BUG: unable to handle page fault for address: ffff887f9fa13fff
#PF: supervisor read access in kernel mode
#PF: error_code(0x0000) - not-present page
PGD 0 P4D 0 
Oops: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 9767 Comm: syz-executor819 Not tainted 5.5.0-syzkaller #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:135 [inline]
RIP: 0010:netif_receive_generic_xdp net/core/dev.c:4565 [inline]
RIP: 0010:do_xdp_generic.part.0+0x479/0x17a0 net/core/dev.c:4663
Code: 03 48 89 85 f0 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 a5 78 ff ff ff 80 3c 02 00 48 89 8d c8 fe ff ff 0f 85 ac 10 00 00 <49> 8b 04 24 49 8d 7c 24 0c 48 ba 00 00 00 00 00 fc ff df 48 89 85
RSP: 0018:ffffc90000f77770 EFLAGS: 00010246
RAX: dffffc0000000000 RBX: ffff88809fa04000 RCX: ffffffff0000feff
RDX: 1ffff10ff3f427ff RSI: ffff8880950496b0 RDI: 0000000000000005
RBP: ffffc90000f778b0 R08: ffff88809fc4e140 R09: ffffed1013f4085d
R10: ffffed1013f4085c R11: ffff88809fa042e3 R12: ffff887f9fa13fff
R13: 0000000000000100 R14: ffff88809fa13fff R15: ffff888095049640
FS:  00000000014a6880(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffff887f9fa13fff CR3: 00000000a928d000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 do_xdp_generic+0x30/0x50 net/core/dev.c:4658
 tun_get_user+0x2bcd/0x4020 drivers/net/tun.c:1935
 tun_chr_write_iter+0xbd/0x156 drivers/net/tun.c:2026
 call_write_iter include/linux/fs.h:1902 [inline]
 do_iter_readv_writev+0x5f8/0x8f0 fs/read_write.c:693
 do_iter_write fs/read_write.c:970 [inline]
 do_iter_write+0x184/0x610 fs/read_write.c:951
 vfs_writev+0x1b3/0x2f0 fs/read_write.c:1015
 do_writev+0x15b/0x330 fs/read_write.c:1058
 __do_sys_writev fs/read_write.c:1131 [inline]
 __se_sys_writev fs/read_write.c:1128 [inline]
 __x64_sys_writev+0x75/0xb0 fs/read_write.c:1128
 do_syscall_64+0xfa/0x790 arch/x86/entry/common.c:294
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x441f30
Code: 05 48 3d 01 f0 ff ff 0f 83 5d 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 83 3d e1 90 29 00 00 75 14 b8 14 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 34 09 fc ff c3 48 83 ec 08 e8 ba 2b 00 00
RSP: 002b:00007fff6ad34eb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000014
RAX: ffffffffffffffda RBX: 00007fff6ad34ed0 RCX: 0000000000441f30
RDX: 0000000000000001 RSI: 00007fff6ad34f00 RDI: 00000000000000f0
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000004
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000001716d
R13: 0000000000402d80 R14: 0000000000000000 R15: 0000000000000000
Modules linked in:
CR2: ffff887f9fa13fff
---[ end trace c0a345d4470d5f70 ]---
RIP: 0010:is_multicast_ether_addr_64bits include/linux/etherdevice.h:135 [inline]
RIP: 0010:netif_receive_generic_xdp net/core/dev.c:4565 [inline]
RIP: 0010:do_xdp_generic.part.0+0x479/0x17a0 net/core/dev.c:4663
Code: 03 48 89 85 f0 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 a5 78 ff ff ff 80 3c 02 00 48 89 8d c8 fe ff ff 0f 85 ac 10 00 00 <49> 8b 04 24 49 8d 7c 24 0c 48 ba 00 00 00 00 00 fc ff df 48 89 85
RSP: 0018:ffffc90000f77770 EFLAGS: 00010246
RAX: dffffc0000000000 RBX: ffff88809fa04000 RCX: ffffffff0000feff
RDX: 1ffff10ff3f427ff RSI: ffff8880950496b0 RDI: 0000000000000005
RBP: ffffc90000f778b0 R08: ffff88809fc4e140 R09: ffffed1013f4085d
R10: ffffed1013f4085c R11: ffff88809fa042e3 R12: ffff887f9fa13fff
R13: 0000000000000100 R14: ffff88809fa13fff R15: ffff888095049640
FS:  00000000014a6880(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffff887f9fa13fff CR3: 00000000a928d000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400