------------[ cut here ]------------
WARNING: CPU: 1 PID: 4575 at net/netfilter/nft_set_pipapo.c:2384 nft_pipapo_destroy+0x784/0x7e0 net/netfilter/nft_set_pipapo.c:2384
Modules linked in:
CPU: 1 PID: 4575 Comm: kworker/1:8 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026
Workqueue: events nf_tables_trans_destroy_work
pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--)
pc : nft_pipapo_destroy+0x784/0x7e0 net/netfilter/nft_set_pipapo.c:2384
lr : nft_pipapo_destroy+0x784/0x7e0 net/netfilter/nft_set_pipapo.c:2384
sp : ffff800021f87990
x29: ffff800021f879b0 x28: dfff800000000000 x27: 1fffe0001edd3c99
x26: dfff800000000000 x25: ffff0000f6e9e4cc x24: ffff0000f6e9e400
x23: ffff0000f6910118 x22: 000000000000000b x21: ffff800013cc48d0
x20: ffff0000f6910110 x19: ffff0000f6e9e4f0 x18: 1fffe00033c1c97e
x17: ffff80001641d000 x16: ffff8000082dd38c x15: 0000000000000000
x14: 0000000000000018 x13: 0000000000ff0100 x12: ffff800018b20e70
x11: ff008000103df45c x10: 0000000000000000 x9 : ffff8000103df45c
x8 : ffff0000d4f00000 x7 : 0000000000000000 x6 : 000000000000003f
x5 : 0000000000000040 x4 : ffffffffffffffe0 x3 : 0000000000000000
x2 : ffff0000f6910110 x1 : ffff0000f6e9e400 x0 : ffff0000f6910128
Call trace:
 nft_pipapo_destroy+0x784/0x7e0 net/netfilter/nft_set_pipapo.c:2384
 nft_set_destroy+0x3ac/0x89c net/netfilter/nf_tables_api.c:5070
 nft_commit_release net/netfilter/nf_tables_api.c:9111 [inline]
 nf_tables_trans_destroy_work+0x9a4/0xd88 net/netfilter/nf_tables_api.c:9151
 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292
 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439
 kthread+0x254/0x2e0 kernel/kthread.c:376
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850
irq event stamp: 27412
hardirqs last  enabled at (27411): [<ffff80000a985c88>] __free_object+0x1e8/0x878 lib/debugobjects.c:355
hardirqs last disabled at (27412): [<ffff800011bcadc0>] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405
softirqs last  enabled at (26990): [<ffff8000109ef7b4>] spin_unlock_bh include/linux/spinlock.h:396 [inline]
softirqs last  enabled at (26990): [<ffff8000109ef7b4>] __fib6_clean_all+0x214/0x338 net/ipv6/ip6_fib.c:2267
softirqs last disabled at (26984): [<ffff8000109ef74c>] spin_lock_bh include/linux/spinlock.h:356 [inline]
softirqs last disabled at (26984): [<ffff8000109ef74c>] __fib6_clean_all+0x1ac/0x338 net/ipv6/ip6_fib.c:2264
---[ end trace 0000000000000000 ]---