loop4: detected capacity change from 0 to 512
EXT4-fs (loop4): mounted filesystem without journal. Quota mode: writeback.
Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000
Mem abort info:
  ESR = 0x0000000086000006
  EC = 0x21: IABT (current EL), IL = 32 bits
  SET = 0, FnV = 0
  EA = 0, S1PTW = 0
  FSC = 0x06: level 2 translation fault
user pgtable: 4k pages, 48-bit VAs, pgdp=0000000110f8c000
[0000000000000000] pgd=080000011bb13003, p4d=080000011bb13003, pud=0800000113f53003, pmd=0000000000000000
Internal error: Oops: 0000000086000006 [#1] PREEMPT SMP
Modules linked in:
CPU: 0 PID: 4870 Comm: syz.4.128 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026
pstate: 82400805 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=-c)
pc : 0x0
lr : bond_xdp_xmit+0x284/0x480 drivers/net/bonding/bond_main.c:5675
sp : ffff800021747160
x29: ffff800021747220 x28: ffff800021747188 x27: dfff800000000000
x26: ffff7000042e8e38 x25: ffff800012da2b98 x24: ffff0000d3bf0000
x23: fffffbffeff9a8d0 x22: ffff0000f17b4000 x21: fffffbffeff9a8d0
x20: 0000000000000000 x19: 0000000000000000 x18: 0000000000000000
x17: 0000000000000000 x16: ffff8000082dba2c x15: 0000000000000002
x14: 0000000000000001 x13: 0000000000ff0100 x12: 0000000000080000
x11: 0000000000002475 x10: ffff8000276f9000 x9 : ffff8000217471c0
x8 : 0000000000000000 x7 : 0000000000000000 x6 : 0000000000000000
x5 : 0000000000000000 x4 : 0000000000000008 x3 : 0000000000000000
x2 : ffff8000217471e0 x1 : 0000000000000001 x0 : ffff0000d3bf0000
Call trace:
 0x0
 bq_xmit_all+0xb0c/0xf8c kernel/bpf/devmap.c:392
 bq_enqueue+0x28c/0x310 kernel/bpf/devmap.c:457
 __xdp_enqueue kernel/bpf/devmap.c:488 [inline]
 dev_map_enqueue+0x174/0x30c kernel/bpf/devmap.c:534
 __xdp_do_redirect_frame net/core/filter.c:4362 [inline]
 xdp_do_redirect_frame+0x208/0x574 net/core/filter.c:4424
 xdp_test_run_batch net/bpf/test_run.c:314 [inline]
 bpf_test_run_xdp_live+0x8cc/0x1610 net/bpf/test_run.c:362
 bpf_prog_test_run_xdp+0x618/0xd10 net/bpf/test_run.c:1457
 bpf_prog_test_run+0x2dc/0x36c kernel/bpf/syscall.c:3695
 __sys_bpf+0x504/0x660 kernel/bpf/syscall.c:5049
 __do_sys_bpf kernel/bpf/syscall.c:5135 [inline]
 __se_sys_bpf kernel/bpf/syscall.c:5133 [inline]
 __arm64_sys_bpf+0x80/0x98 kernel/bpf/syscall.c:5133
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x290 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x13c/0x258 arch/arm64/kernel/syscall.c:140
 do_el0_svc+0x5c/0x134 arch/arm64/kernel/syscall.c:204
 el0_svc+0x58/0x128 arch/arm64/kernel/entry-common.c:637
 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585
Code: bad PC value
---[ end trace 0000000000000000 ]---