BUG: unable to handle page fault for address: ffff887f49a57fff
#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: 0 PID: 29630 Comm: syz-executor.0 Not tainted 5.6.0-rc1-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+0x566/0x11d0 net/core/dev.c:4565
Code: 74 08 48 89 df e8 5a f3 49 fb 4c 89 33 48 8b 9d 60 ff ff ff 48 89 d8 48 c1 e8 03 42 80 3c 38 00 74 08 48 89 df e8 9a f2 49 fb <48> 8b 33 83 e6 01 31 ff 48 89 b5 f0 fe ff ff e8 96 d0 0c fb 48 89
RSP: 0018:ffffc90017e87958 EFLAGS: 00010246
RAX: 1ffff10fe934afff RBX: ffff887f49a57fff RCX: 0000000000000100
RDX: ffff888096685970 RSI: 0000000000000d5a RDI: ffffc90017e87a88
RBP: ffffc90017e87a78 R08: ffffffff866a3083 R09: ffffed10093497dd
R10: ffffed10093497dd R11: 0000000000000000 R12: ffff8880966859c8
R13: ffff888096685900 R14: ffff888049a48000 R15: dffffc0000000000
FS:  00007f54c39ea700(0000) GS:ffff8880aea00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffff887f49a57fff CR3: 000000004fab1000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 do_xdp_generic+0x39/0x110 net/core/dev.c:4663
 tun_get_user+0x1d9d/0x37d0 drivers/net/tun.c:1935
 tun_chr_write_iter+0xac/0x130 drivers/net/tun.c:2026
 do_iter_readv_writev+0x651/0x8e0 include/linux/fs.h:1895
 do_iter_write+0x180/0x590 fs/read_write.c:998
 vfs_writev fs/read_write.c:1071 [inline]
 do_writev+0x239/0x490 fs/read_write.c:1114
 __do_sys_writev fs/read_write.c:1187 [inline]
 __se_sys_writev fs/read_write.c:1184 [inline]
 __x64_sys_writev+0x7d/0x90 fs/read_write.c:1184
 do_syscall_64+0xf7/0x1c0 arch/x86/entry/common.c:294
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
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:00007f54c39e9ba0 EFLAGS: 00000293 ORIG_RAX: 0000000000000014
RAX: ffffffffffffffda RBX: 00000000000013bf RCX: 000000000045b271
RDX: 0000000000000001 RSI: 00007f54c39e9c00 RDI: 00000000000000f0
RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000
R10: 00007f54c39ea9d0 R11: 0000000000000293 R12: 00000000ffffffff
R13: 0000000000000b7b R14: 00000000004cc5c8 R15: 000000000075bf2c
Modules linked in:
CR2: ffff887f49a57fff
---[ end trace 3b1f2be2902c524f ]---
RIP: 0010:is_multicast_ether_addr_64bits include/linux/etherdevice.h:135 [inline]
RIP: 0010:netif_receive_generic_xdp+0x566/0x11d0 net/core/dev.c:4565
Code: 74 08 48 89 df e8 5a f3 49 fb 4c 89 33 48 8b 9d 60 ff ff ff 48 89 d8 48 c1 e8 03 42 80 3c 38 00 74 08 48 89 df e8 9a f2 49 fb <48> 8b 33 83 e6 01 31 ff 48 89 b5 f0 fe ff ff e8 96 d0 0c fb 48 89
RSP: 0018:ffffc90017e87958 EFLAGS: 00010246
RAX: 1ffff10fe934afff RBX: ffff887f49a57fff RCX: 0000000000000100
RDX: ffff888096685970 RSI: 0000000000000d5a RDI: ffffc90017e87a88
RBP: ffffc90017e87a78 R08: ffffffff866a3083 R09: ffffed10093497dd
R10: ffffed10093497dd R11: 0000000000000000 R12: ffff8880966859c8
R13: ffff888096685900 R14: ffff888049a48000 R15: dffffc0000000000
FS:  00007f54c39ea700(0000) GS:ffff8880aea00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffff887f49a57fff CR3: 000000004fab1000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400