BUG: kernel NULL pointer dereference, address: 0000000000000000
#PF: supervisor instruction fetch in kernel mode
#PF: error_code(0x0010) - not-present page
PGD 53b0a067 P4D 53b0a067 PUD 0 
Oops: 0010 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 5835 Comm: syz.4.392 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:0x0
Code: Unable to access opcode bytes at RIP 0xffffffffffffffd6.
RSP: 0018:ffffc900041af618 EFLAGS: 00010246
RAX: 1ffffffff165cfec RBX: 0000000000000000 RCX: 0000000000000001
RDX: ffffc900041af6c0 RSI: 0000000000000001 RDI: ffff8880789b0000
RBP: ffffc900041af730 R08: ffff8880789b003f R09: 1ffff1100f136007
R10: dffffc0000000000 R11: ffffed100f136008 R12: ffffffff8b2e7f60
R13: dffffc0000000000 R14: ffff8880789b0000 R15: ffffe8ffffc4db70
FS:  00007f9d37d726c0(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffffffffffffd6 CR3: 000000007e0b2000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 bond_xdp_xmit+0x2a8/0x470 drivers/net/bonding/bond_main.c:5250
 bq_xmit_all+0xc4b/0x1040 kernel/bpf/devmap.c:391
 __dev_flush+0xbf/0x1b0 kernel/bpf/devmap.c:421
 xdp_do_flush+0xa/0x20 net/core/filter.c:4041
 tun_build_skb drivers/net/tun.c:1708 [inline]
 tun_get_user+0x1f8e/0x3b10 drivers/net/tun.c:1802
 tun_chr_write_iter+0x112/0x1e0 drivers/net/tun.c:2030
 call_write_iter include/linux/fs.h:2179 [inline]
 new_sync_write fs/read_write.c:507 [inline]
 vfs_write+0x748/0xd70 fs/read_write.c:594
 ksys_write+0x153/0x260 fs/read_write.c:647
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f9d39ada98e
Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 <c3> 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08
RSP: 002b:00007f9d37d71fb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f9d37d726c0 RCX: 00007f9d39ada98e
RDX: 0000000000000046 RSI: 0000200000000700 RDI: 00000000000000c8
RBP: 00007f9d39bb106b R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f9d39da2038 R14: 00007f9d39da1fa0 R15: 00007fff32ef6b18
 </TASK>
Modules linked in:
CR2: 0000000000000000
---[ end trace 3ea5502a65085373 ]---
RIP: 0010:0x0
Code: Unable to access opcode bytes at RIP 0xffffffffffffffd6.
RSP: 0018:ffffc900041af618 EFLAGS: 00010246
RAX: 1ffffffff165cfec RBX: 0000000000000000 RCX: 0000000000000001
RDX: ffffc900041af6c0 RSI: 0000000000000001 RDI: ffff8880789b0000
RBP: ffffc900041af730 R08: ffff8880789b003f R09: 1ffff1100f136007
R10: dffffc0000000000 R11: ffffed100f136008 R12: ffffffff8b2e7f60
R13: dffffc0000000000 R14: ffff8880789b0000 R15: ffffe8ffffc4db70
FS:  00007f9d37d726c0(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffffffffffffd6 CR3: 000000007e0b2000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400