netlink: 8 bytes leftover after parsing attributes in process `syz.6.5144'. netlink: 4 bytes leftover after parsing attributes in process `syz.6.5144'. ------------[ cut here ]------------ WARNING: CPU: 1 PID: 26698 at net/netfilter/core.c:329 nf_hook_entry_head+0x23e/0x2c0 net/netfilter/core.c:329 Modules linked in: CPU: 1 UID: 0 PID: 26698 Comm: syz.6.5144 Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025 RIP: 0010:nf_hook_entry_head+0x23e/0x2c0 net/netfilter/core.c:329 Code: 4c 89 f8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df 80 3c 08 00 74 08 4c 89 ff e8 bd 46 b0 f8 4d 39 37 74 36 e8 93 96 4a f8 90 <0f> 0b 90 31 db 48 89 d8 5b 41 5e 41 5f 5d c3 cc cc cc cc cc e8 79 RSP: 0018:ffffc9000b416ea0 EFLAGS: 00010287 RAX: ffffffff8975ad1b RBX: ffff888046304000 RCX: 0000000000080000 RDX: ffffc90012c24000 RSI: 0000000000003ec9 RDI: 0000000000003eca RBP: 0000000000000000 R08: ffff8880252fdac0 R09: 0000000000000006 R10: 000000000000000a R11: 0000000000000002 R12: ffff888049114900 R13: 0000000000000005 R14: ffff888049114900 R15: ffff888046304108 FS: 00007f54e25b86c0(0000) GS:ffff888125e0c000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000020000026f030 CR3: 000000004ca50000 CR4: 00000000003526f0 Call Trace: __nf_unregister_net_hook+0x74/0x700 net/netfilter/core.c:491 nft_unregister_flowtable_ops net/netfilter/nf_tables_api.c:8979 [inline] __nft_unregister_flowtable_net_hooks net/netfilter/nf_tables_api.c:8994 [inline] nft_unregister_flowtable_net_hooks net/netfilter/nf_tables_api.c:9006 [inline] nf_tables_commit+0x4062/0xa1b0 net/netfilter/nf_tables_api.c:11165 nfnetlink_rcv_batch net/netfilter/nfnetlink.c:576 [inline] nfnetlink_rcv_skb_batch net/netfilter/nfnetlink.c:649 [inline] nfnetlink_rcv+0x1ac9/0x2590 net/netfilter/nfnetlink.c:667 netlink_unicast_kernel net/netlink/af_netlink.c:1320 [inline] netlink_unicast+0x82f/0x9e0 net/netlink/af_netlink.c:1346 netlink_sendmsg+0x805/0xb30 net/netlink/af_netlink.c:1896 sock_sendmsg_nosec net/socket.c:727 [inline] __sock_sendmsg+0x21c/0x270 net/socket.c:742 ____sys_sendmsg+0x505/0x830 net/socket.c:2630 ___sys_sendmsg+0x21f/0x2a0 net/socket.c:2684 __sys_sendmsg net/socket.c:2716 [inline] __do_sys_sendmsg net/socket.c:2721 [inline] __se_sys_sendmsg net/socket.c:2719 [inline] __x64_sys_sendmsg+0x19b/0x260 net/socket.c:2719 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0xfa0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f54e178eec9 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:00007f54e25b8038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f54e19e5fa0 RCX: 00007f54e178eec9 RDX: 0000000000000000 RSI: 0000200000000080 RDI: 0000000000000004 RBP: 00007f54e1811f91 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f54e19e6038 R14: 00007f54e19e5fa0 R15: 00007f54e1b0fa28