syzbot

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=0000000109699000
[0000000000000000] pgd=0800000141a39003, p4d=0800000141a39003, pud=0800000130b18003, pmd=0000000000000000
Internal error: Oops: 0000000086000006 [#1] PREEMPT SMP
Modules linked in:
CPU: 1 PID: 5012 Comm: syz.0.146 Not tainted 6.1.134-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : 0x0
lr : bond_xdp_xmit+0x34c/0x588 drivers/net/bonding/bond_main.c:5589
sp : ffff800021706dc0
x29: ffff800021706f20 x28: 1ffff000042e0dd6 x27: ffff0000da2f0000
x26: ffff0000d1962198 x25: 1ffff000042e0dda x24: ffff800021706ea0
x23: ffff800021706e80 x22: dfff800000000000 x21: fffffbffeffb6ed0
x20: ffff8000144b3c98 x19: 0000000000000000 x18: 1ffff000042e0dd0
x17: 0000000000000000 x16: ffff8000084f3ce0 x15: 0000000000000002
x14: 0000000000000001 x13: ffff0000cea61bc0 x12: 0000000000080000
x11: 0000000000001fd3 x10: ffff80002313c000 x9 : ffff80000cb2a8e4
x8 : 0000000000000000 x7 : 0000000000000000 x6 : 0000000000000000
x5 : 0000000000000000 x4 : 0000000000000000 x3 : 0000000000000000
x2 : ffff800021706e80 x1 : 0000000000000001 x0 : ffff0000da2f0000
Call trace:
 0x0
 bq_xmit_all+0xbb8/0x1070 kernel/bpf/devmap.c:392
 bq_enqueue+0x288/0x30c kernel/bpf/devmap.c:457
 dev_map_enqueue_multi+0xc80/0xdac kernel/bpf/devmap.c:656
 __xdp_do_redirect_frame net/core/filter.c:4317 [inline]
 xdp_do_redirect_frame+0x404/0x5ac net/core/filter.c:4382
 xdp_test_run_batch net/bpf/test_run.c:314 [inline]
 bpf_test_run_xdp_live+0x9a4/0x18a0 net/bpf/test_run.c:362
 bpf_prog_test_run_xdp+0x670/0xf60 net/bpf/test_run.c:1390
 bpf_prog_test_run+0x2dc/0x364 kernel/bpf/syscall.c:3682
 __sys_bpf+0x390/0x654 kernel/bpf/syscall.c:5035
 __do_sys_bpf kernel/bpf/syscall.c:5121 [inline]
 __se_sys_bpf kernel/bpf/syscall.c:5119 [inline]
 __arm64_sys_bpf+0x80/0x98 kernel/bpf/syscall.c:5119
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2bc arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:140
 do_el0_svc+0x58/0x13c arch/arm64/kernel/syscall.c:204
 el0_svc+0x58/0x168 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 ]---