BUG: kernel NULL pointer dereference, address: 0000000000000000
#PF: supervisor instruction fetch in kernel mode
#PF: error_code(0x0010) - not-present page
PGD 48de6067 P4D 48de6067 PUD 0 
Oops: 0010 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 13501 Comm: syz.2.1927 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
RIP: 0010:0x0
Code: Unable to access opcode bytes at RIP 0xffffffffffffffd6.
RSP: 0018:ffffc9000116f618 EFLAGS: 00010246
RAX: 1ffffffff1559c8c RBX: 0000000000000000 RCX: 0000000000000001
RDX: ffffc9000116f6c0 RSI: 0000000000000001 RDI: ffff88807993a000
RBP: ffffc9000116f730 R08: ffff88807993a03f R09: 1ffff1100f327407
R10: dffffc0000000000 R11: ffffed100f327408 R12: ffffffff8aace460
R13: dffffc0000000000 R14: ffff88807993a000 R15: ffffe8ffffce7e68
FS:  00007f03200826c0(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffffffffffffd6 CR3: 0000000061736000 CR4: 00000000003506f0
DR0: 0000000000000008 DR1: 0000000000000007 DR2: 0000000000000004
DR3: 0000000000000008 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 bond_xdp_xmit+0x288/0x440 drivers/net/bonding/bond_main.c:5244
 bq_xmit_all+0xc25/0x1000 kernel/bpf/devmap.c:391
 __dev_flush+0xbf/0x1b0 kernel/bpf/devmap.c:421
 xdp_do_flush+0xa/0x20 net/core/filter.c:4002
 tun_build_skb drivers/net/tun.c:1703 [inline]
 tun_get_user+0x2ad2/0x3a70 drivers/net/tun.c:1797
 tun_chr_write_iter+0x112/0x1e0 drivers/net/tun.c:2019
 call_write_iter include/linux/fs.h:2173 [inline]
 new_sync_write fs/read_write.c:507 [inline]
 vfs_write+0x745/0xd60 fs/read_write.c:594
 ksys_write+0x152/0x260 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: 0033:0x7f0321de968e
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:00007f0320081fb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f03200826c0 RCX: 00007f0321de968e
RDX: 0000000000000032 RSI: 0000200000000000 RDI: 00000000000000c8
RBP: 00007f0321ebed6f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f03220a2038 R14: 00007f03220a1fa0 R15: 00007ffe728c00c8
 </TASK>
Modules linked in:
CR2: 0000000000000000
---[ end trace add2d18a252ffde5 ]---
RIP: 0010:0x0
Code: Unable to access opcode bytes at RIP 0xffffffffffffffd6.
RSP: 0018:ffffc9000116f618 EFLAGS: 00010246
RAX: 1ffffffff1559c8c RBX: 0000000000000000 RCX: 0000000000000001
RDX: ffffc9000116f6c0 RSI: 0000000000000001 RDI: ffff88807993a000
RBP: ffffc9000116f730 R08: ffff88807993a03f R09: 1ffff1100f327407
R10: dffffc0000000000 R11: ffffed100f327408 R12: ffffffff8aace460
R13: dffffc0000000000 R14: ffff88807993a000 R15: ffffe8ffffce7e68
FS:  00007f03200826c0(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffffffffffffd6 CR3: 0000000061736000 CR4: 00000000003506f0
DR0: 0000000000000008 DR1: 0000000000000007 DR2: 0000000000000004
DR3: 0000000000000008 DR6: 00000000fffe0ff0 DR7: 0000000000000400