fs.h:1909
 do_iter_write+0x180/0x590 fs/read_write.c:973
 vfs_writev fs/read_write.c:1018 [inline]
 do_writev+0x2cd/0x560 fs/read_write.c:1061
 __do_sys_writev fs/read_write.c:1134 [inline]
 __se_sys_writev fs/read_write.c:1131 [inline]
 __x64_sys_writev+0x7d/0x90 fs/read_write.c:1131
 do_syscall_64+0xc0/0x100 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x45b271
Code: 75 14 b8 14 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 e4 b7 fb ff c3 48 83 ec 08 e8 fa 2c 00 00 48 89 04 24 b8 14 00 00 00 0f 05 <48> 8b 3c 24 48 89 c2 e8 43 2d 00 00 48 89 d0 48 83 c4 08 48 3d 01
RSP: 002b:00007fd976368ba0 EFLAGS: 00000293 ORIG_RAX: 0000000000000014
RAX: ffffffffffffffda RBX: 000000000000007a RCX: 000000000045b271
RDX: 0000000000000001 RSI: 00007fd976368c00 RDI: 00000000000000f0
RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000
R10: 00007fd9763699d0 R11: 0000000000000293 R12: 00000000ffffffff
R13: 0000000000000b7b R14: 00000000004cc5c8 R15: 000000000075bf2c
Modules linked in:
CR2: ffffed101ab342ff
---[ end trace 1cc1addf76cc53c5 ]---
RIP: 0010:is_multicast_ether_addr_64bits include/linux/etherdevice.h:136 [inline]
RIP: 0010:netif_receive_generic_xdp net/core/dev.c:4294 [inline]
RIP: 0010:do_xdp_generic+0x603/0x1500 net/core/dev.c:4392
Code: 00 00 00 00 fc ff df 42 80 3c 30 00 74 05 e8 f4 e4 95 fe 4c 89 a4 24 d8 00 00 00 4c 89 ac 24 18 01 00 00 4c 89 f8 48 c1 e8 03 <42> 80 3c 30 00 74 08 4c 89 ff e8 2e e4 95 fe 49 8b 37 83 e6 01 31
RSP: 0018:ffff8881d67bf680 EFLAGS: 00010a07
RAX: 1ffff1101ab342ff RBX: ffff8881d67bf788 RCX: 1ffff1103acf7ef1
RDX: ffff8881d64c22f4 RSI: 00000000000000d1 RDI: ffff8881d67bf798
RBP: ffff8881d67bf830 R08: ffffffff82db065b R09: ffffed103ab3235d
R10: ffffed103ab3235d R11: 0000000000000000 R12: ffff8880d599197a
R13: ffff8881d5991800 R14: dffffc0000000000 R15: ffff8880d59a17ff
FS:  00007fd976369700(0000) GS:ffff8881dba00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffed101ab342ff CR3: 00000001ad4b4005 CR4: 00000000001606f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600