syzbot

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WARNING: net/netfilter/core.c:329 at nf_hook_entry_head+0x230/0x310 net/netfilter/core.c:329, CPU#1: syz.3.2986/16676
Modules linked in:
CPU: 1 UID: 0 PID: 16676 Comm: syz.3.2986 Tainted: G             L      syzkaller #0 PREEMPT(full) 
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
RIP: 0010:nf_hook_entry_head+0x230/0x310 net/netfilter/core.c:329
Code: 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 dc 00 00 00 4d 3b a5 08 01 00 00 0f 84 07 ff ff ff e8 f1 6d 2e f8 90 <0f> 0b 90 eb 98 e8 e6 6d 2e f8 89 ee bf 01 00 00 00 e8 7a 68 2e f8
RSP: 0018:ffffc90002ef71a8 EFLAGS: 00010283
RAX: 000000000000dd5e RBX: 0000000000000005 RCX: ffffc9000fceb000
RDX: 0000000000080000 RSI: ffffffff89907d4f RDI: ffff8880711e8108
RBP: 0000000000000000 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000000 R11: 1ffff11004fba52a R12: ffff888077ca4b80
R13: ffff8880711e8000 R14: ffff888078a7a610 R15: ffff88805945843c
FS:  00007f32a495c6c0(0000) GS:ffff8881249f5000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c40ce86 CR3: 0000000058679000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 __nf_unregister_net_hook+0x7e/0x660 net/netfilter/core.c:491
 nf_unregister_net_hook+0xd5/0x110 net/netfilter/core.c:536
 nft_unregister_flowtable_ops net/netfilter/nf_tables_api.c:9039 [inline]
 __nft_unregister_flowtable_net_hooks+0xfc/0x3f0 net/netfilter/nf_tables_api.c:9054
 nft_unregister_flowtable_net_hooks net/netfilter/nf_tables_api.c:9066 [inline]
 nf_tables_commit+0x249d/0x8c40 net/netfilter/nf_tables_api.c:11225
 nfnetlink_rcv_batch+0x115e/0x2350 net/netfilter/nfnetlink.c:576
 nfnetlink_rcv_skb_batch net/netfilter/nfnetlink.c:649 [inline]
 nfnetlink_rcv+0x3c1/0x430 net/netfilter/nfnetlink.c:667
 netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline]
 netlink_unicast+0x5aa/0x870 net/netlink/af_netlink.c:1344
 netlink_sendmsg+0x8c8/0xdd0 net/netlink/af_netlink.c:1894
 sock_sendmsg_nosec net/socket.c:727 [inline]
 __sock_sendmsg net/socket.c:742 [inline]
 ____sys_sendmsg+0xa5d/0xc30 net/socket.c:2592
 ___sys_sendmsg+0x134/0x1d0 net/socket.c:2646
 __sys_sendmsg+0x16d/0x220 net/socket.c:2678
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xcd/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f32a3b8f749
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f32a495c038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f32a3de6180 RCX: 00007f32a3b8f749
RDX: 0000000004000010 RSI: 0000200000000100 RDI: 0000000000000004
RBP: 00007f32a3c13f91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f32a3de6218 R14: 00007f32a3de6180 R15: 00007fffe3b2b2c8
 </TASK>